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Beschreibung:
With the development of large cross laminated timber (CLT) plates, a new field of possibilities for timber construction has opened. Combined with the invention of a rigid, momentresisting connection between CLT plates, it is possible to create structures like it was so far only achievable with reinforced concrete. The CLT elements can be placed next to each other on the construction site and be connected with the newly developed bonding system of the company Timber Structures 3.0 AG. In the end, the connected plates are vertically only supported by columns and thus create a timber flat slab. Since no additional vertical load carrying elements, such as beams, are needed in flat slabs, this structural system is highly desired in office or industrial buildings, as it adds flexibility to a building and therefore increases its value. Besides the necessary rigid connection between the CLT elements, a column-slab connection which is able to support one slab, while at the same time transferring vertical loads from upper storeys through the slab, has to be analysed as well, since the knowledge about this connection is still limited. The vertical load transfer is achieved by cutting an opening in the slab and connecting the columns with the corresponding counterparts right through this opening. The present thesis focuses on the column-slab connection in timber flat slabs made of CLT. The aim is to provide the basis of design, so that engineers are able to safely design such a connection. The topics of compression perpendicular to the grain, rolling shear, bending stress concentration and calculation methods are the crucial points in the design process. Since the rolling shear strength of timber often limits the load carrying capacity of column-slab connections and a requirement in the research project was to refrain from using metallic fasteners, novel solutions to achieve a sufficient load carrying capacity had to be developed. Within this thesis four experimental campaigns were conducted, accompanied by numerical ...