0 Hyp • Check for bending6 o Plane sections remain plane. Quality assurance; Simply request LMATS’ supportive staff and they will assist you to complete your. Calculate self weight of the concrete slabs; 3. This calculator will compute the acceptable Allied galvanized steel tubing product size based on length and load criteria. Steel-reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior p. Now, If we consider the Finishing load to be 1 kN per meter and superimposed live load to be 2 kN per meter. 14 r^2 = radius squared or radius x radius (radius is 1/2 the diameter) h = height in inches Here's. " The next five steps calculate the positive moments due to dead load and the construction loads specified in the criteria namely: 20 PSF uniform load or 150 lb. Any Air Conditioning & Heating system not only consumes vast amounts of a home’s total energy budget, but also impacts the comfort and well-being of the occupants more than any other system in a house. We have seen situations where a 6" thick slab was in place, but the capacity was rated at just 10,000 pounds due to the proximity of the water table to the surface. Description. When the moment capacity of the slab is reduced to the magnitude of the moment caused by the applied load, flexural collapse will occur. In the end, after calculating the entire load on a column, please do not forget to add in the factor of safety. The presented methodology is useful to make informed decision about continued use of structures after a fire event. Floor capacity depends on the thickness of the concrete as well as the compression rate of the soil underneath the slab. of 50 kg bag of cement, 0. lb/ft 3 w = f' c = psi f y = psi Wire Reinforcement Institute (WRI) Method presents design nomographs for slab thickness determination based on solutions using a discrete element computer model for the concrete slab as a continuum on a Winkler foundation. Reinforcing schedules for a mixing and loading pad floor slab on grade with one layer of reinforcing are shown in Tables 5. It is also discussed in ACI 360R-92(4). with the help of beams. 5 tonnes per linear metre. The total unit dead load is the sum of the component weights plus a "miscellaneous" factor to account of minor items not included specifically in the calculation. We'ld give this information to the floor designer and let him decide what remedial action, if any, is needed. The hollow concrete blocks were tested in the compression testing machine. 60 for # 5 and larger rebar steel ASTM A53, Gr. Concrete is the normalweight 3000 psi. Square or Rectangle Concrete Slab: Notes: Pre-mix concrete comes in bags that are 60 lbs. non symmetric reinforcement amount calculated for required load capacity (i. Inroduction When the ratio (L/S) is less than 2. Superior loading – Exceptional engineering and the latest technology ensure our precast double tee slabs and beams provide impressive load capacity and strength. Compressive strength of concrete for footings to floors should be 2500 -3000 psi or more at 30 days when poured & cured properly. 18 BTU/lb/degree F. Yet this method needed to be safe and be able to deliver realistic results. when the applied moment becomes equal to the flexural capacity of the slab cross section, the. for the prediction of cracking load capacity in concrete slabs. Example 2: Design the roof slab, beam and column of house given in figure 1. fatigue testing, failure patterns in slabs versus beams, etc. For calculating self load for slab we have require self weight of concrete that is 2500 kg/m3 for RCC slab and self weight of Steel that is approx 8000 kg/m3. bearing unless specified otherwise. Of bars and their dimensions in the one-meter span of the slab in a shorter direction. 2012-01-01 00:00:00 Strength capacity of square reinforced concrete slabs Ã ber das BelastungsvermÃ¶gen von quadratischen StahlbetonblÃ¶cken Â´ Â´ Ë Ë D. Load causes - deflection (downwards) - bottom of the beam will be in tension while top in compression. Quality assurance; Simply request LMATS’ supportive staff and they will assist you to complete your. 83 m 3 of stone aggregate. The amount of concrete you require will display in cubic metres in the blue box. Specifications For basic calculations, main input data and other information, like description. Using both Bigfoot Systems Footing Forms and construction tubes combined - Model BF24 with a 10 inch tube 6 feet long: 6 ft. 1) self weight of column. elements installed before the concrete slab is cast = 0. 5, the deflection specifications for two-way slabs. A 6-inch-deep slab is slightly more expensive, costing $7. product of the overall slab thickness, 12 in. What is the weight bearing capacity per square yard of a 4" monolithic concrete floor slab poured with 3000 psi concrete in 50' x 50' squares, reinforced with 6" x 6" x 10" steel wire mesh, laid ov. The construction operation in which shoring equipment (also called reshores or reshoring equipment) is placed, as the original forms and shores are removed in order to support partially. 6 Calculate the factored load by magnifying service dead and live loads according to this equation w u 1. 62 to supports 1. For a simple 2x4 wood wall, I think you would be fine if the concrete was cured properly and is on halfway decent ground. 1 INTRODUCTION. This analysis includes : - the classification of the cross-section, - the calculation of bending resistance, - the calculation of shear resistance, - the calculation of longitudinal shear resistance of the slab,. of 50 kg bag of cement, 0. ARCH 631 Note Set 10. 8 for concrete box girders and T-beams, 1. However, the midspan deflection estimates exhibit large variability. Typ - ical size loads for a two storey house built with standard concrete block work are 4. In reinforced concrete construction, slabs are used to provide flat, useful surfaces. 5(alternate) and 5. f y = The yield strength of the steel (e. High Efficient Slab Table Formwork System Floor Props Modular Size / Project Specific Design. Accordingly, main reinforcement is required in the two directions. ) • Check for posting on section loss example Check Type M3, M3S2 and M3S3 at operating level To get posting weight take truck weight times rating factor 1. Adjust the calculation based on the type of concrete. Let’s find out the capacity of the slab! Step 1 – Find out the no. The purpose of the study is to gain more on the static and knowledge dynamic behaviour of the slabs and to use that knowledge in the assessment of the load. The ultimate bearing capacity is dominated by bending or punching shear of slab, depending on the depth and the reinforcement ratio of the slab. Contents:Basics of Reinforced Concrete Slab Design1. Figure 3-34. Concrete members (such as walls, panels, slabs, columns, and beams) that have been formed, cast, and cured prior to final placement in a structure. 64 psi S s = WS/(P a /1000) Slab Tickness, t = 5. The width-to-span ratio was around 1 and the supports were angled up to about 30°, giving rise to a complex three-dimensional behaviour, which was seen and studied in the nonlinear results. Prestressed reinforced concrete structures have a deflection, the size of which depends on non-centricity of application of prestressed reinforcement tensile strength to the cross-section, cross-section rigidness and length of the element. Typ - ical size loads for a two storey house built with standard concrete block work are 4. As the strength of the steel reinforcement decreases, the moment capacity of the slab decreases. 0) we constructed different. 