In order to improve the productivity of SAFI users, an automatic slab on grade generation function has been added. Figures 4-12 through 4-14 show variations where the slab is the primary location for insulation. The design of foundations is not included here. Some foundations used for light buildings on shrink-swell soils. Understanding the key benefits and disadvantages of both foundation types is crucial. 1). thermal expansion and contraction of the concrete 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. 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. Stiffened Slab on Grade Elevated Structural Slab on Piers Stiffened Slab on Grade and on Piers Thin Post Tensioned Slab Figure 1. {¶nÐ;l^}„:¿MÅٞÕÜeÙgÚOÚ£F»Äz ¨+ÈN ¢uV vN8D¸F ®0Ì¥ž›‰#°Ýø^¾ø”¸V( :)U 1-3. How will the slab be used? Slab-on-grade foundations … A short summary of this paper. Now, I just need to design my slab on grade for a relatively small uniformly distributed load (Live load = 4.8 kPa). H�TP�N�0��91$�@,U�����=���Hԉ�t�ߓD�;1ؖ����-��[G.��doz�0:���_� �qrU ֙�w%�Y���oKĹ��C����K� ���Q@~�Ev4%���IH����3RmG!�'��� �[@�K_�����A�4!4J�T�� ���+��2'���b$[p����Z�'� �j� The following defini tions have been adopted for the manual: a. Slab on grade. (3) The slab shall be reinforced with 10M bars spaced not more than 200 mm o.c. Stresses. Although cold-formed steel framing for floor systems also is permitted by the IRC, it is not covered here; rather, the reader is referred to the AISI Standard for Cold-Formed Steel Framing – Prescriptive Method for One- and Two-Family Dwellings (AISI, 2001) for guidance. A slab on grade with an independent stem wall is a concrete floor supported by the soil ... design procedures are used to design the connections between the foundation system and ... although other values may be specified. ³"¨[_—°VŒ €xQ|6Îü™jÔ ‡5ՄÆqǃPÓàŽÃ÷ªèH†Ë/’M²Ó͜wC‡Ão.Ï{R£1XÀ+8ÙÃéâ¨ÚÖ×? g. Check shear strengths at the columns. Shawn Lee. Slab Construction (1) Concrete shall be cast against form work in accordance with CSA A23.1, "Concrete Materials and Methods of Concrete Construction". A concrete foundation is an essential part of any building, vital to a home’s overall value and safety. For example, 3,500 psi concrete may be used for improved weathering resistance in particularly severe climates "Streses and Stains in Rigid Pavements" (Lecture Notes 3) - … RE: Slab-on-grade Design Chart for Axles with Single Wheels ACI 360 PCA 2001 “Concrete Floors on Ground” Ron (Structural) 11 Jan 19 01:28 Design your slab on grade as a pavement section using PCA method or AASHTO method. 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Concrete slab supported di-rectly on foundation soil. spMats, formerly pcaMats and MATS, is equipped with the latest American (ACI 318-14) and Canadian (CSA A23.3-14) concrete codes. What are the types and mag-nitude of the loads? a slab is subject to modular racking posts loads of 1000 lbs each in a grid of 6’x6’. "Slab Thickness Design for Industrial Concrete Floors on Grade" (IS195.01D) - by Robert G. Packard (Portland Cement Association, 1976) 5. Are there aesthetic requirements (e.g., is it acceptable to have random cracks or joints)? Mostly, the direct method is used for two way slab design. Get in touch with us to find out more about how Windmill Construction and the benefits of slab on grade. The recommendations derived from these and other studies vary from extremely light to extremely heavy. Example Model with Sample Input: In this example, a concrete warehouse floor with joints spacing 20’ o.c. The slab thickness is to be designed as 150 mm. … and Design of Residential Slabs-on-Ground, BRAB Report #33. design criteria outside the scope of this manual, industry standards are recommended. The following list shows what reinforcementcandofortheslab.Someofthesecan beachievedinnootherway: •ControlsCracking ... DESIGN EXAMPLES These design examples illustrate the selection of reinforcing steel for the purposes of controlling cracks … Related slab on grade foundation pages: any concrete slab placed on it. StructurePoint, formerly the PCA Engineering Software Group, offers concrete design software programs updated to ACI 318-14 for concrete buildings, concrete structures and concrete tanks. Design the minimum slab thickness to support a fork lift (specified below) and storage racks (specified below) throughout. Design a thickened slab to support the columns and concrete block walls supporting a 16 ft x 56 ft mezzanine. The design of footings and columns in the braced bays requires consideration of combined seismic loadings. A4.2—Design example: Equivalent tensile stress design. Snow Loading Analysis ASCE 7-05 Code for Buildings with Flat or Low Slope Roofs - for Balanced Snow, Drift, and Rain-on-Snow Surcharge Loadings Ice Loading Analysis (WT, MT & ST Shapes) ASCE 7-05 Code - Chapter 10- for Ice Loads Due to Freezing Rain on WT, MT & ST Shapes Ice Loading Analysis (W, M, S & HP Shapes) ASCE 7-05 Code - Chapter 10 - for Ice Loads Due to Freezing Rain on W, M, S, and HP Shapes Ice Loading Analysis (C & MC Shapes) ASCE 7-05 Code - Chapter 10for Ice Loads Du… "Design of Slabs-on-Ground" - ACI 360R-06 - by American Concrete Institute (2006) 4. When it comes to building your own home and home’s foundation, deciding upon which type of concrete foundation to utilize is a critical first step. qº"r¤íÇ]W‘Nºæó~©k¤À"ÚKéú`j`r3a¶åŽfC-|lÿë))h$ˆªN7&n?RÞDj[Aö endstream endobj 629 0 obj <>>>/Filter/Standard/Length 128/O(œÇ*¬éJbŽÜ—žÉŠTˆ™òþ;e.