Only semiskilled labour is required for this type of construction. Reinforcement detailing of a slab is done based on its support conditions. The abovegrade masonry walls of the twostory minnesota home used 6inch thick hollow core blocks with the addition of vertical steel reinforcement bars. Before laying of the concrete blocks its necessary to plan and know the number of blocks to be used and how they will be placed. Then, in the project, place them on a level just as you would in real life. A detailed floor layout drawing a detailed layout drawing design and engineers certification design and engineers certification a site visit to confirm access, readiness delivery to site of materials supplied and conformity to drawings according to the dimensions given on the as built site measurements architectural drawing. Arcat free architectural cad drawings, blocks and details for download in dwg and pdf formats for use with autocad and other 2d and 3d design software. It is also found to be a costeffective disaster resistant construction system, as explained in the next section. Miscellaneous antiquated systems masonry, draped mesh slabs, brick arch. Hollowcore slab dwg detail for autocad designs cad.
Insitu topping the building contractor shall provide a wellcompacted insitu structural concrete topping to the floor planks as detailed. Introduction hollow block and ribbed slabs are formed by placing blocks on the slab and concrete ribs. Some of them are outdated and many of them are frequently used everywhere. Sketch on hollow pot slab plan slab dimensions hollow pot slab width, b 3. The machine can accommodate interchangeable mould for producing blocks of different sizes of hollow or solid blocks. When separate reinforced concrete columns or concrete block. Adobe acrobat reader is free and can be downloaded here. Slab may be supported on walls or beams or columns.
For design such this slab i mean detailed reinforcement can be in robot. Dec 27, 2016 dec 27, 2016 hordy slab hollow block slab. Cad forum cadbim library of free blocks concrete2c slab. Slab supported on two sides and bending takes place predominantly in one direction only is called one way slab. The abovegrade masonry walls of the singlestory ohio case study home were built with 8inch thick hollow core block. Pci manual for the design of hollow core slabs and walls. Hambro d500 structural floor system, hambro joist concrete. Create a family representing your precast hollow block, or a whole row of them. Using the chalk line as a reference, the guys laid a bed of mortar and began laying block. Interior walls may be supported by thickening the slab under the wall and. Yasser workwebsitepdf07 slabs02 hollow blocks slabs. Dxf files can be imported directly into many common cad programs.
Building codes and preparing construction drawings. Bolted connections under hollow core slabs, steel beam. May 21, 2017 there are 16 different types of slabs in construction. The depth of ribs excluding topping should not exceed four times. Advantages disadvantages proportions for ribbed slabs without permanent blocks are set out in bs 8110 section 3. Download this free 2d cad block of a dynamic hollow core concrete block. This dynamic cad model can be used in your structural design cad drawings. May 14, 2016 concrete finishing techniques how to mag float, edge, and broom a concrete slab duration.
Beam and block floor external bearing wall dwg pdf. The blocks are considered as nonstructural element as they do not contribute to strength of. In general, it is seen that in solid slab a portion of concrete below the. Mike day everything about concrete recommended for you. Concrete finishing techniques how to mag float, edge, and broom a concrete slab duration. Penetrations and chases to the hollow core planks shall be in accordance with details agreed by the structural engineer and the product manufacturer. Any reinforcement required shall be placed as detailed on the drawings. After each section, excess mortar and broken pieces of block were used to fill the corners for. Details are available in both adobe acrobat reader pdf and cad dxf format. Please practice handwashing and social distancing, and check out our resources for adapting to these times. The blocks are available in a standard face size of 440 x 215mm and in thicknesses of 140mm. If they are integral to a poured in place slab, create it too, then cut it with your the hollow block families that you placed. Connections in concrete wall gaskets, concrete wall. The need for existing structural drawings as a part of the evaluation of an existing structure is.
Columns and deck not designed to resist longitudinal bending very flexible. It is also found to be a costeffective disaster resistant construction system. Twoway joist concrete slab floor waffle slab system analysis and design. For flat plate slab system, the minimum slab thickness per aci 31814 are. Reinforced concrete upstand beam with rib and block slab at same soffit level. In case of hollow block slab voided blocks are placed to reduce the total weight of the slab. Free cad detailsprecast concrete slab detail iso cad. The abovegrade masonry walls of the singlestory ohio case study home were built with 8inch thick hollowcore block. Insitu topping the building contractor shall provide a wellcompacted insitu structural concrete topping to the floor planks as detailed on the drawings.
