Manual for design and detailing of reinforced concrete to the. The following sections outline the solution per ddm, efm, and spslab software respectively. The reinforcement areas are calculated automatically from the strap finite element analysis results. Slab supported straightforwardly through columns are known as flat slab. Flat slab analysis, design and detailing pdf civil engineering.
Drops should be ignored if the smaller dimension of the drop is less than onethird of the smaller dimension of the panel. Pdf design and detailing of flat slab art seel academia. Flat slabs are slabs that are supported directly by columns without floor beams. Design flat plate slab in etabs and detailing in autocad. A flat slab is usually a pointsupported joistfree plate. Here, we have tried to gather various reading materials available in the web about flat slab floor system in one place. Stud rails is needed in construction to reinforce a flat slab against punching shear and is located around a column head or base. Inducta software now includes the latest version of australian standards for design of concrete structures. Slab supported on 2 sides and bending happens primarily in 1 direction particularly is known as one way slab. Details title design and detailing of flat slab with drop panel in etabs duration 30 mins language english format mp4 size 110 mb download method direct. While our company may be relatively new, our products have been in the industry for more than 20 years.
As point supports of the flat slab, columns are used. Finite element fe analysis, is a popular powerful computer method of analysing flat slab concrete structures. How to form, pour, and stamp a concrete patio slab duration. Design of flat slab with drop panel in etabs tutorial detailing of. Reinforced concrete slab and beam design software adaptrc. The program calculates and details the slab reinforcement, either as an arrangement of individual bars, a pattern of prefabricated meshes, or a combination of both. References 1 sanjay p n, behavior of flat slab rcc structure under earthquake loading 2014. Modelling a flatslab structure using fem software is simple at first glance. Slab supported directly by columns are called flat slab. Effective span of slab shall be lesser of the two 1. 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. Drawing labels, details, and other text information extracted from the cad file translated from galician.
Specialist geotechnical modules allow our software to model soil as springs, with spring stiffness. From assembly plant, the construction system of the flat slab of a commercial project is detailed. Using various software for the accurate detailing with best time utilization for different building elements like columns, beams, plinths, docks, regular and special geometry of staircase, slabs, double tees, inverted tee beams, solid wall panels, sandwich and. Flat slab system is an important division of concrete floor system. In your search for flat slab design software for structural engineer firms, you should take a look at the products offered by digital canal. Flat slab structures are the best solution for high rise. Pdf design and detailing of flat slab content vijay prem.
A software has been developed with design procedures based on bs 8110 and eurocode 2, which is the design of concrete slabs. There are many advantages of flat slab such as increased head room, easier flow of mechanical and electrical services. Alternatively, while slab is supported on all 4 sides and bending happen in 2 directions are declared to be two way slab. 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. Reinforcement detailing of reinforced cement concrete slabs. Design and detailing of rectangular flat slab panels. Manual for design and detailing of reinforced concrete to september 20 the code of practice for structural use of concrete 20 contents 1. What is the best way to detail a flat slab, especially if you have bars that are alternating or autodesk ductname. Scada pro flat slab module for analysis and design is an advanced finite. Twoway concrete slab with beams spanning between supports. Reinforced concrete modeling and detailing software. The flexibility of flat slab construction can lead to high economy and yet allow the architect great freedom of form. Flat slab types of flat slab design and its advantages. The rest of the floor can be slightly thinner with less dead weight.
Flat slab design software programs for structural engineering. V slab variable depth slab bridge design is a structural analysis and design software package developed for reinforced concrete flat or haunched slab bridges under the american association of state highway and transportation officials aashto lrfd bridge design specifications, 8th. Quickly and easily specify concrete section dimensions, concrete and steel reinforcing strengths, concrete cover, reinforcement bar type, units and design codes and reinforcing bar type within a single dialog box. Nov 20, 2014 openingsanalysis analysis of flat slab for all other cases of openings, it should be framed on all sides with beams to carry the loads to the columns. Flat slab analysis and design free version download for pc.
