This master’s thesis presents the development of a novel shear connection for a hybrid steel-timber composite (STC) ceiling system. Shear forces are transmitted via a steel cam into a notch filled with grouting concrete in a cross-laminated timber panel. The formfit connection is characterised by material efficiency and suitability for series production. The investigations comprise three successive series of double-symmetric push-out tests that realistically represent the shear loading, record the load–slip behaviour, and determine key parameters for load-bearing capacity and deformation properties. A design proposal links the findings of the experimental investigations to structural mechanics models forming the basis for structural design verification. In addition, the influence of moisture ingress and bond formation is investigated. The developed shear connection meets the high performance requirements defined by the novel system and demonstrates a ductile failure mode.
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This master’s thesis presents the development of a novel shear connection for a hybrid steel-timber composite (STC) ceiling system. Shear forces are transmitted via a steel cam into a notch filled with grouting concrete in a cross-laminated timber panel. The formfit connection is characterised by material efficiency and suitability for series production. The investigations comprise three successive series of double-symmetric push-out tests that realistically represent the shear loading, record t...
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