The reason for the stresslimiting approach to slab design is to avoid unplanned cracking. If restrained stem is selected, you may have a lateral support such as an abutting roof, slab ongrade over backfill, or tiebacks. This spreadsheet undertakes these calculations and returns design moments for use during detailed design. Restrained slabs 34 bottom unrestrained slabs 112 bottom. Composite beam design software kingspan great britain. Cantilever and restrained retaining wall design software. Beam and slab arrangement can be the best example for one way and two way slabs. This software is valid only for restrained beams carrying noncomposite precast planks or shallow steel deck floors. Design of a restrained twoway slab engineeringvaults. Put a stick on two supports which are about of 3 to 4 meters apart. Simply supported slabs restrained slabswhen a slab is supported on. Frequently the walls are also laterally restrained at the base by the slab on grade, so the shear key is seldom. The gse general structural engineering software is a fully integrated analysis and design software for structural engineering.
Csis safe software is used in the design of an 87story mixeduse tower in chicago. Cantilever and restrained retaining wall design software by soilstructure software, inc soilstructure rapid retain, version 3 is a tool for designing abutment wall, wing wall. Detailed information is available about this structural engineering software by visiting asdip retain. All programs do a thorough analysis of overall sliding and overturning stability, soil pressure, footing design, and stem design.
This structural concrete design software is based on the latest aci 318 and tms 402 provisions. The software also calculates the time to failure when the beam is unprotected. In this research, a program is coded by using microsoft small basic in order to carry out the calculations in reinforced concrete design for twoway restrained solid slab as according to eurocode 2 standards. Structural modelling and analysis of concrete floor slabs based on. It is assumed that the concrete infill does not contribute to the overall weight of the slab. Reinforced concrete slab design and detailing guidelines for depth of slab, loads on slab, reinforcement guide for oneway and twoway slabs as per is.
The software are nice and easy on all win tablet pad. It defines the future of building design software, setting the stage for. Recent enhancements etabs computers and structures, inc. 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.
Structurepoint, formerly the pca engineering software group, offers concrete design software programs updated to aci 31808 for concrete buildings, concrete structures and concrete tanks. The study was carried out for slabs with pin supports and slabs with. Analysis of longterm deflection of the slab using safe program is often confusing especially for those newbies in structural design, but thats already a few steps away of knowing. Powered by the equivalent frame method of analysis and design per latest american aci 31814 and canadian csa a23. The crosssectional area of the reinforcement above the ribs should be not less than 0. Detailed calculation steps presented for verification. Simply supported one way slab a rectangular reinforced concrete slab is simplysupported on two masonry walls 250 mm thick and 3. When a restrained retaining wall is defined, the stem tab will appear as shown below. 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 software accounts for steel, coldformed steel, concrete, automated slab design, timber, light frame wood and aluminum. Asdip concrete is a structural engineering software utilized by engineers for reinforced concrete design of members, such as biaxial columns, continuous beams, and outofplane bearing walls.
Dec, 2017 beam and slab arrangement can be the best example for one way and two way slabs. Joint free restrained slabs sfrc combined with mesh. If the first slab is a twoway slab, both the behavior and the reinforcement rules are proportionate. Posttensioned concrete design spreadsheet program a pdh. Design of slab examples and tutorials by sharifah maszura syed mohsin example 1. Reinforced concrete design 1 design of slab examples.
How to determine reinforcement design strip widths and. Structural engineering software, spreadsheets, for analysis and design, including wood, lateral analysis, concrete, steel, aluminum, glass, masonry, bridge, foundation. The gse software considers restrained warping for the torsion of thinwall. I have been using asdip structural engineering software in my profession and i find it very helpful. Chicago towers wavelike design features different shapes for every floor. This spreadsheet program provides for the design and analysis of posttensioned concrete oneway beam and slab systems and twoway flat plate slab systems. Framing dead load selfweight superrimposed dead load 25 psf partitions, me, misc. Structural design software collection structural design.
Programming for reinforced concrete design for twoway. Reinforced concrete structural software includes programs for column design pcacolumn, beam design pcabeam, slab design pcaslab, wall design pcawall, mat design pcamats, foundation design, tank design, slab ongrade design and frame analysis pcaframe. Automated bucking restrained brace brb modeling star seismic. Model slab design strips that can be used for concrete slab design, within etabs. This paper describes the computer modeling of axially restrained, oneway reinforced concrete slabs in fire conditions. It will illustrate the programs with some concrete examples. Useful rcc slab design app with clean and intuitive user interface.
The behavior and the reinforcement of a oneway slab connected to a cantilever are described below. Structural design software provides software created using microsoft windows excel 201020 or 2016 office 365. Please select the grade of concrete for twoway slab construction. Steel, coldformed steel, concrete, automated slab, timber, light framed wood. This condition occur when the slabs are connected monolithically with support. This article will guide you with easy to understand step by step on doing slabs longterm deflection analysis using the safe program. These bars are installed to sit over the mesh reinforcement, providing a fully bonded and fully restrained topping slab. On the other hand, jointed pavements slabs are detailed and designed in such a way as to limit the stresses in the slab due to restrained, temperature and shrinkage deformations to be less than the tensile capacity of the concrete, i. I hope asdip structural software can develop more software packages to assist me in my design work. A restrained slab means its ends are not free to rotate. To design a restrained twoway slab, many conditions are put into consideration.
If the edges of a concrete slab are restrained against lateral movement, internal arching develops as the slab deflects, as shown in fig. Drawings can be updated to reflect changes to the etabs model and design results, while. The combi slab solution makes it possible to design a monolithic slab, without joints, to meet tight rotation requirements from asrs supplier. You can perform reinforcement designs, long term deflections, beam designs, reactions, automatic two way action, effective moment of inertia, and punching shear. Walls with restrained the bottom and the top for lateral movement. Long term deflection analysis using safe program the.
