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5. 9. However main reinforcement bar and distribution bar in transverse direction. The slab is propped at the centre during construction stage. Do not use the full dead load deflection due to the full slab weight (initial and final). 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. 2. Beam and frame load calculations: (1) Terrace level: Floor beams: From slab. 9 kN/m2) Required Deflection of the panel at midspan for the following load combination 1*DL + 1*LL Aspect ratio γ = 30/26. LOAD DISTRIBUTION IN SLAB 16. 1) are the same. • This slab has in effect been designed as a one-way slab spanning in the y-direction and supported by shallow heavily stressed slab strips on the x-direction column lines. 4 Nov 2018 Shown detailed Load Calculation from Slab to Beam for different type of slabs in a Floor. on the thickness of your slab as it will depend upon the load that will be placed on the slab. While cracks in a slab may not seem like a big deal, the smallest crack represents a large amount of downward pressure that may be crushing pipework beneath Calculations of Slab Thickness and Dead Load & live load for building - Free download as PDF File (. 0 psf Insulation = 2. L = 19 psf Total Load = 35 psf EXTERNAL WALL Dead Load 2x stud wall = 1. Main steel is only provided parallel to span. Load per area. fs = allowable working stress of the reinforcement (psi). LECTURE3: dead load calculation. 0 psf 7/8" Stucco = 10. Shear Cracking Load. The concentrated wheel load of a vehicle on a garage slab or floor should be specific applications, the calculation of MWFRS and C&C wind loads is implicit. 75 kN/m 2 to 1. 1 Simply supported square slab e slab with span L subjected to uniform load p as shown in Fig. The 1. This states that “Openings of any size shall be permitted in the slab system is shown by analysis that all strength and serviceability requirements, including the limits on deflections, are satisfied”. The original theory and equations To investigate and compare the effect of Temperature load on RCC flat slab and conventional slab with different thickness. Load capacity of simply supported concrete slabs. The 2 in the denominator is not a safety factor. 1. 60 x 1 =0. 4. 5 psf 1/2" Plywood Panel = 1. Calculation of Building Loads. However, in cases where the reinforcement appears to be heavy, the weights of materials should be computed separately to Example 3. Calculate the three critical stresses for 9 inch thick slabs. nt distribution, in a possible equilibrium system for the panel, (a) Hillerborg’s suggestion (b) Saether’s method Fig. txt) or read online for free. It can also be called the load periphery. 11. Calculate the super-imposed loads (dead weight of storage tank and liquid in the same) on the concrete slabs; 2. Sustained load combination: 1. Calculations of Slab Thickness and Dead Load & live load for building Calculations of Slab Thickness and Dead Load & live load for building Online Concrete Slab on Grade Analysis Calculator For Slab Subjected to Interior Concentrated Post or Wheel Loading Assuming Slab is Reinforced for Shrinkage and Temperature Only. To assist in the evaluation of slabs-on-grade, this module also provides a calculation of the distance that the closest load may be without affecting the calculated slab capacity. The curling stresses are obtained from the Curling Stress Calculation Example. 2. Re: Calculating the Load Bearing Capacity of Concrete Floors 12/04/2009 7:28 AM There isn't any one formula, the selection of which one depends on how the slab is supported, where the rebar is placed, the type and placement of loads, etc. The vertical loads are the dead and live load. During construction when steel is to be provided for a length greater than 12m, the bars are lapped to maintain continuity in the reinforced structures. Beams cross section to be considered in calculating Ib1 and Ib2 are shown below. 230 mm x 450 mm excluding slab. The above load values allow for construction. 4D+1. When a slab is supported on all four sides and the ratio of long span to short span is equal or greater than two, it will be considered as one way slab. A Floor System Example. A three-phase loading regime was used to investigate thermal gradient effects at service and ultimate load conditions. 15, M20 concrete is used] t RC slab behave primarily as flexural members with the design similar to that for beams. Jun 15, 2012 · That calculation you have there will give you the UDL of the beams own weight. As we think that calculating steel quantity for the slab is a too difficult task, it required good skills in civil engineering. For IS 456:2000, the factor of safety should be 1. The experiment was followed by a parametric study of total load capacity calculation with  Step 2 - find out the grade of concrete. Of steel bars and type of concrete. EFFECTS OF SLAB SIZE ON AIRPORT PAVEMENT PERFORMANCE 5. - 1 response - Report Abuse In the above calculation of RCC slab weight further additional load due to floor finishes are to be included generally for stone/cement floorings 0. M. the model consists of concrete wall panels and concrete floor slabs. I am estimating that the The ground floor/basement level will be a 4" re-enforced slab with footings over 2-4" of insulation, with ICF walls. slab is an important part of the dead load of the structure. 6L. In the example, the web at the support is 22 in. 12. 42 KW Load TNEB slab rates for Residential services with free 100 units: Subgrade reaction modulus is the ratio of soil pressure to deflection. e. , edge beam dimensions = 14 in. The analysis and design follow the equivalent frame analysis method of the ACI code, which considers a one-bay wide strip of the floor system as a continuous frame. 7L. July 2018 . we assume each meter of the beam has dimensions of 230 mm x 450 mm excluding slab thickness. Sponsored Links. The loads are calculated per unit area (load/m 2). Load capacities of simply supported concrete slabs: Imposed loads varies from approximately 1. 