Installation hollowcore slabs are to be located and installed in accordance with expocrete drawing. Minimum end bearing is 75mm unless specified otherwise on drawings. In order to view pdf documents, you must have adobe acrobat reader installed. Hollowcore slabs vary by depth, length and loading performance with the standard width of a slab being 1200mm. New applications of hollow core components in housing, administrative, and public buildings by farnaz a. Mnl126 manual for the design of hollow core slabs free pdf. Hollow core covering slabs are characterized with possibility to be used in the situations with increased spans andor loading, guaranteeing signi. S mall core drill openings include single plumbing risers, electrical lines, radiant heat tubing risers and roof drains.
Hvac, plumbing and electrical chases, hatch access at roof, trash chutes and skylights. 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. The longspan capability is ideal for offices, retail or car park developments. Hollowcore slabs have excellent span capabilities, achieving a capacity of 2. Download this free 2d cad block of a dynamic hollow core concrete block. Hollow core covering slabs are characterized with possibility to be used in. Beroukhim submitted to the department of architecture may 8, 1985. Hollow core slab cylinder strength at transfer, fci 250 kgcm2 cylinder strength at 28 days, fc 400 kgcm2. Saccoman, chairpersonjames beerbower ernest marklekevin boyle james marklejeffrey butler milo j. 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. Hollowcore slabs are available in a range of seven depths.
Reinforced concrete hollow core slab is made with cores in one direction with the following points. Hollowcore residential applications county materials. The third edition of the manual has added hollow core wall panels and. Fire resistance of extruded hollowcore slabs dtu orbit. Hollowcore slab precast slab depth mm structural topping depth mm total depth mm self weight knsq. This dynamic cad model can be used in your structural design cad drawings. This comprehensive and easy to use resource has been divided up into the different project stages design approach, preplanning, preliminary design, final. 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. Hollow core slabs are prestressed, precast concrete slabs, with hollow portions in the regions of zero stresses. Formulas for homogenisation of the floor properties. Used as roof and intermediate floor formers in building the industrial, business and nonresidential facilities and residential buildings.
The slab has been especially popular in countries where the emphasis of home construction has been on precast concrete, including northern europe and former. Pci manual for the design of hollow core slabs second edition by donald r. Details are available in both adobe acrobat reader pdf and cad dxf format. Hollow core slabs precast india infrastructures pvt. Precast concrete is highly fireresistant and an excellent material for compartmentalization as it slows the. Create extra living and storage space by using a homes entire footprint, even neglected space available under a garage, porch or stoop. Other topping materials such as gypcrete can be added to achieve a fire endurance using different tables. 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.
Our prestressed hollowcore slabs, also called hollow core planks, concrete planks or voided slabs, are available in a variety of lengths and thicknesses. Hollowcore slab details drawing labels, details, and other text information extracted from the cad file translated from spanish. Adobe acrobat reader is free and can be downloaded here. The slabs are typically 4 feet wide with standard thicknesses of 8 and 12. 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 flooring technical manual 2003 hollowcore flooring is a technical manual covering the design and construction of projects utilising precast hollowcore flooring. Units are installed with or without a structural screed, depending on requirements. Maximize space in any house plan with hollowcore roof and floor systems. Create a hollow core type family revit products 2018. Voids do not update when the width of the hollow core slab is modified. Dxf files can be imported directly into many common cad programs. Slabs arrive onsite with a smooth prefinished soffit. As more residential covenants dictate restrictions, hollowcore helps home owners gain more usable space. The success of this precast product is owing to the combination of.
The planks are produced in our plant using an ultra span machine. Hollowcore solutions slab section and material properties 203 x 1220 net area 8,685 mm2 moment of inertia 683. Hollowcore slab dwg detail for autocad designs cad. 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. Hollow core slab properties prop imperial metric a 290. Hollow core slabs hcs were developed in the 1950s when longline prestressing techniques evolved. The slab has been especially popular in countries where the emphasis of home construction has been on precast concrete, including. To obtain a higher slab thickness, normal carbonate concrete field topping can be added to gain a higher total slab thickness. The depth of each slab usually ranges from 110 mm to 400 mm with spans typically available up to 200 meters. Prepared for the pci hollow core slab producers committee john e. New applications of hollowcore components in housing, administrative, and public buildings by farnaz a.
Hollowcore is easy to work with and accomodates other building trades. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Keep the dunnage accurately aligned from slab to slab. 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. Panels with the heights of 150, 220, 265 mm designation bep are manufactured using extruding method, i. Installation hollow core slabs are to be located and installed in accordance with expocrete drawing.
It also creates wide open spaces without the need for columns, trusses or joists. Topping concrete cylinder strength at 28 days, fct 240 kgcm2. Hollowcore commercial applications county materials. Concrete foam detail sample drawings autocad details. A complete revision of the diaphragm chapter includes the latest design information. 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. Hollowcore slabs with castinplace concrete toppings.
However, the slabs can be manufactured to suit the specifications of your construction project. Plank bearing details midstates concrete industries. Hollowcore slabs are precast prestressed concrete elements extensively used for floor, roof slabs and wall panels. T he general contractor and other trades are responsible for design. Saccoman, chairperson james beerbower ernest markle kevin boyle james markle jeffrey butler milo j. Bolted connections under hollowcore slabs, steel beam. Reinforced concrete hollowcore slab is made with cores in one direction with the following points. Failure modes and shear design of prestressed hollow core.
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