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. ... Design of Two-Way Slab www.uthm.edu.my.. Design of Slab by Sharifah Maszura Syed Mohsin Type of Two way slab •Simply supported two way slab (unrestrained). Bending moments coefficiens have been taking from the BS code. Design the floor slab … The details will be automatically copied to the other sheets. From table 3.14 (see above), found bending moment coefficients are as follows. Step 2 Design forces Draw panel of slab and indicate maximum design moments, shears and in- All Rights Reserved. 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. Basic Structural Element Design to BS 8110-1:1997. Section Civil & Geotechnical Engineering 1 Calc. ft-k 8 2 2 1 l wlM 86. document.getElementById('cloak8eba7340303e66f1f9933568044c4d69').innerHTML = ''; It is corrected now. One way spanning slabs –Refer Table 3.13 for bending moment coefficient. 1. nice user-friendly interface I do not know where to look for an example of a design of a simply supported slab per BS 8110. If you continue browsing the site, you agree to the use of cookies on this website. 2.3.12.1 Analysis of One Way and Two 29 Way Slab 2.3.12.2 Design for Shear 31 2.3.12.3 Spacing and Quantity of 32 ... 3.5.3 Flow Charts for Slab Design using BS 8110 39 3.5.4 Flow Charts for Slab Design using Eurocode 2 42 ... 4.3 Example for data input 49 4.4 Example of calculations 50 No of types of soil; Two or more types; Soil density; Firm to loose; Design depres’n dia under slab; φ depslab = 3350 mm; Design dep’n dia under thicks; φ depthick = 3400 mm Raft slab definition Max dim between joints; l max = 10.000 m; Slab thickness; h slab = 200 mm Depth of h’core beneath slab; h Design Two-Way Continuous Solid Slab. Use the Save button to permanently store your new settings. Design is in accordance with BS 8110-1:1997. Worked Example. According to clause 3.7.2.7 of BS 8110, the simplified method can be used for flat slabs that the lateral stability is not dependent on the slab and columns provided that the following conditions are met; The bending moment can be found using bending moment coefficients given in the code. flat slabs and pad foundations Shear ... and is similar to BS 8110 methods You need JavaScript enabled to view it. Fig. There are two equations that can be used to find the bending moments. It can be used by both practicing Engineers and students. These moments are necessary for us to get the amount of steel needed in the slab and also its thickness. n.lx2 Msy = Bsy .n.lx2 Msx , Msy - Moment per unit width in x , y direction 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. 3.12.5.3. Slab design is comparatively easy when compared with the design of other elements. Several types of RC beams - defined with respect to: a). Check for slabs : https://youtu.be/x-nc7avMH0w Design of one way continuous slabs : https://youtu.be/hCFeXnmigjM Structural Guide © 2020. 2. input cells automatically cross out invalid data BS 8110: Part 1: 1997) - Two-way Simply Supported Slab - Table 3.13: Bending moment coefficient for simply supported two-way slab (Ref. © 2007-2020 MoreVision Ltd. All Rights Reserved. The floor slab is supported by all sides, the moments in the directions x and y (l x and l y) and this moment is a function of the function of the ratio of the two span (x and y) and the restraints conditions at each support.. Support Conditions, b). var prefix = 'ma' + 'il' + 'to'; The equations for the analysis have been obtained from the Reinforced Concrete Designer's Handbook by Reynolds and Steedman. Reinforced Concrete Design to BS8110 Structural Design 1 – Lesson 5 6 4.4 Reinforcement Details The code (BS8110) requires the final design to pay attention to: 1. Element designs with notes and discussions have added to get comprehensive knowledge. Design of shorter spanEffective depth = 150-25-10/2 = 120 mm, K = M/bd2fcu = 4.8×106/(1000×1202x25) = 0.028, Hence, section is singly reinforced. SETUPThis spreadsheet has been formatted using Arial, Symbol and Callibri truetype fonts. Beam Section / Slab Section Design (BS 8110 -1997) Individual Footing Design (BS 8110 -1997) Post Tension analysis and Design to EC2 by The Concrete Center; Crack width calculation for (BS 8110 BS 8007) by The Concrete Center; Reinforced Concrete Retaining Wall Design to BS 8110 … Similarly, bending moments at supports also can be found from the above coefficients. According to ACI-318-1963. (two way slab design examples (part 2 تصميم البلاطة التي تعمل في اتجاهين (الجزء الثاني) - Duration: 45:29. Top and bottom cover to reinforcement is 25mm. Bending moments coefficiens have been taking from the BS code. There is two conditions that should be satisfied to use the above table. Design Of Reinforced Concrete Structures ii Two-Way Slabs 8 C: Cross sectional constant defines torsional properties C = X: smallest dimension in the section of edge beam. Example: Design the 4 marked slab panels of an ordinary house. Main features of the spreadsheet FOREWORDThis spreadsheet performs an analysis and design of two-way spanning reinforced concrete slab. In the Eurocodes, the analysis of flat slab is the same as that recommended in BS 8110. The first stage of the design is finding the bending moment of the slab panels. addy8eba7340303e66f1f9933568044c4d69 = addy8eba7340303e66f1f9933568044c4d69 + 'hotmail' + '.' + 'com'; Min and Max reinforcement as a percentage of the gross CSA. Slab design, BS 8110 slab design, how to determine ultimate load for slabs, how to check for deflection in slabs, how to calculate for dead load, how to calculate for lever arm, basics of slab design, how can I design a 2 way spanning slab, Note: One-way spanning slabs should be treated as beams of unit width and Chapter 2 should be followed except for minimum shear reinforcement. 1.1: Load transfer in (a) One-way slab, (b) Two-way Slab (Nilson) Fig. Beam Design Exle Bs 8110 January 24, 2018 - by Arfan - Leave a Comment Advance design what is the formula for taking load from two way slab reinforced concrete beam design to bs8110 bs 8110 1 google docs span continuous beam element introduction to structural BS 8110 gives a simple formula for restrained slabs ; Msx = Bsx . This email address is being protected from spambots. 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. –Slab only consist of one panel and the sides of the slab is not restrained against lifting. fc’= 17.25 MPa fy = 300 MPa Analysis and Design of Slabs Two Way. However, in addition to self weight consisting of all permanent loads, live loads have to be added. Slab design is comparatively easy when compared with the design of other elements. Design is in accordance with BS 8110-1:1997. You need JavaScript enabled to view it. by Dr. C. Sachpazis Date 18/01/2014 Chk'd by Date App'd by 1 FLAT SLAB DESIGN TO BS8110:PART 1:1997 Slab geometry Span of slab in x-direction; Span x = 7200 mm Span of slab in y-direction; Span y = 7200 mm The following table can be referred to find the bending moment coefficients. usually one and two-way spanning slabs • Punching shear –e.g. Reference Design Calculations Output Design of Slab Panel Between Grids A/B and 1/2) Assume a slab thickness of a 162.5mm. the building width × column spacing, exceeds 30 m2. Also, construction materials, shoring system design, water retaining structures, crack width calculations, etc. The first stage of the design is finding the bending moment of the slab panels. & 3.12.6.1) - This will on the one hand, help the control of •Restrained two way slab (continuous). by Skype or 1.2 TWO WAY SPANNING SLAB DESIGN. EC2 Webinar - Autumn 2016 Lecture 5/2 Designing for shear in slabs • When shear reinforcement is not required –e.g. Basic Structural Element Design to BS 8110-1:1997 1.2 TWO WAY SPANNING SLAB DESIGN Reference Design Calculations Output Design of Slab Panel –Between Grids A/B and 1/2) Assume a slab thickness of a 162.5mm. 3. automatic generation of a step by step design calculation. Nevertheless, the ... Design examples, charts are included, with BS 8110: Part 1: 1997) - Two-way Restrained Slab Sorry crystalinv I use BS8118 a Design Code quite a lot and my old brain must have been stuck in a groove. var path = 'hr' + 'ef' + '='; It is convenient to think of such slabs as consisting of two sets of parallel strips, in each direction and intersecting each other. 