Concrete design software structural engineering software. Download geotechnical engineering software spmats 8. If restrained stem is selected, you may have a lateral support such as an abutting roof, slabongrade over backfill, or tiebacks. Each single slabs are referred to as panels, if the slab is continuous over supports. Aug 06, 2019 deeper units can be chosen than the sizes stated above, however design will not be carried out. Rcc slab design is a free app for designing one way and two way reinforced concrete slab systems as per indian standards. Supports also can be assigned as point restraints, point springs. Basement retaining wall design overview asdip software. Structural software cantilever and restrained retaining. Finite element modelling of frp strengthened restrained.
Reinforced concrete slab and beam design software adaptrc. The program can also analyze fence property line walls. This design software calculates the critical temperature of a beam ukb exposed to fire. Jul 26, 2019 learn more about restrained versus unrestrained members evstudio. One way slab here i solve a probleam based on the one way slab, the diamentions are provided in the probleam 1st determine the aspect ration and with respect to the aspect ratio the type of slab. Structural design software collection structural design spreadsheets. The design provided a cost effective solution which met both ultimate and serviceability requirements. Learn more about restrained versus unrestrained members evstudio. Restrained retaining masonry and concrete wall design. If the slab is restrained in vertical direction only, for example, it is supported on block or brick walls, the maximum design bending moment is calculated from the values at the face of the supports and smoothed parabolically see figure 4. The design bending moment of twoway restrained slab can be calculated as follows.
Talking about a simple explanation for your question. The software offers design solutions for secondary beams supporting uniformly distributed loads and primary beams supporting point loads at both mid and third points of the span. Reinforced concrete structural software includes programs for column design pcacolumn, beam design pcabeam, slab design pcaslab, wall design pcawall, mat design pcamats, foundation design. How to determine reinforcement design strip widths and locations. Flat slab analysis and design free version download for pc. The slab has to carry a distributed permanent action of 1. Restrained wall program allows you a constant thickness stem in concrete or masonry. 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. The computer program safe and all associated documentation are. Each spreadsheet contains formulas, reference code sections, and graphic drawings. The program is divided into three separate screens, which correspond to the three major areas of concern in the design of a posttensioned member. A normal property of concrete is that it shrinks as it loses the excess water required for initial placement. Jul 18, 2018 structural design software collection structural design spreadsheets.
If i have modeled the slab and shear walls, do i still need to adjust the shrinkage restraint %. It is time consuming to do all the stability and reinforcement design using in house tools. A slab or panel is said to be two way slab if the ratio of longer span to the shorter span is not greater than 2 two. Bs8110 provides a guide for undertaking analysis of simple slabs spanning in two directions, subject to universally distributed loads udl. Nov 15, 2014 one way slab here i solve a probleam based on the one way slab, the diamentions are provided in the probleam 1st determine the aspect ration and with respect to the aspect ratio the type of slab. You can perform reinforcement designs, long term deflections, beam designs, reactions, automatic two way action, effective moment of inertia, and. Shrinkage restraint % ram staad opentower forum ram. Welcome to soilstructure software tm soilstructure software. If the panel is continuous over three edges with one short edges discontinuous. If a solid slab is chosen, the contribution of the precast slab is ignored in resistance and stiffness calculations. 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. This arching behaviour is known as compressive membrane action cma and has been shown to enhance the flexural and shear capacity of reinforced concrete slabs.
The load on slab comprises of dead load, floor finish and live load. This article discusses the design of either concrete or masonry top restrained retaining walls. Precast concrete planks eurocode only tekla structural. Reinforced concrete slab design and detailing guide is456. Rcc design and detailing could be performed for ten different boundary conditions option to save the design projects in local storage. Following are the rcc slab design and detailing guidelines. If the panel is continuous all over the four edges. Computer modeling of restrained reinforced concrete slabs in. Betonexpress design of concrete structures according to eurocode 2. 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 and design designs beamless concrete slab floors flat slab or waffle slab in accordance with aci 318. Two way restrained slab dl30 to l32 c load on slab. It outlines the design process for concrete slabs, followed by analysis options. After more than a quarter century of consulting engineering work, i have come to the conclusion that our project engineers need robust software with familiar inputs.
Our software asdip retain will be used to support our discussion. Reinforced concrete design 1 design of slab examples and. Jan 28, 2018 analysis of longterm deflection of the slab using safe program is often confusing especially for those newbies in structural design, but thats already a few steps away of knowing. Simply supported slab upliftment of corners continuous slab no upliftment. I would have thought no because my model has all the elements causing restraint built in and therefore knows how restrained the slab is.
Deeper units can be chosen than the sizes stated above, however design will not be carried out. Completion of this drying process can take as long as two years. Twoway slab design panel select boundary condition of slab for upliftment of corners. The building has been named the aqua because of its contoured, wavelike balconies. I have also read that a shrinkage restraint value of 20% should be used for completely restrained slabs. All programs do a thorough analysis of overall sliding and overturning. Computer modeling of restrained reinforced concrete slabs. Structural design software engineering international. The automesher makes any restraint lines sometimes called hard. As the slab is designed as simply supported, only anticrack reinforcement is needed. If a solid slab is chosen, the contribution of the precast slab. During the construction stage the secondary beam compression flange is assumed to fully restrained by the multideck system, whilst the primary beam compression flange. When movement in response to shrinkage is restrained, the concrete can crack. The aim and objectives of this research is to provide a faster and accurate way to solve reinforced concrete design tests and questions.
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