70 psi Concrete Flexural Strength F = 600. The user should use other appropriate load combinations if roof live load is treated separately, or if other types of loads are present. Download Thickness of Slab – 150 mm ; One Way Slab Bar Bending Schedule Calculation. Step v) For slab-on-grade foundation portion, calculate its foundation heating load using the CSA F280-12 “SlabOnGradeHLR. Earthquake Load Calculation (base shear method) The 3-story standard office building is located in Los Angeles situated on stiff soil. Floor finish load Dead Load: Self weight of the slab=  23 Jan 2019 While doing calculations, we assume the self weight of columns is between 10 to 15 kN per floor. A flat plate system will be Oct 19, 2017 · Before calculating the quantity of steel in one way slab it is very important to clear the basic concepts. 1. but i am sharing with you an excel sheet, which will make slab steel quantity calculation too easy for anyone who wants to know the exact quantity of steel required for his/her slab. 5 psf 1/2" Drywall = 2. 3. Comprehensive Design Example for Prestressed Concrete (PSC) Girder Superstructure Bridge Design Step 4 Deck Slab Design Design Step 4. The calculation of One Way Slab Reinforcement Details Design is extremely tedious and time-consuming and after give more time is not 100% sure that design is best or not and also if some minor change comes in design if force to calculate Concrete floor slabs on grade are subjected to a varie ty of loads and loading conditions. Fig. The tributary load on the member is found by concentrating (or Flat Slab Analysis and Design designs beamless concrete slab floors (flat slab or waffle slab) in accordance with ACI 318. ing Organization Name and Address Galaxy Scientific Corporation 10. So part of the load is carried by one set and the remainder by the other. 1: Load transfer in (a) One-way slab, (b) Two-way Slab (Nilson) Fig. [J ap = 1. Envisage load like water and the columns . 0 x 10 6 pounds per square inch) 257. Jun 14, 2015 · Q-2053 Index of Calculation Sheet Page 02 Regulations and Standards Page 03 Formwork Materials Technical Data Page 04 Preliminary Formwork Shape Page 11 Design Data of Formwork Page 12 Check Elements of Formwork Page 13 1- Check Elements Under Slab 1. When calculating haunch for the beam along the phase line, use the dead load deflection from the initial slab weight. Load testing was used to determine if the current load rating of the Route 701 Bridge could be raised. Long Span Composite Slab Systems 64 5. Sep 28, 2017 · In general, if the load from the slab is delivered to the beams in one direction, then the system is one-way. The horizontal loads are the earthquake and the wind loads. 11 Egg Harbor Twp. Calculation of losses can based on a force percentage, user-defined stress values, or on more detailed  Interior columns. 4 t/m³ = 1. The one-way slab steel quantity calculation is done according to its supporting conditions. 005208 m4 Columns: 600 x 600 below ground level Area, A = 0. 5 psf Roof Framing = 3. The superimposed load on the slab is to be 3500 N per square metre. 078 0. The air bag has a capacity of 20 psi in a fully constrained Mar 13, 2019 · The “Slab on Grade” worksheet assumes a structurally unreinforced slab, ACI-360″Type B”, reinforced only for shrinkage and temperature. [Conc Slab, PT Slab] Load Summary 307 [PT Slab ] Tendon Layout 308 [Conc Slab, PT Slab] Reinforcing Layout 309 [Conc Slab, PT Slab] Deflection Summary 310 [Conc Slab, PT Slab] Moment Plan 311 [Conc Slab, PT Slab] Design Strip Key Plan 312 [Conc Slab, PT Slab] Design Strip Design 313 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. Concrete is the normalweight 3000 psi. The slab may be supported by walls or by reinforced concrete beams usually cast monolithically with the slab or by structural steel beams or by columns, or by the ground. How to calculate the thickness of the slab foundation of the house and its The specific type of load of the total weight of the structure affects the concrete below. Dead load = D x 25 kN/m 2 ( Where D is thickness of slab in m) Design of Reinforced Concrete Structures ECIV 3016 LECTURE3: dead load calculation Second Term 2012 Take thickness of slab 26 cm 20 cm block + 6 cm topping slab Calculation of Dead Load Calculate the dead load of a one way ribbed slab of thickness = 23 cm Given: = 2. 2 SUMMARY This is the structural calculation of the post-tensioned ground supported foundation Slab of Sunshine Building. 15 m thick slab the calculation will be as follows- Weight of slab = 0. Load Test Procedure A uniform load configuration was used for the load tests. ACI design factors for calculating shear and moment in slab Limitation. 3 The slab is designed based on 1-foot strips, therefore the live load most be distributed to these strips. FWD loading (a = 5. Trapezoidal formula =W * Lx / 6 [ 3-( Lx/ Ly )2 ] Triangular formula = W * Lx / 3 Rectangular formula = W * Lx / 2 15. In this construction video tutorial, the renowned engineer Sami Ullah shows some simple processes to work out the self weight of RCC slab to make the RCC   The tributary area makes calculation for column size. The design procedure includes determini ng slab thickness based on moving live loads and then checking adequacy of slab thickness for stationary live load. In this case, the value of the concentrated force at each support is equal to the distributed load times half of the span between supports (the other half is handled by the other support). Visit My Articles website:- http://www. 22-25)• These specifications define an effective width of slab for various spans, a live load moment formula for the design of the slab, Aug 08, 2019 · SoilStructure Slab on Grade Software simplifies the calculation of a uniform concrete slab subjected to three loads. uthor(s) Edward Guo 8. 52 m) from the support is 8 in. Wheel Load Design Calculation Details Name: Sample Project Date: 5/1/2014 Location: Buffalo Grove Engineer: Mike McPhee Poisson's Ratio = 0. 5 of IS:456-1978, which states that the load on beams supporting solid spans, spacing in two directions at right angles and supporting uniformly distributed loads. 6. Moving on, the video clears the concept on  6 Aug 2018 Dead load on the slabs was to be discussed in this video. The slab is to be finished with 25 mm thick cement concrete flooring. The original theory and equations by H. centration loads. 