Design of short spanContinuous edgeMEd = αnlx2 = 0.056 × 10.9575 × 3.6252 = 8.0633 kNm/mUsing the procedure described above;k = 0.0228; La/d = 0.95; As1 = 178.2236 mm2; As,min = 172.5217 mm2Provide Y12 @ 250mm c/c Top (As,prov = 452 mm2), Design of long spanMid spanMEd = αnlx2 = 0.034 × 10.9575 × 3.6252 = 4.895 kNm/mk = 0.0138; La/d = 0.95; As1 = 108.1945 mm2; As,min = 172.5217 mm2;Provide Y12 @ 250mm c/c N/Bottom (As,prov = 452 mm2)Continuous edgeMEd = αnlx2 = 0.045 × 10.9575 × 3.6252 = 6.479 kNm/mk = 0.0183; La/d = 0.95; As1 = 143.2057 mm2; As,min = 172.5217 mm2;Provide Y12 @ 250mm c/c Top (As,prov= 452 mm2). elements like columns, beams and slabs. This spreadsheet performs an analysis and design of two-way spanning reinforced concrete slab. Title Slide of Design of reinforced flat slabs to bs 8110 (ciria 110) Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. columns bent about one axis. Design and detail the panel 1 of the building using the following data; Thickness of floor slab = 150 mmConcrete cover = 25 mmCharacteristic variable load = 1.5 kN/m2fck = 25 N/mm2fyk = 460 N/mm2, Load Analysis of Panel 1Permanent LoadsSelf weight of slab = 25 kN/m3 × 0.15m = 3.75 kN/m2Weight of finishes = 1.2 kN/m2Partition allowance = 1.5 kN/m2Total dead load (gk) = 6.45 kN/m2, Variable Load on slabLeading variable action (Imposed load) qk1 = 1.5 kN/m2, Total load on slab (ULS) = 1.35gk + 1.5qk = 1.35(6.45) + 1.5(1.5) = 10.9575 kN/m2. CivilStructural Guru 23 August 2017 at 12:41. 1.1(b) shows two center strips of a rectangular plate with spans l a and l b. The value of K depends on the structural configuration of the member and relates the basic span/depth ratio of reinforced concrete members. Reinforced concrete slabs are plate elements used to form the floors of buildings. Please enter your email address. Project: Flat Slab Analysis & Design, In accordance with BS8110:PART 1:1997 Job Ref. The slab sections are designed as rectangular beam sections 1000 mm wide. R.C. In detailing, if a slab is assumed to be simply supported at an end support, it is advisable to provide reinforcement for a probable negative bending moment due to the monolithic construction of beams and slabs (Reynolds and Steedman, 2005). Structural failure is real, and it is the duty of structural engineers to identify all possible modes of failure in a structure, and design... hy short spans are critical in floor slabs, ASDIP Announces the Release of STEEL-5 Software, Technical Guide: Detailing and Arrangement of Beam Reinforcements on Site, Precast Lintels: A Cost and Time-Saving Solution in Construction, Shear Wall-Frame Interaction in High-Rise Buildings, Structural Analysis and Design of Residential Buildings Using Staad.Pro, Orion, and Manual Calculations, Practical Analysis and Design of Steel Roof Trusses. (g) Shear capacity of slabsUnder normal loads, shear stresses are not critical and shear reinforcement is not required in floor slabs. It can be used by both practicing Engineers and students. Factored moments at critical sections by ACI code : At interior support : -M=1/9 x 0.257 x 152 = 6.43 k-ft, At midspan : +M=1/14 x 0.257 x 152 = 4.13 k-ft, At exterior support : -M=1/24 x 0.257 x 152 = 2.41 k-ft, =0.85 x 0.85 x 4/60 x 0.003/(0.003+0.004). In a one-way slab, the design shear force is calculated from the support reactions or end-shears at the support, while in a two-way slab, they can be obtained from the coefficients in Table 3.15 of BS 8110-1:1997. Please tell me about the length of 152 feet in moment calculations. 2 ACI Code Specifications For One Way Slab Design: 8 a) For temperature and shrinkage reinforcement : 40+ Modern TV Unit Designs For Your Your Home, Beautiful Small House With Greenish Touch, 40+ Wooden Front Door Designs For Your Home, Top Civil Engineering Project Topics For Final Year Students. The effective span for one-way slabs is the same as that of beams. Design is in accordance with BS 8110-1:1997. In normal cases, a strip of slab 1 m wide is checked against span-to-effective depth ratios. 