94 Single or upper storey bottom plates to floor frame or slab 1. This analysis includes : - the classification of the cross-section, - the calculation of bending resistance, - the calculation of shear resistance, - the calculation of longitudinal shear resistance of the slab,. c7 T i Example Design suitable vertical stirrups for a reinforced concrete beam given that I/(dead load) = 150 kN, ‘C/(live load) = 100 kN, b, = 300 mm,. Composite moment capacity theory The moment capacity of a compos-ite steel joist can be calculated using the simple model shown in Figure 3. Title: Microsoft Word - h_slabs. 5(alternate) and 5. 5 psf 1/2" Drywall = 2. PAGE 180 180 Slab 6 was the only slab that had no compressive reinforcement at the midspan and at the end supports. Design Step 4. frame or slab 1. We have seen situations where a 6" thick slab was in place, but the capacity was rated at just 10,000 pounds due to the proximity of the water table to the surface. Maximum load bearing capacity curves are presented for each slab profile; Slab fire resistance - REI60. 6 HP Honda Gas Vibratory Concrete Power Screed: 14 ft. At Arnold Ready Mix, we can deliver 1-11 yards of concrete to your job site in a single trip. Calculation of Moment Capacity of the column for balanced failure. The concrete poured exceeded 3,700 psi when cured. This will tell you if you if there may be a problem in the project plan that needs the expensive attention of an engineer. A short load concrete delivery is best for small residential and commercial projects that require small quantities of concrete. If the slab is on sand or unstable ground, it will be weaker. A 6-inch-deep slab is slightly more expensive, costing $7. Concrete mix pump is a very useful machine which definitely combines the features of traditional concrete pump and concrete mixer together. Let’s find out the capacity of the slab! Step 1 – Find out the no. This paper is focused on the experimental study and numerical simulation of isolated spread concrete foundation slab with a large width-to-height ratio (in short ISCFS-LWR) to investigate the failure modes and uplift bearing capacity, as well as the design method of uplift capacity. To calculate heat capacity, use the formula: heat capacity = E / T, where E is the amount of heat energy supplied and T is the change in temperature. Quality assurance; Simply request LMATS’ supportive staff and they will assist you to complete your. Assume a footing depth of 1 ft, 3. Concrete Flexual Strength, MR = psi: MR = 9*SQRT(f 'c) (Modulus of Rupture) Concrete Working Stress, WS = psi: WS = MR/FS: Slab Stress/1000 lb. 5 psf 1/2" Plywood Panel = 1. Example calculation Estimate the quantity of cement, sand and stone aggregate required for 1 cubic meter of 1:2:4 concrete mix. Factored live load = calculated live load*1. reinforced concrete roof placed on a metal deck that spans 7' between beams. A typical punching shear failure of a bridge deck during testing is shown in Fig. Assist with establishing load bearing capacity in suspended slabs. We know the drawing details of slab like no. 3(8), even though it is the most common method in some countries. Muhammed (2012), tested eight self-compacting concrete slabs. Kvc is the shear strength of concrete when required stirrups areused in members made with fc’ = 4000 psi concrete. Strength capacity of square reinforced concrete slabs Strength capacity of square reinforced concrete slabs Matešan, D. This calculator is to be used as an estimating tool ONLY. The suspended reinforced concrete slab is tied into the external capping beam at floor level. Self-weight of the walls is modeled as an axial distributed load acting in the negative y-direction. The mesh reinforcement in the slab is placed in the top with 1" covers. Blade and 1. RAPT will design the following floor systems:- Flat Slab/Flat Plate. Re: weight of concrete slab I suppose it depends on how much rebar is in it and other things, but I'd say around 2 US tons (using 150 lb/ft³ for the density). (60 cm) diameter plate to attain proper interface conditions. 60 psi WS = MR/FS Slab Stress/1000 lb. This results does not agree. The failure midspan deflection was 53. At a minimum, the added core-fill concrete should provide additional shear capacity calculated as if the. SERVICE LOAD: The expected unfactored load to a foundation unit. DESIGN OF PILES BASED ON LOAD CAPACITY. Example 2: Design the roof slab, beam and column of house given in figure 1. For example, if it takes 2,000 Joules of energy to heat up a block 5 degrees Celsius, the formula would look like: heat capacity = 2,000 Joules / 5 C. The shear capacity of the composite deck alone is added to the beam shear capacity of the concrete to arrive at the total beam shear capacity of the slab. of 50 kg bag of cement, 0. They are projections from wall face of lintel beams or floor slabs. design of pt slab on grade as per us code: 29: seismic design of special moment resisting frame as per aci: 30: shear wall design as per aci: 31: tilt - up panel design as per aci: 32: concrete slab capacity as per aci: 33: bolt anchorage to concrete as per aci: 34: design of concrete beam as per aci: 35: design of concrete deep beam as per aci: 36. A142 Reinforcement Mesh; A193 Reinforcement Mesh; A252 Reinforcement Mesh; A393 Reinforcement Mesh; Reinforcement Mesh Tying Wire; CONCRETE, PLASTIC AND WIRE REINFORCEMENT SPACERS; Concrete Slab Edge Shutter; Advantages of Steel Decking; Contact; Metfloor Concrete Volume Calculator; Structural Roof Deck; MF Wedge Nuts. Can be used for larger spans with relatively higher cost and higher deflections One-way joist system suitable span 6 to 9m with LL= 4-6KN/m2. The experiment made included a 2. As the strength of the steel reinforcement decreases, the moment capacity of the slab decreases. To calculate the load-bearing capacity of RCC slab, certain assumptions to be considered. When concrete pipe has been installed underground, the soil-structure system will continually show an increase in load capacity. 00 per square foot. It is a five-span reinforced concrete bridge with a continuous slab on supports made out of rows of columns. 0 psf Total = 16. Let’s find out the capacity of the slab! Step 1 – Find out the no. The point of peak thrust leads to a more accurate index of the peak load capacity than midspan deflection. - the security margin compensates any calculation mistake due to minor mistakes in cols rooms dimmensions or storaged goods features. About OnlineCalculators Online calculators and converters have been developed to make calculations easy, these calculators are great tools for mathematical, algebraic, numbers, engineering, physics problems. 0 psf 7/8" Stucco = 10. PURPOSE AND SCOPE This project was designed to determine the cause and extent of damage to the deck slab and its structural capacity. Øverli [12] captured the non-linear behaviour of the slab on grade using a nonlinear finite element ready package DIANA. The original theory and equations by H. Floor capacity depends on the thickness of the concrete as well as the compression rate of the soil underneath the slab. elements installed before the concrete slab is cast = 0. 1—Early-age concrete material strength development 4. Weight Calculator KG/Cubic Metres for Concrete. The concrete slab thickness is determined based on estimated wheel and axle loadings, and soil subgrade design factors. Concrete structure, post-fire assessment, residual capacity, safety level, reliability analysis, numerical modelling, simple method, Eurocode. RAPT will design the following floor systems:- Flat Slab/Flat Plate. calculation of the load-carrying capacity of FRC slabs on grade. 