Simplified slab analysis bs 8110 allows for a simplified load arrangement for all slabs. Detailing to bs 8110 building technology art media. Nov 05, 2019 slab design is comparatively easy when compared with the design of other elements. Flat slab analysis and design pdf flat slab design pdf 1. Sep 02, 2011 design of reinforced concrete beams 45 m modular ratio the graphs in fig. These materials are originally located at different websites.
Find the following parameters for design moments in step 2 per unit width step 4 note. The introduction and application of this code is a significant event in civil engineering, so this chapter will look closely on british standard and eurocode 2 and also its applications. Reliability based design of twoway slab in comparison with. Design of reinforced concrete structures ii two way slabs 1 1. Structural engineers and uses the format of the green book manualfor bs 8110. The following example illustrates the example building. Oneway and twoway slabs university of asia pacific. A civil engineer should study these lectures and materials for structural engineering acumen. The reinforcement parallel to the shorter dimensions are designed first. Jul 10, 2017 designing a 2 way slab with bs8110 has never been easy, infact ill love to state here that bs8110 is quite old fashioned as far as design is concerned but its your question anyways so the answer you need could be found in this blog building cont. Member design reinforced concrete one way spanning slab. Shear force coefficients for restrained twoway slab ref.
Bs 8110 1997 requirements for twoway solid slab section 3. Lecture series on design of reinforced concrete structures by prof. This condition occur when the slabs are connected monolithically with support. This chapter discusses on the history and development of british standard bs 8110. This can be used in conjunction with a structural analysis program such as our slab analysis tool. Two way design slab to bs 8110 building engineering. They may be supported on two opposite sides only fig. In two way slabs shorter direction strip carry greater %age of load. Twoway restrained slab if the slabs consist more than one panel or corner of the slab are prevent against lifting it is define as twoway restrained slab. One way and two way slabs one way slabs transfer the imposed loads in one direction only. Analysis and design of slabs two way civil engineers pk. Where reinforce ment quantities are not known, an assumption may be made of the per centage of reinforcement.
Design of reinforced concrete structures ii twoway slabs. Sachpazis date 18012014 chkd by date appd by 1 flat slab design to bs8110. Reference design calculations output design of slab panel between grids ab and 12 assume a slab thickness of a 162. The program covers wide range of two way slab systems and can be used for more complex slab layouts. Twoway slab design to bs 8110 civil engineering community. Member design reinforced concrete two way spanning slab. Flat plate concrete floor system does not use beams between columns or. Reinforced concrete design to bs8110 structural design 1. Mar 09, 2015 member design reinforced concrete one way spanning slab bs8110 v2015. Bending moments coefficiens have been taking from the bs code. Reinforced concrete design to bs8110 structural design 1 lesson 5 1 lesson 5.
The first stage of the design is finding the bending moment of the slab panels. The equations for the analysis have been obtained from the reinforced concrete designers handbook by reynolds and steedman. 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. Here, we have tried to gather various reading materials available in the web about flat slab floor system in one place. Examples design reinforced concrete buildings bs8110 pdf. As with the green book the scope of the manualcovers the majority of concrete building structures and has now been extended to cover slender columns and prestressed concrete. Manual for the design of reinforced concrete building. Manual for design and detailings of reinforced concrete to code of practice for structural use of concrete 2004 housing department may 2008 version 2. The ratio for a two way spanning slab should be based on the shorter span. Member design reinforced concrete two way spanning slab bs8110 v2015. Manual for design and detailings of reinforced concrete to. Bs 8110 details how deflections and the accompanying crack widths may be. If you continue browsing the site, you agree to the use of cookies on this website. Apr 18, 2019 this spreadsheet performs an analysis and design of twoway spanning reinforced concrete slab.
The elements can be triangular, rectangular or quadrilateral. Maximum ultimate design load is applied throughout all spans or panels. Two way slabs have two way bending unlike one way slab. Bending will take place in the two directions in a dishlike fo. Jul 02, 2010 lecture series on design of reinforced concrete structures by prof. Sep 03, 2011 reinforced concrete sk 33 section through slab showing stress due to moment. This spreadsheet performs an analysis and design of two way spanning reinforced concrete slab. The output of the program for the slab in the example is shown in the following pages. Easy to use software becoming more widely available very accurate if used properly better than grillage. Two way slab design spreadsheet the engineering community. Structural use of concrete agensi pekerjaan crc recruits.
The slab is represented by a mesh of slab segments called elements joined to each other at nodes. Flat slab analysis, design and detailing pdf civil engineering. A two way spanning slab is a slab with reinforcement in both directions. Two way flat plate concrete floor system analysis and design the concrete floor slab system shown below is for an intermediate floor to be designed considering partition weight 20 psf, and unfactored live load 40 psf. The pca computer program pcaslab can be used to expedite the design of different slab systems. The simplified analysis is subject to 3 conditions. How to design a 2way spanning slab, using bs8110 quora. Jul 28, 20 this spreadsheet performs an analysis and design of two way spanning reinforced concrete slab. The design bending moment of twoway restrained slab can be calculated as follows. Mar, 20 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. Contents 2 reinforced concrete retaining wall with sloped embankment to bs 4 gravity masonry stepped retaining wall with reinforced concrete base to ec 6 basement cavity filled masonry propped retaining wall ec the ecp 2032011, aci 31808, bs 8110. According to the way loads are transferred to supporting beams and columns, slabs are classified into two types. Slabs are usually used in floor and roof construction. Slab design is comparatively easy when compared with the design of other elements.
How to design concrete structures using eurocode 2, the concrete centre, 2010 figure 2. Jul 05, 2019 column analysis and design to bs 8110. Min and max reinforcement as a percentage of the gross csa. Reinforced concrete design to bs8110 structural design 1 lesson 5 6 4.
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