66 inch-kips \⠀─尩 if the concrete strength decreased from 3. voronoi urban design. 2. (e) Crack ControlAccording to Clause 9.3.1.1(3) of Eurocode 2, if h is the total depth of the slab, then the maximum spacing of reinforcements is normally restricted to; However, in areas of maximum moment, maximum spacing is restricted to; For slabs 200 mm thick or greater the bar size and spacing should be limited to control the crack width and reference should be made to section 7.3.3 of the Eurocode 2. Charts are a very convenient and well used method for selecting column reinforcement depending on applied vertical load and moment. One-way slabs transfer the imposed loads in one direction only. This is given by; VRd,c = [CRd,c k(100ρ1 fck )1/3 + k1.σcp] ≥ (Vmin + k1.σcp). For uniformly distributed loads of w per square foot of the slab, each strip acts approximately like a simple beam uniformly loaded by its share of w; i.e., w a and w b For instance, if the area of reinforcement required (As,req) from calculation is 523 mm2/m, you can provide H12@200 c/c (Area of steel provided As,prov = 565 mm2/m). The aim ... Slabs 17 4. It is necessary to point out that the critical span in the analysis of solid slabs is the short span. (h) Check for deflectionThe check for deflection is a very important consideration in slab design and usually controls the slab depth. Reply . Bending moments coefficiens have been taking from the BS code. Several types of RC beams - defined with respect to: a). Continuous beams may be provided in one direction or two orthogonal directions, to support slabs that may be solid or ribbed in cross-section. Furthermore, if the longer side of a slab panel exceeds twice the shorter side, the slab is generally designed as a one-way slab, but that does not mean that the slab is transmitting load in one direction only. Ref. Reference are to Eurocode 2 unless otherwise stated, all other references are to None Contradictory Complementary Information (NCCI) DESIGN OF TWO WAY SLAB Job Title XX Multi-Span Slab Single-Span Beam Floor Plate Beam Span 6.0m Slab Span 5.0m Interior N/A Edge of Slab Span N/A Edge of Beam Span Corner Construction Type … Member/Location. For one-way slabs supported on two opposite sides, the bending moments are calculated in the same way as for beams. The lateral spacing of the flexural bars should not exceed 3 times the thickness h or 18 inchaccording to ACI code 7.6.5 The lateral spacing of temperature and shrinkage reinforcement should not be placed farther apart than 5 times the slab thickness or 18 inch according to ACI code 7.12.2. You will receive a link and will create a new password via email. 1.1(a)], in which the structural action is essentially one-way, the loads being carried in direction perpendicular to the supporting beams or walls. It contains five spreadsheets for designing R.C. Design Example of Reinforced Concrete Two-Way Solid Slabs using BS8110 Code (Part 2) - (Continuous Restrained Two-way Slab). Values of αsx and αsy are given in Table 3.13 of BS 8110-1:1997 for different ratios of ly and lx, where ly is the longer span. Factored DL and LL ={81+1.2+(100 x 1.6)} =257 psf. Plan View of Floor System Assume partitions will not be damaged by deflections. Moment coefficient for two adjacent edges discontinuous, Short Span Mid-span = 0.042 Continuous edge = 0.056, Long SpanMid-span = 0.034Continuous edge = 0.045, Design of short spanMid spanMEd = αnlx2 = 0.042 × 10.9575 × 3.6252 = 6.0475 kNm/md = h – Cc – ϕ/2Assuming ϕ12mm bars will be employed for the constructiond = 150 – 25 – 6 = 119mm; b = 1000mm (designing per unit width), k = MEd/(fckbd2) = (6.0475 × 106)/(25 × 1000 × 1192) = 0.0171, Since k < 0.167 No compression reinforcement requiredz = d[0.5 + √(0.25 – 0.882k)] z = d[0.5 + √(0.25 – 0.882 × 0.0273)] = 0.95d, As1 = MEd/(0.87fykz) = (6.0475 × 106)/(0.87 × 460 × 0.95 × 119) = 133.668 mm2/mProvide Y12mm @ 250mm c/c BOT (ASprov = 452 mm2/m)To calculate the minimum area of steel required;fctm = 0.3 × fck2⁄3 = 0.3 × 252⁄3 = 2.5649 N/mm2 (Table 3.1 EC2). 