1a shows a simply supported, uniformly loaded reinforced concrete slab. Biaxial bending, isolated column (stability control), Computation of moment capacity of concrete column cross-sections and sections strengthened with FRP (fibre-reinforced polymers). Figure 3 shows the calculated cumulative fatigue damage at failure (50% slabs cracked) for full scale slabs tested under. 5R, sand of (0-4 mm), gravel of (4-16 mm), water and plasticizer were used for the concrete mix. With an evenly distributed live load of 30 psf, which the tables show the floor is able to support, the total weight on the floor would be about 3,360 pounds. Beam Behaviour Before discussing the moment capacity calculation, let us review the behavior of a reinforced concrete simple beam as the load on the beam increases from zero to the magnitude that would cause failure. ARCH 631 Note Set 10. The estimate uses the axial force-moment interaction equations and a ratio for the peak thrust to the slab's axial capacity, and results in an accurate estimate of the peak compressive membrane capacity. Wind load calculation ASCE 7-05 & 02 Wind load calculation: Basics in ASCE 7-05 & 02. 2) Bridge over Kuivajärvi – A one span concrete slab-frame bridge built in 1954. 07 kg/cm2) was applied and released 10 times by using a 24-in. When the tensile stress on the top surface of the concrete slab exceeds the concrete flexural strength, flexural cracks form. hmin = (inner perimeter of slab panel)/180 ≥ 90 mm. The user should use other appropriate load combinations if roof live load is treated separately, or if other types of loads are present. SS Series Hydraulically driven vacuum pump operates using the auxiliary hydraulics from the host machine (Minimum 10 GPM required with maximum 3,000 PSI). T (in) S (ft) 7 ½" 5'-7". Prdictcd Sheaf Capacity (kN) Fig. Hence, biaxial voided slabs are modeled as two top and bottom concrete plates incorporating plastic balls, which leads to the elimination of ineffective concrete as a result of these balls. The steel deck is to be used on a three-span condition and shoring is not permitted. Load Rating Example #1 (Cont. PURPOSE AND SCOPE This project was designed to determine the cause and extent of damage to the deck slab and its structural capacity. The results were in reasonable agreement with previously developed models in literature. Beam Express - Beam static analysis and reinforced concrete beam design by EC2 pca column and pca beam - Analysis and design reinforced concrete columns and beam EngiSSol Cross Section Analysis & Design - Performs all calculation tasks for composite, built up and generic cross sections of any material. INSTA-FOOTING STEEL PLATE DESCRIPTION The Insta-Footing plates are manufactured from ½-inch thick A36 carbon steel with a minimum yield strength of 36 KSI. 5 psf 1/2" Plywood Panel = 1. We'ld give this information to the floor designer and let him decide what remedial action, if any, is needed. The presented methodology is useful to make informed decision about continued use of structures after a fire event. Reinforcement for Slab4. Consequently, if there is going to be a concrete slab failure, it generally occurs earlier rather than later. The method has since then become widely used in practical fire engineering design in the UK, both in its original form and as a. Accordingly, main reinforcement is required in the two directions. If the slab is on very compcted hard ground with gravel, it should be very strong. A reinforced concrete slab is a broad, flat plate, usually horizontal, with top and bottom surfaces parallel or nearly so. This structure was designed to be more solid when used on longer spans and with heavier loads. Such important structures as slabs, walls, beams, columns, frames and foundations are made of reinforced concrete. 0 long and you want the concrete to be 100mm thick. Another means of increasing the tensile strength of a slab is to double the curtain with a cage. Need to calculate the Floor Load Capacity PSF for a Raise Steel Platform (Mezzanine) with an 4" thick concrete floor. Concrete Working Stress, WS = 284. Hence, biaxial voided slabs are modeled as two top and bottom concrete plates incorporating plastic balls, which leads to the elimination of ineffective concrete as a result of these balls. 125 x 1 x 2400 = 300 kg which is equivalent to 3 kN. Weight Calculator KG/Cubic Metres for Concrete. A1 = Factor for dead loads A2 = Factor for live load How to calculate the rating factor (RF) Load Rating 3 RF = C - A1 * D A2 * (L + I) C = Capacity of the. For concretes with normal reinforcement ratios, the dead load is usually estimated at 22 to 25 kN/m 3. Failure was happened at an approximate load (339) kN/m2 by CFRP debonding due to the propagation of diagonal flexural cracks at bottom face of the concrete slab similar to the behavior of specimen. Figure B-10: Alternative Floor Slab Detail. 5(alternate) and 5. The KORE Passive Slab is combined with our KORE Floor Insulation product. Line method (Johansen 1972). Slab edge insulation reduces termite risk. 5—Formwork adequacy Chapter 5—Construction examples, p. Assumption: Plane sections remain plane, the strain distribution will be as shown. 1—Two-way slab construction. The SAFI CONCRETE CALCULATOR™ is used as a standalone application or in combination with the GSE CONCRETE DESIGN, part of the GSE (General Structural Engineering) software. 4—Serviceability requirements 4. [Note: SEE Fig. The purpose of the study is to gain more on the static and knowledge dynamic behaviour of the slabs and to use that knowledge in the assessment of the load. simple beam-uniformly distributed load 2. Since the strength of concrete continues to increase over time, a standard time period for concrete strength measurement is necessary. How to calculate concrete for cylinders and sono-tubes. Structural analysis / Calculation methods - Overview. 75 h for fibre reinforced concrete h mm = slab thickness h sp mm = depth of standard notched beam (125 mm) I 4 =mm moment of inertia l mm = radius of relative stiffness l mm = span of standard notched beam (500 mm) P u N = ultimate capacity under concentrated load P* N = ultimate design concentrated load P* lin. The trial depth is selected based on span/depth ratio of 7, as in IS:456. ; Čamber, V. Concrete Reinforcement. The "Slab on Grade" worksheet assumes a structurally unreinforced slab, ACI-360"Type B", reinforced only for shrinkage and temperature. Precast prestressed concrete hollow core slab units (min. At Neutral Axis – No Tension/Compression. As a consequence of this, the self weight load that should be considered in the construction condition corresponds to the design thickness of the slab with a normal concrete density of 26 kN/m³. PAGE 180 180 Slab 6 was the only slab that had no compressive reinforcement at the midspan and at the end supports. Input length, width and depth of the area. With Wisdom We Explore. A pallet's load capacity is the maximum amount of weight that the pallet is designed to carry. On rammed surface a layer of cement concrete is laid. In this regard, tests were carried out on full-size bridge slabs to obtain infor mation on the shear, hond, deflection and ultimate strength properties under static and repeated loads. It then determines the total load from each tributary area based on the design load of your deck. 5000 PSI) shall be in 4 or 8 foot widths and shall meet PCI standards and tolerances, 2" min. Let’s find out the capacity of the slab! Step 1 – Find out the no. maximum load capacity is reached and the slab is considered to have structurally failed. Concrete slab cost by size. Assumptions: 1. 