Research on calculation methods for base-isolated shear wall structure with bending scissor characteristics
The base-isolated shear wall structure has bending scissor characteristics lateral displacement curve under the action of strong earthquake.Timoshenko beam was used to simulate the dynamic characteristics and isolation effect of the base-isolated shear wall structure after seismic isolation.The dynamic behavior of the base-isolated cantilever beam in earthquake was deduced,it is proposed that prolonging the period,reducing the participation mass coefficient of high-order mode shapes and increasing the damping ratio of the system are the three major factors of vibration isolation technology.It is pointed out that increasing the structural damping can effectively improve the seismic isolation effect of long-period high-rise structures.Seismic isolation can also reduce the earthquake effect of higher modes for the complex high-rise structure.
NETL
NSTL
万方数据
维普