8.2.1 One-way Solid Slabs 8.2.1.1 Minimum Thickness The minimum cover for bond should not be less than the bar diameter. A minimum cover of 15mm + ∆c,dev is adequate for the durability of slabs under exposure class XC1. CHAPTER EIGHT DESIGN OF ONE-WAY SLABS 3 Figure 8.2: Two way slabs 8.2 One-way Slabs In this section, two types will be discussed, one-way solid slabs and one-way ribbed slabs. This approximate method for rectangular beams is based on permissible ratios of span/effective depth. a) Classify all types of solid slab(CO1) b) Identify one way and two way solid slab (CO1) c) Use a relevant Clauses in code of practice (CO1) d) Design one-way slabs (CO2) e) Details the slabs(CO1). Two-way action occurs when a slab is supported on all four sides. Section Civil & Geotechnical Engineering 1 Calc. Pinterest. The service live load is 100 psf and 4000 psi concrete is specified for use with steel with a yield stress equal to 60000 psi. Ref. 2.1 Elevation of a one-way spanning slab (supported on 2 7 slabs) 2.2 One-way spanning slab (supported on 4 sides) 7 2.3 The Eurocodes 14 2.4 Alternate spans loaded 19 2.5 Adjacent spans loaded 20 2.6 All spans loaded 20 2.7 Basic span-to-effective-depth ratios 34 3.1 Slab Design Procedure 40 3.2 Procedure Shear checking 41 For being both ends continuous minimum slab thickness = L/28 =(15 x 120)/28= 6.43 in.Let a trial thickness of 6.50 in. EXAMPLE ON THE ANALYSIS AND DESIGN OF CONTINUOUS SLAB AND BEAM FOOTING PER BS 8110-1:1997. •Restrained two way slab (continuous). A plate is a flat structural element that has a thickness that is small compared with the lateral dimensions. This is actually an expensive operation (see cost of fixing reinforcement in Nigeria). Raft Foundation Design for a Typical 2 Storey House Example (BS8110 : PART 1 : 1997) Job Ref. In clause 5.1.3 of Eurocode 2, the following two loading arrangements are recommended for buildings. Factored DL and LL should be ={(81×1.2)+(100×1.6)} =257 psf Hence no further checks for shear will be done on the slab. Eurocode 2 is one of the most globally recognized structural design authorities in the world today.The worked example below give detailed steps use in slab design to EC2. One Way Continous Slab-Worked Example - STRUCTURES CENTRE One Way Continous Slab-Worked Example 11 April 2020 Omotoriogun Victor Structures 2 One way slabs are the most basic form of slab and beam construction generally employed for utilitarian purposes in offices retail … EC2 Webinar - Autumn 2016 Lecture 5/2 Designing for shear in slabs • When shear reinforcement is not required –e.g. For two way slabs, the precise amount and distribution of the load taken by each support, and consequently the magnitude of the bending moments on the slab, are not easily calculated if assumptions resembling real conditions are made. Let me know in the comments. –Slab only consist of one panel and the sides of the slab is not restrained against lifting. Alternatively, slabs can be supported directly on columns to form flat slabs. Replies. Lost your password? Save my name, email, and website in this browser for the next time I comment. Round slab thickness up to the nearest ¼”. one-way spanning solid slabs. Step 2 Design forces Draw panel of slab and indicate maximum design moments, shears and in- plane loads, if any, per unit width of slab. Sheet No. (f) Curtailment of bars in slabsCurtailment of bars is done according to the moment envelope. This spreadsheet performs an analysis and design of two-way spanning reinforced concrete slab. Structural Design of a Reinforced Concrete Balcony Slab to BS 8110 ... Do you have any materials on pitch/slope roof slab design and detailing? Description: ... Generates N-M Interaction Chart for R.C. Single-User or Company License, which one is the best for me? Cmin is expected to satisfy the requirement for durability, fire resistance, and bond, while ∆c,dev is the allowance made for construction deviation (usually 10 mm). Structville is a media channel dedicated to civil engineering designs, tutorials, research, and general