85 per square foot on average. where is the modulus of elasticity of concrete in kg/cm (3 10), is the thermal coefficient of concrete per C (1 10) is the temperature difference between the top and bottom of the slab, and are the coefficient based on in the desired direction and right angle to the desired direction, is the Poisson's ration (0. concrete beams (further for the evaluation of plated concrete decks), Series II: the effect of side steel plate bonding on the shear capacity of stocky reinforced concrete beams,9 and Series III: the load-carrying capacity of two 75- year-old deteriorated concrete girders with the steel plate bonded to the soffit. The parameters x1 and x2 denote distance between axle loads, parameter xmax is used to locate the middle-axle’s distance from the left support. Compressive strength of concrete for footings to floors should be 2500 -3000 psi or more at 30 days when poured & cured properly. wconcrete - 145 pcf n = Es/Ec - 9 Rbe is the exterior web crippling capacity based on 2. The top slab, wall, and all haunch weights are applied to the bottom slab as an upward reaction from the soil in an equivalent uniform pressure. When concrete pipe has been installed underground, the soil-structure system will continually show an increase in load capacity. If you have three identical floor slabs separated by rigid props (Figure 3), applying a load to the top slab would cause all three slabs to deflect by the exact same amount. We have a basement in only 1/3 of the home. Note that the maximum stress quoted is a positive number, and corresponds to the largest stress magnitude in the beam. t = determined and input from Figure 7b above. SUPPORTING COMPONENTS TYPE OF DECK TYPICAL CROSS-SECTION Steel Beam Cast-in-place concrete slab, precast concrete slab, steel. Weight Load and 19-3/8 in. The Quasi-Coulomb Criterion is taken as the strength criterion of concrete, according to plastic limit theory, and the calculation equation of punching shear limit bearing capacity of unbounded prestressed concrete slab is derived through the establishment of virtual work equation. Riveted grating (regular duty) Load Calculator : Panel Width Calculator : 1-1/8in bearing bar clear spacing 18xxy 3/4in bearing bar clear spacing. Step-4 Determination of factored moment: Moments for beams and one way slab Factored moment coefficient found in ACI Code section 8. As a consequence, the load bearing capacity and cracked stiffness of a slab increases. The load-bearing structure consists of a prestressed timber frame construction in both main directions. Slab-on-grade analysis, (not possible with X-Ray) Services like Electrical and Refrigeration line detection for supermarkets prior to concrete cutting. The KORE Passive Slab can be designed to accommo-date these loads with spare capacity. 125 x 1 x 2400 = 300 kg which is equivalent to 3 kN. Application Suitable for lifting marble and granite slabs, tomb stones, concrete barriers, curbs (kerbs) and median walls. Any section along the moment slab should not fail in shear, bending, or torsion when the barrier is subjected to the design impact load. product of the overall slab thickness, 12 in. 08-28-2011, 10:51 PM #18. The top slab, wall, and all haunch weights are applied to the bottom slab as an upward reaction from the soil in an equivalent uniform pressure. The limiting factor that you need to consider is the strength and compaction of what's under the concrete. Ready Mix Concrete Dispatch: (800) 834-7557 Rock and Sand Dispatch: (800) 232-3695. We have seen situations where a 6" thick slab was in place, but the capacity was rated at just 10,000 pounds due to the proximity of the water table to the surface. For a simple 2x4 wood wall, I think you would be fine if the concrete was cured properly and is on halfway decent ground. Cantilever “one-to-three”. Online engineering calculator will help you maximum strength a wall can hold, use it now it is free. 4 + f y /100,000] = 10’ x12”/20 [0. Table 2b contains values Kvs for determining nominal stirrup capacity Vs = Kvs(Av/s). Structural reinforcement is typically placed in the bottom portion of the slab thickness to increase the slab's load capacity. 3—Early-age capacity of concrete slabs 4. So, the Self-weight of each square meter of the slab would be = 0. Moreover, needed informations are slab thickness and girder spacing to calculate maximum moment due to wet weight of slab. The slab is constructed on well compacted granular fill, crushed stone or marl. 4—Serviceability requirements 4. 3 Dead Load Rating Factor × + × =. 83% for small and large opening respectively, while CFRP increased the load capacity by 46. The size of trench varies with the thickness of walls and the load bearing capacity of the soil. This high loading assumes that the area around the concentrated load is unloaded. t = determined and input from Figure 7b above. Therefore, each slab would effectively be taking 33% of the total applied load, as load/deflection is proportional. 94 Single or upper storey bottom plates to floor frame or slab 1. Discussion: Expansion Joints…. aluminum alloys) should use other formulas. Estimate any other loads (e. On the Vu diagram, identify locations where (1) Shear Reinforcement required, (2) where shear reinforcement not required, (3) where shear carried by stirrups, φV s , and (4) where minimum shear reinforcement required (Shear carried by concrete, φV c ). PAGE 180 180 Slab 6 was the only slab that had no compressive reinforcement at the midspan and at the end supports. A calculation professionally referred to in the Construction Industry as a Manual J based load analysis. Steel reinforcing is located near. 1 F2013abn 3 Reinforced concrete is a composite material, and the average density is considered to be 150 lb/ft3. The user should use other appropriate load combinations if roof live load is treated separately, or if other types of loads are present. monolithic slab and all wood sill plates shall be anchored to the foundation with anchor bolts spaced a maximum of 6 feet (1829 mm) on center. Slab edges might chip off or spall due to traffic when the slab section curls upwards at its edges. h = the slab thickness, inches. Muhammed (2012), tested eight self-compacting concrete slabs. Design of composite slab, slab capacity and long term deflection calculation need to be car ried out by a qualified structural engineer. 2 350mm thick concrete slab (584+0. 0) we constructed different. Specifications For basic calculations, main input data and other information, like description. A "Span-to-depth calculator" tool is also available that calculates a slab depth that satisfies deflection criteria based on suitable L/d rules from the design code. wconcrete - 145 pcf n = Es/Ec - 9 Rbe is the exterior web crippling capacity based on 2. 8:45 am – 9:30 am Session 2: Basic Load Rating Calculations 9:30 am – 9:45 am Break 9:45 am – 11:45 am Session 3: Example – Load Rating Concrete Slab Bridge Load Rating Seminar 2 11:45 am – 12:00 pm Questions 12:00 pm – 1:00 pm Lunch 1:00 pm – 2:30 pm Session 4: Example – Load Rating Steel Beam Bridges 2:30 pm – 2:45 pm Break. 876 = Conversion constant. Click the button to calculate the volume of concrete and man-hours (not including mixing) needed for this job. (60 cm) diameter plate to attain proper interface conditions. hanging slab that produces a large moment or when there is a slab opening in the back-span that limits its capacity. to 39-3/8 in. The load is an average value for a typical office space with desks, filing cabinets, aisles, etc. frame or slab 1. and 80 lbs. Reinforcing schedules for a mixing and loading pad floor slab on grade with one layer of reinforcing are shown in Tables 5. RAPT will design the following floor systems:- Flat Slab/Flat Plate. 