Abstract: According to the condition of a bridge, a finite element was established to explore the potential failure mechanism of abutment sidewall cracking and sliping. Soil pressure was combined with live load and potential centrifugal force that might be generated due to small radius curve at the beg inning of the bridge, to simulate the most critical load condition. The results indicated ex cessive tension stress due to bending might had caused initial cracking and sliping in service.

Key words: abutment sidewall, crack, active earth pressure, curve, centrifugal force, finite element

摘要： 根据实桥状况,对桥台侧墙开裂的原因进行分析.考虑了弯道行车产生离心力作用,同时对墙后主动土压力 计算公式进行比选,通过土压力和离心力共同作用的计算模式,运用有限元进行计算,找出了侧墙开裂的原因.

关键词: 桥台侧墙, 开裂, 主动土压力, 弯道, 离心力, 有限元