Concrete floor slabs on grade are subjected to a variety of loads and loading conditions. 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. The two design options are a groundbearing slab, or a pile supported suspended slab. Its more user friendly compared to other pt design softwares. 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. The assistant generates column strips and middle strips that are adapted to the geometries of the bidirectional span of the slab. Subgrade the subgrade must be properly compacted and drained in order to give the bearing support assumed in design. Calculate the required thickness of a concrete slabongrade floor to support a wall load at the centerinterior or on a joint. Concrete slab design monolithic slab foundation design more. Information on other aspects, su ch as materials, construction methods, placement of concrete, and finishing techniques, is. Design of slabs on ground aci 360r06 by american concrete institute 2006 4. The construction and design of concrete slabs on grade d.
Even congested tendons can be routed around obstructions. Now, i just need to design my slab on grade for a relatively small uniformly distributed load live load 4. Construction of posttensioned slabs on grade is very similar to using reinforcing steel, except for the tensioning step. This cfs 1002 steelfiberreinforced concrete floor has joint spacing of 55 feet and is totally free of visible cracks. Introduction concrete slabs on grade are a very common type of concrete construction. Grdslab concrete slab on grade analysis excel spreadsheet. Easy to use home design software for all expertise and difficulty levels. Analysis and design of reinforced castinplace concrete diaphragms. I think ringo is just a summary of the traditional concrete design methodologies.
Concrete industrial ground floor design to tr34 4th. Tm 580912 concrete floor slabs on grade subjected to heavy. Calculators for structural engineers, construction professionals and steel building specifiers. References to this document are made throughout this guide if the reader wishes. The following key e floor and slab construction are given where appropriate. Design of slabsonground aci 360r06 by american concrete. Mar, 2019 slab on grade concrete slab on grade analysis for concentrated post or wheel loading. The design procedure includes determining slab thickness based. A concrete mixture ratio of 1 part cement, 3 parts sand, and 3 parts aggregate will produce a concrete mix of approximately 3000 psi. Diy concrete slab design for the diy concrete slab designer, there are extensive graphics and resources available to build a perfect slab for the kit home builder.
I have a two storey building, and my second floor and roof loads are transmitted to column footings below my slab on grade. Figures 412 through 414 show variations where the slab is the primary location for insulation. Concrete slab design software economically design posttensioned and reinforced concrete floors including slabs, mats, and rafts, with exceptional visibility into compliance, efficiency, and practicality. 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. Concrete slab design monolithic slab foundation design. Sorry if this subject has allready been discussed previously. The structural design of the concrete floor slab on ground is dominated by the sub grade conditions and the floor loadings. Slabongrade and posttensioned slab software adaptsog. Steel fiber reinforcement for slabongrade applications.
What id like to do in the video is to create basically a slab on grade. Concrete floor slabs on grade subjected to heavy loads army technical manual tm 580912, air force manual afm 883, chapter 15 1987 2. What is a good resource for design a slab on grade subjected to a column load. Whether the project is local or overseas, design codes from around the globe are available for reinforced concrete and posttensioned slab design. It is the lesson for fresh learner related with autodesk robot design. The wire reinforcing institute recommends the use of the subgrade drag theory for slabs up to 150 feet in length. Asce, secb course content slab on grades construction. Safe is the ultimate tool for designing concrete floor. How to use this guide s n n n that are found in aci 302. Concrete slab reinforcement design and code checks can be performed based on the following codes.
Use our design tool to design your next slabongrade project. Without support, the slab has little chance of supporting. Jan 10, 2017 it is the lesson for fresh learner related with autodesk robot design. Calculate the minimum thickness of a fiber reinforced slab. Posttensioned, reinforced concrete slab design software ram. The base floor within a building may simply be a castinplace concrete slab on grade with limited design considerations for structural support or environmental control functions. Rapt is a two dimensional post tension beamslab design software. Slab on grade design guidance structural engineering. What id like to do in the video is to create basically a slab ongrade.
Concrete slab and foundation design software safe important message. Comparing epoxy polymer concrete to portland cement concrete applied on slabongrade and bridge decks. Concrete slab resting on grade containing steel reinforcement which consists of either a welded wire fabric or deformed reinforcing steel bars. Concrete slab on grade analysis calculator for post or wheel. Design concrete slab on grade concrete engineering. It was actually the widespread use of the posttensioned slabonground which induced this interest in design procedure and in many studies of reported slab failures. Creeplong term deflection is not currently analyzed in risafloor es for. A residential posttensioned concrete slab will typically be 8 inches thick and use 3000 psi concrete. Part 1 defining and analyzing a concrete floor robot structural analysis duration. Retainwall is a software mainly developed for the purpose of designing a concrete or masonry retaining wall. Feb 23, 2019 concrete slab design monolithic slab foundation design more recent slab on grade design information recommends and even calls for monolithic slab. For further information see 1 load carrying capacity for concrete slabs on grade in the asce journal of structural engineering january 1997. For slabs with light loads, as those for homes, include wire mesh midway up the thickness of the slab to reduce cracking. For a slab with a thickness of 100mm lets say that the other measurements are 6m x 6m, if that is of any importance, how shoul.