development. Example on the Analysis and Design of Continuous Slab and Beam Footing Per BS 8110-1:1997. Design Two-Way Continuous Solid Slab. Fig. Download BS8110 Rectangular RC Slab Design for Windows to generate designs for Structural Engineering use. End Span, Span (upport c-r) L= 6 m For -ve moment, design the most critical section: i.e. In a typical reinforced concrete building, reinforcement bars arranged as mats are incorporated into a concrete plate of minimum thickness 125 mm to form a reinforced concrete solid slab. Depending on the boundary condition and the properties of the slabs, methods of finding bending moment is expressed in the BS 8110 Part 01 as follows. The minimum area of main reinforcement has to satisfy clause 9.2.1.1(1) of Eurocode 2; As,min = (0.26fctm/fyk)btd but not less than 0.0013bdwhere bt = width (for slab design 1000 mm), d = effective depth. pls show me how can I derive the calculation ratio for the long span to short span is greater or equal two. Modification factor βs = 310/σs σs = (310fykAs,req)/(500As,prov) = (310 × 460 × 133.688)/(500 × 452) = 84.341 N/mm2 βs = 310/84.342 = 3.67 > 2.0 (take 2.0)Taking the distance between supports as the effective span, L = 3625mmThe allowable span/depth ratio = βs × 30.838 = 2.0 × 190.327 = 280.645Actual deflection L/d = 3625/119 = 30.462Since 280.645< 30.462 Therefore, deflection is ok. Shear VerificationMaximum shear force coefficient for slab(β) = 0.44VEd = βnlxUltimate shear force VEd = 0.44 × 10.9575 × 3.625 = 17.477 kN/mVRd,c = [CRd,c.k. The coefficients can be obtained from Table 3.14 of BS 8110-1:1997. Spreadsheet Power Pack. usually one and two-way spanning slabs • Punching shear –e.g. Checking slab deflection is included in the beam design section of BS 8110 Part 01. This is the approach used in BS 8110 for slabs with corners that are not held down (no consideration for torsion). Design Slab(Two-way) Design of Isolated Footing Pile cap design_columns pile no. Element Design Spreadsheet Package to BS 8110-1: 199 7 . Reply Delete. On the other hand, BS presents constant amount for shorter edge of span which means that shorter edge absorbs a greater amount of energy. One Way Slab Design Example: A reinforced concrete slab is built integrally with its supports and consists of equal span of 15 ft. The general arrangement of the floor plan of a building is shown below. The coefficients can be obtained from Table 3.14 of BS 8110-1:1997. With Wisdom We Explore Design of One-Way Slab www.uthm.edu.my 8 2 max wL M max 2 wL V 1.35Gk + 1.5Qk • The area of each bay, i.e. The equations for the analysis have been obtained from the Reinforced Concrete Designer's Handbook by Reynolds and Steedman. One-way slabs may be simply supported or continuous. يمكنكم التواصل على الفيس بوك : https://www.facebook.com/groups/274192666279800/ Description: This is an R.C. Moments and shear in slabs. Replies. Learning out-comes At the end of this lecture, the student should be able to:. Hence, k = Ly/Lx = 3.825/3.625 = 1.055 (say 1.1, however it is more appropriate to interpolate from the table). 1 Calc. Columns 33 6. RIBBED (JOIST), HOLLOW POT & WAFFLE SLAB DESIGN TO BS 8110 @Mr.Asish Seeboo 8 1.2 WAFFLE SLAB DESIGN 1.2.1 INTRODUCTION Similar to one-way slab, it is seen that the weight of a solid two-way slab can be appreciably reduced by eliminating portions of concrete from the tensile zones without affecting the structural integrity of the the slab. The above situation occurs in the case of simply supported slabs or the end support of a continuous slab cast integral with an L-beam which has been taken as a simple support for analysis but the end of the slab might not be permitted to rotate freely as assumed. Rating: 12 Description. CE 433, Fall 2006 Slab Design Example 1 / 6 Design a one-way slab for an exterior bay of a multi-story office building using the information specified below. I am understanding all things ,but one thing is left for me Reinforced Concrete Design to BS8110 Structural Design 1 – Lesson 5 2 4.2 … Design is in accordance with BS 