îÇXþ×&*)/P -1324/R 4/StmF/StdCF/StrF/StdCF/U(´…Ð]ÛR²ý„íËhG¼ )/V 4>> endobj 630 0 obj <> endobj 631 0 obj <> endobj 632 0 obj <>stream The Wire Reinforcing Institute recommends the use of the Subgrade Drag Theory for slabs up to 150 feet in length. The Ontario Building Code | Slab Construction 9.39.1.4. To design a slab on grade… Since slab strength and performance are so influenced by soil behavior, the slab designer should seek full informa-tion about the soil conditions on a giv-en site. %PDF-1.4 %���� So we have provided you with example PDF of the direct method. In those cases, they usually have grade beams and/or thickening of the slab below the concentrated load. A2-Slab thickness design by WRI method A3-Design examples using COE charts A4-Slab design using post-tensioning A5-Shrinkage-compensatingconcreteexamples CHAPTER l-INTRODUCTION l.l-Purpose and scope Consistent with the mission of ACI Committee 360, this report presents state-of-the-art information on the design of slabs on grade. slab-on-grade. Slab on Grade foundation, detail design; the basics. Design of Slab (Examples and Tutorials) by Sharifah Maszura Syed Mohsin Example 2: Continuous one way slab Figure 1 shows a clear area of 12 m x 8.5 m for a hall construction in a school. READ PAPER. Appendix 5—Design example using shrinkagecompensating concrete. concrete where the slab thickness, the joint spacing, and prism expansion are known Design of Slabs on Grade. Download Full PDF Package. H�\U T�����?�!�����ɢ. å¯7+6³WwNĸ§`ª¸‘V„„°ý¡“œx®¦è,œz" VÁ¸K†Ãm >%LÈ. A5.2—Example selecting the optimum amount of reinforcement to maximize the compressive stress in the. Here in Canada, you’ll generally see basement or crawl space foundations, but there is a third type you might have heard about: slab-on-grade foundations. endstream endobj 93 0 obj << /Type /Font /Subtype /Type0 /BaseFont /LFLNDN+SymbolMT /Encoding /Identity-H /DescendantFonts [ 98 0 R ] /ToUnicode 92 0 R >> endobj 94 0 obj << /Filter /FlateDecode /Length 27740 /Length1 43760 >> stream slab on grade The soil-structure interaction is an important component in the design of a building or any structure in general. (c) East 30'-6" 3'-9" 9'-0" 32'-0" West Siding: 6" concrete insulated sandwich panels. 4.2 Slab-on-Grade Construction Details . well as across the end walls. 33 Full PDFs related to this paper. Powered by a sophisticated FEM Solver increasing capacity and substantially speeding up solution for large and complex models, spMats v8.50 is widely used for analysis, design and investigation of concrete mat foundations, footings, and slabs on grade. 3D View Plan View Currently, we want to share you some portrait to find unique inspiration, whether the particular of the photo are beautiful galleries. "Design of Slabs-on-Ground" - ACI 360R-06 - by American Concrete Institute "Slab Thickness Design for Industrial Concrete Floors on Grade" (IS195.01D) - by Robert G. Packard (Portland Cement Association, 1976) "Concrete Floor Slabs on Grade Subjected to Heavy Loads" Army Technical Manual TM 5-809-12, Air Force Manual AFM 88-3, Chapter 15 (1987) Example of Design. A5.1—Introduction. BASIS OF FLOOR SLAB ON GRADE DESIGN 2-1. SLAB DESIGN Reading Assignment Chapter 9 of Text and, Chapter 13 of ACI318-02 Introduction ACI318 Code provides two design procedures for slab systems: 13.6.1 Direct Design Method (DDM) For slab systems with or without beams loaded only by gravity loads and having a fairly regular layout meeting the following conditions: A4.2—Design example: Using post-tensioning to minimize cracking A4.3—Design example: Equivalent tensile stress design Appendix 5—Examples using shrinkage-compensating concrete, p. 360R-72 A5.1—Introduction A5.2—Example with amount of steel and slab joint spacing predetermined Appendix 6—Design examples for steel FRC This paper. Figures 4-9 through 4-11, and 4-15 show configurations with insulation on the exterior surface of the foundation. In this section several typical slab-on-grade sections are illustrated and described. There are many different soil conditions and corresponding slab designs. b. Ligh t loads. We like them, maybe you were too. Given 2016 comes with its new trends and approach for slab on grade house plans. This normally comes down to slab-on-grade foundation versus basement foundation. Determining the PurPose of the slab Sound design of a slab on grade begins with determining the intended use and performance criteria. Download PDF. It was actually the widespread use of the “post-tensioned” slab-on-ground which induced this interest in design procedure and in many studies of reported slab failures. Reinforced concrete structural software includes programs for column design (pcaColumn), beam design (pcaBeam), slab design (pcaSlab), wall design (pcaWall), mat design (pcaMats), foundation design… crete slab on grade. The slab is supported on beams of size 225 x 500 mm spaced at 4.0 m centers. With the right design, the detractors of slab foundations can be reduced or done-away-with entirely, and the benefits can be maximized, making slab-on-grade a fantastic choice for home building in Ottawa. The 6” slab is supported on soil with a subgrade modulus of 100 kcf. Loads which consist of (compa - … The flow chart in the figure provides an orderly approach to ob-taining basic soils information (Ref. However, f. Design reinforcement for moments from steps d and e. Steps c – f needs to be done for both principal directions. result is a lightly reinforced slab designed to offset the effects of temperature and shrinkage of the concrete. (2) The slab shall be not less than 125 mm thick. ACI 360, "Design of Slabs-on-Grade", refers to this as a Type B slab. Definitions.