All our slabs come standard with a one hour fire rating, which can be increased to a two hour rating if required. However, there are situations which are unique to hollow core slabs either because of the way the slabs are produced or because of the application of the slabs. The first by using lightweight coarse aggregate crushed brick and second is by using hollow core. Hcs are advanced products in the prestressed precast concrete industry, especially in terms of efficient use of material low selfweight, and given their high quality due to the efficient production line manufacturing process. Hollow core slab free downloads, list 1 download hollow core slab software. Hollowcore plank can be used in residential, commercial, and industrial applications. Pdf analysis of hollowcore slab floors researchgate. The hollowcore slabs used in the pushout tests were made of concrete with a compressive strength of approximately 50 mpa. Ultralight precast hollowcore design resources for specs. Hollow core slab can be served with different supporting assemblies such as, brick built walls, steel structures, concrete constructed walls and more hollow core slab application, n. Innovative casting system in the manufacture of prestressed flooring units gives many advantages compared to traditional hollow core units. Computation of a hollowcore slab floor in two steps section forces and approximated representative volume of a hollowcore slab. Hollowcore is a prestressed concrete slab manufactured with continuous voids to reduce weight and cost.
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. Usual precast hollow core concrete slabs are shown in. Ventilated hollow floors plastic domes and modules for ventilated hollow floors formwork formwork and domes for hollow core slabs plastic ventilated hollow floors plastic plastic domes and modules for. These precast concrete slabs can be manufatured in a variety of specs. Manual for the design of hollow core slabs second edition by donald r. Fast process with elislab, no time is wasted for going back and forth between different programs and documents. Please keep in my mind this is a totally new program for us. I ask this because the default hollow core you can download from autodesk seek is not a correct representation of our hollow core slabs see attached pdf. Oreilly concrete hollowcore thermal floor slabs are prestressed concrete elements with continuous longitudinal voids formed using polystyrene void formers. The concrete distribution system has been supplied by marcantonini and consists of a 2 m.
The batching plant was made by speco which is a korean company. Bubble deck slab seminar report, ppt, pdf for civil. Filling in the voids topping, take 2 coreslab structures. Din en 1168 precast concrete products hollow core slabs includes amendment a3. While this approach is regarded as an effective method to reduce the dead load of slabs and to increase the imposed load carrying capacity, limited technical information exists about the benefits of hollow core concrete slabs and their structural performance. The instant invention pertains to various hollowcore slabs used, for example, in various construction applications.
Further technical information on this procedure is available on request. Precast hollow core slabs are typically 1200mm in width and about 20m in length. For 200 mm slabs and slabs with flat webs the overestimation was tens of percent. Failure modes and shear design of prestressed hollow core. The prestressed hollow core slabs are tender, light weight products which help in construction of thinner floor. Aec 3d culvertsslabs is a solution helping civil engineers to quickly design and plan slab type cross. Our approach is founded on over 20 years of technical knowhow and precast manufacturing experience aligned with low overhead costs, people on the ground supporting a global customer base and an internationally proven hollow core production system that provide their customers with a competitive advantage and a manageable and affordable solution. Check here if you wish to receive emails from spancrete. Lafarge precast edmonton lafarge precast hollowcore slabs. Hollow core slabs are actually precast, prestressed concrete. The main issues were the compression behaviour of the hollowcore slabs and the transfer of the horizontal shear forces between the steel beam and the concrete slab.
Mnl126 manual for the design of hollow core slabs free pdf. Design analysis of prestressed hollow core slabs on flexible support. It helps providing strong and consistency to your construction project. Design analysis of prestressed hollow core slabs on flexible support, publisher. The units have a smooth finish and maximum capacity of 2. Slabcolumn systems with shear walls these systems rely on shear walls to sustain lateral load effects, whereas the slabcolumn structure resists mainly gravity loads. A complete revision of the diaphragm chapter includes the latest design information. Pulling and attaching prestressing wires or strands 3. Pci manual for the design of hollow core slabs and walls, 3rd edition free pdf download mnl12615. The slabs usually include a body with upper and lower shelves joined by two or more substantially vertical ribs and cavities extending longitudinally through the slab body. Use of precast hollow core slabs in high rise buildings. Ultraspans hollowcore extruder technology uses a concrete mix that produces a high quality slab with an optimal watercement ratio. It is primarily used as a floor and roof deck system. To download our design files to assist in your drawings, please provide your email address.