4.0 Slabs 49 5.0 Columns 68 6.0 Column Beam Joints 93 ... concept, the drafting of the Code is largely based on the British Standard BS8110 1997 adopting the limit state design approach. Structural loads, structural analysis and structural design are simply explained with the worked example for easiness of understanding. Hello John Pls correct this under the Calculation reference section. Top and bottom cover to reinforcement is 25mm. var addy_text8eba7340303e66f1f9933568044c4d69 = 'crystalinv' + '@' + 'hotmail' + '.' + 'com';document.getElementById('cloak8eba7340303e66f1f9933568044c4d69').innerHTML += ''+addy_text8eba7340303e66f1f9933568044c4d69+'<\/a>'; This spreadsheet performs an analysis and design of two-way spanning reinforced concrete slab. The spreadsheet has been optimised for a screen resolution of 1024x768 HiColor (16 bit) using large fonts.Use the Zoom button on the toolbar to reduce or enlarge the display to suit your computer. The equations for the analysis have been obtained from the Reinforced Concrete Designer's Handbook by Reynolds and Steedman. SLAB DESIGN TO BS 8110' 'www excelcalcs com Two Way Slab Design to BS 8110 June 12th, 2018 - Two Way Slab Design to BS 8110 and design of two way spanning reinforced concrete slab Design is in accordance with BS 8110 1 Macro for it to work''reinforced concrete design to bs8110 structural design 1 june 22nd, 2018 - bs 8110 details how deflections This spreadsheet performs an analysis and design of two-way spanning reinforced concrete slab. Design Slab(Two-way) Design of Isolated Footing Pile cap design_columns pile no. Project: Flat Slab Analysis & Design, In accordance with BS8110:PART 1:1997 Job Ref. have discussed in addition to other aspects. Just click the review tab and then click "Unprotect Sheet" (for Excel 2007), Calculation ReferenceReinforced Concrete DesignBS8110| Find on Amazon.com | Find on Amazon.co.uk | Find on Amazon.fr | Find on Amazon.de | Find on Amazon.ca |Analysis of Reinforced Concrete, US +1 617 5008224 Note: the C relation is applicable directly for rectangular section only, but when used for L-Shape beams, we should divide it to two rectangular sections and find C. (Cl. The design process for the now withdrawn BS8110 design standard works slightly differently to that used in the new EC2 (BS EN 1992-1-1:2004) standard, and so we have laid out a … Basic Steps in Two-way Slab Design Choose layout and type of slab. This spreadsheet performs an analysis and design of two-way spanning reinforced concrete slab. Analysis and Design of Slabs Two Way. msx= αsxnlx2msy= αsynlx2Here msx and msy are the bending moments at each direction, αsx and αsyy are the bending moment coefficients and lx is the shorter span of the slab panel. 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. var addy8eba7340303e66f1f9933568044c4d69 = 'crystalinv' + '@'; 3.3 STEP-BY-STEP DESIGN PROCEDURE FOR SLABS Step 1 Analysis Carry out analysis (follow Section 3.1.2). Bending moments coefficiens have been taking from the BS code. Two-Way Slab Analysis and Design ACI 318 states that a slab system shall be designed by any procedure satisfying equilibrium and geometric compatibility, provided that strength and serviceability criteria are satisfied. Company details cannot be entered in the other sheets directly.KEY INFORMATIONMicrosoft ExcelThis spreadsheet has been developed for use in Microsoft Excel 2007 on the Microsoft Windows XP operating system.British Standard Specification (BSI)This spreadsheet has been developed to comply with BS 8110 : Part 1 : 1997 SupportPls direct your comments and suggestions to: This email address is being protected from spambots. by mobile, EU +44 113 8152220 by mobile. There is a table to find the bending moment coefficients depending on the boundary conditions and the ratio of the two spans which is a large span to a small span. Self weight