摘要
采用动力离散元法对一个实际工程的支座承载能力进行了分析，并分别考虑了静力和地震两种情况。结果表明，地震对桥墩的极限承载能力有直接的影响。在地震区进行桥墩设计时，必须评价桥墩在地震作用下的动力稳定性。
The stability of a bridge depends on the bearing capacity of footing abutment formed by back filled rocks. It is, thus, necessary to determine the bearing capacity of footing abutment . Dynamic distinct element method is adopted to estimate the bearing capacity of a practical footing abutment, considering static and seismic cases. The results indicate that seismic acceleration has a great influence on bearing capacity of footing abutment. It is suggested that dynamic stability of bridge footing be assessed when the bridge is built in seismic region.
出处
《成都理工学院学报》
CSCD
1998年第1期43-47,共5页
Journal of Chengdu University of Technology
基金
国家自然科学基金
关键词
回填岩石
支座
极限承载能力
动力离散元法
back filled rocks, footing abutment, limit bearing capacity, dynamic distinct element method
