文档介绍：2004 ANSYS 中国用户论文集
彭水水利枢纽升船机塔柱结构抗震动力分析
陈玲玲
长江科学院,430010
童迪
长江勘测规划设计院,430010
[ 摘要] 本文用ANSYS程序,对彭水水利枢纽第二级垂直升船机塔柱结构进行了三维有限元动力抗震计
算和静力计算,动力计算分别用反应谱法和逐步时间积分法计算地震响应;用动静叠加结果,
按承载能力极限状态设计式进行结构强度安全验算,为塔柱结构的抗震设计提供依据。
[关键词] 彭水利水枢纽升船机塔柱 ANSYS程序动力特性地震响应反应谱时程分析
Seismic Analysis of the Shiplift Tower Structure of
the Penshui Water Control Project
[ Abstract ] This paper gives the dynamic characteristics and the static and dynamic structural
response of the second vertical shiplift tower structure of the Penshui Water Control Project
under earthquake loads. According to the limit state design method of the load bearing
capacity, the paper shows the putation of the tower structure by using
response spectrum method bining the static and dynamic structural responses.
The analysis results in this paper can be used as a reference for the seismic design of the
shiplift tower structure.
[KeyWords] Penshui Water Control Project, Shiplift tower structure, ANSYS program, Dynamic
characteristics, Seismic response, Response spectrum.
1 前言
彭水水利枢纽位于重庆直辖市境内乌江流域彭水县,为乌江水利枢纽梯级之一。该枢纽
拦河大坝为重力坝。过坝通航建筑物采用渡槽与升船机提升相结合的方式。升船机塔柱结构
由三部分构成:底部为筏基,,
×,筒体顶部为顶板―箱梁―底板,顶、,;顶板上部机房
为轻型结构,,。。
这种重大工程的高耸钢筋混凝土建筑物,按规范规定,应进行抗震设计。升船机塔柱结构受
力及边界条件复杂,本文用ANSYS()程序,计算了塔柱动力特性,采用振型分解反应谱
法和T