Abstract:
Based on a frame-type metro station in Shanghai certain soft soil site,a shaking table model test is carried out. By inputting seismic waves with the same peak acceleration and different frequency components at model base, the effects of seismic waves with different spectral characteristics on near-field and far-field acceleration, station structure dynamic response such as acceleration, dynamic strain, axial force and bending moment are studied. Results show that frequency component of seismic wave will affect both the acceleration amplitude and distribution along the depth for site and station structure. For seismic wave rich in low-frequency components, its acceleration amplification effect is more significant. The influencing mechanisms of seismic waves with different spectral characteristics on different types of structural dynamic responses are different.