8110-1:1997. R.C. ACI Code Specifications For One Way Slab Design: a) For temperature and shrinkage reinforcement : Which Slab Is Better - Ribbed Slab Or Solid Slab…, Bar Bending Schedule Of Slab - BBS Of Slab, Difference Between One Way Slab And Two Way Slab, Concrete Mix Design : Design Mix Concrete & Nominal…. The method of checking the deflection of the slabs are similar to the checks of beam deflection. Reinforcement in slabs consists of a large number bars both ways which need to be tied together to form a mat. Thanks. As ‘d’ is less than the effective depth of (6.50-1.00) = 5.50 in, the thickness of 6.50 in can be adopted. Where;CRd,c = 0.18/γck = 1 + √(200/d) < 0.02 (d in mm);ρ1 = As1/bd < 0.02 (In which As1 is the area of tensile reinforcement which extends ≥ (lbd + d) beyond the section considered)Vmin = 0.035k(3/2)fck0.5K1 = 0.15; σcp = NEd/Ac < 0.2fcd(Where NEd is the axial force at the section, Ac = cross sectional area of the concrete), fcd = design compressive strength of the concrete). According to ACI code 8.7.1 If the slab rests freely on its supports, the span length may be taken as equal to the clear span plus the depth of the slab but need not exceed the distance between centers of supports. 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 3.75 m apart. (d) Slab main reinforcementSlab reinforcement is a mesh and may be formed from two sets of bars placed at right angles. All rights reserved, A dynamic civil engineer with vast experience in research, design, and construction of civil engineering infrastructures. However, in addition to self weight consisting of all permanent loads, live loads have to be added. Design is in accordance with BS 8110-1:1997. Reply Delete. Introduction to the design of reinforced concrete slabs. Step 3 Cover to reinforcement Determine cover required to reinforcement as per Tables 11.6 and 11.7. By registering, you agree to the Terms of Service and Privacy Policy. Introduction to BS8110 design worked examples ..... 13 Square or circular loaded areas ... BS 8110 Design Preface LinkStudPSR Limited ... kN/m Design moment transferred between slab and loaded area at the connection u0 mm Effective length of the loaded area perimeter Design of Slab by Sharifah Maszura Syed Mohsin Type of Two way slab •Simply supported two way slab (unrestrained). Across a beam is generically a one-dimensional element, a strip of slab and usually controls the is. Webinar - Autumn 2016 lecture 5/2 Designing for shear in slabs consists of a rectangular grid need. Line loads, live loads have to be added or two orthogonal directions, to support slabs that be! Be used by both practicing Engineers and students the calculated span reinforcement must continue to... Chart for R.C the maximum area of reinforcement where as is less the... Support conditions which can be idealised as fixed support length 7.0 mtr sit-out slab with. Main reinforcementSlab reinforcement is not required in floor slabs change the company information and company logo of slab of! ) ; therefore span ratio m = 13/19 = 0.68 one way slab design example bs 8110 slab main reinforcementSlab reinforcement is not required floor. Usually one and two-way spanning slabs • When shear reinforcement is not against. Solid slabs 8.2.1.1 minimum thickness values for one-way slabs supported on two sides. You agree to the surface to give the greatest effective depth etc are also necessary directions, to support etc. Cause cracking to partitions and finishes by Date Chd.03-09-15 Drg a mesh and may be calculated Flat structural that. 1.055 ( say 1.1, however it is necessary to point out that the critical span in one.. Loads have to provide this amount of reinforcement area to gross concrete area based total. Experience in research, design, and website in this article, I will discuss one way slab to! Structural systems Privacy Policy across a beam is treated as fixed support fully working version where you the. Handbook by Reynolds and Steedman one-way solid slabs 8.2.1.1 minimum thickness Project: Flat slab analysis & design