考虑碰撞效应的大型渡槽结构地震响应分析

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振动与冲击 ›› 2011, Vol. 30 ›› Issue (4) : 265-270.

论文

考虑碰撞效应的大型渡槽结构地震响应分析

王博1;黄亮1;徐建国1;孙丽萍1;侯玉洁2

作者信息 +

Analysis of seismic response including pounding effect for Large-Scale aqueduct

WANG Bo1;HUANG Liang1; XU Jian-guo1;SUN Liping1;HOU Yujie2

Author information +

文章历史 +

摘要

摘要：针对渡槽在地震作用下伸缩缝处的碰撞现象，建立考虑碰撞效应的渡槽动力分析模型，用非线性地震反应时程分析方法，研究了纵向地震作用下的碰撞效应对于渡槽地震响应的影响，分析比较了单边碰撞与双边碰撞对渡槽地震响应的影响差异，结果表明碰撞对渡槽结构的地震响应状态有所改变，渡槽槽身间的相对位移受碰撞的影响将减小，但碰撞产生的巨大撞击力对渡槽结构有较大危害，研究结果对大型渡槽结构的抗震设计具有一定的参考价值。

Abstract

Abstract: Based on the pounding phenomenon at expansion joints of large-scale aqueducts during earthquakes, an analytical model that considers the effects of collision was presented, with the time history analysis method of the determining the nonlinear seismic responses, the pounding effects of adjacent girders at expansion joints on seismic responses of large-scale aqueducts were studied, and the influences on two-sided and one-sided pounding on structural responses were investigated. The results showed that the pounding changed the responding status of the aqueduct to a certain extent, the relative displacements between the girders were decreased when pounding occurred, but the huge pounding force will be harmful to the safe operation of the aqueducts. The results from the present study may serve as a reference base for seismic design of large-scale aqueducts.

导出引用

王博;黄亮;徐建国;孙丽萍;侯玉洁. 考虑碰撞效应的大型渡槽结构地震响应分析[J]. 振动与冲击, 2011, 30(4): 265-270

WANG Bo;HUANG Liang;XU Jian-guo;SUN Liping;HOU Yujie. Analysis of seismic response including pounding effect for Large-Scale aqueduct[J]. Journal of Vibration and Shock, 2011, 30(4): 265-270