摘要
地震作用下渡槽动力响应研究是渡槽抗震设计的关键环节。基于ALE理论,选用显式动力分析软件LS-DYNA,研究了地震作用下水体晃动产生的动水压力对渡槽槽身位移和应力的影响。结果表明:槽体结构的横向位移及应力随渡槽槽内水深的增加而增大;在横向地震波的激励下,槽身上部横向位移大于下部;在水体的晃动效应下,槽身底部应力较大。
The dynamic response under seism is a key step for earthquake-resistance design of aqueduct.Based on the ALE theory,with the LS-DYNA explicit dynamic analysis software,the transverse displacement and stress caused by the water shaking under earthquake were studied.The results show that,the transverse displacement and stress increase with depth of water increasing,the upper transverse displacements are bigger than the under displacements of aqueduct by motivation of the transverse earthquake wave and the bottom stresses of aqueduct are major with the water shaking.
出处
《人民黄河》
北大核心
2012年第4期128-130,132,共4页
Yellow River
关键词
动力响应
渡槽
流固耦合
ALE理论
显式动力分析
dynamic response
aqueduct
fluid-solid interaction（FSI）
ALE theory
explicit dynamic analysis
