This assumes that the slab thickness has previously been determined during conceptual design. Keywords rc flat slab, direct design method ddm, equivalent. The following limitations apply to the slab system. Oneway simply supported slab analysis and design of the slab similar to design of simply supported beam as indicate in the previous chapter. To study the seismic performance of flat slab buildings, designed for different codes, two sets of buildings, 5 storey and 10 storey tall, with identical plan shown in figure 2 have been considered.
Hi everyone, this video is all about the design of flat slab part1 as per is 456 2000 in hindi. Flat slab types of flat slab design and its advantages. Flat slab system is an important division of concrete floor system. In this video deisgn of two way slabs has been covered using is 456. Reinforced concrete slab design and detailing guidelines for depth of slab, loads on slab, reinforcement guide for oneway and twoway slabs as per is 456. Reinforced concrete slab design and detailing guide is456. Reinforced flat slab design excel sheet best online. Download file pdf flat slab manual design bs flat slab manual design bs flat slab design example part 1 how to design a flat slab, step by step explained in this video. A civil engineer must know all the aspects regarding the flat floor system. We can take the effective span and we shall get it in clause 22. Usually balcony slabs are cantilever slab and hence a provision for wall load at free end is included so that the spread sheet is useful for practical purposes. Calculate aspect ratio aspect ratio 2 longer spanshorter span 2. Bending will take place in the two directions in a dishlike form.
The investigation shows that, the weight of flat slab. Plzsubscribe this video deals with the basic of flat slab and the clauses of is 456 2000. Department of mechanics, materials and structures english. Section 3 general design consideration 18 bases rlr design 18. The study examines the performance of flat slab with shear walls in multistorey buildings. Reinforced concrete design 1 design of slab examples. Flatslab construction has been widely used in construction today because of many advantages that it offers. A procedure for carrying out the detailed design of flat slabs is shown in table 1 below. A flat slab is a reinforced concrete slab supported directly by concrete columns without the use of beams. Analysis and design of slabs two way civil engineers pk.
Plain and reinforced concrete code of practice ced 2. Design of reinforced concrete structures ii twoway slabs 1 1. There must be at least 3 continuous spans in each direction viz column strip, middle strip, column strip the panels should be rectangular and the ratio of longer. Oneway and twoway slabs university of asia pacific. Here, we have tried to gather various reading materials available in the web about flat slab floor system in one place. Design considerations for reinforced concrete flat slab. A civil engineer should have clear and concise ideas on all the features of the flat floor system. Beside this, due to shear problems at column heads, the thickness of flat slab is greater.
Design of reinforced concrete structures ii twoway slabs. For 1m slab width, moment, shear force, oneway continuous slab for continuous slab, moment and shear force can be obtained from table 3. And this is your lecture number 14, design of slabs part 1. Guide to the design and construction of reinforced. Also explore the seminar topics paper on flat slab with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year civil engineering ce or ieee civil construction btech, be, mtech students for the year 2015 2016. Flat slab analysis, design and detailing pdf civil. Flat slab sized for punching shear and deflection additional reinforcement added to span steel to reduce deflections typically 25% extra on a 7.
Ppt design and comparison of flat slab using is 456 2000 free download as powerpoint presentation. Slabs and flat slabs lecture 5 19 th october 2016 contents lecture 5 designing for shear in slabs including punching shear detailing solid slabs flat slab design includes flexure worked example exercise punching shear. This is your beam column, so this is your, we can design it as i said flat slab. Analysis and design of flat slab with and without shear. Design considerations for reinforced concrete flat slab floor system harshal deshpande1, radhika joshi2. Helpcontentsgraphical interface helpadvanced slab design mode elsewhere in this forum, you will find numerous discussions on designing slabs using ram concept. Design of slab examples and tutorials by sharifah maszura syed mohsin example 1. Mar 1, 2017 reinforced flat slab design excel sheet best online engineering resource.
Feasibility of structural design of members has been ensured under the provision of is. Flat plate with spandrel beams and flat slab two way beams supported slab. This spread sheets is useful for design of cantilever slab as per is 456. Calculation of approximate depth from deflection criteria cl 23. Flat slab is defined as one sided or twosided support system with sheer load of the slab being concentrated on the supporting columns and a square slab called drop panels. Twoway 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. These materials are originally located at different websites. Pro model is exported to ram concept and the design of that slab is done by ram concept. Flat slab system is a vital part of concrete floor system.
Flat slab analysis, design and detailing pdf civil engineering. Must watch basics of flat slab for better understanding from the link. They may be supported on two opposite sides only fig. Page 14 example1 try5 9242008 flat slab analysis and design job. Analysis and design of flat slab with and without shear wall international organization of scientific research 35 p a g e discussions. Dhang department of civil engineering indian institute of technology kharagpur lecture 14 design of slabs today, we shall start design of slabs. Design procedure of twoway slabs using aci moment coefficients. Simply supported one way slab a rectangular reinforced concrete slab is simplysupported on two masonry walls 250 mm thick and 3. Concept designs prepared assuming detailed design would be to bs 8110 may be continued through to detailed design using eurocode 2. This pdf file contains a chapter of 23 pages with various aspects of flat slabs including four example of flat slab design. Flat slab seminar report, ppt, pdf for civil engineering. Explore flat slab with free download of seminar report and ppt in pdf and doc format. The slab has to carry a distributed permanent action of 1.
The basic philosophy in the design of flat slab is to consider only gravity forces. Flat slab types of flat slab design and its advantages flat slab is a reinforced concrete slab supported directly by concrete columns without the use of beams. The waffle slab has been considered as monolithically connected to band beams. The best flat slab analysis, design and detailing related pdf and slides are provided here altogether.
The design is carried out as per is 456 2000 and for reinforcement detailing sp 34 is used. Twoway slabs have two way bending unlike oneway slab. What should be the design procedure for designing a flat. Pdf flat slabs are highly versatile elements widely used in construction. Slab resting on walls or sufficiently deep and rigid beams on all sides. Following are the rcc slab design and detailing guidelines. Please read the lauses mentioned in the video while solving the problem.
Oneway and twoway slabs oneway slabs transfer the imposed loads in one direction only. Flat slab common practice of design and construction is to support the slabs by beams and support the beams by columns. So, we have a few more lecturers, so today we shall start part 1. The beams reduce the available net clear ceiling height.
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