Design with steel fabric reinforcement 103 e1 supplement to chapter 9, strength and serviceability of slabs 103 e2 extension to appendix b, thickness design of a ground supported floor slab 103 e2. Pdf fabricreinforced concrete ground slabs and concrete. The design of groundsupported concrete industrial floor. Model and design slab on ground, end bearing piles and friction piles using the inducta software. Slab on ground posttensioned slabson ground provide a costefficient, highperformance solution for problems associated with ground supported residential foundations on shrinkswell soils. Design of slab examples and tutorials by sharifah maszura syed mohsin example 1. Specifically, a concrete slab on grade may be subjected to concentrated post or wheel loading. Itn 11 design of groundsupported concrete industrial floor. The article presents detailed results of the experiment made and advanced numerical modelling based on nonlinear analysis and application of fractureplastic model. This enables to obtain the required design criteria and provide safety for the. Slabonground posttensioned slabsonground provide a costefficient, highperformance solution for problems associated with groundsupported residential foundations on shrinkswell soils.
Crosssections can include a combination of rectangular, i, t and lsections, and spans can have constant or tapered sections. The article handles potential approaches to design and determination of total load capacity of foundation slabs and floors. I am trying to model a ground supported concrete floor in arsa 14. Reinforced flat slab design spreadsheet flat slab system is an important division of concrete floor system. Pdf in 2003, the third edition of concrete society technical report 34 1 was.
Safety of wire mesh reinforced concrete slabs and steel fibre reinforced concrete slabs is discussed. Formerly known as the cement and concrete association, the british cement association is the trade and research organisation. Reinforced and posttensioned concrete slab design software. A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. In contrast the conventional slabonground is floating and in theory is supported entirely by the soil upon which it is poured. As the floor type name implies, any loads imposed on the concrete floor are carried directly and fairly uniformly by. Design of slabson ground aci 360r06 by american concrete institute slab thickness design for industrial concrete floors on grade is195. The new and improved slabonground design manual concrete. The new 1996 edition reflects the industrys current knowledge of posttensioned groundsupported slabs and is easier for design professionals to use. Crcm is an innovative method of building structures resisting natural disasters, is the result several years of exploration from rammed earth, to prefabrication, masonry concrete.
Optimize your fiberreinforced concrete slab on grade. As a standalone program, it analyzes and designs individual floor levels one at a. Safe is the ultimate tool for structural engineers designing concrete floor slabs, and foundation systems. Concrete slab on grade floor in warehouse with sikafiber fibers. The article presents detailed results of the experiment made and advanced numerical. Sample specification download sample specifications and see what. Analysis of concrete slabs on grade spreadsheetdownload free. Guidance on the design and construction of groundsupported concrete floors was originally developed and. As the floor type name implies, any loads imposed on the concrete floor are carried directly and fairly uniformly by the ground under the floor. This book develops the design methods set out in the associations technical report 550, design of floors on ground. Pdf punching shear failure of concrete ground supported slab. At the time of the code change before 2005, there was discussion about adding a definition for posttensioned concrete slabs on expansive soils. The design of groundsupported concrete industrial floor slabs chandler, j.
Punching shear failure of concrete ground supported slab. The first construction step, after determining the floor level of the house, is to run up footing walls in the usual manner, and build piers to the same height of solid concrete block on 6 to 8 foot centers in each. May 29, 2018 the article handles potential approaches to design and determination of total load capacity of foundation slabs and floors. Reinforced concrete design 1 design of slab examples. Is a slabonground that is supported by piles still considered a slabonground by aci. Tm 580912 concrete floor slabs on grade subjected to. The design of concrete groundsupported concrete industrial floor slabs. The design of concrete ground supported concrete industrial floor slabs. Crcm is an innovative method of building structures resisting natural disasters, is the result several years of exploration from rammed earth, to prefabrication, masonry concrete with 7,500 units in mexico city where. The slab has to carry a distributed permanent action of 1. In contrast the conventional slab on ground is floating and in theory is supported entirely by the soil upon which it is poured.
Design of slabsonground aci 360r06 by american concrete institute slab thickness design for industrial concrete floors on grade is195. Adaptfloor pro is backed by our unparalleled support team, providing. Background information on design theories is followed by discussion of the types of slabs, soilsupport systems, loadings, and jointing. Chapter 10fiberreinforced concrete slabsonground, p. Technical information groundsupported slabs are not rafts and do not have the ability to span over soft zones or poorquality subsoil. A comparison with conventional design methods is performed. The variations presented later in this paper have been derived empirically. The new 1996 edition reflects the industrys current knowledge of posttensioned ground supported slabs and is easier for design professionals to use. Concrete industrial ground floors tr34 is recognised globally as a leading publication giving guidance on many of the key aspects of concrete industrial ground floors. The design of ground supported concrete industrial floor slabs chandler, j. Since the books initial publication in 1980, it has been used by engineers and contractors to successfully design and construct hundreds of thousands of posttensioned slabs on ground. E2 extension to appendix b, thickness design of a groundsupported floor slab. Itn 11 design of groundsupported concrete industrial. Design of groundsupported concrete industrial floor slabs.
