Numerical analysis of tall CLT-concrete buildings with mechanical connections

A finite element model is developed to simulate and analyze the lateral behavior of a wood-concrete skyscraper under wind loads. The main goal of the model is to obtain a flexible tool in order to determine horizontal stiffness and to be able to optimize choices regarding material of the core (CLT or concrete) and fastener type and spacing along the core-structure interfaces. First, a temporary model is used to estimate the distributed shear forces depending on type of fasteners and spacing. Then, by further modifying the core in terms of shape and material, the building is able to satisfy the sway requirement of high-rise buildings.