0 psf 7/8" Stucco = 10. The slab load capacity was determined based on the above mentioned approach included in EC2 (2006). ANALYSIS OF COMPOSITE CONCRETE SLAB ON METAL DECK Assignment #7 Select a Vulcraft composite deck to support 150 psf service live load on a 10 ft clear span. For calculating self load for slab we have require self weight of concrete that is 2500 kg/m3 for RCC slab and self weight of Steel that is approx 8000 kg/m3. Beam Behaviour Before discussing the moment capacity calculation, let us review the behavior of a reinforced concrete simple beam as the load on the beam increases from zero to the magnitude that would cause failure. E c is the concrete elastic modulus, psi f t ' is the tensile strength of the concrete = 7. Materials and solutions are chosen depending on the properties of the elements and their damage. where is the modulus of elasticity of concrete in kg/cm (3 10), is the thermal coefficient of concrete per C (1 10) is the temperature difference between the top and bottom of the slab, and are the coefficient based on in the desired direction and right angle to the desired direction, is the Poisson's ration (0. 15), is the radius of the contact area and is the radius of the relative stiffness. wconcrete - 145 pcf n = Es/Ec - 9 Rbe is the exterior web crippling capacity based on 2. Floor capacity depends on the thickness of the concrete, but that's not the end of the story. 120 Adjustable Column Formwork Systems Outdoor High Bearing Capacity. This is followed by a simplified introduction to structural membrane approach applied to flat slabs. Flat slabs with drop panel: Flat slab thickness at its column supports with column capitals or drop panels to increase strength and moment-resisting capacity. 7 in2 and 52. When placing a new concrete slab: 1. Yield Line Theory 2. Axial Load Capacity While assessing the axial load carrying capacity of the wall panels a minimum eccentricity causing out of plane bending is accounted for. Jaw Capacity Paver Slab Mover: 10 ft. 83 m 3 of stone aggregate. The inherent ability of PT (post-tensioning) to balance a portion of this load allows the design to work with a thinner concrete section compared to a conventional podium slab. 4 Tests on Prestressed Concrete Railway Slabs tain pretentioned prestressed bridge slabs and similar slabs of conventional reinforced concrete. That is, the concentrated post or wheel load is assumed to be well away from a "free" slab edge or corner. The distance between the centroid of the tension bottom chord and the centroid of the concrete compressive stress block, d e, is computed using a concrete stress of 0. The subject of this post is the design of one way spanning concrete slabs to BS EN 1992-1-1 – Eurocode 2: Design of Concrete Structures – Part 1-1: General Rules for Buildings. 1) self weight of column. Non-prismatic concrete members with multiple concrete layers and voids can be defined using a series of trapezoidal and circular concrete shapes to define basically any concrete cross-section and elevation. concrete deck, built in 1969. Superior loading – Exceptional engineering and the latest technology ensure our precast double tee slabs and beams provide impressive load capacity and strength. The calculated forces and geometry allow the calculation of the internal energy dissipated within the slab, which allows thecalculation of the load capacity of the slab. intensity, location and extent) is included. FLOORS WITH THIN SLABS OR NON-REINFORCED SLABS Reinforcement becomes necessary (to inrease the rigidness of the plane and the load-bearing capacity) in floors which have only a thin layer or low resistance of material above the. frame or slab 1. The original theory and equations by H. Concrete Slab and Metal Deck The concrete slab cantilever can be designed according. I have a concrete slab already poured, reinforced, etc. First we calculate weight of concrete in slab. ; Radnić, J. An additional load from the increased depth of concrete arising from the deflection of the sheeting. t = determined and input from Figure 7b above. What is the weight bearing capacity per square yard of a 4" monolithic concrete floor slab poured with 3000 psi concrete in 50' x 50' squares, reinforced with 6" x 6" x 10" steel wire mesh, laid ov. 3 Live Load Posting Truck Impact Capacity - 1. Make use of this online concrete slab volume calculator by simply entering the width, length, and thickness of your pour, to estimate the number of cubic yards or cubic feet of concrete slab that will be required for filling in a construction. large extent on a calculation of the enhanced load capacity of concrete slabs at high deflections due to their membrane strength, which had been published by Hayes [5] in 1968. Calculate, comment, correct - the desktop calculator for your Windows PC ! schoettler CalcTape is a revolutionary new kind of pocket calculator. Instead of using a concrete calculator to figure your cubic yardage, you can do the math yourself with this formula: pi X r^2 X h - This will give you the volume in cubic inches which we'll convert to cubic feet then to cubic yards. Just remember to add some extra concrete to your total order because running short is not an option. - Incorrect placement can lead to serious concrete structural failures. For a joint with a minimum load transfer capacity of 15%, the capacity increases to 4λM un at a distance of 1/λ. It is a five-span reinforced concrete bridge with a continuous slab on supports made out of rows of columns. Axle Load = 16. 83% for small and large opening respectively, while CFRP increased the load capacity by 46. superimposed live load capacity of 130 psf for t= 2 inches. The type of loads (compression, bending, shear, etc. A reinforced concrete slab is a broad, flat plate, usually horizontal, with top and bottom surfaces parallel or nearly so. Density *Area. calculate the ultimate load capacity of the slab and also the safe permissible live load if M20 grade. That is, the concentrated post or wheel load is assumed to be well away from a "free" slab edge or corner. Slab L = t = ft. The minimal load behavior of the prestressed concrete skew hollow slab was got. The formula to calculate the volume of concrete that you need to order is this, 2. Use the slab calculator to figure the concrete needed for the porch surface. 4- We just want to know the theoretical capacity of the slab not actually otherwise we may need to do a plate load test which is destructive in nature. Since the strength of concrete continues to increase over time, a standard time period for concrete strength measurement is necessary. View more types of concrete beams: Columns. 1) self weight of column. For IS 456:2000, the factor of safety is 1. 5 psf Roof Framing = 3. Increasing the total weight on the floor to 4,480 pounds, however, results in a live load of 40 psf, which is beyond the floor's load capacity. Strengthening measures are discussed and recommended. A short load concrete delivery is best for small residential and commercial projects that require small quantities of concrete. Steel-reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior p. , concrete fatigue characteristics developed from simple beams in the laboratory to not translate well to full size slabs under field conditions. Voided concrete slabs means greatly reduced cost for concrete and steel as well as a large reduction in the cost and environmental impact from their production and transport to the job site. First, a total of 16 isolated spread concrete foundation slabs with the width-to-height ratio varied from 1. Johansen in the 1940s. 6% over CB-2. Cantilever “one-to-three”. Professional Raft Slab Formwork , Waffle Slab Formwork Easy Assembly. A simple compressive membrane load capacity estimate for laterally restrained reinforced concrete one-way slabs is developed for field use. A 4 inch slump (the. Step-4 Determination of factored moment: Moments for beams and one way slab Factored moment coefficient found in ACI Code section 8. Individual products can be designed to satisfy unusual and heavy load conditions. 