Supported by walls a 0 no beams for beam supported slabs a slab on ground that is supported by piles still considered a slab on ground by aci. Even with the best slab designs and proper construction, however, it is unrealistic. Powered by a sophisticated fem solver increasing capacity and substantially speeding up solution for large and complex models, spmats v8. Ground supported floors groundsupported concrete floors are used in many types of building, ranging from simple houses through to schools, factories, and very large warehouses. Concrete floor slabs on grade are subjected to a variety of loads and loading conditions. The compressive stresses resist the anticipated tension stresses induced by the soil movements, enhancing the performance over a nonprestressed foundation. Concrete slab resting on grade containing steel reinforcement which consists of either a welded wire fabric or deformed reinforcing steel bars. Itn 11 design of groundsupported concrete industrial floor slabs publication year 1988 document status latest version of document. You can design a single span simply supported, fixed or cantilever or many continuous spans. The design of ground supported concrete industrial floor slabs. Tm 580912 concrete floor slabs on grade subjected to heavy. 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. The benefits of using flat slab construction are becoming increasingly recognized.
Typical industrial loading systems are described and several refinements are introduced. A2 slab thickness design by wri method a3 design examples using coe charts a4 slab design using posttensioning a5shrinkagecompensatingconcreteexamples chapter lintroduction l. Design with steel fabric reinforcement 103 e1 supplement to chapter 9, strength and serviceability of slabs 103 e2 extension to appendix b, thickness design of a groundsupported floor slab 103 e2. It addresses the planning, design, and detailing of slabs. The british cement association merged with the quarry products association and the concrete centre to form the mineral products association and is. The design procedure includes determining slab thickness based. The research is focused on punching shear failure of reinforced ground supported slab. Slab design reading assignment chapter 9 of text and, chapter of aci31802 introduction aci318 code provides two design procedures for slab systems. The design procedure set forth in that publication had at that time been in use by the author for about 15 years.
In many domestic and industrial buildings, a thick concrete slab supported on. Develops the design methods in technical report 550 design of floors on ground. A set of general load tables for various types of loading on industrial slabs is provided and a system of loading categories proposed. Soil investigations it is considered imperative that a soils investigation be made on any site on which a design is to prepared. 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. Concrete slab rest ing on grade cont aining steel reinforcement which consists of either a welded wire fabric or deformed reinforcing steel bars. The result is a lightly reinforced slab designed to offset the effects of temperature and shrinkage of the concrete. Guidance on the design and construction of ground supported concrete floors was originally developed and. Design and detailing of reinforced concrete beams and slabs. Ground supported floor floor supported on original or improved ground, where universal uniform support from the ground is assumed. Sorry if this subject has allready been discussed previously. A ground supported slab is constructed directly onto a subbase, where uniform support from the ground is assumed.
The primary design issues for stiffened slabs on grade are the sizing of the beams that stiffened the slab and the spacing of the beams. Ground supported floors ground supported concrete floors are used in many types of building, ranging from simple houses through to schools, factories, and very large warehouses. With some limitations, reinforcement for slabs can be sized using the subgrade drag theory in order to increase the spacing of control or construction joints. Concrete floor slabs on grade are subjected to a varie ty of loads and loading conditions. Aug 23, 2017 model and design slab on ground, end bearing piles and friction piles using the inducta software. Tf 700r07 page 2 residential slabonground construction. Concrete beam, column, slab and foundation design in the axisvm structural analysis and design software.
Model slab on ground using either the winkler model or soil structure interaction. Building structure building foundations ground floors publisher history. Steelreinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior paving see below. The slab itself is usually set at a thickness of 0. Technical information ground supported slabs are not rafts and do not have the ability to span over soft zones or poorquality subsoil. Reinforced concrete design 1 design of slab examples and. Building structure building foundationsground floors publisher history. The use of the general load tables is illustrated by.
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. After this publication, it was subsequently adopted by the uniform building code ubc as. 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. A2slab thickness design by wri method a3design examples using coe charts a4slab design using posttensioning a5shrinkagecompensatingconcreteexamples chapter lintroduction l. Grdslab concrete slab on grade analysis spreadsheet. The design procedure includes determini ng slab thickness based. The thickness of a floor slab must be determined early in design because the weight of the. Simply supported one way slab a rectangular reinforced concrete slab is simplysupported on two masonry walls 250 mm thick and 3. This guide presents information on the design of slabson ground, primarily industrial floors. Analysis of concrete slabs on grade spreadsheet grdslab is a spreadsheet program written in msexcel for the purpose of analysis of concrete slabs on grade. Ground supported slabs are frequently designed with a single layer of reinforcing. Dec 15, 2017 analysis of concrete slabs on grade spreadsheet grdslab is a spreadsheet program written in msexcel for the purpose of analysis of concrete slabs on grade.
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