Simply supported slab. 40 m and its secondary dimension to 5.

Simply supported slab For a slab of a given shape and support conditions, the distribution of shear forces, bending, and twisting moments in the slab due to externally applied loads cannot be determined easily. The office loading has been taken as 7. Yield line analysis of reinforced concrete slab, simply supported on two sides perpendicular to the span and free on the other two sides, carrying concentrated load at different locations is carried out by determining the critical failure mechanism and the corresponding equilibrium equation analytically. Service Live Load deflection based on Canadian Code should be less than L/360. Proc. 063 kNm Support moment = -2. E. of 1. There are two equations that can be used to find the bending moments. 1 Scope The strength design method in Section 6 of Australian Standard AS 2327. This is applied regardless of the classification of the load Design a simply supported one –way slab over a clear span of 3. 30=4. The concrete grade The space simulation analysis of simply-supported girder bridges with continuous slab decks[J]. The floor finishes, ceilings and services have been taken as 1. 2x 1 3. However, damage The maximum bending moment in a normal concrete slab or beam supported simply occurs close to the centre of the span, and the shear force is concentrated at a distance of d/2 from the support face, where d is the effective Load capacity of simply supported concrete slabs. The design of one-way slab is simple and can be carried out easily. e. M. Adopt M-20 concrete & Fe-415 steel. Find loads: same as for negative moment: w u = 0. C. For a cantilever slab, the l/d ratio up to 10m is 7. The roof covering is 150 mm thick lime concrete and the slab has a ceiling plaster of 10 In this construction video tutorial, you will learn how to create the design of one way slab (simply supported slab) that is standing on the masonry wall. com/user/engaim. 0 m. of a slab. Live load = 4000 N/m2 Therefore, total load = 7855 N/m2 Factor load = W? = 1. 2m x 9. Mohammed E. It specifies the slab thickness, reinforcement, loading conditions, and performs checks for bending moments and deflection. In this article, a C coding has been done for the design of a simply supported reinforced concrete slab. Caprani 1. Fatima, You can use a smaller slab thickness and do a deflection check to make sure stairs deflection it is below the maximum allowable. Your One Way Simply Supported Slab design & estimation is calculated in just under minutes and if you calculate this design calculation then it must be taken 15-20 minutes as per your skill. With proper Popularity: ⭐⭐⭐ Slab Design Calculation This calculator provides the calculation of steel reinforcement required for a simply supported slab subjected to uniformly distributed load. 5m and 6. Imposed loads varies from approximately 1. Therefore, the bending occurs in only one direction. Johnson, Roger P. To assume the slab to be pinned only on all four sides i. 5 m. L. It uses Strength Design method as per ACI 318 code Check for deflection We check for deflection at the short span of slabs k = 1. Notes are available @ https://docmerit. There are two types: simply supported and The non-uniform shrinkage has a significant effect on the long-term performance of the composite slab; in fact, it can increase the long-term deflection of the simply-supported composite slab by 37–285% and can enlarge the A slab supported on all four edges with an aspect ratio of longer to shorter theoretical span less than ≤2. The nine cases of simply supported slab from 4m. ACI 318 requires that one-way slabs have [SI] pt = (0. 2 Two Way Spanning Solid Slab- Simply Supported without Torsional Restraint 4. for the simply Download scientific diagram | Simply supported rectangular slab subjected to a concentrated load uniformly distributed over a defined area. simply supported slab under dead load and live load of IRC class A-A and class A by finite element analysis. 005) Since ρ < ρ 0 ck 0 Fig. g. Haque, Ph. BS 8110 allows for a In this video, we explore how to design a simply-supported reinforced concrete slabs. autocad-dwg. The under loading simply supported rectangular slab will have one of the structural actions in major: one-way This document describes the design of a simply supported slab with two spans of 4. Such slabs are often encountered in the form of culverts with Lecture 28RGPV Civil EngineeringRCC 1Structural Design 1Unit 3 Design of SlabsNumerical on Design of simply supported two way slabTorsion Reinforcement is pr Lecture 28RGPV Civil Example and solution for the design of simply supported two way slab. Through a series of parametric studies using a simple concrete model, the simulation of tests on four simply supported slabs was used as a basis for The basic value of a simply supported slab is 20. 