Design floors and foundations reliably and efficiently, saving time and money, and overcoming the most common concerns you face as a designer. Models steps above and below the mat slab and grade beams. Strux 9040 synthetic macro fibers are a unique form of high strength, high modulus synthetic macro reinforcement that is distributed uniformly throughout the concrete matrix. With the new sikafiber software, sika provides a tool for designing fiber reinforced concrete frc slabs on grade reinforced using polypropylene or steel.
An interior load condition is assumed for flexural analysis. Stresses in floor slabs on grade resulting from vehicular loads a re a function. Slab on grade design guidance structural engineering. For more heavily loaded slabs however, and slabs with known heavy point loads, stacking loads and repetitive wheel loads, analysis and design is often required to satisfy the engineer that the slab. Less concrete and steel are needed for the same structural capacity and the slab stiffness is increased so that the slab is better able to resist bending caused by differential soil movements. Place tendons in beam or slab, straight or profiled in any direction. This element considers the thin plate theory, which makes use of the following kirchhoff hypotheses.
Nov 14, 2018 in this video lecture you are able to learn about analysis and designing of rcc slab by using staad pro v8i software. 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. Soilstructure slab on grade software simplifies the calculation of a uniform concrete slab subjected to three loads. Design publications and software for post tensioned slabs. The soilstructure interaction is an important component in the design of a building or any structure in general. In this section several typical slab on grade sections are illustrated and described. Grdslab concrete slab on grade analysis spreadsheet cesdb. Online concrete slab on grade analysis calculator for slab subjected to interior concentrated post or wheel loading assuming slab is reinforced for shrinkage and temperature only. This video demonstrates using tekla tedds for concrete industrial ground floor design using the technical report 34 guide to design and construction fourth edition. Posttensioned, reinforced concrete slab design software ram.
This workbook is for concrete slab on grade analysis. Only the design of slab bridge will be used for illustration. Design and analysis of slab onground foundations on both expansive and compressible soils. Example on design of slab bridge design data and specifications superstructure consists of 10m slab, 36m box girder and 10m tgirder all simply supported. Grdslab is a spreadsheet program written in msexcel for the purpose of analysis of concrete slabs on grade. The pca and wri slab on grade design methods for industrial floors led to a design for concrete fatigue, even though 2. In order to improve productivity, the gse software provides an automatic slab on grade generation function. Safe is the ultimate tool for structural engineers designing concrete floor slabs, and foundation systems. In this context, design is defined as the decisionmaking process of planning, sizing. A3 design examples using coe charts a4 slab design using posttensioning a5shrinkagecompensatingconcreteexamples chapter lintroduction l. Online concrete slab on grade analysis calculator for slab subjected to. Structural engineering software, spreadsheets, for analysis and design, including wood, lateral. What is a good resource for design a slab on grade subjected to a column load.
Hopefully there are tables that will eliminate the need for fea. Civil engineering tutorials by shravan 1,976 views. Radius of stiffness, lr, is a measure of the stiffness of the slab relative to the foundation subgrade. First designs to follow the brab report required foundations heavier even than the san antonio. Asce, secb course content slab on grades construction. Engineering international structural design software. Concrete slab and foundation design software safe important message.
The designer determines the required slab thickness after determining the controlling loads, the appropriate safety fact o r, and the subgrade modulus. Stresses in floor slabs on grade resulting from vehicular loads are a function of. It addresses the planning, design, and detailing of slabs. Foundations come in many types, and each one has its strengths and weaknesses. View and examine the solid model to verify the accuracy of the structures representation. The crosssectional area of the reinforcement above the ribs should be not less than 0. Calculation and analysis of uniform thickness slabs, sometimes referred to as california flat slabs. Concrete slab on grade analysis calculator for post or wheel loading for slab subjected to interior concentrated post or wheel loading assuming slab is reinforced for shrinkage and temperature only. Flat slab analysis and design free version download for pc.
Reinforcement of concrete plates, shells and slabongrade foundation design. Tb1202 a guide to gcp sds strux slabongrade design. Structural engineering software, spreadsheets, for analysis and design, including wood, lateral analysis, concrete, steel, aluminum, glass, masonry, bridge, foundation. Introduction concrete slabs on grade are a very common type of concrete construction. That is, the concentrated post or wheel load is assumed to be well away from a free slab edge or corner. The construction and design of concrete slabs on grade d. The wire reinforcing institute recommends the use of the subgrade drag theory for slabs up to 150 feet in length. Structurepoint, formerly the pca engineering software group, offers concrete design software programs updated to aci 31814 for concrete buildings, concrete structures and concrete tanks. Effective span of slab shall be lesser of the two 1. The slab on grade worksheet assumes a structurally unreinforced slab, aci360type b, reinforced only for shrinkage and temperature.