I could not find a better reference that covered the subject matter like this book does. The structural design of the concrete floor slab onground is dominated by the subgrade conditions and the floor loadings. Guide for concrete floor and slab construction aci 302. Very good reference for designing concrete slabs on grade. A floor screed is usually a cementitious material made from a 1. Feb 23, 2019 concrete slab design monolithic slab foundation design more recent slab on grade design information recommends and even calls for monolithic slab foundation design concrete floor slab design nz. It may be that here is a time when the owner builder has to get help, because laying slabs is an arduous, time consuming process best suited to. Design of slabsonground aci 360r06 by american concrete institute slab thickness design for industrial concrete floors on grade is195. 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. Guidelines for high performance slabongrade construction the euclid chemical company. Economically design posttensioned and reinforced concrete floors including slabs, mats, and rafts, with exceptional visibility into compliance, efficiency, and practicality. Steel fiber reinforcement for slabongrade concrete. 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.
Stresses in concrete slabs come from volume changes in the concrete from shrinkage and temperature changes or. Tendons today are seven highstrength steel wires wound together and placed inside a plastic duct. Practice oriented papers and articles on reinforcing slab on grade sp33906. Increase your efficiency with bidirectional links to the industry leading bim products. It analyses the stability of the wall based on the loads and resistances, and results in. Powered by a sophisticated fem solver increasing capacity and substantially speeding up solution for large and complex models, spmats v8. Design and investigation of concrete foundations, mats, combined footings, pile caps, slabs on grade. How to design a concrete slab on grade duane craig pin share tweet share email a foundation is an extremely critical part of the building.
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. How to design an ideal floor for warehouse and logistics facilities. Concrete slab on grade analysis calculator for post or. Slab reinforcement design for the faculty of divinity, cambridge. So under structural plans in the project browser, lets go to level one.
The structural design of a concrete floor slab on grade is primarily controlled by the stresses caused by moving live loads and in some cases the stationary loads. Concrete slab on grade analysis the engineering community. For the diy concrete slab designer, there are extensive graphics and resources available to build a perfect slab for the kit home builder. Grdslab concrete slab on grade analysis spreadsheet.
In another example, the ground, first and second floor slabs of the faculty of divinity at the university of. Equivalent tensile stress design appendix 5examples using shrinkagecompensating concrete, p. Reinforced concrete slab and beam design software adaptrc. Posttension basics how posttensioned slabs are built. Concrete slab design software free download concrete. 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. Stresses in concrete slabs come from volume changes in the concrete from shrinkage and temperature changes or from imposed loads. Wsp used ram and microstation to design and share efficient concrete slab floor designs for the iconic one blackfriars complex. How to design an ideal floor for warehouse and logistics. Design of slabs on ground aci 360r06 by american concrete institute slab thickness design for industrial concrete floors on grade is195. Euclid chemical concrete floor systems design guide. What is the best software to design a post tension slab. Mixing water with the cement, sand, and stone will form a paste that will bind the materials together until the m.
Design is defined as the decisionmaking process of planning, sizing, detailing, and developing specifications preceding construction of slabsonground. Safe is the ultimate tool for structural engineers designing concrete floor slabs, and foundation systems. Steel fiber reinforcement for slabongrade concrete fiber. Figures 49 through 411, and 415 show configurations with insulation on the exterior surface of the foundation. The recommendations derived from these and other studies vary from extremely light to extremely heavy. The wall may retain soil or other granular material. I am trying to model a ground supported concrete floor in arsa 14. Slab thickness design for industrial concrete floors on grade is195. 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. Flat slab analysis and design free version download for pc. The classification report provides information for needed subgrade improvement measures and design parameters for the concrete slab specification. Once the concrete has gained strength to 2000 psi, typically within the 3 to 10 days recommended by pti, the tendons are stressed. The base floor may also be comprised of a mud or structural foundation slab complete with waterproofing and wearing slab with the overall system designed to carry.
There are many proprietary screeds on the market and information about these can be obtained from the manufacturer. Powered by the equivalent frame method of analysis and design per latest american aci 31814 and canadian csa a23. Tm 580912 concrete floor slabs on grade subjected to. 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. Posttensioned slabongrade 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. It may be that here is a time when the owner builder has to get help, because laying slabs is an arduous, time consuming process best suited to subcontractors. Design floors and foundations reliably and efficiently, saving time and money, and overcoming the most common concerns you face as a designer. In this section several typical slabongrade sections are illustrated and described.
Aci 360, design of slabsongrade, refers to this as a type b slab. Production of a quality concrete slab requires proper techniques and adequate planning. Steel fiber reinforcement for slab on grade applications cfs 1002 steel fibers help control random cracks in groundsupported concrete floors. Cables are arranged as indicated by the engineer and. Flat slab analysis and design designs beamless concrete slab floors flat slab or waffle slab in accordance with aci 318. 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. We are committed to delivering uninterrupted software services worldwide during the covid19 crisis. Calculation and the theory by which the software works are attached with this softwares index, this thing is not seen. This video demonstrates using tekla tedds for concrete industrial ground floor design using the technical report 34 guide to design and construction fourth edition. Floor slabs can range from a simple residential basement slab to a heavyduty industrial floor. In ordinary jointed floors, steel fibers provide a safety net by limiting the width of any cracks that occur between the joints. Slab on grade design guidance once20036 structural 26 may 17 12. Join eric wing for an indepth discussion in this video creating a slab on grade, part of revit 2021. It may be applied onto either a solid insitu concrete ground floor slab or onto a precast concrete floor unit.
The construction and design of concrete slabs on grade. Aci 360, design of slabs on grade, refers to this as a type b slab. 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. Concrete industrial ground floor design to tr34 4th edition. Perform calculations for the design of concrete floors on grade. For slab subjected to concentrated post loading for k 100 pci per pca slab thickness design for industrial concrete floors on grade figure 7b, page 10. Creeplong term deflectionwill only be analyzed for concrete floor slabs when the user defined method is selected for the reinforcement design.
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