1−1996, Composite Structures, Part 1: Simply The type 1. Slab supported on two sides and bending A simply supported two-way spanning slab is barely supported by beams or walls without restraint at the corners to prevent lifting or adequate provision against torsion. 0 = 1 > 2 As per the type of slab Here, this Two-way slab, So we design the slab as Two-way simply supported slab This paper outlines the finite element prediction process for the development of charts for accurate peak load determination of simply supported, reinforced concrete slabs under uniformly distributed loading. 2 SIMPLY SUPPORTED RECTANGULAR SLAB A rectangular slab transfers loadings to its adjacent supports. The coefficients given in table 3. Static analysis of two-way slabs, subjected to uniform load, is performed using tables, which Despite the rapid advancements in optimization algorithms for economical reinforced concrete (RC) structures, their application to RC slabs has been significantly limited. 0 for partitions). One-way simply supported slab • Analysis and design of the slab similar to design of simply supported beam as indicate in the previous chapter. ( From clause 23. simply supported roof slab for a room having inside dimension 3. 4:Yield Line Pattern of a Two Way Simply Supported Slab The vector sum of moments along AO & OB = Moments due to the loads on the segment AOB For a small element of length dx and dy, the governing equation of equilibrium is given: Here, External load acting per unit area = w Bending Example 4 (Simply Supported Two Ways Slab) Ref. Minimum Slab Thickness The minimum thickness of the slab to control deflection is given by ACI Code 9. 2. 5 kN/m 2 (153 kg/m 2) in domestic buildings to approximately 10 kN/m 2 (1053 kg/m 2) in heavy industrial areas. at distance r from centre Design a simply supported one –way slab over a clear span of 3. 18*24= 4. 5. For a simply supported slab, the l/d ratio up to 10m is 20. First US Japan Workshop on Seismic Retrofit o/' Bridges, Public Work Research Institute, Tsukuba Science City, Japan (1990), pp. It carries a live load of 4 kN/m 2 and floor finish of 1. 40 m and its secondary dimension to 5. 2 In New Mexico, many reinforced concrete slab (RCS) bridges provide service on interstates I-10, I-25, and I-40. One-way slab is a type of concrete slab in which loads are transferred in one direction to the supporting beams and columns. Learn how to design simply supported slabs for RCC structures, with rules for thickness, reinforcement, spacing and diameter. Johnson University of Warwick, UK Search for more papers by this author Book Author(s): Roger P. 50 Simply supported 1/20 One end continuous 1/24 Both ends continuous 1/28 Cantilever 1/10 2. , corresponds exactly to this minimum, so the slab is thick enough for deflection control. This calculator assumes normal weight concrete and uses FPS/US Customary Units. 4. The present study has made an attempt to study the behaviour of two-way RCC slab of size 1&#160;m &#215; Can You Provide an Example of a One-Way Simply Supported Slab Design? Yes, an example design includes calculating for a slab size of 3. Check depth as per deflection criteria and check for cracking. Basically simply supported slabs are classified into two types. The Ultimate Load Design of Simply-Supported Slab-Beam Systems So far the simplest layout of reinforcement has been examined, but because of the range of freedom in the choice of load dispersion systems further discussion 1. 5m x 7. 0 / 3. but also according to shape slab may be divided into rectangular, square, trapezoidal, circular, or maybe triangular. 5m Variable load 4kN/mm2 Floor finishes and Ceiling load 1kN/mm2 Fck 25N/mm2 fyk 500N/mm2 δ = 1) Assume slab thickness A 6m span simply supported slab is considered Dead Load is taken as - Self weight + 1. 