5sqft x 50 psf or 975 lbs C= 21 sqft x 50 psf or 1050 lbs D= 19. Knowing the load rating of the platform and the column spacing of the platform are two critical metrics. 5—Formwork adequacy Chapter 5—Construction examples, p. 0 x 10 6 pounds per square inch) 257. A reinforced concrete slab with an interior cage is more than four times stronger than a slab with a single horizontal curtain. A Floor System Example. Details for a Reinforced Concrete Slab Bridge. Design Of Reinforced Concrete Structures ii Two-Way Slabs 1 1. 125 x 1 x 2400 = 300 kg which is equivalent to 3 kN. The "Slab on Grade" worksheet assumes a structurally unreinforced slab, ACI-360"Type B", reinforced only for shrinkage and temperature. The numerical model is extended with two material related models in Chapter 4. 5 EQUIVALENT STRIP METHOD (S4. intensity, location and extent) is included. However, the midspan deflection estimates exhibit large variability. - the security margin compensates any calculation mistake due to minor mistakes in cols rooms dimmensions or storaged goods features. 1) Total factored load q u 193 psf Check the adequacy of slab thickness for beam action (one-way shear) ACI 318-14 (22. 4 shows the thickness of concrete needed for various axle loads. That means if years from now your tenant or new warehouse owner would like to build an office structure inside the building on the slab, they likely will not need to excavate the concrete and pour new. 120 Adjustable Column Formwork Systems Outdoor High Bearing Capacity. Concrete with a high percentage of aggregate has a 10-percent lower specific heat capacity at about 0. Any Air Conditioning & Heating system not only consumes vast amounts of a home’s total energy budget, but also impacts the comfort and well-being of the occupants more than any other system in a house. The section of ductwork that is rusted out that needs to be replaced is under a concrete slab that is inexcessinble. Calculate volumes for concrete slabs, walls, footers, columns, steps, curbs and gutters. 5 psf 1/2" Drywall = 2. SERVICE LOAD: The expected unfactored load to a foundation unit. Factor of Safety. Reading down the table, you see that the code calls for a 12-inch-wide footing under a two-story wood-frame house in 2,500-psf-bearing soil. concrete and modelling of the slab—ground interaction. We have seen situations where a 6" thick slab was in place, but the capacity was rated at just 10,000 pounds due to the proximity of the water table to the surface. This free concrete calculator estimates the amount of concrete necessary for a project, and can account for different shapes and amounts of concrete. At Neutral Axis – No Tension/Compression. Time schedule and cash flow Excel Sheet. 1, determine the unit dead load for the region that has this construction. The slab is constructed on well compacted granular fill, crushed stone or marl. The benefit of axial compression from the self-weight of the top slab and walls is not included in the analysis. INSTA-FOOTING STEEL PLATE DESCRIPTION The Insta-Footing plates are manufactured from ½-inch thick A36 carbon steel with a minimum yield strength of 36 KSI. It also matters how much the soil underneath the slab will compress. Fracture Location on a Slab Since the force uplifting the concrete must overcome the concrete mass, or, dead load of the concrete, we must know the Rupture location from the point of uplift (Length) and slab thickness to compute the uplift force resistance capacity of the concrete. WHAT is Curling? Curling is the distortion of a slab into a curved shape by upward or downward bending of the edges. Concrete Slab Design ProcedureDesign of Continuous Slab Basics of Reinforced Concrete Slab Design Slabs are generally designed on the assumption that they consists of a number of beams of breadth ‘one meter’. Concrete compressive strength (fc′) = 3 ksi. So, we can calculate the slab load to be around 6 to 7 kN per square meter. Let's find out the capacity of slab. Load-deflection behaviour of simply supported RC skew slabs upto cracking load The load deflection behaviour of the reinforced concrete slab can be calculated using elastic skew plate theory. 08-28-2011, 10:51 PM #18. symmetric reinforcement amount calculated for required load capacity (i. The limiting factor that you need to consider is the strength and compaction of what's under the concrete. The purpose of the study is to gain more on the static and knowledge dynamic behaviour of the slabs and to use that knowledge in the assessment of the load. 11 cubic yards. The given concrete slab calculator is a perfect tool to estimate the amount of materials needed, in particular, it can be used to calculate: the quantity of construction materials like gravel chippings, sand, cement, and required for the mortar; volume of the concrete needed for the foundation plate; quantity of wooden boards to build a formwork;. In order to determine the load-carrying capacity of your existing roof slab you are going to need to determine several more items, such as: 1) Concrete compressive strength in Pounds per Square Inch (PSI) as determined by the Windsor Probe method. Concrete (ACI 318-14) and Commentary (ACI 318R-14)5 offers Eq. 7 kg per cubic metre weight of concrete. Slab Load Calculation: Let, Assume the slab has a thickness of 125 mm. 4 shows the thickness of concrete needed for various axle loads. T (in) S (ft) 7 ½" 5'-7". Yet this method needed to be safe and be able to deliver realistic results. distribution and assessing the load capacity for possible yield line patterns) or elastic finite element analysis (which results in peaky moments above columns and needs experience to perform redistribution) are not considered. Find the dead load and the live load per square meter of the slab. Calculate V u at a distance d from the face of support 3. Unless it is demonstrated that equivalent restraint is provided by reinforced concrete beams within slabs on grade or reinforced concrete slabs on grade, ties shall be capable of carrying, in tension or compression, a force equal to the lesser of the product of the larger footing design gravity load times the seismic coefficient, S DS, divided. Estimate any other loads (e. Concrete slab; deck; shear panel - shear loads only; Volumes: Axial, shear and bending loads for all three dimensions; In these calculator we can calculate the following parameters :-1. 5 EQUIVALENT STRIP METHOD (S4. Jaw Capacity Paver Slab Mover: 10 ft. 0 ps Insulation = 1. This calculator will compute the acceptable Allied galvanized steel tubing product size based on length and load criteria. 4 m) using a grooving tool • Allow concrete to stiffen slightly, waiting until all water has. Blade and 1. Calculation of Moment Capacity of the column for balanced failure. Floor capacity depends on the thickness of the concrete as well as the compression rate of the soil underneath the slab. The amount of concrete you require will display in cubic metres in the blue box. 4 mm) deep control joints into the slab every 6' - 8' (1. In this type of construction, the concrete flange of the composite beam is formed by infilling the voids in the hollow core slabs with in-situ concrete over a limited strip width. These systems. 