Design for earth loads retaining walls, which set out a design methodology and safe load tables for these structures. Each block was checked for level and that it followed the string. Hollowcore precast flooring yorkshire 01924 464283 london 0203 553 8044. Hollowcore slab details drawing labels, details, and other text information extracted from the cad file translated from spanish. Cad blocks and files can be downloaded in the formats dwg, rfa, ipt, f3d. Hollow blocks have a minimum crushing strength of 3. Slabs are usually used in floor and roof construction.
In case of ribbed slab the blocks are not permanent. Concrete blocks are produced in a large variety of shapes and sizes. What are the steps in properly laying concrete blocks. In this article, ill give a detailed explanation of each slab where to use particular slab. Heavy arch ribs designed to resist axial force and bending.
Download free, highquality cad drawings, blocks and details of precast concrete organized by masterformat. How to build a concrete block foundation one project closer. The lateral loads are independently resisted by shear walls. Slab design reading assignment chapter 9 of text and, chapter of aci31802 introduction aci318 code provides two design procedures for slab systems. The essential ingredients of concrete are cement, aggregate sand, gravel and water. Hollow core precast floor slab, cores parallel to wall dwg pdf. Precast concrete stairs normally installed with fabepanel system. In order to view pdf documents, you must have adobe acrobat reader installed.
Waleed abo elwafa mohamed, seismic capacity of rc hollow block slab bu loglqj 2. The moulded hollow blocks resting on the pallet is removed and a new pallet is placed and the process repeated. They are manufactured to bs en 77 using class 1 limestone aggregates. Description of original building the case of study original building is a reinforced concrete hollow block slab building which can be used as a commercial one, the building is not designed according t o seismic standards. Slab supported directly by columns are called flat slab. According to the way loads are transferred to supporting beams and columns, slabs are classified into two types. The abovegrade masonry walls of the twostory minnesota home used 6inch thick hollowcore blocks with the addition of vertical steel reinforcement bars. If you would like to download the entire detail set in one archive, please click the link below. These cad drawings are free download nowspend more time designing, and less time drawing. X is the hollow block slab volume m with drop be ams.
In general, it is seen that in solid slab a portion of concrete below the neutral axis remains ineffective. This system can be used for basement, first floor and roof slabs. There are 16 different types of slabs in construction. Jul 02, 20 introduction hollow block and ribbed slabs are formed by placing blocks on the slab and concrete ribs. Since 1994, weve been researching, designing and manufacturing concrete slab products for. In addition the thickness of the block material above its void should be not less than 20 mm nor less than onetenth of the dimension. Hollowcore planks may be used to produce a diaphragm to resist horizontal forces, either with or without a structural topping. It is a faster and easier construction system, when compared to the other conventional construction systems. Moreover it is also important to see if the edges are proper and sharp in case of exposed use of blocks. Structural steel composite stubgirder construction. Twoway joist concrete slab floor waffle slab system.
Where concrete block is above and below equipment platform, fit block tight to. By downloading and using any arcat cad detail content you agree to the following license agreement. Yasser workwebsitepdf07 slabs02 hollow blocks slabs model 1 author. Design the concrete floor slab system shown below for an intermediate floor with partition weight of 50 psf, and unfactored live load of 100 psf. In 1990 the concrete masonry association of australia cmaa published masonry walling guide no 4. Free cad and bim blocks library content for autocad, autocad lt, revit, inventor, fusion 360 and other 2d and 3d cad applications by autodesk. Pdf preliminary estimate for reinforcement steel quantity. We are dedicated to be the best cad resource for architects,interior designer and landscape designers. Reinforcement detailing of reinforced concrete slabs. Mar 31, 2016 swirnow structures offers the best cost on hambro d500 structural floor systems, hambro joists, and structural floor joist systems. Concrete blocks technical data short description concrete block construction has gained importance and has become a valid alternative to fired clay bricks. Hollow core precast floor slab external bearing wall. We offer two sizes of hollow concrete block to complement our range of solid dense blocks. Height of hollow block, h mm topping to be placed on top of hollow blocks, t mm 01 0635 as 510.
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