Analysis On Seismic Performance Of A Tall Connecting Buildings

With the development of high-rise building structures, tall building structures because the diversity of its innovative and unique structure and architectural features, has been in the construction industry practitioners and designers most widely recognized. Existence corridor makes complex architecture, the forces than the average single-tower structure more complex, there will be serious Torsional phenomenon. In the external load, the corridor need to be coordinated by the original independent vibration and deformation of the two towers.In this paper, practical engineering background, using the finite element software SAP2000 structural finite element model. Siamese two buildings architecture for high-rise structures, 14 on the ground floor, first floor storey 5.1m, the remaining layers of 3.9m, the structure of the total height 55.8m, towers for frame shear wall structure, 24 m span steel truss corridor located 11 layer structure, rigid connection connected towers.In this paper, the tall building connected structure modal analysis, modal response spectrum analysis and time history analysis of the seismic performance of twins tall structure was studied. Comparative analysis of different connections to compare the theoretical analysis and model for similar projects to explore design examples connectivity solutions, making the corridor and the main structure, the main structure between the main structure and work together to improve the seismic performance of the overall structure. Based modal response spectrum analysis method, using the finite element model of the factors affecting the seismic response Siamese twin towers were analyzed, including the location and number of layers change corridor, summed up the seismic performance of these factors on the structure of the two buildings the degree of influence, the theoretical basis for the engineering design, design guidelines are given.