1): DC - Dead load, except wearing surfaces & utilities DC 1-placed prior to deck hardening and acting on SAFE can use user-defined reinforcement to compute cracked-slab deflection. Dead load of the slab 2. Structural Beam Deflection, Stress Formula and Calculator: The follow web pages contain engineering design calculators that will determine the amount of deflection and stress a beam of known cross section geometry will deflect under the specified load and distribution. On doing its capacity analysis the raft with p d is the slab thickness, inches . So, we can calculate the slab load to be around 6 to 7 kN per square meter. Assume each (1m) meter of the beam has dimension . x 27 in. Formwork is usually temporary (struck from concrete after curing) or permanent. 5. Second. The slab has to carry a distributed permanent action of 1. 2 Timber beam H20 As Sec. 15m Design Step 5. 2D+1. 36 KW and 0. The structural design is completed by structural engineer of record (SEOR) where he/she utilizes the concept of Beam on Nonlinear Winkler Foundation in order to estimate the pressure of soil as well as shear It can be concluded that the design load (ps) on the bottom slab is the same for dry conditions and for conditions where water levels in the ground are at or below grade. So, we can calculate slab load to be around 6 to 7 kN per square meter. The construction details of the beam slab system used for load testing Rule of thumb: add 1 / 4" to the thickness of your slab for your slab concrete budget. If the composite slab is load prior to the age of 28 days, then the strength of concrete should be estimated though testing concrete whether it is cylinder or cube samples. Three types of load are considered while designing slab: 1. calculations are reflected in the tabulated values of. 2 Load determination-Testing. A manual heat loss calculation for buildings is a good exercise to help understand how heat loss is apportioned. remainder of the slab is cast, due to the added stiffness of the cured slab. 8 Top of Slab Shrinkage and Temperature Reinforcement . Modulus of subgrade reaction in picocurie or megapascals 3. This approach enables not only to determine the total load capacity but also to verify the structure collapse mode. This load acts on the beams as a UDL, this is calculated after assuming Various type of load applied by slab over column. . Step 1 . 18 m2, I = 0. Gravity Load calculations 1. 111 88 liveload Δ= =long term in The ACI code limiting value for the present case is found to be 1/480 times the span, or limit 20 12 0. Department of Transportation the load is constant in every point of the slab Firstly let's suppose that the slab has a thickness of: 100 mm and supports a constant load (permanent: screed, ceramic tiles + temporary: objects, people) of 250 kg/m^2 (2. 5 in Table 3. 36 m2, I = 0. That is, the concentrated post or wheel load is assumed to be well away from a 'free' slab edge or corner. Also, different types of live load which are considered during the design of concrete structures are Figure 13: Determination of Contributing Area for Load Calculation. To investigate and compare the behavior of both structure for the parameters like lateral displacement, inter story drift, axial force, and bending moment. 0054 m4 Mar 11, 2012 · For two way slab, Beam at longer side, shift Trapezoidal area to equivalent rectangular area. Solution Design constants. That is, the concentrated post or wheel load is assumed to be well away from a “free” slab edge or corner. o S5 loading assumptions and calculation o S6 Load plans o S7 Tendon plan. Slabs shall be designed as simple or continuous spans under uniform loads • Section 5. 5) Dead Load (Article 3. Hi, i am currently modelling a precast concrete wall frame. We have integrated Load 700 with TRACE 700 to give you the same look and feel and extended capabilities as TRACE 700. The above equation assumes that the load acting on the slab is unique and no other nearby loads are affecting the calculation. Slabs are classified into 16 types. An interior load condition is assumed for flexural analysis. 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 The short term live load deflection is 125 0. Jun 01, 2018 · Openings in the slab system can be found on Section 8. Chapter 3 – Design Loads for Residential Buildings It should also be noted that the wind load factor of 1. 3. This lap length varies in different RCC structures and generally lies between 30d (d=bar diameter) to 55d depending on seismic load calculation - sheet excel web share 2016-08-26T11:40:00-07:00 5. Analysis and Design Values o S15 Finite Element discretization (mesh plan). Slab thickness = 8 in (203 mm) Ec (modulus of elasticity) = 4. = 3800 ksi. Let’s find out the capacity of the slab! Jan 28, 2018 · We enter a full concrete section into computer, than we make a calculation and then we enter the effects of; cracks due to load, shrinkage and creep. 4D. All the added features (applicable to load design) in TRACE 700 will now be available to Load 700 users. Types of loads on the column 1- Self-weight of SLAB DESIGN Reading Assignment Chapter 9 of Text and, Chapter 13 of ACI318-02 Introduction ACI318 Code provides two design procedures for slab systems: 13. Using the three critical slab locations, what is the total stress (load plus warping) for the 9 inch slab. In general, the design of slab become more simpler because compression reinforcement are often not required and the shear stress are usually low except when there are heavy concentrated load. Dimensions columns: The peripheral dimensions of the beam: Figure: 3. 1) Flat slab and Conventional slab models are prepared. In the design, objects that comprise construction loads after concreting are placed on pallets which are positioned on supporting beams. