大型渡槽隔震体系结构动力特性的试验研究

英文篇名：Test Research on Dynamic Characteristics of Vibration Isolation System for Large-scale Aqueduct
中文刊名：南水北调与水利科技
英文刊名：South-to-North Water Transfers and Water Science & Technology
作者：夏富洲 ; 宋一乐 ; 李静 ; 姚雄
英文作者：XIA Fu-zhou1 ; SONG Yi-le2 ; LI Jing3 ; YAO Xiong3(1.State Key Laboratory of Water Resources and Hydropower Engineering Science ; Wuhan University ; Wuhan 430072 ; China ; 2.School of Civil and Architectural Engineering ; Wuhan University ; Wuhan 430072 ; China ; 3.Construction and Administration Bureau of South-to-North Water Diversion Middle Route Project ; Beijing 100038 ; China)
中文关键词：大型渡槽 ; 减震支座 ; 自振周期
英文关键词：large-scale aqueduct ; vibration absorption bearing ; natural period of vibration
出版日期：2009-12-15
机构：武汉大学水资源与水电工程科学国家重点实验室;武汉大学土木建筑工程学院;南水北调中线干线工程建设管理局;
年：2009
期：06
出版单位：南水北调与水利科技

摘要

为解决南水北调大型渡槽工程中的抗震问题,进行了模拟地震振动台试验研究,分析了减震支座水平刚度、槽内水体及场地对渡槽结构动力特性的影响。研究结果表明,减震支座的水平刚度越小、槽内水体质量越大,渡槽结构自振周期越长,从而达到减震效果,提高渡槽的抗震能力。此外,场地对减震效果影响显著。
In order to resolve the vibration problems of large-scale aqueduct in South-to-North Water Transfer Project,shaking table model tests of simulating earthquake action have been done,and the effects of horizon rigidity of vibration absorption bearing;waters in the flumes and field on aqueduct dynamic characteristics have been analyzed.The results indicate that the smaller horizon rigidity of vibration absorption bearing is;the bigger mass of waters in the flumes is,the longer natural period of vibration of aqueduct is.And so the effect of vibration absorption is got,and the vibration-resistant performance of aqueduct can be improved.In addition,the field has remarkable influence on the effect of vibration absorption.

引文

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