水利水电技术2018，Vol.49Issue(3)：39-45,7.DOI:10.13928/j.cnki.wrahe.2018.03.006
基于能量法的水电站厂房抗震性能分析
Energy approach-based analysis on seismic performance of powerhouse of hydropower station
摘要
Abstract
In order to be convenient for the assessment made on the seismic performance of the powerhouse of hydropower station and the comparative selection of the relevant design schemes,an energy calculation formula which can calculate the total input energy that is input into the structure of powerhouse of hydropower station through ground surface under seismic action is educed.With this formula,the sensitivities of the influences from several factors such as self-vibration characteristics of the powerhouse,the insitu foundation condition,the seismic dynamic parameters,etc.on the total input energy into the powerhouse and its seismic performance are analyzed herein,and then the seismic performances of various design schemes are evaluated.The analysis on the calculation case shows that it is known that the energy approach is simple and effective for carrying out the comparative selection of aseismic schemes and the optimization of design through comparing the calculation results from both the energy formula and the response spectrum analysis.This method cannot only rapidly and simply calculate the total energy input into the powerhouse structure from earthquake,but also can simultaneously analyze the influences from several factors on the energy input into the powerhouse,thus the laws of the influences from structural self-vibration,in situ foundation condition and seismic dynamic parameters are generally applicable,and then can provide references for the aseismic designs of the powerhouse of hydropower station and the similar project concerned.关键词
水电站厂房/能量法/反应谱/抗震设计Key words
hydropower station/energy approach/response spectrum/aseismic design分类
建筑与水利引用本文复制引用
刘昱杰,宋志强,王建..基于能量法的水电站厂房抗震性能分析[J].水利水电技术,2018,49(3):39-45,7.基金项目
国家自然科学基金项目(51479165) （51479165）