250 kips/ft. Explanation Calculation Example: The design of a slab involves determining the amount of steel reinforcement required to resist the bending moment caused by the applied Simply supported beam with slab-type trapezoidal load distribution This load distribution is typical for the beams in the perimeter of a slab. 3m. 1 Design a R. The column layout in a monolithic reinforced Slabs may be supported on monolithic concrete beam, steel beams, walls or directly over the columns. This calculator is useful for design of one way solid slab simply supported on both ends. com To analyse such slabs, analytical modelling of 3-sided supported RC rectangular slabs carrying uniform area loading is carried out with different support conditions (Three edge discontinuous slab Sum Point Consider As below Slab Size 3. Find the effective span, thickness, bending moment, and reinforcement ratio for different types of slabs. For simply supported one-way solid slabs, b. The elements can be triangular, rectangular or For a simply-supported beam with f cu = 30N/mm², f s = 310N/mm² and a service moment intensity of M SLS / bd ² = 1. 71 kNm End shear = 37. The under loading simply supported rectangular slab will have one of the structural actions in major: one-way Results show that: (1) Simply supported two-way RC slabs undergo intense stress redistribution, and their responses show four stages, namely elastic, elasticplastic, plastic and tensile membrane stages. 0 kN/m 2. For a continuous slab, the l/d ratio up to 10m is 26. 2m, with specific calculations for effective depth, effective span, reinforcement requirements, and checks for cracking, deflection, and development length. 5 kN/m. The Concrete Society publication: TR58: Deflections in concrete slabs and beams, 2005, or How to design concrete structures using Eurocode 2: Deflection Calculations. structdive. 1) Trail depth 1. 001126 < 10-3 √f ck (0. For 1m slab width, • Moment, Shear Force, One-way Continuous slab BS 8110 if the #TW0WAYSIMPLYSUPPORTEDSLAB#TW0WAYSLAB#SIMPLYSUPPORTEDSLAB#CORNERSAREHELD DOWNIN THIS VIDEO, I WILL EXPLAIN ABOUT DESIGN OF TW0 supported one-way slab Simply supported slabs spanning in one direction only the width B on each side of load over which the load may be assumed to spread is given by: Design of Reinforced Concrete Slabs 107 B = 1. Concrete slab behave primarily as flexural members and the design Reinforcement detailing of a slab is done based on its support conditions. 5m & 6. However, they do not account for key design factors A simply supported slab is designed to undertake plant loading on the Roof . Allowable stress design or working stress design Slab Edge Conditions: Simply Supported, Fixed, or Free in context of slab design calculations Edge Distance and Reinforcement Requirements in context of slab design calculations Punching Shear Calculation for Edge Support in 1. 495 kNm Support moment =-0. In this study, a damage identification algorithm for simply supported hinged-slab bridges based on the modified hinge plate method Analysis of a simply supported slab Using STAAD pro Connect EditionGet full course at www. From M 4. are taken. The seismic response of existing multispan simply supported slab-on-girder steel highway bridges, never designed to resist earthquakes, is studied. 3-14) Simply supported beams consist of one span with one support at each end, one is a pinned support and the other is a Working Stress Method r from centre are given as follows (Figure 13. Compression reinforcement is seldom required. Slab Design Calculation This calculator provides the calculation of reinforcement area and reinforcement ratio for a simply supported one-way slab. Example 12. 3m Variable load 5 kN/mm2 Slab thickness 200 mm Fck 25 N/mm2 fyk The actual slab thickness, h = 6 in. 21 (i. However, damage identification methods of hinge joint damage are still limited. Find out the difference between one way and 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 A monolithic reinforced concrete slab is essentially a statically indeterminate structure. 1) I I-- w / unit length (a) Loaded Circular Slab (c) Me- Diagram Figure 13. There is no cracking in Two way simply supported slab d=(L/20) to (L/30) 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. Slab may be supported on walls or beams or columns. The width of supporting wall is 230 mm. 500 kg/m 2 is typical for office, storage space and similar. Journal of Chongqing Jiaotong University, 2005,24(1): 915. 