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design The load test results are also used to determine the dynamic performance of the slab system when subjected to impact loads. for the slab. 3- We know the drawing details of slab-like no. gency Name and Address U. 500 kg/m2 is typical for office, storage space and similar. Self weight of beams. Factor of Safety. Calculate the maximum wall load(in pounds per linear foot) that the edge of a concrete slab-on-grade floor can support by providing the following input1. Jul 12, 2017 · Knowing the load-bearing capacity of your concrete is essential to make sure that what you plan to have supported by the wall or slab will not be too heavy and cause it to crack and break. Assume Size of column = 9″×9″ Inch into mm = 230mm× 230mm. Normally, formwork is designed to support load from fresh concrete (including static pressure), their self weight, live load […] Sep 03, 2011 · Reinforced Concrete Effective span Centre-to-centre distance between supports Longer dimension of a rectangular panel of slab for yield line calculations Modular ratio = Es/Ec Design bending moment per unit width of slab modified to account for axial load Moment per unit width about x-axis Moment per unit width about y-axis Calculate the maximum wall load that the maximum wall load that a concrete slab-on-grade floor can support at a joint or at the center/interior of the slab. All moment-resisting frames are located at the perimeter of the building. That is, the concentrated post or wheel load is assumed to be well away from a "free" slab edge or corner. Example 1. Step 3 - using the IS 456 page 90 formula, calculate the area of steel present in temaion and the thickness of slab and  calculate live load deflection. Factory floor load is 20 kN/m2. From the above fig Length = 6m, Breadth = 5m and thickness/depth of the slab = 0. Number of Required Bars Formula = (Length of slab / spacing) + 1. RAIS) 2500 English Creek Ave. reinforced concrete roof placed on a metal deck that spans 7' between beams. Introduction to LRFD 1-5 Permanent Loads (Article 3. U = 1. floor slabs separated by rigid props (Figure 3), applying a load to the top  The specified jacking stress is converted to load. 5" to 5"-the best solution for both the job quality and your concrete budget is to fix the grade. 0Prestressing The maximum instantaneous deflection due to sustained load combination (diagram below) is 17. ▫ Calculation of   At ground floor, slabs are not provided and the floor will directly rest on ground. This document is conform with 1997 uniform building. I have ran calculations for the model with two different diaphragm configurations for comparison of results. 5 kN/m 2 is considered. Calculation :- height of column = 3 m. used to calculate the rating factor of the bridge. A wall load, A Column or Point load and a Uniform pressure. This modulus is widely used in structural design of mats and slabs. ACI 318-99. Calculate the dead load of the bridge superstructure components for the controlling interior girder. Analysis and Design of Slabs. May 29, 2018 · The last and the main approach to the calculation of load capacity of concrete slab described in the present article is the advanced nonlinear analysis. It deals with depth of foundation, slab perimeter and I believe, soil type. It divides the calculations into two primary steps: 1. The next issue of Precast Solutions will discuss loads applied to underground precast structures during flood conditions where water is above grade. 5 t/m³ = 2. 5 it behaves as one-way slab. M. 1(b) shows two center strips of a rectangular plate with spans l a and l b. 75 kn/m 2 to 1. 0 psf D. In P1 and P2 specimens, shear cracks initiated at stress concentration points where the stress  It is also shown, that the load bearing capacity can be modeled for walls, if a detailed model for the thermal expansion is used, and if the calculation is made in time  Dead loading and live truck loading are imposed on Bridges. – The composite slab shall be designed as a reinforced concrete slab with the steel deck acting as the positive reinforcement. M online free live maximum floor live load capacity is a great engineering tool to help you calculate floor strength use it now. 5 Part 2: Test Protocols and Case Studies. If one side had been longer than other side and ratio was less than two, the load would have been distributed in a trapezoidal fashion as shown in the adjacent image. 4) LL t8 and LL t32 = design truck load, 8 k and 32 k, respectively A one-way reinforced slab may be stronger than a two-way non-reinforced slab, depending on the type of load. 1 References: "Concrete Floor Slabs on Grade Subjected to Heavy Loads" Army Technical Manual TM 5-809-12, Air Force Manual AFM 88-3, Chapter 15 (1987) Feb 21, 2015 · LOAD TRANSFERRED TO BEAM FROM SLAB The load transferred to beam from slab is determined by using triangular, trapezoidal & rectangular formula. A minimum thickness for a non-load bearing slab would be 75mm. Based on the test information the design rational shall be established by: Load factors and combination. etc. Determine the earthquake force on each story in North-South direction. (see ACI sect. Load calculation on column, Beam & Slab: For  7 Dec 2017 In this video, you can learn How to calculate the Dead load (self-weight) of the slab in different forms, 1. Cantilever slab is always one-way. Concrete Floor Slab-on-Grade Design Problem 1 - Required concrete thickness: Design a warehouse floor slab for an interior wall load of 1400 plf, stationary live load of 1200 plf, exterior wall load of 1000 plf and an average daily volume of 25-15 kip forklift trucks per day using 4000 psi concrete and a modulus of subgrade reaction, k = 150 pci. Two edge supported slab is always one-way. The Ohio legal load vehicle of gross weight 30 kip having the truck load designation of OH-2F1 is considered for   9 Aug 2006 Decreased slab thickness or increased load capacity. Designer had given details of raft with #6 @ 6 o. com/ . M Dead Load is the vertical load due to the weight of permanent structural and non‐structural components and attachments of a building such as walls, floors, ceilings, permanent partitions and fixed service equipment etc. , NJ 08234 11. 3 Check the Concrete Stresses at Service Load . , and unfactored live load = 100 psf. 1 used for load and resistant factor design is consistent with traditional wind design practice (ASD and LRFD) and has proven adequate in hurricane-prone environments when buildings are properly designed and constructed. 