渡槽结构非线性隔震研究  

Nonlinear Vibration Isolation Study of Aqueduct Structure

作　　者：徐建国[1] 陈淮[1] 王博[1] 

机构地区：[1]郑州大学环境与水利工程学院,郑州450001

出　　处：《长江科学院院报》2008年第2期61-64,68,共5页Journal of Changjiang River Scientific Research Institute

基　　金：河南省高校杰出科研人才创新工程资助项目(2003KYCX011);河南省科技攻关资助项目(0424470011);河南省自然科学基金资助项目(2004570002)

摘　　要：采用流固耦合渡槽薄壁结构梁段单元有限元模型,分别利用双线性模型和Wen模型来模拟铅芯橡胶支座的非线性滞回恢复力特性,对某大型渡槽结构进行了空间隔震响应研究。计算结果表明,无论是渡槽设计水位还是渡槽空槽情况,采用铅芯橡胶非线性隔震支座对渡槽输水建筑物均起到较好的减、隔震效果。建议在大型渡槽抗震设计时,可采用铅芯橡胶支座取代普通橡胶支座,以提高渡槽的整体抗震性能。On the basis of the thin-walt beam finite element model of an aqueduct with fluid-structure coupling, the seismic response of rome large aqueduct is studied by use of the bilinear model and the Wen model to simulate nonlinear hysteretic curve of the lead rubber bearing. The calculation results show that the lead rubber bearing has good vibration isolation effect in the cases of the aqueduct both with design water level and without water. In order to improve the anti-seismic performance of the aqueduct, the common rubber bearing can be replaced by the lead rubber bearing.

关 键 词：渡槽 隔震 非线性 铅芯橡胶支座 

分 类 号：TV312[水利工程—水工结构工程]