The Analysis On Influence Of Shear Wall Setting To Twin-tower Structure With Transfer Storey On Sesimic Perfomance

In today's high-speed economic development, tall buildings have also been rapid development, the height of the structure is more and more high, and the system of the structure is more complex.In the use of functional requirements, the lower layers of the building need large space, resulting in the lateral stiffness of the vertical structure a larger change. So people often set up the transfer story as structural transformation.How to set the shear walls, control the stiffness of the upper and lower lateral stiffness of the transfer story, the influence of seismic response on the stiffness change of the structural , are the focus of structural design . The relative research and practical experiences are not sufficient and that is the object of this thesis.In this Paper, taking complex tall building with high position transfer story and mutli-towers as a example, using domestic and foreign famous engineering analysis program pkpm and ansys, carry on systematic research. The influences of the different upper and down stiffness on seismic response of complicated tall buildings are investigated, the advantages and disadvantages of each layout are compared, some suggestions to the building are given and some general rules and conclusions are summarized.The analysis of a reality shear wall structure with transfer beam indicates that shear wall structure with supporting frame is a disadvantageous structure system to seismic action. But if the amount of the shear wall is under reasonable choice and the up and down stiffness of the transfer story is under well control, it can show good dynamic characteristics.The results of the analysis of finite element method indicate that the supporting column nearby transfer story is an unsubstantial position to seismic because of its serious concentrations of deformation and major principle stress.The transfer story and nearby area should be strengthened in principle design.The analysis results of finite element method also show that the biggish axial force presence in the supporting column could not be neglected in design.