Sandwich slabs may have the disadvantage of a larger weight compared to the ribbed ones but on the other hand, they have the advantage that their spans and supports behave in the same proper way. For the purpose of this article, we will base our design basis on a strip based. Reinforced flat slab design excel sheet best online. 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.
Reinforced concrete modeling and detailing software with proconcrete software you can model reinforced concrete with any combination of reinforcing, as 3d parametric objects. Apr 25, 2019 22 slabs flat slabs 2016 page 025 duration. Drop panels play a significant role here as they augment the overall capacity and sturdiness of the flooring system beneath the vertical loads thereby boosting cost effectiveness of the construction. Literally, it is defined as a longitudinal cut in the slab during the concrete pouring process. Flat slabs can offer economical solutions to wider floor spans in a reinforced concrete building.
Flat slab detail dwg detail for autocad designs cad. Cross sections of twoway concrete floor at the slab edge. Sconcrete basic is a concrete design and detailing plugin for adapt builder easily define concrete sections. Stud rails design system consists of a number of stud and rail units and each unit consists of doubleheaded studs, hot forged to three times the diameter of the bar which is welded to a flat steel carrier rail. Slab detailing the program calculates and details the slab reinforcement, either as an arrangement of individual bars, a pattern of prefabricated meshes, or a combination of both. Flat slab detail dwg full project for autocad designs cad. Design and detailing of flat slab with drop panel in etabs. Easily export and analyse floors in ptd with auto tendons. L center to center distance between the support b depth of slab. Quickly create your placing drawings, fabrication details, bar bending schedules, and concrete quantity and material reports directly from your 3d model, which. Review paper on behavior of flat slab under dynamic loading. Design and detailing for bending moment i division of panels and bending moments flat slab panels are divided into column strips and middle strips as shown in figure 1.
Flat slab structure leads to economic saving, aesthetic view and yet allow the architect from great freedom of form works as compared to conventional slab structure. These materials are originally located at different websites. This is further explained in a companion best practice guide, rationalisation of flat slab reinforcement. However, one of the particularities that comes first when designing. I came across a way of detailing reinforcement bar for flat slabs. This article describes how a flat slab is generated as 2d model in rfem and the loading is applied according to eurocode 1. V slab variable depth slab bridge design is a structural analysis and design software package developed for reinforced concrete flat or haunched slab bridges under the american association of state highway and transportation officials aashto lrfd bridge design specifications, 8th edition. The column tends to punch through the slab in flat slabs, which can be treated by three methods. For many years, ciria report 110 has been the standard document for the design of reinforced concrete flat slabs. You can use either of the three depending on your convenience. Necessary checking such as deflection and crack control is also calculated by the software which helps to improve the accuracy of the design. Direct design method ddm twoway slabs satisfying the limits in aci 31814 8. Flat slab may be analyzed and desig ned by any me thod as long as they satisfy the strength, stiffness an d sta bility requirements of the is.
Flat slab construction is stateoftheart structural software for the analysis and design of single and multistorey flat slabs in. Design manual to bs8110 bs8110 design preface please note that the linkstudpsr design and optimum pattern layout details can be calculated very simply, by using the free linkstudpsr design software available later in 2010 with the minimum of input. Design and detailing of flat slabs linkedin slideshare. Reinforcement detailing of a slab is done based on its support conditions. How to design reinforced concrete flat slabs using finite. Twoway concrete floor slab with beams design and detailing design the slab system shown in figure 1 for an intermediate floor where the story height 12 ft, column crosssectional dimensions 18 in.
