Engineering characteristics of near-fault vertical ground motions and their effect on the seismic response of bridges

作者：Li Xinle^*; Don Huijuan; Zhu Xi

来源：Earthquake Engineering and Engineering Vibration, 2007, 6(4): 345-350.

DOI：10.1007/s11803-007-0723-5

• near-fault vertical ground motion
• peak value ratio
• spectrum ratio
• bridge
• seismic response

A wide variety of near-fault strong ground motion records were collected from various tectonic environments worldwide and were used to study the peak value ratio and response spectrum ratio of the vertical to horizontal component of ground motion, focusing on the effect of earthquake magnitude, site conditions, pulse duration, and statistical component. The results show that both the peak value ratio and response spectrum ratio are larger than the 2/3 value prescribed in existing seismic codes, and the relationship between the vertical and horizontal ground motions is comparatively intricate. In addition, the effect of the near-fault ground motions on bridge performance is analyzed, considering both the material nonlinear characteristics and the P-A effect.

• 出版日期2007-12
• 单位北京交通大学; 大连民族大学