Timber Concrete Composite Floor
Review the structural design principles and processes associated with timber concrete composite floor systems.
Timber concrete composite floor. Lay 6 mil polyethylene sheeting over the concrete to minimize moisture migration from the concrete up into the wood flooring. This paper describes tests on a novel composite floor system constructed by connecting prefabricated concrete slabs to timber joists. Treated plywood to the concrete with concrete screws spaced every 16 in. Timber concrete composites tcc are structural elements in which a timber component is connected to a concrete layer such to form a composite.
The beech boards are approx. Further testing and precedent projects are needed to form. The floor system can be combined with other framing systems as needed for overall performance. Futurebuild lvl timber concrete composite tcc floors represent a move to optimise the advantages of both laminated veneer lumber lvl beams and a concrete screed slab combined using defined and tested connection methods to provide composite action.
Metal plates embedded in the concrete slab and either nailed or glued to the joists. The timber and concrete are bonded by means of 15 mm deep rectangular notches in the timber board. 40 mm thick and the concrete is 160 mm thick. Although the technology was only introduced to new zealand in 2012 concrete slabs screeds have been added to timber floors for decades in.
Alternatively screw rows of treated 1x4s to the concrete 16 in. Lighter structures using timber as a primary component of the structure results in a lighter structure overall than a traditional steel frame or cast in place concrete scheme. Using timber concrete composite tcc floors in multi storey buildings is a viable lightweight alternative to other flooring systems that offers potential cost savings and environmental benefits. Describe timber concrete composite floor systems and their use in modern mass timber buildings.
Demonstrate how timber concrete composite floor systems can satisfy the structural serviceability acoustic and fire requirements of. Seven types of shear connectors have been developed and tested. The floor system has a unique combination of low weight spanning capability and sustainability. Timber concrete composite systems offer many advantages when compared to single material schemes including lighter floors lower embodied carbon and longer spans.
Lag screws either alone or combined with a notch cut from each timber joist. The advantageous properties of both materials are exploited and favourable structural and building physics floor performance is achieved if compared to timber floors. Either timber panels or beams can be used and there are many methods of creating composite action between the timber and concrete. Dowels embedded in the concrete and.
Timber concrete composite panels can be used as floor panels or wall panels. Timber concrete composite floor systems represent a new technology within the united states. That is the conclusion of an innovative trans tasman study funded by fwpa.