Flat slab analysis, design and detailing pdf civil. Sandwich slab reinforcement details in reality, sandwich slabs are ribbed slabs with a slab placed both to their upper and lower surface. Suspended slabs can include flat, twoway, waffle, and ribbed framing systems. Slab supported on two sides and bending takes place predominantly in one direction only is called one way slab. 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. This is usually done in wide span areas of the slab being constructed by dividing the whole slab to a series of pour areas and it is intentionally applied to accommodate the easement of construction. Oneway wide module joist slab in the lower middle is a variation on the oneway. The benefits of using insitu concrete flat slab construction should be investigated at the conceptual design stage. I am troubled by folded slab ie a step down in flat slab.
Details title design flat plate slab in etabs and detailing in autocad duration 25 mins language english format mp4 size 180 mb download method direct. Models can have columns, braces, walls, and ramps connected from the floors. Hi i am detailing a slab in revit for the first time. In the show rebar intensity, the recommended area of rebar. Availability of this program was discontinued in 2008. Over that time analysis methods have changed and new construction methods have been developed. Reinforcement detailing of reinforced concrete slabs. It is termination on slab during the concreting works. Slab may be supported on walls or beams or columns. This is significantly more cost effective than the results seen when traditional slab rc detailing is completed in accordance with the simple methods made available as a manual option in design codes. The moment m d is the vector addition of the moments in x and ydirection. This publication seeks to introduce fe methods, explain how concrete can be successfully modelled and how to interpret the results. In the required layout, the rails are located around.
Nov 25, 2018 hi i am detailing a slab in revit for the first time. 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. This revit tutorial video shows how to create reinforcement detailing in revit with the help of sofistik. They are also used where uses of beams are not required. Flat slab reinforcement detail structural engineering. Design of flat slab structures advance design graitec. From the slab design form, there are three types of reinforcing display available. Powered by the equivalent frame method of analysis and design per latest american aci 31814 and canadian csa a23.
Flat slabs are mostly used in large industrial structures, parking garages, ramps, warehouse, high rise buildings and hotels. The calculation done by the software was compared to manual calculation to ensure. The four corners of the slab panel are supported, e. This system is similar to the twoway flat plate system except there is a drop panel to provide extra thickness around the columns. I have seen in the ram modelling, the reinforcement of the step down section looks like a beam with top slab on oner side and bottom slab on the opposite is the same the slabs on both sides ie. Input uniformly distributed loads independent of slab geometry. Design manual to bs8110 bs8110 general detailing rules. Which is the best automatic structural detailing software. Flat slab analysis, design and detailing pdf flat slab system is an important division of concrete floor system. Flat slab analysis and design designs beamless concrete slab floors flat slab or waffle slab in accordance with aci 318. Structural design of flat slabs to eurocode 2 structville. Safes ageadjusted modulus of elasticity method for flat plate slab analysis was found to be more accurate than other software when compared to actual deflections. The step down or drop can exceed the a couple of times the thickness of the flat slab.
Mar 24, 2014 design and detailing for bending moment i division of panels and bending moments flat slab panels are divided into column strips and middle strips as shown in figure 1. The benefits associated with flat slab construction may well outweigh those of other structural solutions, which could be more complicated, timeconsuming and ultimately more costly. For the analysis, a linearelastic model has been used. Mar 1, 2017 reinforced flat slab design excel sheet best online engineering resource. Flat slab types, uses, advantages and disadvantages. Reinforced concrete slab and beam design software adaptrc 2017 product overview an easytouse and learn software for the design, analysis, and investigation of reinforced nonprestressed concrete beams, beam frames, slabs and floor systems a must have production tool in every structural engineering office. Modeling and bending design of pointsupported flat slab dlubal. Perform a quick and accurate preliminary design check considering tendons. Anchorage and lap splicing detailing of slabs, columns, beams. However, there are some pitfalls to avoid, that often catch out the unwary. A tendon is defined as sheathing duct, the strands within it and the corrosion inhibiting grease or grout filling its voids. Using a drop panel and a column capital in flat slab. Show rebar intensity, show total rebar area for strip and show number of bar of size. 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.
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