1 t/m³ Slab: 89,100 lbs. The web thickness at 5 ft (1. Hillerborg’s strip method is the most approachable and used for the lower bound theorem. The girder, slab, haunch, and exterior diaphragm loads are applied to the noncomposite section; the parapets and future wearing surface Slim Slab opens new dimensions for contemporary architecture because it combines low thicknesses with large formats guaranteeing high technical performance a lower load on the floors and an aesthetic quality never seen before! The tiles which can be laid with a minimum joint enhance the rooms with unique effects of visual continuity. Live load of the slab 3. This high loading assumes that the area around the concentrated load is unloaded. From the given data Apr 27, 2012 · I do not have it in front of me but the ASHRAE Fundamentals Handbook has a manual calculation for foundation heat loss that is easy to use. For calculating self load for column we have require self weight of concrete that is 2500 kg/m3 for RCC and self weight of Steel that is approx 8000 kg/m3 Reinforcement steel is generally manufactured for a standard 12m length. S. Example 1: Point Load. For IS 456:2000, the factor of safety is 1. 2 kN/m2) Live load = 40 psf (1. Concrete Slab Maximum Wall Load formula. 1 Direct Design Method (DDM) For slab systems with or without beams loaded only by gravity loads and having a fairly regular layout meeting the following conditions: L1084 – 32 Abingdon Villas Page 40 of 70 Pringuer-James Consulting Engineers Ltd BEAM BB01 STEEL BEAM ANALYSIS & DESIGN (BS5950) In accordance with BS5950-1:2000 incorporating Corrigendum No. 1) self weight of slab. Configuration 1 (Walkout with no slab) How to calculate self weight of column. x 20 in. LL lane = distributed lane load = 0. Press "update" button. WisDOT Bridge Manual. 0 psf Total = 16. Two-way slabs carry load in two directions. 1 Plywood 18mm Page 14 1. In addition to designing the deck for dead and live loads at the strength limit state, the AASHTO-LRFD specifications require checking the deck for vehicular collision with the railing system at the extreme event limit state. Calculation of Floor Load Rating required for heavy machine : View All: Need to cal how much floor load needed to place a 14 tons rolling mill. The lateral loads are independently resisted by shear walls. For Beam at shorter side, Shift Triangular area to equivalent rectangular area. 16 m = 4 kN/m 2 on a horizontal formwork. One way slab is normally designed for gravity load only. 3 (2) NA – can use single load case provided:. • Exercise When calculating vRd,c: 6. From the given data cooling load calculation methods compared to its central role in radiant cooling systems, this dissertation provides improvements for the current cooling load calculation method based on the Heat Balance procedure. ▫ Calculation of Slab Thickness. Explore other calculators related to housing or building, as well as hundreds of other calculators addressing finance, math, fitness, health, and more. As the distribution of forces is calculated according to the rigidity, we get a mistake, right at the beginning of the calculation. RC slab behave primarily as flexural members with the design similar to that for beams. W= dead weight of the slab (psf). Among the strong features of spreadsheets are their instinctive cell-based structure and easy to use capabilities. 5 kN/m2 (153 kg/m2) in domestic buildings to approximately 1 0 kN/m2 (1053 kg/m2) in heavy industrial areas. Machine Foot print is 8 x 12 ft. Apr 25, 2018 · Calculation of Volume of concrete for Slabs: A slab is in the shape of a rectangle, In order to calculate the volume of concrete required for the slab, find out the surface area of the slab and then multiply it with the depth/thickness of slab as shown in fig. As can be seen by the concentrated load requirement, the 2,000 pounds in 6. Therefore, slab load should be computed as approx 6 to 7 kN per square meter. Compressive strength in pounds per square inch or kilo Pascals 2. One-way and two-way slab action carry load in Calculate positive and negative moments in the slab. More detailed explanations and examples of reinforced concrete beam and slab design can be found in my In this article, you will learn about how to calculate steel quantity for the slab. 25 square feet (2 ½ x 2 ½ ft) is a load of 320 PSF. 3 Limits onMaterial Strength Two-Way Concrete Floor Slab with Beams Design and Detailing . Formworks are structures to used to support and hold fresh concrete in place in order to obtain the desired shape prior to setting, curing, and hardening. The panel calulation model configuration for each one is not Apr 27, 2012 · I do not have it in front of me but the ASHRAE Fundamentals Handbook has a manual calculation for foundation heat loss that is easy to use. Slabs, Square Footings, or Walls. pdf), Text File (. Jan 05, 2018 · This video explains how the slab load transfer to beams with tributary area of two way slab and one way slab with an example. c. Longer span (l)/Shorter span (b) ≥ 2. 3000 lb point load over an area of 4. Column A4 Tributary area, A T = 20 x 15 = 300 sq ft Corner column without cantilever slab, Influence area, A Two way restrained slab d=(L/30) to (L/32) c) Load on slab: The load on slab comprises of Dead load, floor finish and live load. To obtained a live load per foot divide the lane load and truck loads by the effective width. The equation of negative yield line for orthotropic reinforced concrete slab under concentrated load is found to be a symmetric and closed curve with determinate shape but indeterminate radius. Use modulus of elasticity, E c. Apr 22, 2019 · Dear all I want to discuss an issue recently encountered at site. h = the slab thickness, inches. These also are the default design load combinations whenever the ACI 318- 08 code is used. Eight large-scale reinforced concrete slab specimens were tested under combined thermal and mechanical load condi- tions. Slabs having supports on less than four sides can be designed as one-way. Getting started: Select a State or Province; afterwards you will then be given a choice of cities, airports or other major locations. Four slab specimens with different types of concrete were fabricated and tested to study the load capacities of positive and negative moment regions of the slabs. However, if the attic is intended for storage, the attic live load (or some portion) should also be considered for the design of other elements in the load path. The calculation of dead load, in case of straight bridges, is simple. Tabulated track load is the full weight of carriage, shelving, decking, track, and media divided by the actual carriage spacing. Live Load = Dead Load Roof cover = 1/2" Plywood Shuttering = 1. The cross section of the profiled sheeting is shown in Fig. FIrst, find number of rods required for main reinforcement and distribution. 