Collision Simulation Analysis of the Bridge under the Seismic Action
作者: 申爱国 ：西南交通大学土木工程学院，成都;
Abstract: In this paper, with a large span continuous girder bridge as the research object, the simulation analysis of seismic collision and the data microprocessing is carried out. based on this, a new the concept of the collision group was first discovered and put forward. Just because of the loading and unloading process in high-frequency and high-strength happened in a collision group (can also called impact drill effect), the collision damage is resulted. On this basis, we propose a beam end collision damage evaluation method and by applying the evaluation method on to the large span continuous girder bridge, the results of the assessment of the degree of collision damage is given. In this paper, by contrast seismic collision occurred in different models of bridge (with different pier, different base types) , the following suggestions should be pay attention: 1) To mitigate multi-span continuous girder bridge seismic collision, reducing side span girder falling probability, the setting and the design of a brake pier should be reasonable; 2) When set up the model of a bridge, how to simulating the base of pier should be cautious and reasonable; 3) When designing a long span continuous beam bridge with high pier in the high-intensity area, the impact drill effect should be considered.
文章引用: 申爱国 (2013) 大跨度连续梁桥的地震碰撞模拟分析。 交通技术， 2， 28-36. doi: 10.12677/OJTT.2013.21006
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