The benefits of using flat slab construction are becoming increasingly recognized. Effect of point loads on reinforced concrete slabs without. If it isnt native, you may have to embed or distribute the font along with the word file, powerpoint presentation, or excel. For joist depth determination, waffle slabs are considered as flat slab aci. Flat slab design on software civildigital civil engineering articles concrete flat slab floors for construction efficiency advantages to client flat slab design on software. You can consider it as beam with breadth more than 1m directly resting on column. Bending will take place in the two directions in a dishlike form. Ppt design and comparison of flat slab using is 456 2000 free download as powerpoint presentation. Design an exterior panel of a flat slab floor system of size 24m x 24m, divided into panels 6m x 6m size. Jul 18, 2014 civildigital powerpoint presentations building technology flat slab floor system.
A flat slab is a oneway or twoway system with thickenings in the slab at the columns and loadbearing walls called drop panels figure 9. In geology, a slab window is a gap that forms in a subducted oceanic plate when a midocean ridge meets with a subduction zone and plate divergence at the ridge and convergence at the subduction zone continue, causing the ridge to be subducted. Sachpazis date 18012014 chkd by date appd by 4 internal column c3 consider the reinforcement concentrated in half width strip over the support depth of reinforcement. Flat design templates for powerpoint presentation process. The flat designs use simple, light symbols that illustrate presentation slides in an easy way, without being overwhelming. The elements can be triangular, rectangular or quadrilateral. Flat slabs are highly versatile elements widely used in construction, providing minimum depth, fast construction and allowing flexible column grids.
How to build and setup a concrete foundation for garages, houses, room additions, etc part 1 duration. Flat slab system is an important division of concrete floor system. Download from so many useful civil engineering files for free. The designs are conceptualized by employing appropriate software but the fact is. Slab is one of the most famous part of a construction project. Flat slab construction definition is reinforcedconcrete floor construction not requiring beams and girders to transmit the floor load to supporting columns. Style neutral presentation graphics in modern flat graphical style also called metro ui style, introduced by new windows 8 and ios 9 application style. Lintels are provided inside building above the doors and windows to re direct the top load. Reinforced concrete design limit state by varghese p. Beside this, due to shear problems at column heads, the thickness of flat slab. Additional flat slabs ppt pdf selection able2extract pdf converter able2extract professional lets windows, linux, and mac users convert data in scanned or native adobe pdf to excel, word, publisher, powerpoint, openoffice, autocad, html, csv and text. Advantages and disadvantages of flat slabs advantages and disadvantages of flat slabs a flat slab is a oneway or twoway system with thickenings in the slab at the columns and load bearing walls called drop panels figure 9. Design all columns in a building with the click of a button. For economical design of similar structures a smaller slab thickness leading to values between 60% to 80% of balanced selfweight is generally selected.
Terras the study of shear transfer in reinforced concrete slabs without transverse reinforcement has begun since the development of this material. Civildigital powerpoint presentations building technology flat slab floor system. Seminar report and ppt flat slab called beamless slab is a slab supported directly by columns without beams. Then, analysis will be carried out on a typical flat slab panel base on each design approach. Design considerations for reinforced concrete flat slab floor system harshal deshpande1, radhika joshi2. Flat slab seminar report, ppt, pdf for civil engineering. Technical specifications flat slab analysis and design designs beamless concrete slab floors flat slab or waffle slab in accordance with aci 318. Design of reinforced concrete structures ii twoway slabs 1 1.
We designed these icons and shape to fit various formal presentations. For spans from 5 to 9 m, thin flat slabs are the preferred solution for the construction of insitu concrete frame buildings where a square or nearsquare grid is used. This design is a complete flat plate slab design, from shear to bending along with design of columns and shear head reinforcement. Cover your bases with flat slab analysis design flat slab software. Using a drop panel and a column capital in flat slab. For spans over 9 m posttensioning should be considered. Eliminating drops results in simpler falsework and formwork arrangements. Flat slab design spreadsheet civil engineering downloads. Introduction to flat slabs modelling of reinforced concrete.
Design of flat slab with edge beams by direct design method 16 14 14 3 b c 1 c 2 c 3 c 4 3 1 c 5 c. The summaries of findings from the above data presentation are as follows. Analysis of flat sanalysis of flat sllabab moment division example 6000 6000 6000 6000 6000 5000 layout of building 7000 5000 a floor slab in a building where stability is provided by shear walls in one direction ns. Slabs is a program that can be used by structural engineers to perform a static analysis and design of reinforced concrete slab systems of any shape, including suspended slabs and slabsonground. The slab is represented by a mesh of slab segments called elements joined to each other at nodes. Design considerations for reinforced concrete flat slab floor. The column tends to punch through the slab in flat slabs, which can be treated by three methods. Founded in 1904 and headquartered in farmington hills, michigan, usa, the american concrete institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensusbased standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design. Introduction currently the flat slab system is widely used in construction because of architectural. Get flat slab analysis and design alternative downloads.
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. The design i am going to share with you today is design of flat plate slab as by definition. Export and analyse several floors in slb and ptd simultaneously. An introduction to specifying posttensioned slabs, an article extracted from concrete quarterly, spring 2020. Air quality dispersion modeling alternative models. Create simply beautiful presentations for sharing onlne. Flat slab is a reinforced concrete slab supported directly by concrete columns without use beams. Inducta engineering concrete buildings design software.
