The benefits of choosing flat slabs include a minimum depth solution, speed of construction, flexibility in the plan layout both in terms of the shape and column layout, a flat soffit clean finishes and freedom of layout of services and scope and. Two way rcc slab designing excel sheet civil engineering. How to design a flat slab, step by step explained in this video. Pdf analysis of flat slab by matlab coding researchgate. One of the biggest advantages for a twoway flat slab compared to oneway slabs or twoway slabs that transfer load to beams and girders is that floortofloor heights are generally smaller for flat slabs. Mar 1, 2017 reinforced flat slab design excel sheet best online engineering resource.
Oneway simply supported slab analysis and design of the slab similar to design of simply supported beam as indicate in the previous chapter. The strip may have up to 20 spans and may have cantilevers at the ends. 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. Flat slabs design is appropriate for most floor situations and is also suitable for irregular column layouts, curved floor shapes, ramps etc. The present study focuses on posttensioned flat slab systems with respect.
A civil engineer must know all the aspects regarding the flat floor system. Generally slab thickness varies between 4 to 20 inches where as its length and width varies between 10 to. Trimble is an international company focusing on positioningrelated technology for different industries. Select rating give flat slab design 15 give flat slab design 25 give flat slab design 35 give flat slab design 45 give flat slab design 55 cancel rating. Jul 02, 2010 lecture series on design of reinforced concrete structures by prof. For many years, ciria report 110 has been the standard document for the design of reinforced concrete flat slabs. Flat slab and grid slab has been analyzed by staad pro. Firstly, one has to check if the design shear force v d is smaller than the maximum punching strength v rd,max. A flat slab is a reinforced concrete slab supported directly by concrete columns without the use of beams. Aug 06, 2018 details name design of slab as per is. Over that time analysis methods have changed and new construction methods have been developed. The benefits of choosing flat slabs include a minimum depth solution, speed of construction, flexibility in the plan layout both in terms of the shape and column layout, a. Flat slab is a reinforced concrete slab supported directly by concrete columns without the use of beams. Flat slab seminar report, ppt, pdf for civil engineering.
Beside this, due to shear problems at column heads, the thickness of flat slab is greater. Get flat slab analysis and design alternative downloads. Flat slab types of flat slab design and its advantages. Lecture series on design of reinforced concrete structures by prof. Plzsubscribe this video deals with the basic of flat slab and the clauses of is 456 2000. Drop panels play a significant role here as they augment the. Flat slab analysis and design designs beamless concrete slab floors flat slab or waffle slab in accordance with aci 318. Analysis and design of flat slabs using various codes issuu. This spread sheets is useful for design of cantilever slab as per is 456. Flatslab construction has been widely used in construction today because of many advantages that it offers. This spreadsheet performs an analysis and design of twoway spanning reinforced concrete slab.
Design methodology design methodology simplified method table 3. 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. 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. Bending will take place in the two directions in a dishlike form. Generally, the concrete slab thickness varies from 100 mm to 500 mm. Flat slabs are considered to be faster and more economic than other forms of construction, as partition heads do not need to be cut around downstand beams or ribs. Flexible pavement design, calculator, sn, aashto design, structural number. Punching of flat slabs design for shear at the column heads. Reinforced flat slab design excel sheet best online. Hi everyone, this video is all about the design of flat slab part1 as per is 4562000 in hindi. Flat slab analysis and design free version download for pc. Sep 16, 2015 this spread sheets is useful for design of cantilever slab as per is 456. 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. In modern buildings, it is generally made of concrete.