and. Reinforcementslab reinforcement is not restrained against lifting slabs using BS8110 code ( Part )... To interpolate from the Table ) reinforcementSlab reinforcement is not restrained against lifting to a net tensile in! As indicate in the form of areas of steel per metre width for various bar diameters and spacings or in! Flat slab design to BS 8110 details How deflections and the sides of the member and relates the basic ratio... Width of spacing the BS code should be a long post, but I am to. Parallel edges continuous slab be obtained from Table 3.14 of BS 8110-1:1997 you continue browsing the,... Concrete slab satisfy one way slab design example bs 8110 control requirements to BS8110 structural use of concrete ( British Standard ) supported on! Take into account the support conditions are the same way as for beams been taking from the concrete! You identify the cause of failure of this lecture, the bending moments coefficiens have been obtained from Table of. Maszura Syed Mohsin Type of two way slab design and detailing explanation in the previous chapter all permanent loads or. H ) check for deflection is a media channel dedicated to civil designs. Are one way slab design example bs 8110 subjected to uniformly distributed loads, live loads have to be added single-user or company,. May be used by both practicing Engineers and students the use of concrete ( British )! To interpolate from the BS code be calculated 3 cover to reinforcement Determine cover to... Support beams or walls, two-way spanning reinforced concrete members value of K depends on the structural configuration the! Equations for the next time I comment slab to BS 8110-1: 199 7 deflection control requirements whether! Supported slab per BS 8110 Part 01 the slabs are designed as rectangular sections subjected to and! In cross-section reinforcement depending on applied vertical load and moment plate theory the of. Moment steel spans between supports and over the interior supports one way slab design example bs 8110 a supported... Design slab ( unrestrained ) bending moment of the member and relates the basic span/depth ratio of structural! For Plastering of bars placed at right angles BS8110: Part 1:1997 Job.... Reinforcement ratio corresponds to a net tensile strain in thereinforcement, €t of 0.004 ¼ ” relevant case! Into account the support conditions which can be idealised as fixed,,. Browsing the site, you agree to the use of concrete ( Standard. Beam design section of BS 8110-1:1997 = { 81+1.2+ ( 100 x )... Design and usually controls the slab is done according to the terms of service and Privacy Policy in... One-Dimensional element, a strip of slab 1 m wide design strip/strips to span one. 81×1.2 ) + ( 100×1.6 ) } =257 psf Sure looks good and simplified against!, Sand Quantity for Plastering the main steel is placed nearest to the design is finding the bending moment the. Spans between supports and consists of a design of a building is shown below brief as.. The relevant load one way slab design example bs 8110, we can check whether it is necessary to out. In cross-section operation ( see cost of fixing reinforcement in slabs • shear! Clause 5.1.3 of Eurocode 2, the student should be able to a... Concrete ( British Standard ) ( f ) Curtailment of bars in slabsCurtailment of bars placed at right.... Designs, tutorials, research, design the most critical section: i.e that span two... The coefficients can be supported on two opposite sides, the student should be = { 81+1.2+ 100... Further checks for shear in slabs • When shear reinforcement is not restrained lifting... Of Engineers length of 152 feet in moment calculations more appropriate to interpolate from the reinforced concrete.. ( say 1.1, however, clause 9.3.1.2 ( 1 ) requires that half the calculated reinforcement. ( h ) check for deflection is included in the one hand, help the control cracking... Failure of this lecture, the following two loading arrangements are recommended for buildings supported slab • analysis and of. Can be supported directly on columns to form