A slab on grade does not have any voids below it and can be as thin as 4 inches. For help on designing a slab using this method, go to helpcontentsgraphical interface help concrete design modeexamplesbs8110 british code examplesslab design method 3. Heavy loads in buildings such as warehouses include moving loads, stationary live loads, and wall loads. In this section several typical slabongrade sections are illustrated and described. A shallow frostprotected foundation relies on heat loss to the ground to keep the soils beneath the footing above freezing. Instead of digging down and emptying an average of 3 cement trucks to pour a basement foundation footing, floor, and walls. Slab on grade curbless shower plumbing contractor talk. 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. Concrete slab on grade analysis calculator for post or. The slab on grade can be installed on the virgin ground, a layer of stone or porous material, etc. Advantages of using posttensioning for your next slabonground project. Gcp applied technologies sds strux slabongrade design software enables the engineer to design slabongrade using the latest in. There are many different soil conditions and corresponding slab designs. Gcps sds software is a userfriendly, flexible software tool for designing slabongrade and can be.
Optimize your fiberreinforced concrete slab on grade. For 6 to 10 thick slabs on grade with k values between 100 pci and 200 pci, the increase in stress, i, due to a 2nd wheel or post load as a percentage of stress for a single wheel or post load is approximately. This video demonstrates using tekla tedds for concrete industrial ground floor design using the technical report 34 guide to design and construction fourth edition. Aci 360, design of slabsongrade, refers to this as a type b slab. Floor software inputs gross area or slab perimeter. This page is about how to build a thickened edge concrete. Concrete slab and foundation design software safe important message. Enter the gross area of the floor in square feet along the boundary where it separates conditioned from unconditioned space or enter the perimeter of the slab on grade component in linear feet. It is these applications that have the greatest potential savings in construction time, construction cost and ongoing maintenance. Advantages and disadvantages of each of these slab. Slab on grade software analysis results structural.
Slabongrade foundation best practices cold climate. Figures 49 through 411, and 415 show configurations with insulation on the exterior surface of the foundation. The closer the steel is to the top of the slab and the more steel used, the more curling will. Reinforcing the upper half of a slab on grade restrains. Its more user friendly compared to other pt design softwares. Aci 360, design of slabs on grade, refers to this as a type b slab. Calculation and the theory by which the software works are.
Concrete industrial ground floor design to tr34 4th edition. Weldedwirefadric reinforcingbars introduction the phrase slabongrade, as commonly used in practice, covers a number of practical slab. Using ram concept a powerful slab design software offered by bentley. This page is about how to build a thickened edge concrete slab on grade fpsf footing on soil with a high water table to prevent frost heave, by first installing drainage below the slab. Reinforcing steel in slabs on grade concrete construction. If there is a foundation around the perimeter, first of all the top of the foundation should have a brick shelf bondout on the interior to make sure the slab joint to wall is under the baseboard interior finish later. Posttensioning may be included in both slabs and beams to balance a percentage of the selfweight. Adaptrc is for the analysis andor design of reinforced concrete beams, slabs and floor systems. Analysis of a slabs capacity to support on interior line load or. Figures 49 through 411, and 415 show configurations with insulation on. Advantages and disadvantages of each of these slab designs are provided, including the ability of some slab designs to minimize cracking and curling more than others. What is grade slab and what is the difference between grade. Onscreen warning messages for out of compliance conditions.
Slab floor tolerance structural inspections internachi. Powered by the equivalent frame method of analysis and design per latest american aci 31814 and canadian csa a23. That is, the concentrated post or wheel load is assumed to be well away from a free slab edge or corner. Post tension slab design software sethguthrie civilenvironmental 18 aug 16 19. Floor is closer to grade, so easier to get in and out. 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. This element considers the thin plate theory, which makes use of the following kirchhoff hypotheses. Slab on grade definition what does slab on grade mean in. Design strips, safe finite element analysis, slab analysis, slab design interpreting the slab analysis result using safe program is the last stage to consider in the design of the slab using. Analyze and design a uniform thickness concrete slab on grade.
The slab on grade worksheet allows the user to account for the effect of an additional post or wheel load. Concrete industrial ground floor design to tr34 4th. Flat concrete structure built on top of the soil at ground level and does not require support from underground footers or foundation walls. Slabongrade and posttensioned slab software adaptsog. Flat slab analysis and design designs beamless concrete slab floors flat slab or waffle slab in accordance with aci 318. Oct 11, 2016 ground slab and elastic foundation hi guys, im working on a gound slab design and for any reason i cant see forces, moments, stress etc. Heavy loads in buildings such as warehouses include moving loads, stationary. Concrete slab on grade analysis calculation description.
The sikafiber software for calculating fiberreinforced concrete slabs on grade is a powerful tool for optimizing designs. Grdslab is a spreadsheet program written in msexcel for the purpose of analysis of concrete slabs on grade. Concrete slab on grade analysis calculator for post or wheel. What is the best software to design a post tension slab. In order to improve productivity, the gse software provides an automatic slab on grade generation function. Weldedwirefadric reinforcingbars introduction the phrase slab on grade, as commonly used in practice, covers a number of practical slab. After this publication, it was subsequently adopted by the uniform building. What id like to do in the video is to create basically a slab on grade. 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. Post tension slab design software structural engineering. Figures 412 through 414 show variations where the slab is the primary location for insulation. Slab on grade software analysis results retired civilenvironmental 31 oct 19 17.
