大岗山拱坝考虑阻尼器抗震措施的非线性动力反应分析  

Nonlinear dynamic analysis of Dagangshan arch dam with considering damper reinforcement

作　　者：罗秉艳[1] 徐艳杰[1] 王光纶[1] 

机构地区：[1]清华大学水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《水力发电学报》2007年第1期67-70,共4页Journal of Hydroelectric Engineering

基　　金：国家自然科学基金(50209004);国家自然科学基金重点项目(90510018)

摘　　要：本文在已有的拱坝非线性动力分析程序ADAP-88中加入阻尼器模型,开发完成了可考虑阻尼器抗震加固措施的数值分析程序,并将该程序应用于大岗山拱坝的非线性动力反应分析中。研究表明,阻尼器抗震措施对控制高拱坝在强震作用下的横缝张开度有一定的效果,但对坝体应力的分布规律和量值影响不大。A numerical model is developed based on the arch dam nonlinear dynamic analysis program ADAP - 88 to simulate the strengthening performance of damper measurers installed in arch dams. With this program, analyses have been carried out on nonlinear dynamic responses of Dagangshan arch dam. The results illustrate that damper reinforcing measurers can only be functional to reduce contraction joint opening of the arch dam during strong earthquake, but it appears to have insufficient effect on the distribution of dam stresses.

关 键 词：水工结构 阻尼器抗震 非线性动力分析 拱坝 伸缩横缝 

分 类 号：TV31[水利工程—水工结构工程]