287 * 106 psi ( 29,558 MPa) Superimposed dead load = 25 psf ( 1. Conversely, if the load is delivered to the beams and the girders in two directions, then the system is considered two-way. Edge Beams  17 Sep 2019 The slab unit rate system is a simple fully automated system to calculate the connection costs using the per kW rates. Note that rebar must be added in both the tension and compression regions for Jan 09, 2008 · Case 1: Wheel load close to the corner of the slab. 5" x   Load Stress Example Calculations. In this example, the pressure load from the slab is transferred directly to the beams. Apr 14, 2018 · A spreadsheet is a computer application that simulates a paper worksheet where becoming increasingly popular in solving engineering related problems. Floor and Slab Load Testing Accolade Measurement has over 20 years’ expertise in delivering accurate and fast floor and slab load testing . E = the modulus of elasticity for the slab ( typically 4. Calculation Sheet Checked by PU Date 08-08-00 Check the adequacy of the continuous composite profiled deck slab with spans of 3. 0 ps Insulation = 1. x 18 in. The structure of the building is steel special moment frame. 6. , Bldg. Values for the exterior girder have also been included for reference. If slab is supported on all four sides and R = (Shorter side / Longer side) < 0. This assumes you have the job evenly graded to the right depth, and the grade is well compacted. 29 May 2018 concrete slab-on-ground of 120 mm thickness. 3 Dead Load Calculations. • Resilience (ASTM D 4254) and calculation of relative density may be appropriate. If, however, it is actually supported by vertical structures which themselves rest on1 the slab, then the load should be concentrated at the supports. TNEB 100 units free calculation | TNEB current slab rated for Residential (Domestic home service numbers) - For both LA1A 1. An air bag, placed on the top surface of the slab, was used for this purpose, and the load was applied by gradually increasing the pressure in the air bag. 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. 138m³ Feb 01, 2019 · How to Calculate Load on Column Civiconcepts - Bhushan Mahajan Load distribution from slab to beams Load Calculation for G+1 Building Now, assume Finishing load to be 1 kN per meter and superimposed live load to be 2 kN per meter. An innovative steel and concrete composite bridge deck slab using bent bars and epoxy as shear connectors was proposed. Distribution of slab load on supporting beams: 31 May 2017 Three types of load are considered while designing slab: 1. Floor finish load Dead Load: Self weight of the slab= Mass / Weight of the slab i. The design load combinations are as follows. 3 sf needed per above calculation. Thus the classification of slab, defines the load path and the behavior of a slab under applied loads. 75 m apart. If you check your grade and one spot is 4", some spots are 4. 25 = 1. 8 t/m³ = 2. The bearing of the slab on the supporting walls may be taken as 230 mm. Exterior columns without cantilever slabs. Use a 9,000 lb. Design the slab system shown in Figure 1 for an intermediate floor where the story height = 12 ft, column cross-sectional dimensions = 18 in. Concrete - Calculate Cubic Volume - Calculating required concrete volume; Concrete - Properties  Design of Reinforced Concrete Structures ECIV 3016. Load calculation on column, Beam & Slab: For Beam: We adopt the same method of calculations for beam also. Each load case involves calculation of the resulting concrete stress and comparing the resulting stress with the allowable tensile stress in the concrete. It calculates the amount of heating and cooling BTU's needed for the whole house. The connected load  Superimposed Dead Load, SDL = 50 psf for Frame walls, hollow concrete In lieu of detailed calculation for deflections, ACI 318 minimum slab thickness for  of the concrete thickness are reflected in the calculation of deflections of the slab and the supporting beams. 19 Sep 2018 Back-propping of RC slabs during construction is often neglected or gives advice on the methods recommended for back-propping calculations. Also, we’ve aligned calculation engines, file extensions and libraries to enable users of both programs to transfer This free online calculator will calculate maximum length of slab, it is a free civil engineering tool. 00 psi Modulus of Subgrade Reaction k = 100. Unit load calculations Assumed sizes of beam and column sections are: Columns: 500 x 500 at all typical floors Area, A = 0. Case 3: Wheel load at an edge of a slab, but removed from the corner. Volume of Concrete = 0. For uniformly distributed loads of w per Concrete Slab Maximum Wall Load Calculator. Load calculation. ***** For academic consultation on Civil engineering subjects, Thesis The load of slab is dispersed on to the supporting beams in accordance with clause 23. Shear is not controlling at this location. The distribution of deck slab,  Purchasing slightly more concrete than the estimated result can reduce the probability of having insufficient concrete. Reinforced concrete slab thickness of 300 mm. 00 psi Modulus of Elasticity E = 3,602,728. 25 square feet of footing area which is pretty close to 6. 876 = Conversion constant. Floors - Ctr Wall Ld Thickness Calculate the required thickness of a concrete slab-on-grade floor to support a wall load at the center/interior or on a joint. Haque, P. . Thus, an 16 cm normal weight slab would exert a dead load of 25 kN/m 3 x 0. Corner columns with cantilever slabs. A load calculation program based on Manual J, designed to be quick and easy to use. civil engineering formulas list online. Adopt M 15 grade of concrete and mild steel reinforcement. 10. The bars we use in the Tension zone of the slab is called Bent The 'Slab on Grade' worksheet assumes a structurally unreinforced slab, ACI-360'Type B', reinforced only for shrinkage and temperature. 3 sf The 2’-6”x2’6” footing picked above provides 6. 25LL + 1. 2D. 5 N/m^2). 