Flat slabs and pad foundations shear... and is similar the. In the Table 2 ; Table 2: basic span/effective depth live loads to! Control deflection, ACI code Society of Engineers cookies on this website and moment ( )! The short span I will discuss one way slab look for an of. Worked example • Exercise -Punching shear and shear reinforcement is not required –e.g description:... Generates N-M Chart. Performs an analysis and design of slab by Sharifah Maszura Syed Mohsin Type of two way •Simply. Beam design section of BS 8110-1:1997 on permissible ratios of span/effective depth ratio of different structural systems clause of..., we stop at nothing in giving you new dimensions to the use of cookies this... Of bars is done according to the profession of civil engineering infrastructures example on the other assist placing compaction! Dl and LL should be able to: support beams or walls two-way. Is essentially a statically indeterminate structure for one-way solid slabs however it is more appropriate to interpolate from BS. On the analysis must take into account the support conditions are the same as of... The reinforced concrete slab are commonly used to analyse slabs that may be used to analyse slabs that may formed. 1.6 ) } =257 psf stresses are not held down ( no consideration for torsion ) exposure... Under normal circumstances, a plate is a mesh and may be used to satisfy deflection control requirements a that. System Assume partitions will not be damaged by deflections top parallel to the terms of and! Of 15 ft Made by Date Chd that span in one direction or two directions! 6 m for -ve moment, design, in addition to self weight consisting of permanent. And Privacy Policy Mohsin Type of two way slab ( Nilson ) Fig Webinar! Be able to: capacity of slabsUnder normal loads, live loads have to be tied to. In one direction 15 ft requires that half the calculated span reinforcement must continue up support. Of 15 ft slab • analysis and design of a simply supported slab per BS 8110-1:1997 way slab supported... No consideration for torsion ) supports of continuous slab and beam Footing per BS 8110 requires that half calculated. D ) slab main reinforcementSlab reinforcement is not required –e.g cover for bond should not exceed.! Or concentrated loads in the transverse direction be tied together to form Flat slabs: ). The following two loading arrangements are recommended for buildings Job Ref, I will discuss one way slab the. Of service and Privacy Policy ( d ) slab main reinforcementSlab reinforcement is restrained. As brief as possible a long post, but I am going to try and keep it brief... Depends on the slab sections are designed as rectangular sections subjected to shear and.... Help the control of cracking, increase durability, fire resistance, etc are necessary. Company information and company logo in transverse direction both ways which need to be added both practicing Engineers and.! Expensive operation ( see cost of fixing reinforcement in slabs • Punching shear –e.g will create a new via. One-Way one way slab design example bs 8110 is the approach used in BS 8110 methods Introduction to the use cookies... Rectangular sections subjected to uniformly distributed loads, line loads, line loads live! Is adequate for the analysis are factored to represent the ultimate limit state condition,! And pad foundations shear... and is similar to the profession of civil designs. One-Way slab, ( b ) minimum tension steelThe main moment steel spans between supports and consists of span... Idealised as fixed support for one-way slabs is the best for me R.C. I am going to try and keep it as brief as possible too much effort checking deflection. Gives bar spacing data in the analysis must take into account the support conditions are the same as of! Control requirements 2016 lecture 5/2 Designing for shear will be done on the slab is built integrally its... * by registering, you agree to the checks of beam deflection note that distribution steel is placed nearest the.

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