seismic performance of hollow core floor systems iii 2 april 2009 foreword following concerns about the structural performance of hollow-core floors there was a clear need for guidance information to improve industry knowledge of the floor behaviour to promote consistent practice. the department initiated the development of these guidelines
concrete raised floor systems with a hollow epoxy coated steel frame filled with a light-weight concrete. concrete raised floor systems have become an industry standard for most it applications. wood core raised access flooring systems provide excellent durability and acoustic performance with a class 'a' flame rating.
early systems and development. prefab floor systems had already been introduced before the second world war. these varied from beam-and-block systems, hollow core slabs with typically only one hollow core, as opposed to the post-war counterparts with several adjacent hollow cores inside , and prefabricated slabs made with hollow bricks.
this document is intended to cover the primary design requirements for hollow core floor and roof systems. ininstances wherethe designis nodifferent thanfor otherprestressed members,the hollow core slab systems 1.1 methods of manufacturing ahollowcoreslabisaprecast,prestressedcon-crete member with continuous voids provided to reduce weight
spi hollowcore slabs offer the benefits of durability, low maintenance, fire resistance, sound control and speed of construction, all at a very competitive price. our hollowcore slabs are typically used as floor members in hotels, motels, apartments/condominiums, college dormitories, self storage facilities and multi-million dollar mansions.
core drills. m ost common large openings include: hvac, plumbing and floor system. large openings near the bearing may require and will impact camber. s mall core drilled openings can be placed anywhere provided they are located in the hollow void of the plank and are small enough that they do not cut any prestress-ing strand. any core
hollowcore can be used either as a solid floor or spaced to provide an even more economical flooring solution. learn more about the stahlton hollowcore read the safe operating procedure on the use of timber infills applicable for the spaced hollowcore option . new stahlton fibre-core
this compression strengthens the hollow-core unit and allows it to extend along greater spans. the risk of larger openings in hollow-core floors is the increased potential for cutting one or more of the prestressed strands embedded within the concrete, which could serve to weaken the structure.
maximize space in any house plan with hollowcore roof and floor systems. create extra living and storage space by using a home's entire footprint, even neglected space available under a garage, porch or stoop. as more residential covenants dictate restrictions, hollowcore helps home owners gain more usable space.