25 m2, I = 0. Each lower column gathers supplementary load from each floor. 0108 m4 Main beams: 300 x 600 at all floors Area, A = 0. Temporary reactions are assumed at the beams to prevent deflections of the beams« and the loads are distributed to these reactions by the slab acting as a continuous beam. 1 Flat slab supported on parallelogram column layout-pan 2 Adding the 780 pounds to the total load yield 15780 and recalculating the footing area per formula above: A=F/P= (15,780 lbs)/(2,500 lbs/sf)=6. ing Organization Report No. Factory space is 10 x 10 m2. (Load Calculations) Page 5 of 6 3. 3 ASSESSMENT OF DEAD LOAD The American Concrete Institute. 5m Variable load 4kN/mm2 Slab thickness 175mm Fck 25N/mm2 fyk 500N/mm2 Cover to the reinforcements 25mm Office building Slab loading Suppose, finishing load is 1 kN per meter and superimposed live load is 2 kN per meter. In the concentrated load tests, a point load was simulated by TRANSPORTATION RESEARCH RECORD 1288 Top Slab Plan View FIGURE 2 Layout of pressure cells. Table 4. After that same method as one way slab example. The Radiant Time Series method is not appropriate for radiant system applications. Attic loads may be included in the floor live load, but a 10 psf attic load is typically used only to size ceiling joists adequately for access purposes. In the end, after calculating the entire load on a column, please do not forget to add in the factor of safety. A flat plate system will be Two-Way Joist Concrete Slab Floor (Waffle Slab) System Analysis and Design Design the concrete floor slab system shown below for an intermediate floor with partition weight of 50 psf, and unfactored live load of 100 psf. 9 inches). A1. DEAD LOAD PER UNIT AREA 2. 4. 23 x 0. Excel, for example, is a powerful spreadsheet with VBA robust programming (the distance between the free ends of the slab that can move due to shrinkage contraction or thermal expansion). The tributary area is a loaded area that contributes to the load on the member supporting that area, ex. With our extensive range of load application equipment , we can load test your structure anywhere from a few kilograms to hundreds of tonnes. The loads on building, may be a residential or any type of structure, are mainly classified into vertical and horizontal loads. Dr. 18E1-8. At around 6400# all up tank weight when full, that is a load of 174-239 LB per SQ/FT, depending on how much the lower insulation distributes the load over the floor. 6mm at the tip of the overhangs. Length (l). civilclick. Further safety may be obtained by reducing allowable extreme fiber stress to a smaller percentage of the concrete flexural strength. Number of Main Bars = Ly / spacing + 1 = (4000/150) + 1 = 27 nos tions of the beams in simple-span bcam-and-slab bridges of the usual proportions has been developed. April 2000 6. Allowable extreme fiber stress in tension (in psi or kPa) (Assumed to be 1/2 flexural strength) Thickness of slab (in inches or mm) Modulus of subgrade reaction (in pci or MPa/m) Modulus of elasticity (in psi or kPa) and intersecting each other. Therefore, the ultimate load will not be overvalued. 1-1. The load on the slab is carried by the short span in one direction. (559 mm) thick. This problem is designed to demonstrate how to check the ability of a composite slab to carry a. Factor of Safety: In the end, after computing the total load on a column, include it in the factor of safety. Calculating the subtotal for the floor, ceiling, walls, footing, and slab: Solution for #5: The total dead load of the structure can be found by adding the two above subtotals: 347,233 lbs Solution for #6: To determine if the dead load (structure weight) from the house is sufficient to I need to calculate the vertical load capacity of a 5"-thk. 24 Dec 2017 Capacity Calculation. CRITICALLY LOADED FRAME 17. The "Slab on Grade" worksheet assumes a structurally unreinforced slab, ACI-360"Type B", reinforced only for shrinkage and temperature. For this option, select Run > Reinforcing Option for Cracking Analysis, then select User Specified Rebars in Reinforcement Source. the area from the center between two beams to the center of the next two beams for the full span is the load on the center beam. In the wheel load tests, the rear axle of the test truck (Figure 3) was centered over each of the positions indicated in the figure, and then the instruments were read. The soil below the foundation is expansive clay with properties determined by the soil engineer. 500 480 × Δ= = in based on the sum of the long-time delfectin due to sustained load and the immediate deflection due to live load. 3) live load. 9 May 2013 The calculator computes required steel area and selects bars (or spacing) for except that column weight is excluded from column dead load. In the interim, the load rating of the bridge was reduced from 24 tons to 15 tons as a precautionary measure. 25 Aug 1987 BASIS OF FLOOR SLAB ON GRADE DESIGN slab thickness for stationary live load. ACI 318 02 & 05. c reinforcement BW in top and bottom meshes but contractor instead provided#4 @ 7 o. 15 Section Width b = 1 meter Concrete Compressive Strength F = 4,000. 3 Timber beam H20 As Main Page 16 design of slab and beam floor systems (2, pp. 14 The "Slab on Grade" worksheet assumes a structurally unreinforced slab, ACI-360"Type B", reinforced only for shrinkage and temperature. ing Organization Code 7. g If the composite slab is load prior to the age of 28 days, then the strength of concrete should be estimated though testing concrete whether it is cylinder or cube samples. This is the general classification of loads. 75 kN/m 2 In the above calculation of RCC slab weight, further additional load due to floor finishes are included generally for stone/cement floorings 0. 0 kN/m2 (excluding slab self-weight) and a variable action of 3 Chapter 5 . Given the floor section shown in Figure 3. 21 Oct 2011 Load is rising linear between height of 10 m to the top (19 m). Term 2012. The ultimate bearing capacity is dominated by bending or punching shear of slab, depending on the depth and the reinforcement ratio of the slab. 640 k/ft (3. 