Hi does anybody know of good ways to treat hollow core slabs when analysing a structure. From the abstract of hollowcore slabs with castinplace concrete toppings. Prestressed, precast hollowcore slabs are used extensively for floor and roofing systems in precast concrete construction in saudi arabia. Elematic sa technical specifications, standard slab widths. Reinforced concrete hollowcore slab is made with cores in one direction with the following points. Shop jeldwen flush unfinished flush hollow core veneer slab door common. Introductionpurpose of manual the application and design of precast, prestressed hollow core slabs is similar to that of other prestressed members. Hcs are advanced products in the prestressed precast. Common construction practice includes applying cementitious grout between hollowcore units as a bonding agent.
You might have seen and used hollow blocks for building walls which are very effective as an insulation and light weight partition option. As an example, in regard to mechanical resistance en 369 cl 4. Explore bubble deck slab with free download of seminar report and ppt in pdf and doc format. Formwork and dome for hollow core slab cupolex rialto by. Hollowcore precast slabs are commonly used for floor and roof structures in this type of construction, as shown in figure 9. Comparision of quantity of concrete and quantity of steel for hollow core slab building and solid slab building. Hollow core slabs hcs were developed in the 1950s when longline prestressing techniques evolved.
In the second series, the height was 150 mm or 200 mm, and the hollowcore was circular. The size of these elements will typically range in width from 600 to 2400 mm, in thickness from 150 to 500 mm, and can be delivered in lengths of up to 24 m. This is achieved by using sufficient slab thickness and concrete cover for strands. Saccoman, chairperson james beerbower ernest markle kevin boyle james markle jeffrey butler milo j. Precast, prestressed concrete hollow core load bearing. Jeldwen flush unfinished flush hollow core veneer slab. The product is made from no slump concrete with modern technology. The eurocode 2 method overestimated the mean shear resistance of all tested slab types. Precast concrete hollowcore slabs provide long spans with cross sections that reduce the height of the building, saving material cost, and the inorganic composition of precast concrete hollowcore slabs enhances fire protection. Download the catalogue and request prices of cupolex rialto by pontarolo, formwork and dome for hollow core slab. In this research, two types of reduction in weight can be obtained. Plans locating and defining all hollow core planks furnished by the manufacturer, with all major openings shown. The height of the hollowcore slabs was 160 mm or 210 mm in the first series. This type of slabs are costeffective, quick to assemble and build, have lower selfweight, use less raw materials etc.
Precast concrete hollowcore slabs lafarge precast edmonton. Cpac hollow core slab is applicable for ordinary buildings, large buildings, and factories. Pdf design analysis of prestressed hollow core slabs on. Two or more reinforcements extending longitudinally through the respective upper and lower shelves of the. Also explore the seminar topics paper on bubble deck slab with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year civil engineering ce or ieee civil construction btech, be, mtech students for the year 2015 2016. This manual presents in detail design of hollow core slabs for gravity and lateral loads. Hollow core flooring systems provide safe, solid and secure flooring for your needs. Key attributes of hollowcore plank are longer spans, higher durability, and increased fire ratings. In addition to the experimental work described, an analytical study is conducted and design recommendations are made. Shop jeldwen camden primed 2panel arch top hollow core molded composite prehung door common. Item detail mnl126 manual for the design of hollow core slabs. Download your reinforcement strand calculation demo from the link below.
Hollowcore is an extruded prestressed concrete slab with continuous voids to reduce weight and cost. Bolted connections under hollowcore slabs, steel beam. Item detail mnl126 manual for the design of hollow. A further aim is to provide a method by which individual hollow core slabs may be cut without. Connections in concrete wall gaskets, concrete wall.
Thank you for your interest in including spancrete products in your upcoming project. Similarly there is a concept recently introduced as hollow slab or hollow core slabs. Hollowcore slabs and wall elements without prestressed steel wire can be formed by extruders. Resistance of prestressed hollow core slabs against web. Finite element modelling of hollowcore concrete slabs. Details hollowcoredetails hollowcore just click below to download a pdf or dwg detail. Precast concrete hollowcore slabs are often constructed with a castinplace concrete topping on site. It suits for use at precast plants and design offices alike. I know that some people model the slabs with correct thickness, defines density 0, and then defines a load for the deadweight of the slabs. Headed steel stud connectors for composite steel beams. Comparision of behaviour of hollow core slab building and solid slab building for different seismic zones keeping the member size same for all models. Additional reinforcement can be incorporated into hollowcore slabs to accept bolt on steel. To check the validity of the method, 49 shear tests on hollow core slabs with thickness 200. Used as floorceiling assemblies, hcs slabs have the excellent acoustic, but can.
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