葛洲坝二江泄水闸抗震问题研究  

A Study on Anti-Seismic Problems of Release Sluice at the Gczhouba Second Channel

作　　者：吴杰芳 

出　　处：《长江科学院院报》1994年第3期50-57,共8页Journal of Changjiang River Scientific Research Institute

摘　　要：本文介绍葛洲坝二泄泄水闸初步设计阶段对原设计方案闸墩的横向抗震性能进行的研究，即通过抗震模型试验研究闸墩结构空库和满库条件下的动力特性及地震响应；采用有限元法计算闸墩地震时程响应。一期工程建成后，又对泄水闸闸墩进行原型强迫振动试验，测定闸墩的动力特性，并且根据测得的动力特性参数对原型闸墩又进行了抗震验算。结果表明泄水闸闸墩在七度地震作用下是安全的，原型闸墩比原设计方案的抗震性能有显著改善。This paper presents a experimental study in which dynamic properties and earthquakeresponse under the empty and full reservoirs are obtained through anti-seismic model test. Earthquaketime response of the piers is calculated by using finite element method. After completing the first stageof the project,a forced vibration experiment in prototype was performed to determine the dynamicproperty of the piers and based on the dynamic proper ties obtained ,checking computation ofearthquake resistance was carried out on the pies in prototype. Results show that the sluice piers aresafe under the action of seven magnitude earthquake.The piers in prototype have a remarkablesuperiority over those in original design scheme in the field of aseismic performance.

关 键 词：泄水闸 抗震性能 葛洲坝 模型试验 

分 类 号：TV66[水利工程—水利水电工程]