of the Slab is calculated automatically and included in the calculations. TCC82 Pilecap Design; TCC94 Two Way Slabs; TCC101 Detailing data; RC Spreadsheets to BS 8110. You can unprotect it if you wish. Design is in accordance with BS 8110-1:1997. (h) Check for deflection The check for deflection is a very important consideration in slab design and usually controls the slab depth. Distinction of two-systems from one-way systems is given by ACI 318-14 (R8.10.2.3 & … Minimum Depth of 2-Way Slab for Deflection Control. • Flat Slab Design –includes flexure worked example • Exercise -Punching shear. - Continuous One-way Slab - Table 3.12: Ultimate moment and shear coefficients in continuous one way slab (Ref. So part of the load is carried by one set and the remainder by the other. The equations for the analysis have been obtained from the Reinforced Concrete Designer's Handbook by Reynolds and Steedman. 2.2 Singly reinforced beam design, 2.3 Notations in beam design, 2.4 Analysis of singly reinforced beam section, 2.5 Design methodology and 2.6 Assignment 2.1 Introduction to Reinforced concrete beams Prime purpose of beams - transfer loads to columns. Moments in 2 way slabs can be calculated from table 3.15 in BS8110 . 2. hmin = (inner perimeter of slab panel)/180 ≥ 90 mm. The ration of shorter span to a longer span = 1.3Characteristic strength of concrete = 25 N/mm2Cover to the reinforcement = 25 mm, Characteristic strength of reinforcement = 460 N/mm2, Shorter Span = 3mSlab thickness = 150mmLive Load = 2.5 kN/mm2Finishes and partitions = 1 kN/mm2, Consider a slab panel with two adjacent edgers discontinues. Simply supported slabs – Two way spanning. Using the above-explained method, binding moments can be found in each case. 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. Additional InformationYou need to enable Macro for it to workThe Workbook is protected (but with no password) to prevent accidental changing of formulas. In addition, the span behind moments at supports also can be found from the above Table. Notation of the bending moments at span and supports are as follows. Z = d[0.5+{0.25-K/0.9}1/2] = 120[0.5+{0.25-0.028/0.9}1/2] = 116.174 mm, As = M / (0.95fyZ) = 4.8×106 / (0.95x460x116.174) = 197 mm2, Provide T10 bars at a spacing of 200mm.Provided reinforcement 393 mm2/m, Things to Remembered in Concrete Construction, Culvert [types, design aspects, failures]. At Short SpanNegative moment at continues edge = 0.069Positive moment at mid-span = 0.051, At Longer SpanNegative moment at continues edge = 0.045Positive moment at mid-span = 0.035, Dead Load = 0.15x 24 = 3.6 kN/mm2, Design Load = 1.4 Dead Load + 1.6 Live Load = 1.4×4.6 + 1.6×2.5 = 10.44 kN/mm2, Positive moment at mid span (shorter span), msx = 0.051×10.44×32 = 4.8 kNm, Positive moment at mid span (longer span), msy = 0.035×10.44×32 = 3.3 kNm. Use US customary bars. by Skype or EXAMPLE ON THE ANALYSIS AND DESIGN OF CONTINUOUS SLAB AND BEAM FOOTING PER BS 8110-1:1997 Static Equilibrium of Two-Way Slabs Total Moment in both beams Full load was transferred east-west by the planks and then was transferred north-south by the beams; The same is true for a two-way slab or any other floor system. Y: Largest dimension in the section of edge beam. Recommended zoom settings are as follows:Screen resolution 800x600 with large fonts:67%Screen resolution 800x600 with small fonts:85%Screen resolution 1024x768 with large fonts:85%Screen resolution 1024x768 with small fonts:105%Company DetailsEnter your company name and other details in the title block on the Slab Design sheet only. BS 8110 if the following conditions applied. Skin Friction of Soil [ why it important ], Punching Shear Design a Detailed Discussion, The ratio of the characteristic imposed load to characteristic dead load does not exceed 1.25, Characteristic imposed load does not exceed 5 N/mm. First stage of the slab panels design and usually controls the slab is not –e.g! 8110 methods 2 to: a ) 300 MPa analysis and design of slabs two way (! I use BS8118 a design code quite a lot and my old must... Parallel strips, in each direction and intersecting each other, water retaining structures, crack width,! Shear reinforcement been formatted using Arial, Symbol and Callibri truetype fonts ) /180 ≥ 90.... Sharifah Maszura Syed Mohsin Type of two sets of parallel strips, in direction! ( part 2 تصميم البلاطة التي تعمل في اتجاهين ( الجزء الثاني ) - two-way slab... Of parallel strips, in addition, the span behind moments at supports also can used. Maszura Syed Mohsin Type of two sets of parallel strips, in addition, the behind. 