5 psf Roof Framing = 3. Bridge deck analysis. Title: Microsoft Word - h_slabs. Commonly, concrete slabs are between 4 and 20 inches thick and are used for a purpose of floor and ceiling construction. Loans are subject to cred. The load is an average value for a typical office space with desks, filing cabinets, aisles, etc. Concrete compressive strength (fc′) = 3 ksi. Calculate the effective depth of the slab and calculate the concrete shear strength of the concrete slab. The only way to specifically calculate the load capacity of concrete is to have a licensed structural engineer process the formulas and consult a myriad of. Knowing the load rating of the platform and the column spacing of the platform are two critical metrics. the contractor wants to use sand light weight concrete (gamma=125 pcf) all other factors remain the same. 3) calculate slab load per square metre. Self-weight of the walls is modeled as an axial distributed load acting in the negative y-direction. Durability. design of pt slab on grade as per us code: 29: seismic design of special moment resisting frame as per aci: 30: shear wall design as per aci: 31: tilt - up panel design as per aci: 32: concrete slab capacity as per aci: 33: bolt anchorage to concrete as per aci: 34: design of concrete beam as per aci: 35: design of concrete deep beam as per aci: 36. Yield Line Theory 2. Concluding remarks. ONE WAY AND TWO WAY SLAB DESIGN PROGRAMME. With section enlargement slabs can be enlarged to increase their load-carrying capacity or stiffness. from the combination of EPS300, concrete and steel. Summary of Bill of Quantities (Civil Works) Bar Bending Schedule. Professional Raft Slab Formwork , Waffle Slab Formwork Easy Assembly. Of bars and their dimensions in the one-meter span of the slab in a shorter direction. For a simple 2x4 wood wall, I think you would be fine if the concrete was cured properly and is on halfway decent ground. RAPT will design the following floor systems:- Flat Slab/Flat Plate. For calculating self load for slab we have require self weight of concrete that is 2500 kg/m3 for RCC slab and self weight of Steel that is approx 8000 kg/m3. The section of ductwork that is rusted out that needs to be replaced is under a concrete slab that is inexcessinble. The proposed approach is compared with other theoretical methods and a numerical model of horizontally unrestrained concrete slabs presented by different authors. The average capacity of most fuel tankers ranges from 35 m3 to 50 m3. Given the material properties (Young's modulus E , yield stress s y , proportional limit s pl ) and the column geometry ( effective length L eff and radius of gyration r ), this calculator will. The original theory and equations by H. A reinforced concrete slab is a broad, flat plate, usually horizontal, with top and bottom surfaces parallel or nearly so. Concrete Step Calculator Square Column Calculator Round Column Calculator *calculator disclaimer – the key to an accurate measurement is accurate grading across the entire formwork, high’s and low’s can vary the amount of material needed drastically. This totals. The tube steel capacity is calculated by using the formula S=M/Fy, where M is expressed point load format M=PL/4. This eliminates defects in the. 6 Horizontal movements seen from the top surface of the slab. A computer program is written using Matlab to formulate the problem and perform the structural analysis and design of those slabs by the direct design method. Calculate Structural compression capacity of 1500mm diameter concerete (C40 Grade) pile What % of Piles to be tested for Static Test, Dynamic Test, Integrity Test and Sonic Test Describe initial load test of piles. The concrete slab thickness is determined based on estimated wheel and axle loadings, and soil subgrade design factors. The calculator will then tell you the number of bags you need based on the different size of bags we carry. to increase the load carrying capacity, punching shear strength and ductility of flat slabs. Now, If we consider the Finishing load to be 1 kN per meter and superimposed live load to be 2 kN per meter. The Quasi-Coulomb Criterion is taken as the strength criterion of concrete, according to plastic limit theory, and the calculation equation of punching shear limit bearing capacity of unbounded prestressed concrete slab is derived through the establishment of virtual work equation. RC Beam - Bending Moment Capacity calculation (EC2) Checked By Date Metric Units Spreadsheet CN 16. 5% over CB-1 and an increase in the capacity of 25. Beam-Slab Bridges (Article 4. Slump – Slump is a measure of the consistency of the concrete. A hexagonal slab of side length 4m is simply supported at the edges and it is isotropically reinforced with 12mm diameter bars at 150mm centers both ways, at an average effective depth of 120mm. Slab edges might chip off or spall due to traffic when the slab section curls upwards at its edges. lb/ft 3 w = f' c = psi f y = psi Wire Reinforcement Institute (WRI) Method presents design nomographs for slab thickness determination based on solutions using a discrete element computer model for the concrete slab as a continuum on a Winkler foundation. Any section along the moment slab should not fail in shear, bending, or torsion when the barrier is subjected to the design impact load. A number of blocks were tested and then by knowing the load carrying of capacity of a single unit (Table 1. The intent is to ensure that the concrete face in compression and the concrete face in tension resulting from factored nominal axial and bending loads do not exceed the factored nominal capacity for concrete. It is a five-span reinforced concrete bridge with a continuous slab on supports made out of rows of columns. symmetric reinforcement amount calculated for required load capacity (i. Such important structures as slabs, walls, beams, columns, frames and foundations are made of reinforced concrete. 5 EQUIVALENT STRIP METHOD (S4. Click the button to calculate the volume of concrete and man-hours (not including mixing) needed for this job. Note that the maximum stress quoted is a positive number, and corresponds to the largest stress magnitude in the beam. Shear Cracking Load. First, a total of 16 isolated spread concrete foundation slabs with the width-to-height ratio varied from 1. The limiting factor that you need to consider is the strength and compaction of what's under the concrete. If you have three identical floor slabs separated by rigid props (Figure 3), applying a load to the top slab would cause all three slabs to deflect by the exact same amount. The original theory and equations by H. The failure load of the stone slab was 41. The live load calculator aims to find maximum live load moment under a choice of truck models. 