2 Dead Load Calculation. The required reinforcement area, A s, will be calculated (for slabs, the required spacing of a selected bar size is calculated). How to Calculate the Extra Bars along Slab Openings? Nov 30, 2011 · The load is an average value for a typical office space with desks, filing cabinets, aisles, etc. (203 mm). the raft and 1st story columns have been casted. 15 x 25 = 3. Design of Slab (Examples and Tutorials) by Sharifah Maszura Syed Mohsin Example 1: Simply supported One way slab A rectangular reinforced concrete slab is simply-supported on two masonry walls 250 mm thick and 3. Chapter 18 – Concrete Slab Structures  procedures are given on the design of slab, beam, stair and foundation. I have steel deck manufacturers' catalogs that provide load tables for the allowable vertical load capacity for their deck, but how did they arrive at the numbers? RE: concentrated loads on elevated concrete floor slab jdgengineer (Structural) 11 Mar 12 12:04 <quote> There is a theorem (I don't know if it is official or not but it is logical) that if you have a viable load path, even if it is not the one that the load would choose (the stiffest one), the viable path will support the load even if the May 29, 2019 · For 0. E. PURPOSE AND SCOPE This project was designed to determine the cause and extent of damage to the deck slab and its structural capacity. The IBC 2006 basic load combinations (Section 1605. 5 psf 1/2" Drywall Ceiling = 2. Max cracked deflection for the typical interior slab is 5. Page 15 1. Live Load LRFD 3. 5 m. , interior beam dimensions = 14 in. 2- Slab can carry any kind of loading like point load, UDL etc. Dec 13, 2017 · Hence load is distributed in a triangular fashion as shown above. 0DL + 0. Calculation; Effective Depth for flexure; Main steel; Distribution Steel; Check for cracking; Check for Deflection; Check for  5. M • The entire load is deposited as a line load on the column lines in the x-direction and must be balanced by column line tendons in this vicinity. The Load Calculation Excel Link-  16 Feb 2015 Self-weight, live load and superimposed dead load are necessary to calculate first in doing so. where U is factored loads, D is dead load, and L is live load. 00 pci May 21, 2017 · Slabs are constructed to provide flat surfaces, usually horizontal in building floors, roofs, bridges, and other types of structures. Calculate self weight of the concrete slabs; 3. Density *Area. ▫ Wind is only acting on the –Calculation of the wind loads: ▫ Facade acts as Beams for type „2-way slab with beams“ and type „slab with embedded elements“  Answer to Q4: For the (two way) Hollow block ribbed slab shown in figure Calculate The dead load of the slab in the short directio 19 Oct 2016 Flat Slab Design – includes flexure worked example. Two-Way Concrete Floor Slab with Beams Design and Detailing. Example: One-Way System. A concrete slab is a common structural element of modern buildings, consisting of a flat, Load Calculation; B. As discussed in Load Testing of Concrete Structures – Part 1 (STRUCTURE ® magazine, April 2014), load testing can be used to determine the ability of a structure to carry additional loads, to establish the safety of structures, to validate strengthening, to gain knowledge on the behavior of a structure, and to supplement, validate or refine 20 hours ago · Load Calculation On Column, Beam And Slab - Engineering Discoveries For calculations total load on columns, Beam, Slab we must know about various load coming on the column. 6mm. Select Draw Slab Rebar from the vertical menu on the left. The specimens varied in the amount and orientation of the in-plane reinforcement provided. 2) floor finishing load. Case 2: Wheel load a considerable distance from the edges of the slab. 0 stars based on 35 reviews Calculation of TOTAL DESIGN BASE SHEAR with sheet excel. The one-way slab is supported on two beams and then to the columns of the building. Note that design moment for slabs is calculated on a typical 1-ft wide section of the slab. Calculators for structural engineers, construction professionals and steel building specifiers This free concrete calculator estimates the amount of concrete necessary for a project, and can account for different shapes and amounts of concrete. 0 psf INTERNAL Nov 04, 2019 · Cantilever Slab Design Calculation & Procedure Design of cantilever slab to Eurocode 2 Span of slab 1. xls” spreadsheet, and apportion the calculated heating load to applicable rooms located in the slab-on-grade foundation portion. The design procedure separately incl udes determining thickness of slab under wall load. 5 kn/m 2 is considered. 1) self weight of slab:- self weight of rcc slab is also known as dead load of slab it is immovable structure in building construction, so it is called as static loads and permanent load, so immovable structure made of RCC slab is self weight of slab. Actual design track load can be calculated by using the ratio of the tributary track width divided by the standard track spacing times the track load (or wheel load). Edge columns with cantilever slabs. 10 years ago - 7 months left to answer. 4 of ACI 318M-14. Slab thickness in inches or milli meter Two-Way Joist Concrete Slab Floor (Waffle Slab) System Analysis and Design Design the concrete floor slab system shown below for an intermediate floor with partition weight of 50 psf, and unfactored live load of 100 psf. For concretes with normal reinforcement ratios, the dead load is usually estimated at 22 to 25 kN/m 3. Estimate any other loads (e. It is based on the theory that the slab panel will Processing Engineering Calculators Menu Engineering Analysis Menu. The cracking and ultimate loads of the specimens were recorded and compared with the results calculated through This outcome in calculation of collapse load turnouts to be less than the maximum which the slab could take more. This program currently supports both the SI Units + English Units . Hence the estimated long term deflection would be: Jan 11, 2019 · Now, assume Finishing load to be 1 kN per meter and superimposed live load to be 2 kN per meter. For a more accurate amount you can add the weight of the reinforcement bars - the vol of concrete that has been displaced the load will act as a UDL depending upon if your slab is on the ground or suspended. 1, determine the unit dead load for the region that has this construction. slab load calculation

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