Numerical analysis of Influence of Connection Stiffness on Dynamic Behaviors of Connected High-rise Buildings

With the increase of the height, the lateral stiffness of high-rise buildings decreased. The high and flexible structures would have large movement when they are suffered lateral forces arising from earthquakes and winds. In order to investigate the influence mechanisms on dynamic behaviors of three-towers-connected high-rise building that caused by connection stiffness, various finite element models with different connection location and number are established and the dynamic properties are analyzed by finite element software ADINA. The results show that the influences of connection stiffness on structural natural cycle are obvious, and the impacts on displacement and acceleration response are minor.