Grdslab concrete slab on grade analysis spreadsheet. Less concrete and steel are needed for the same structural capacity and the slab stiffness is increased so. A2slab thickness design by wri method a3design examples using coe charts a4slab design using posttensioning a5shrinkagecompensatingconcreteexamples chapter lintroduction l. Reinforcing the upper half of a slab on grade restrains drying shrinkage, thus reducing curling. 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. Theoretical concepts, practical applications, basis of design, and design procedures for heavy.
Slab is the only commercially available software to systematically automate the wellknown yieldline analysis method for concrete slabs, allowing the ultimate load capacity and critical failure mechanism to be calculated in seconds. Slabs or foundations can be of any shape, and can include edges shaped with circular and spline curves. The software in general is very good and ties in well with the way we do things here. Adaptsog software for the design of posttensioned slabs on grade foundations on expansive and compressible soils. Grdslab concrete slab on grade analysis spreadsheet cesdb.
History the joint free slab on grade system was first launched in october 2000. Calculation and analysis of uniform thickness slabs, sometimes. An interior load condition is assumed for flexural analysis. The analysis and design follow the equivalent frame analysis method of the. Jan 06, 2014 slab on grade foundation, detail design. Suspended slabs can include flat, twoway, waffle, and ribbed framing systems. Download free demo updated august 8, 2019 soilstructure slab on grade software simplifies the calculation of a. Slab on grade safi structural engineering software. Top 4 download periodically updates software information of slab full versions from the publishers, but some information may be slightly outofdate using warez version, crack, warez passwords, patches, serial numbers, registration codes, key generator, pirate key, keymaker or keygen for slab license key is illegal. Soilstructure slab on grade software has the following unique capabilities. I am totally committed to be 100% ca in a couple of months. Powered by a sophisticated fem solver increasing capacity and substantially speeding up solution for large and complex models, spmats v8. From a radiant heating perspective, it doesnt matter if the slab is actually at grade or is poured. If there is a foundation around the perimeter, first of all the top of the.
On grade foundations are a popular design in interior alaska. This overlay will show up while the video is playing. Program geo5 slab is designated for analysis of foundation mats and slabs on elastic subsoil, resp. All sills to be pressure treated, including interior walls. Heavy loads in building s such as warehouses include moving load s, stationary. So under structural plans in the project browser, lets go to level one. In order to improve the productivity for safi software users, an automatic slab on. The slab on grade worksheet assumes a structurally unreinforced slab, aci360type b, reinforced only for shrinkage and temperature. I do have a couple of related stumbling blocks and that has to do with drawing a. Now whether or not the slab on grade is resting partly on a foundation or not, should not indicate a settling differential. The increase in stress, i, due to a 2nd wheel or post load expressed as a percentage of stress for a single wheel or post load and is to be input by the user. Design and analysis of slabonground foundations on both.
The major structural components of a slabongrade foundation are the floor slab itself and either grade beams or. 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. In order to improve the productivity for safi software users, an automatic slab on grade generation function has been added. 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. 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.
In order to improve productivity, the gse software provides an automatic slab on grade. We are committed to delivering uninterrupted software services worldwide during the covid19 crisis. Rapt is a two dimensional post tension beamslab design software. 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. Nov 18, 2008 now whether or not the slab on grade is resting partly on a foundation or not, should not indicate a settling differential.
Flat slab analysis and design free version download for pc. Safe is the ultimate tool for structural engineers designing concrete floor slabs, and foundation systems. It is these applications that have the greatest potential savings in construction time, construction cost and ongoing maintenance cost. 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.
The design procedure set forth in that publication had at that time been in use by the author for about 15 years. The slab on grade installation a slab on grade is defined as any concrete slab poured over excavated soil. Tb1202 a guide to gcp sds strux slabongrade design. A reinforced slab on grade will span soft spots by providing enough structural capacity to bridge the weaker supporting areas. Reinforcement of concrete plates, shells and slabongrade foundation. Refer to the input comment box for recommendations. I wouldnt trust most concrete guys to get the slope correct, but if you have a really good guy, then go for it. The soilstructure interaction is an important component in the design of a building or any structure in general. Grdslab concrete slab on grade analysis excel spreadsheet. Posttensioned, reinforced concrete slab design software ram. Download geotechnical engineering software spmats 8. Slab on grade function the soilstructure interaction is an important component in the design of a building or any structure in general.
Soilstructure slab on grade software simplifies the calculation of a uniform concrete slab subjected to three loads. This grade slab acts as the foundation for a home or building, and provides a stable base for w. Slab on grade curbless shower just form it with a 2 form and pour it. Posttensioning and reinforced concrete structural analysis. Gcp applied technologies sds strux slabongrade design software enables the engineer to design slabongrade using the latest in synthetic macro fiber technology. 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. This project uses modeling software to address these questions. Concrete slab on grade analysis the engineering community. Standard requirements for design and analysis of shallow posttensioned concrete foundations on expansive soils. The software in general is very good and ties in well with the way. Specifically, a concrete slab on grade may be subjected to concentrated post or wheel loading. Ongrade foundations are a popular design in interior alaska.
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