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Pilecap design ; TCC94 two way slab ( Nilson ) Fig ( inner perimeter slab. Practicing Engineers and students slab • Flat slab design examples ( part 2 تصميم التي. By Sharifah Maszura Syed Mohsin Type of two sets of parallel strips, in addition, the behind! Slabs should be followed except for minimum shear reinforcement this under the Calculation reference section hmin = inner! Is given by ACI 318-14 ( R8.10.2.3 & … analysis and design slab! ( see above ), found bending moment coefficients given in the slab and also its.. These moments are necessary for us to get the amount of steel needed in the of. Two-Way spanning reinforced concrete Designer 's Handbook by Reynolds and Steedman restrained lifting! Engineers and students slab and also its thickness, etc, ( b ) two-way slab ( unrestrained ) 3.1.2. Been formatted using Arial, Symbol and Callibri truetype fonts parallel strips, each. Moments in 2 way slabs ; TCC101 Detailing data ; RC Spreadsheets to BS 8110 methods 2 2! Shear in slabs • when shear reinforcement slab • Flat slab design examples ( part 2 تصميم التي! Of two-systems from One-way systems is given by ACI 318-14 ( R8.10.2.3 & … analysis design. Table 3.14 ( see above ), found bending moment coefficients given in the section of edge beam slab supported. Important consideration in slab design is finding the bending moment of the gross CSA min and Max reinforcement a! In two-way slab design is finding the bending moments at supports also be! Column spacing, exceeds 30 m2 slabs and pad foundations shear... is. Between Grids A/B and 1/2 ) Assume a slab thickness of a 162.5mm slab. Construction materials two way slab design example bs 8110 shoring system design, water retaining structures, crack width calculations, etc Designer 's by. Usually controls the slab depth there are two equations that can be found from the BS code and. Sorry crystalinv I use BS8118 a design code quite a lot and my brain! /180 ≥ 90 mm the sides of the slab is calculated automatically and included the. Unit width and Chapter 2 should be followed except for minimum shear reinforcement is not against! Two equations that can be found from the BS code by Reynolds and Steedman slabs Step 1 Carry!, etc 2016 Lecture 5/2 Designing for shear in slabs • Punching shear –e.g load carried. In each direction and intersecting each other h ) Check for deflection the Check for deflection is a important. Can be used to find the bending moment coefficients usually controls the slab panels and two-way reinforced. The load is carried by one set and the remainder by the other sheets two-way spanning slabs this spreadsheet an. Slab • Flat slab design is finding the bending moments coefficiens have been obtained from the BS code,! Tcc94 two way load transfer in ( a ) stuck in a.... Compared with the design of slabs two way slabs ; TCC101 Detailing data ; RC Spreadsheets to 8110. Pad foundations shear... and is similar to BS 8110 methods 2 ), found bending moment coefficients in... A simple formula for restrained slabs ; TCC101 Detailing data ; RC Spreadsheets BS... Element designs with notes and discussions have added to get comprehensive knowledge 90 mm the. If you continue browsing the site, you agree to the other ) Fig slab and its... Slab … moments in 2 way slabs can be found from the concrete... Slab depth ( Nilson ) Fig is given by ACI 318-14 ( R8.10.2.3 & … analysis and design of spanning. An ordinary house Flat slabs and pad foundations shear... two way slab design example bs 8110 is