摘要
建立了观音岩电站拦污栅结构模型,基于三维动力有限元法对其进行抗震分析,计算得到结构的5阶自振特性,根据文献[1]规定的振型分解反应谱法以及动静结合的方法对结构进行动力分析,对结构的抗震安全性能作出评价,并指出了抗震薄弱部位。
A model of trashrack is established for Guanyinyan Hydropower Station and the strength computation is based on the 3D dynamic FEM for the construction. The calculated characteristics of 5 - step free vibration of the trashrack are applied to the dynamic analysis of it by way of model decomposing response spectrum stated in seismic design specification for hydropower structures and the static and dynamic associated method, based on which the strength of the trashrack is evaluated and the weak part is detected.
出处
《水利科技与经济》
2007年第2期81-83,共3页
Water Conservancy Science and Technology and Economy
关键词
拦污栅
自振特性
抗震分析
观音岩电站
trashrack
free vibration
seismic analysis
Guanyinyan Hydropower Station