Beside this, due to shear problems at column heads, the thickness of flat slab is greater. Civil engineering spreadsheets, civil engineering ebooks and many more civil engineering downloads. The flat slab is a twoway reinforced concrete slab that usually does not have beams and girders, and the loads are transferred directly to the supporting concrete columns the column tends to punch through the slab in flat slabs, which can be treated by three methods using a drop panel and a column capital in flat slab. In this article, ill give a detailed explanation of each slab where to use particular slab. As a slab window develops, the mantle in that region becomes increasingly hot and dry. Slabs may be simply supported or continuous over one or more supports and are classified according to the method of support. Flatslab construction definition of flatslab construction. Flat slab design lessen 2 civil engineering program. Download and install custom fonts to use with office.
Thin sections allowing for greater roof heights and lighter floors. The decrease in hydration causes arc volcanism to diminish or stop entirely, as magma production in subduction zones generally results from hydration of the mantle wedge due to dewatering of the subducting slab. The thickness of equivalent flat slab is taken from table 9. Flat slab flat slab are also known as beamless slab, is a type of slab in which the flooring slab is directly supported on columns without the agency of beam or girders. Design of rcc rectangular slab s as per is 4562000 1. Jun 14, 2017 download two way slab design excel sheet template. A civil engineer must know all the aspects regarding the flat floor system. In a flat slab building, you can do a punching shear calculation based on the reaction but, in a slab. 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. Concrete flat slab design software free download concrete.
Explore flat slab with free download of seminar report and ppt in. Flat slab doesnt have beams so it is also called as beamless slab. Explore flat slab with free download of seminar report and ppt in pdf and doc format. Flat plate slab is that in which slab is directly supported on columns without column capital, drop panel or beams. Content introduction benefits design considerations design methodology analysis of flat slab detailing. Here, we have tried to gather various reading materials available in the web about flat slab floor system in one place. Section analysis and design of flat slab using etabs software conclusions as per indian code we are using cube strength but in. Calculation reference reinforced concrete design bs8110 concrete slab design created on 17 september 2012 97.
Restaurants for good pictorial view and to install artificial lighting. Some of them are outdated and many of them are frequently used everywhere. Concrete slab on grade analysis excel spreadsheet history and background of asphalt binders powerpoint presentation. Flat slab analysis design software for flat waffle slab. Nancy debora assistant professor civil karunya university 2. Flat slab analysis and design designs beamless concrete slab floors flat slab or waffle slab in accordance with aci 318. The flat slab is a twoway reinforced concrete slab that usually does not have beams and girders, and the loads are transferred directly to the supporting concrete columns. 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. Flat slab analysis, design and detailing pdf civil engineering.
Flat slab sized for punching shear and deflection additional reinforcement added to span steel to reduce deflections typically 25% extra on a 7. Formation of a slab window produces an area where the crust of the overriding plate is lacking a rigid lithospheric mantle component and thus is. Posttensioned pt slabs are typically flat slabs, band beam and slabs or ribbed slabs. Flat slab is used when column and beam in the structure is undesirable like in cinema hall when you look around there will be no beams or column. Design of reinforced concrete structures ii twoway slabs.
Flat slabs without drops thickened areas of slab around the columns to resist punching shear can be built faster because formwork is simplified and minimized, and rapid turnaround can be achieved using a combination of early striking2 and flying systems. Concrete flat slab design, free concrete flat slab design software downloads. A part of slab bounded on each of the four sides by c. Home design of structures flat slab design lessen 2. The live load on the slab is 5 knm 2 and the columns at top and bottom are at diameter 400mm. Thorkelsona, katrin breitsprecherb adepartment of earth sciences, simon fraser university, burnaby, british columbia, canada, v5a 1s6 bdepartment of earth and ocean sciences, university of british columbia, vancouver, british columbia, canada, v6t 1z4 received 8 october 2003. Reinforced concrete flat slabs are commonly used in construction as they provide a number of benefits to the designer including. Trusted windows pc download flat slab analysis and design 2. Input uniformly distributed loads independent of slab geometry. Flat slab analysis and design free version download for pc. Flexible column arrangements, this is more difficult to achieve for a beamcolumn design. Consigue flat slab analysis and design descargas alternativas.
Flat slab is a reinforced concrete slab supported directly by concrete columns without the use of beams. Comparative study of rcc flat slab and rcc beamand. Pt slabs offer the thinnest slab type, as concrete is worked to its strengths, mostly being kept in compression. 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. When a rectangular slab is supported on all the sides and the lengthtobreadth ratio is less than two, it is considered to be a twoway slab. The thickness of slab and depth of rib of waffle slab can be then computed by equalizing the moment of inertia of equivalent flat slab to that of waffle slab.
Using a drop panel without a column capital in flat. Flat slab analysis, design and detailing pdf civil. Department of mechanics, materials and structures english. What is the maximum length of the span for a flat slab. Download two way slab design excel sheet template for free. The slab is without drops and is supported internally and on the external long sides by square columns.
905 1262 1356 1215 119 1024 838 884 98 380 493 1121 1287 677 141 288 1102 236 1197 656 341 285 1082 537 569 249 1097 262 1179 1235 1065 56 1264 659 860