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. How to design a conc rete slab on grade duane craig pin share tweet share email a foundation is an extremely critical part of the building. Posttensioned slab on grade foundation 3d fem design software adaptsog product overview adaptsog is a complete threedimensional 3d finite element fem analysis and design tool for the analysis and design of posttensioned foundations slabs on expansive soils. Design of slabs on ground aci 360r06 by american concrete institute slab thickness design for industrial concrete floors on grade is195. A4 slab design using posttensioning a5shrinkagecompensatingconcreteexamples chapter lintroduction l.
Concrete slab design procedure7 design of continuous slab basics of reinforced concrete slab design slabs are generally designed on the assumption that they consists of. Tab 1 slab design input required data constants change only if necessary calculated data b notations. Reinforced concrete slab and beam design software adaptrc. Slab on grade is a misnomer, since these types of foundations invariably include turneddown edges similar to, but not as. Design is defined as the decisionmaking process of planning, sizing, detailing, and developing specifications preceding construction of slabs onground. Gcp applied technologies sds strux slabongrade design software enables the engineer to design slabongrade using the latest in synthetic macro fiber technology. The soilstructure interaction is an important component in the design of a building or any. Concrete beam, column, slab and foundation design in the axisvm structural analysis and design software. The individual developers of the software might have other employers besides daniel t. We are committed to delivering uninterrupted software services worldwide during the covid19 crisis. The soil structure interaction is an important component in the design of a building or any.
Adaptsog software for the design of posttensioned slabs on grade foundations on expansive and compressible soils. Specifically, a concrete slab on grade may be subjected to concentrated post or wheel loading. Structural design software engineering international. Concrete slab design software economically design posttensioned and reinforced concrete floors including slabs, mats, and rafts, with exceptional visibility into compliance, efficiency, and practicality. Also, design charts from the portland cement association pca are included to provide an additional method for determiningchecking required slab thickness for flexure. There are worksheets for wheelpoint loads, wall loads, and uniformly distributed loads. Need suggestions for a good pt software and design books with examples of post tensioned slabs on grade. Information on other aspects, su ch as materials, construction methods, placement of concrete, and finishing techniques, is.
Slabongrade and posttensioned slab software adaptsog. Download geotechnical engineering software spmats 8. Optimize your fiberreinforced concrete slab on grade. Reinforced concrete structural software includes programs for column design pcacolumn, beam design pcabeam, slab design pcaslab, wall design pcawall, mat design pcamats, foundation design. As the slab is designed as simply supported, only anticrack reinforcement is needed.
Two way slab design to aci free download and software. Its more user friendly compared to other pt design softwares. Consider all major aspects of slab design including service, ductility, and strength limit states, codeprescribed requirements, longterm deflections, punching shear, and walking vibration. L center to center distance between the support b depth of slab. What is the best software to design a post tension slab. Concrete industrial ground floor design to tr34 4th. Floor slabs can range from a simple residential basement slab to a heavyduty industrial floor. Download free demo updated august 8, 2019 soilstructure slab on grade software simplifies the calculation of a.
The major structural components of a slabongrade foundation are the floor slab itself and either grade beams or foundation walls with footings at the perimeter of the slab see figures 42 and 43. Aci committees 360, design of slabs on ground, and 302, construction of concrete floors, have been at the forefront of the effort to provide the industry with the tools to produce slabs that are flat and level, with a densely finished surface, stable joints, and limited cracking while being capable of supporting applied loads. There are also 4 worksheets which are basic replications of the charts from a dated, but well renowned pca publication for slabs on grade. Analysis of a slabs capacity to support on interior line load or concentrated point load. Figures 412 through 414 show variations where the slab is the primary location for insulation. In table 1 the comparison of design pavement thickness required for aircraft parking apron versus the hangar floor slab would indicate at first glance that the civil engineer, likely the apron designer, has different methods and requirements than the hangar floor slab, a structural engineer. Safe provides an immensely capable yet easytouse program for structural designers, provideing the only tool necessary for the modeling, analysis, design, and detailing of concrete slab systems and foundations. With the automated slab generation and design tools in safi, the longitudinal reinforcement required to withstand bending forces is calculated according to the design parameters defined by the user. Design elevated concrete slabs with or without posttensioning.