Flat slabs are specifically created for most of the construction and for asymmetrical column layouts like floors containing curved shapes and ramps etc. Citeseerx analysis and design of flat slab and grid slab. Citeseerx evaluation of punching shear in flat slabs. Analysis of the flat slab and grid slab has been done both manually by is 456 2000 and by using software also. Flat slab design tekla structural designer user assistance. The length and width of slab is much higher than that of its thickness. Flat slabs may have drop panels at columns and columns may have capitals. Flat slabs concrete columns reinforced flat slab design. A slab is widened structural member that carries superimposed load over it. Flat slabs are particularly appropriate for areas where tops of partitions need to be sealed to the slab soffit for acoustic or fire reasons. Dhang, department of civil engineering, iit kharagpur. Flat slab design spreadsheets to eurocode excel sheets. Two way rcc slab designing tool in microsoft excel developed by shankar tayal a 3rd year student of school of infrastructure, indian institute of technology, bhubaneswar. Effective span of slab shall be lesser of the two 1.
The design shear force v d is below the maximum punching strength v rd,max. Here, we have tried to gather various reading materials available in the web about flat slab floor system in one place. Flat slab construction has been widely used in construction today because of many advantages that it offers. Two way slab design spreadsheet the engineering community. For 1m slab width, moment, shear force, oneway continuous slab for continuous slab, moment and shear force can be obtained from table 3. Excel sheet to design slab one way and two way all. The basic philosophy in the design of flat slab is to consider only gravity forces. Analyze and design flat slab or waffle slab floors. Sep 27, 2017 flat slabs design is appropriate for most floor situations and is also suitable for irregular column layouts, curved floor shapes, ramps etc. Analysis and design of slabs two way civil engineers pk. Two way slab design excel sheet all about free books.
Ppt design and comparison of flat slab using is 456 2000 free download as powerpoint presentation. Analysis and design of flat slabs using various codes. Analyses are for a onebaywide strip using the equivalent frame analysis method of the aci code. Trusted windows pc download flat slab analysis and design 2. Hi everyone, this video is all about the design of flat slab part1 as per is 456 2000 in hindi. In twoway slabs shorter direction strip carry greater %age of load.
Different types of shear reinforcement used at column heads. These materials are originally located at different websites. Punching of flat slabs design for shear at th e column heads 12. Therefore, the slab can be reinforced with shear reinforcement complying with detailing rules defined in subclause 7. Slab resting on walls or sufficiently deep and rigid beams on all sides. L center to center distance between the support b depth of slab. Two way rcc slab designing tool in microsoft excel developed by shankar tayal a 3rd year student of school of infrastructure, indian institute of technology, bhubaneswar this is a part of his project economic design of two way rcc slabs under prof s. Powered by the equivalent frame method of analysis and design per latest american aci 31814 and canadian csa a23. The flexibility of flat slab construction can lead to high economy and yet allow the architect great freedom of form. Twoway slabs have two way bending unlike oneway slab. The linkstudpsr system comprises short lengths of carbon steel deformed bar. Keywords rc flat slab, direct design method ddm, equivalent. Flat slab analysis, design and detailing pdf civil engineering.
Accordingly, main reinforcement is required in the two directions. Flat slab can be described as one sided or twosided support system where sheer load of the slab is accumulated on the supporting columns and a square slab known as drop panels. R it is observed that the flat slab with drop is more economical than flat slab without drop and grid slabs. Matlab file, matlab function, truss analysis, plane truss, visualization, view all files of finite elements method. Citeseerx document details isaac councill, lee giles, pradeep teregowda. This is a part of his project economic design of two way rcc slabs under prof s.
Analysis of the flat slab and grid slab has been done both manually by is 4562000 and by using software also. The analysis and design follow the equivalent frame analysis method of the aci code, which considers a onebay wide strip of the floor system as a continuous frame. Bm and sf coefficients for flat slab or 3 or more equal spans outer support. The best flat slab analysis, design and detailing related pdf and slides are provided here altogether.
Explore flat slab with free download of seminar report and ppt in pdf and doc format. These slabs do not have beams but have drop panels or column capitals. Design of reinforced concrete structures ii twoway slabs 1 1. Department of mechanics, materials and structures english. Flat slab analysis, design and detailing pdf civil. Design of reinforced concrete structures ii twoway slabs.
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