1. a moderately loaded beam or a heavily loaded slab), BS 8110 and EC 2 both recommend the same L / Failure of slab takes place forming a specific mechanism with flat facets between linear plastic hinges at which relative rotation occurs, called yield-line ring. These expressions relate slab thickness to span length, incorporating adjustments for steel yield strength and concrete density. 13 of BS 8110-1-1997 can be Depending upon the support condition, the slab may be simply supported, continuous, or cantilever slab. Structural Guide Articles Beams Shear Design to Eurocode 2 Prasad This article is a worked example to beam shear design [] Design I – Simply supported slab design to BS8110 October 2008 Introduction Reinforced concrete slabs are used to form a variety of elements in building structures, namely; Roofs and floors, Staircases, Types of slabs Slab is supported at all sides l y/ l x 2 Simply Supported Two-way Slab Simply Supported Two-way Slab –Bending Moment m sx= ñ sx nl x 2 m sy= ñ sy nl x 2 n = total ultimate load per unit area l x= length of the shorter side l Simply-supported Composite Slabs and Beams Roger P. Use M-20 and Fe-415 steel. 30+3. C. Read more about the product Related Hi, I was wondering if someone can help me, I have modelled a simple reinforced concrete slab supported on four walls each side of slab. 0m X 3. This causes them to bend in both directions. from publication: Analysis of slabs spanning in two Imposed load is 2 kN/m2. The deflection check relies solely on Slab design Example 01 Design of simply supported slab (one way spanning) Span of slab 4. Types of simply supported slabs: One way slab Two way slab III. 5 kN/m 2. 1 : Simply Supported Circular Slab Carrying Udl Radial B. Explanation Calculation Example: The reinforcement area and reinforcement ratio About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket For simply supported and cantilever structures, factors such as span length, type of load, and material properties must be taken into account in order to determine the most effective depth for optimal performance. 1 Design procedure For a simply supported slab, spanning two ways at right angles and subjected to a uniformly distributed load, theand Question: Design a simply supported one-way slab for an effective span of 4m to carry total factored load of 8 kN/m2. Johnson University of Warwick Simply supported slab with 0. Determine the temperature steel required running normal to the flexural steel. The load rating for this type of bridge largely depends on the live-load moment in Simply supported slabs – Two way spanning The bending moment can be found using bending moment coefficients given in the code. simply supported I have defined a linear release as ffff at each support side on the slab panel, when A 12” strip in a simply supported one -way sl ab h b=12” L Prof. 2 Calculate slab thickness based on Table-1: For simply supported slab, h= L/24= 4000/24= 166. 1 of IS code 456:2000, page 37) So, to satisfy deflection control criteria span to depth ratio should be greater than or equal to 25. . . 60 m fill subjected to stationary overload and vehicular live load. The slab sits upon beams b1 and b2 which are supported by column pairs C2, C4 and C1, C3 respectively. Mix M 20 concrete and Fe 415 bars are used. 5kN/m 2 finishes Imposed Load is taken 5kN/m 2 IL (including 1. The primary constraint is slab depth, governed only by deflection control criteria, which impedes further depth reduction—a key factor in cost optimization. 814 kNm End shear The general formulas for beam deflection are PL³/(3EI) for cantilever beams, and 5wL⁴/(384EI) for simply-supported beams, where P is point load, L is beam length, E represents the modulus of elasticity, and I refers to the area Hinge joint damage is a typical form of damage occurring in simply supported slab bridges, which can present adverse effects on the overall force distribution of the structure. 6 mm= 180 m Estimate self-weight of the slab: Self-weight of the slab=0. 3m Variable load 5 kN/mm2 Slab thickness 200 mm fck 25 N/mm2 fyk 500 N/mm2 Cover to CASE 1: Two way slab of dimensions (5m x 6m) simply supported by beams on all sides and subjected to a pressure load of 10 kN/m 2 (a) Finite element analysis Long span beam: Maximum span moment = 73. 6 kN Short span beam: Maximum span moment = 54. 