Fire resistance of extruded hollowcore slabs dtu orbit. Keep the dunnage accurately aligned from slab to slab. Hollowcore slabs with castinplace concrete toppings. Hollowcore slabs vary by depth, length and loading performance with the standard width of a slab being 1200mm. Hollowcore residential applications county materials. Download this free 2d cad block of a dynamic hollow core concrete block. Hollowcore slabs are available in a range of seven depths. Hollowcore commercial applications county materials. New applications of hollowcore components in housing, administrative, and public buildings by farnaz a. Because of hollowcores high loadbearing capacity, it can handle unique design loads from tile and stone floors, fireplaces, wall partitions, columns and even oversize vehicles.
Hollowcore slabs have excellent span capabilities, achieving a capacity of 2. To obtain a higher slab thickness, normal carbonate concrete field topping can be added to gain a higher total slab thickness. Units are installed with or without a structural screed, depending on requirements. Hvac, plumbing and electrical chases, hatch access at roof, trash chutes and skylights. Pci manual for the design of hollow core slabs second edition by donald r. Precast concrete is highly fireresistant and an excellent material for compartmentalization as it slows the. Used as roof and intermediate floor formers in building the industrial, business and nonresidential facilities and residential buildings. T he general contractor and other trades are responsible for design. The slab has been especially popular in countries where the emphasis of home construction has been on precast concrete, including. A hollow core slab, also known as a voided slab, hollow core plank or simply a concrete plank is a precast slab of prestressed concrete typically used in the construction of floors in multistory apartment buildings. New applications of hollow core components in housing, administrative, and public buildings by farnaz a. The voids in each slab usually have a diameter that is equal to approximately 23 to 34 of the slab section, while the thickness of each plank is. Hoogenboom delft university of technology, faculty of civil engineering and geosciences, delft, the netherlands this paper provides a procedure for finite element analysis of hollow core slab floors, which may be necessary in case of large floor openings.
The slab has been especially popular in countries where the emphasis of home construction has been on precast concrete, including northern europe and former. Maximize space in any house plan with hollowcore roof and floor systems. Reinforced concrete hollowcore slab is made with cores in one direction with the following points. Reinforced concrete hollow core slab is made with cores in one direction with the following points. Minimum end bearing is 75mm unless specified otherwise on drawings. Voids do not update when the width of the hollow core slab is modified. Hollowcore slab details drawing labels, details, and other text information extracted from the cad file translated from spanish. It also creates wide open spaces without the need for columns, trusses or joists. As more residential covenants dictate restrictions, hollowcore helps home owners gain more usable space. Hoogenboom delft university of technology, faculty of civil engineering and geosciences, delft, the netherlands this paper provides a procedure for finite element analysis of hollowcore slab floors, which may be necessary in case of large floor openings. As betoneks manufactures six different types of hollow core slabs.
Installation hollowcore slabs are to be located and installed in accordance with expocrete drawing. Hollowcore slab dwg detail for autocad designs cad. Hollowcore solutions slab section and material properties 203 x 1220 net area 8,685 mm2 moment of inertia 683. The planks are produced in our plant using an ultra span machine. Hollow core covering slabs are characterized with possibility to be used in the situations with increased spans andor loading, guaranteeing signi. Hollowcore slab precast slab depth mm structural topping depth mm total depth mm self weight knsq. Create a hollow core type family revit products 2018. A complete revision of the diaphragm chapter includes the latest design information.
Our prestressed hollowcore slabs, also called hollow core planks, concrete planks or voided slabs, are available in a variety of lengths and thicknesses. The success of this precast product is owing to the combination of. Prepared for the pci hollow core slab producers committee john e. Bolted connections under hollowcore slabs, steel beam. Beroukhim submitted to the department of architecture may 8, 1985.
Hollowcore flooring technical manual 2003 hollowcore flooring is a technical manual covering the design and construction of projects utilising precast hollowcore flooring. Adobe acrobat reader is free and can be downloaded here. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Pci manual for the design of hollow core slabs and walls, 3rd edition free pdf download mnl12615 this manual presents in detail design of hollow core slabs for gravity and lateral loads. Other topping materials such as gypcrete can be added to achieve a fire endurance using different tables. Samples of concrete foam details the cad details on this page are just some of the cad details available in this categorylibrary.
Hollow core slabs precast india infrastructures pvt. Details are available in both adobe acrobat reader pdf and cad dxf format. Slabs arrive onsite with a smooth prefinished soffit. Hollow core slab properties prop imperial metric a 290. Pcimanual for the design of hollow core slabs second edition bydonald r. The topping may increase the flexural strength, shear strength, and bending stiffness of the slab if composite action is developed with the hollowcore units.
Hollowcore is easy to work with and accomodates other building trades. However, the slabs can be manufactured to suit the specifications of your construction project. Hollow core slabs hcs were developed in the 1950s when longline prestressing techniques evolved. Dxf files can be imported directly into many common cad programs. Hollow core slab properties prop imperial metric a 235.
The slabs are typically 4 feet wide with standard thicknesses of 8 and 12. The third edition of the manual has added hollow core wall panels and. Saccoman, chairperson james beerbower ernest markle kevin boyle james markle jeffrey butler milo j. This dynamic cad model can be used in your structural design cad drawings. Failure modes and shear design of prestressed hollow core. Hollow core slabs are prestressed, precast concrete slabs, with hollow portions in the regions of zero stresses.
Each cad and any associated text, image or data is in no way sponsored by or affiliated with any company, organization or realworld item, product, or good it may purport to portray. The longspan capability is ideal for offices, retail or car park developments. The topping may increase the flexural strength, shear strength, and bending stiffness of the slab if composite action is developed with the hollow core units. Mnl126 manual for the design of hollow core slabs free pdf. Formulas for homogenisation of the floor properties. Panels with the heights of 150, 220, 265 mm designation bep are manufactured using extruding method, i. Plank bearing details midstates concrete industries. Concrete foam detail sample drawings autocad details. Topping concrete cylinder strength at 28 days, fct 240 kgcm2. This comprehensive and easy to use resource has been divided up into the different project stages design approach, preplanning, preliminary design, final.
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