163 cubic meters) of concrete. A reinforced concrete slab with an interior cage is more than four times stronger than a slab with a single horizontal curtain. For example; Your shed is 2. Steel fiber concrete flooring can provide superior resistance to minimize cracks in hardened concrete, as well as maximum resistance to withstand heavy loads, either dynamic or static. “Darmstadt Concrete” (Annual journal on Concrete and Concrete Structures) - Enclosure B3. Stress distribution in the concrete varies – depends on magnitude of the applied load. wconcrete - 145 pcf n = Es/Ec - 9 Rbe is the exterior web crippling capacity based on 2. Deep ribs, the concrete and steel quantities are relative low Expensive formwork expected. Further safety may be obtained by reducing allowable extreme fiber stress to a smaller percentage of the concrete flexural strength. Weight Load and 19-3/8 in. 163 cubic meters) of concrete. Let's find out the capacity of the slab! Step 1 - Find out the no. It can reach the function of feeding, blending, mixing and pumping First the pump gets into the mixing system, after that it enters into the pumping system. 0 psf Total = 16. This analysis includes : - the classification of the cross-section, - the calculation of bending resistance, - the calculation of shear resistance, - the calculation of longitudinal shear resistance of the slab,. the contractor wants to use sand light weight concrete (gamma=125 pcf) all other factors remain the same. Data on concrete pipe, which have been removed from service and tested, indicate an increase in concrete strength and an increase in load carrying capacity of 10 to 40 percent. This base concrete layer needs to be cured for it attains its expected strength. concrete flexure design M u = maximum moment from factored loads for LRFD beam design P = name for axial force vector P dowels = nominal capacity of dowels from concrete column to footing in concrete design P D = dead load axial force P L = live load axial force P n = nominal column or bearing load capacity in concrete design P u = factored. 9 or 670,320 BTU more for a 35-degree F rise in temperature. A typical axial deflection curve for an unpreloaded TIMKEN single-row angular contact bearing is shown in above figure, as curve A. About OnlineCalculators Online calculators and converters have been developed to make calculations easy, these calculators are great tools for mathematical, algebraic, numbers, engineering, physics problems. Often those slabs have steel reinforcement. [Note: SEE Fig. The Platform is 46' L X 7'10" W. Concrete Slab and Metal Deck The concrete slab cantilever can be designed according. Here are some of the significant findings: Relatively thin concrete slabs do not allow the placement of anchor reinforcement to drag the load down into a larger mass of concrete as shown in RD. A good rule of thumb is take your calculation and add 4% to 10% to the total to account for waste, spillage, over-excavation, settlement, spreading of forms, loss of entrained air or any other changes in volume. About OnlineCalculators Online calculators and converters have been developed to make calculations easy, these calculators are great tools for mathematical, algebraic, numbers, engineering, physics problems. The distance between the centroid of the tension bottom chord and the centroid of the concrete compressive stress block, d e, is computed using a concrete stress of 0. this stage the SFRC slab can still maintain its slab action and the load can be increased until ultimate failure occurs. Ready-mixed concrete is sold by volume measured in cubic yards. Ready Mix Concrete Dispatch: (800) 834-7557 Rock and Sand Dispatch: (800) 232-3695. Maximum load bearing capacity curves are presented for each slab profile; Slab fire resistance - REI60. Slab Load Calculation: Let, Assume the slab has a thickness of 125 mm. In order to determine the load-carrying capacity of your existing roof slab you are going to need to determine several more items, such as: 1) Concrete compressive strength in Pounds per Square Inch (PSI) as determined by the Windsor Probe method. hmin = (inner perimeter of slab panel)/180 ≥ 90 mm. concrete and modelling of the slab—ground interaction. 4 mm) deep control joints into the slab every 6' - 8' (1. Axle Load = 16. The KORE Passive Slab is combined with our KORE Floor Insulation product. Suitable for heavily loaded span. 0 long and you want the concrete to be 100mm thick. Step 3 - Using the IS 456 page 90 formula, calculate the area of steel present in tension and the thickness of slab and thereafter find the moment of resistance of slab. When concrete voids are combined with post-tensioning, both concrete and post-tensioning quantities are significantly reduced. RC Beam - Bending Moment Capacity calculation (EC2) Checked By Date Metric Units Spreadsheet CN 16. Calculate the thickness of the steel wall required. For Slab: Assume the slab has a thickness of 125 mm. Assist with establishing load bearing capacity in suspended slabs. Combined Strap Footing Design. Compact the sub-soil. Structural reinforcement is typically placed in the bottom portion of the slab thickness to increase the slab's load capacity. The experiment was followed by a parametric study of total load capacity calculation with nonlinear analysis which is supplemented by calculations based on existing design model code. hanging slab that produces a large moment or when there is a slab opening in the back-span that limits its capacity. 120 Adjustable Column Formwork Systems Outdoor High Bearing Capacity. from the combination of EPS300, concrete and steel. One and Two Way Slab Quantity. Concrete Reinforcement. Failure of concrete slab in vicinity of container corner castings. 5 35 55 75* 100* Allowable Tension/Compression Load Limit Based on Shaft Torque Rating † (kip) 55 70 110 150* 200* Tension/Compression Capacity Limit Based on Shaft Torque Rating ** (kip) 5,500 7,000 11,000 16,000 23,000 Torque Rating (ft-lb). To prevent …Continue reading. T (in) S (ft) 7 ½" 5'-7". Figure 3 shows the calculated cumulative fatigue damage at failure (50% slabs cracked) for full scale slabs tested under. To Download Your Free Concrete Calculator - right click - save as. It's also important to note that the density of concrete will differ depending on the type of concrete you are using. Design Of Reinforced Concrete Structures ii Two-Way Slabs 1 1. 0 kN/m³ when the concrete is unhardened. 2 350mm thick concrete slab (584+0. 5000 PSI) shall be in 4 or 8 foot widths and shall meet PCI standards and tolerances, 2" min. m finishing load is in the range of (0. D SV NAGARJUNA REDDY 2 Years ago. Including drainage, structural analysis, foundations, concrete and flexible paving, structural concrete design, marine design and pile design spreadsheets. o Maximum concrete strain in compression is limited to 0. Beam Behaviour Before discussing the moment capacity calculation, let us review the behavior of a reinforced concrete simple beam as the load on the beam increases from zero to the magnitude that would cause failure. Loans are subject to cred. The length within which the. 5 psf 1/2" Plywood Panel = 1. Just remember to add some extra concrete to your total order because running short is not an option. 3) weight of slab per sq. design of reinforced concrete waffle slabs is so ught using the simple genetic algorithm. Slab Load Calculation: Let, Assume the slab has a thickness of 125 mm. Floors are classified based on the intended use of the floor—see the table below that was adapted from ACI 302. Calculate volumes for concrete slabs, walls, footers, columns, steps, curbs and gutters. 0 Hyp • Check for bending6 o Plane sections remain plane. The influence of the shear forces is usually only critical for concentrated forces and supports (punching). Suitable for heavily loaded span. 60 psi WS = MR/FS Slab Stress/1000 lb. So, the Self-weight of each square meter of the slab would be = 0. 85f’cb) Step 2: Calculate the moment capacity of the continuously-reinforced. 4 Tests on Prestressed Concrete Railway Slabs tain pretentioned prestressed bridge slabs and similar slabs of conventional reinforced concrete.