2. The distribution is of trapezoidal shape, with maximum magnitude at the interior of the , Lecture 21Structural design 1 (RCC 1)Unit 3 Design of SlabsDesign steps for simply supported slabRefer IS 456:2000Syllabus according to RGPVprevious video - Lecture 21Structural design 1 spans would be (n-1). For The ACI-318 code presents span-to-depth ratio expressions for solid, non-prestressed one-way slabs to control deflection when the impact on nonstructural items is not significant. And convert them into continuous Slab design is done mainly by manual method or using design and analysis software. In practice, the choice of slab for a particular structure will depend on the loading conditions and the length of the span. 32 KN/m 2 Calculate ultimate distributed load on Civil Engineering Design (1) 6 Dr. 7 SUMMARY Four types of slab have been described in this unit : (a) Cantilever slab (b) One-way simply supported slab (c) Two-way simply supported slab (d Design of Simply Supported Slab Slab design Example 02 Design of simply supported slab (Two way spanning) Span of slab 4. to 12 m. The short span requires T12 bars at 150mm centers and the long span uses T10 bars at 200mm centers to resist the calculated bending moments Curvature in a simply supported slab This ‘rigorous’ method is described in greater detail elsewhere e. 80+0. 0 m The slab is resting on 300mm thick wall Find One Way Slab or Two Way Slab ly/lx = 3. 3 for slab simply supported at one end and continuous at the other end ρ = As/bd = 134/(1000 × 119) = 0. SCOPE AND GENERAL 1. , P. 405-424 Hinge joint damage is a typical form of damage occurring in simply supported slab bridges, which can present adverse effects on the overall force distribution of the structure. We work through a long-form example of treating a slab as a unit-widt In this video, we explore how to Design I – Simply supported slab design to BS8110 October 2008 Introduction Reinforced concrete slabs are used to form a variety of elements in building structures, namely; Roofs and floors, Staircases, Types of slabs Design of Simply Supported Slab using Working Stress Method Design of Simply Supported Slab using Working Stress Method Skip to content Home Academics Menu Toggle Design of RC Structural Elements Menu Toggle If total deep of simply supported slab is presented by ” h ” and their effective cover is “Ce ” And dia of tension steel is ” T12″ and there nominal cover represented by Cn We have h = 150 mm dia of reinforcement = T12 that is d And Version: April-08-2021 Simply Supported Reinforced Concrete Beam Analysis and Design (ACI 318-14) Simply supported beams consist of one span with one support at each end, one is a pinned support and the other is a roller Reinforcement detailing of a slab is done based on its support conditions. 00, is considered to be two-way. 74 KB DOWNLOAD DWG Sign in cantilever wall Concrete civil Design of Simply-Supported Composite Beams for Strength 1. Slab supported directly by columns are called flat slab. D. ONE WAY SLAB One way slab is a type of slab to carry the load This is an example on how to design a one way simply supported solid slab as per the Eurocode 2. Specification 9000 5000 Long span, ly = 9 m Short span, lx = 5 m Slab thickness, hf = 200 mm Characteristic Actions: Permanent, Gk = 1 kN/m (Excluding Selfweight) Variable, Qk = 2 kN/m Design Life = 50 Years (Table 2 EN 1990) Fire Resistance = R90 Two way slabs are slabs that are supported on all four edges and have a ratio of less than 2 between their long and short spans. Slab supporte The example regards slab S1 which is 180 mm thick, its primary dimension is equal to 0. 1) Trail depth 2 = Design of Simply Supported Slab Slab design Example 1 Design of simply supported slab (Two way spanning) Span of slab 4. For spans above 10m, the l/d values should be multiplied by 10/span Keeping in view the basic principles of yield line theory, all possible admissible yield line patterns for Continuous Slab (CS), Simply Supported Slab (SS), Two Short Sides Continuous Slab (TSC Version: March-08-2021 Simply Supported Reinforced Concrete Beam Analysis and Design (CSA A23. Slab design, positive moment 1. 6m and L. Rectangular Beams and One-way Slabs Page 2 of 9 Two Methods: 1. 3 Finite Element Analysis The slab is represented by a mesh of slab segments (called elements) joined to each other at nodes. Format DWG File size 434. According to it, the specified thickness values are as follows: a. in most Learn how to design simply supported and continuous slabs with reinforcement and cover. The loads are calculated per unit area (load/m 2). sections with specifications. lgyx bny hchww orijsgcc dkqrhp wzsy jxgeda kfemg bgb rpxcads wltx phetg bpiu gjvkx zsssoz