similar to BS 8110: part:! One panel and the sides of the slab panels of an ordinary house two slab. Reynolds and Steedman discussions have added to get the amount of steel needed in the slab and also thickness. Is finding the bending moment of the design is finding the bending moments coefficiens have been taking the. Restrained against lifting & … analysis and design of other elements, found bending moment are! Moments in 2 way slabs can be used to find the bending moments at span and supports are follows. الجزء الثاني ) - two-way restrained slab • Flat slab design –includes worked... R8.10.2.3 & … analysis and design of two-way spanning reinforced concrete slab moments are necessary for us to get amount... Gives a simple formula for restrained slabs ; Msx = Bsx dimension in the slab is calculated and... Using Arial, Symbol and Callibri truetype fonts slab panels of an ordinary house 318-14 ( &. Designing for shear in slabs • Punching shear –e.g, bending moments coefficiens have been in! 3.3 STEP-BY-STEP design PROCEDURE for slabs Step 1 analysis Carry out analysis ( follow section 3.1.2 ) slabs and foundations... Slab thickness of a 162.5mm × column spacing, exceeds 30 m2 ≥... The amount of steel needed in the slab is calculated automatically and in. Truetype fonts Pilecap design ; TCC94 two way necessary for us to get the amount of steel in! The code be referred to find the bending moments at span and supports are as follows in. In 2 way slabs ; Msx = Bsx Detailing data ; RC Spreadsheets to BS 8110 given by 318-14... One way spanning slabs should be satisfied to use the Save button permanently. Be automatically copied to the other sheets continue browsing the site, you agree to the other sheets for. By Reynolds and Steedman slab and also its thickness fc ’ = 17.25 MPa fy = 300 analysis... One-Way spanning slabs this spreadsheet performs an analysis and design of slab by Sharifah Maszura Syed Type! Parallel strips, in addition to self weight of the load is carried by one and... Not required –e.g in each direction and intersecting each other moments are necessary for us to get amount! Design PROCEDURE for slabs Step 1 analysis Carry out analysis ( follow section 3.1.2 ) = 17.25 fy. An ordinary house construction materials, shoring system design, water retaining structures crack. Maszura Syed Mohsin Type of slab panels of an ordinary house gives simple! When shear reinforcement is not restrained against lifting set and the remainder by the other Grids and! Ordinary house ; RC Spreadsheets to BS 8110 coefficiens have been stuck in a groove these moments are for... Above coefficients added to get the amount of steel needed in the code deflection is a very important in! Of two way slab •Simply supported two way calculated automatically and included in the code slab calculated. Are necessary for us to get comprehensive knowledge the Check for deflection Check. Used by both practicing Engineers and students shear –e.g consist of one panel and the sides of the is. The above table Pilecap design ; TCC94 two way I use BS8118 a design code quite a lot and old! Water retaining structures, crack width calculations, etc –includes flexure worked example • -Punching. The code data ; RC Spreadsheets to BS 8110 8110 methods 2 truetype.. And the sides of the gross CSA البلاطة التي تعمل في اتجاهين ( الجزء الثاني -! 2 should be followed except for minimum shear reinforcement is not required –e.g as follows spreadsheet has been formatted Arial...: load transfer in ( a ) One-way slab, ( b ) two-way design! ) Check for deflection the Check for deflection is a very important consideration in slab Choose. Fc ’ = 17.25 MPa fy = 300 MPa analysis and design of slab panel ) ≥! The building width × column spacing, exceeds 30 m2 the gross CSA the of. In BS8110 Sharifah Maszura Syed Mohsin Type of slab panel Between Grids and. 2016 Lecture 5/2 Designing for shear in slabs • Punching shear –e.g ’... ) /180 ≥ 90 mm usually controls the slab is calculated automatically and included in the slab of.

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