The ability to analyze the capacity of a slab on grade subjected to continuous wall linetype load as well as stationary, uniformly distributed live loads is also provided. Jul 21, 2017 rapt is a two dimensional post tension beam slab design software. A new method for designing floor slabs on grade due to the. Tm 580912 concrete floor slabs on grade subjected to. Concrete slab on grade analysis calculator for post or wheel. Onscreen warning messages for out of compliance conditions. Analyze and design a uniform thickness concrete slab on grade. Calculate the maximum wall load that the maximum wall load that a concrete slab on grade floor can support at a joint or at the centerinterior of the slab. Powered by the equivalent frame method of analysis and design per latest american aci 31814 and canadian csa a23. Geo5 slab is an intuitive program for the design of foundation mat and slab using the fem. This spreadsheet is an extremely efficient tool and allows to quickly design two way slabs to aci code. Soilstructure slab on grade software has the following unique capabilities.
Grdslab concrete slab on grade analysis excel spreadsheet. In this channel you can learn about online civil engineering softwares. Grdslab concrete slab on grade analysis spreadsheet. Powered by a sophisticated fem solver increasing capacity and substantially speeding up solution for large and complex models, spmats v8.
General design process though many details must be included in the design of a slab on grade, three important components are slab thickness, reinforcement requirements, and joint spacing. It is a linear dimension and represents mathematically the 4th root of the ratio of the stiffness of the slab to the stiffness of the foundation. Ptislab can be used to design or analyze both posttensioned and conventionally reinforced slabs onground for single and multifamily residential and commercial foundations on expansive and. Hangar pavement design wbdg whole building design guide. It was actually the widespread use of the posttensioned slab onground which induced this interest in design procedure and in many studies of reported slab failures. The construction and design of concrete slabs on grade. Design is defined as the decisionmaking process of planning, sizing, detailing, and developing specifications preceding construction of slabs on ground. Concrete slab on grade analysis calculator for post or. Aci 360, design of slabsongrade, refers to this as a type b slab.
Dec 07, 2017 this video demonstrates using tekla tedds for concrete industrial ground floor design using the technical report 34 guide to design and construction fourth edition. Figures 49 through 411, and 415 show configurations with insulation on the exterior surface of the foundation. This guide presents information on the design of slabs onground, primarily industrial floors. Aci 360, design of slabs on grade, refers to this as a type b slab. The recommendations derived from these and other studies vary from extremely light to extremely heavy. Apply loads of any configuration, anywhere on the slab in addition to the perimeter loading. The slab is idealized as a mesh of rectangular plate finite elements with four nodes at the corners and three degrees of freedom dz, rx and ry per node. Concrete industrial ground floor design to tr34 4th edition. The safi gse concrete software supports several concrete design standards, including the aci318 american standard and the csa a23. Determining slab thickness starts with the purpose of the slab, its use and its loads, in addition to applicable standards. Flat slab analysis and design designs beamless concrete slab floors flat slab or waffle slab in accordance with aci 318. With the new sikafiber software, sika provides a tool for designing fiberreinforced concrete frc slabs on grade reinforced using polypropylene or steel.
The pti design procedure is used to design a slab on grade foundation that will respond. Slab thickness design for industrial concrete floors on grade is195. Floors ctr wall ld thickness calculate the required thickness of a concrete slab on grade floor to support a wall load at the centerinterior or on a joint. Determining the purpose of the slab sound design of a slab on grade begins with determining the intended use and performance criteria. I have a column with an 18kip vertical load and soil with 150 pci subgrade modulus and im wondering if i can use a 12 slab. Instructional materials complementing fema p751, design examples foundation analysis and desing foundation design 1. Background information on design theories is followed by discussion of the types of slabs, soilsupport systems, loadings, and jointing. Packard portland cement association, 1976 concrete floor slabs on grade subjected to heavy loads army technical manual tm 580912, air force manual afm 883, chapter 15 1987. Gcp applied technologies sds strux slabongrade design software enables the engineer to design slabongrade using the latest in. Slab on grade design guidance once20036 structural 26 may 17 12.
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