大型渡槽减隔震设计研究  

Seismic Isolation Design of Large-Scale Aqueduct-Bridge

作　　者：陈玲玲[1] 钱胜国[1] 陈敏中[1] 徐德毅[1] 

机构地区：[1]长江水利委员会长江科学院,武汉430010

出　　处：《南水北调与水利科技》2008年第1期212-215,237,共5页South-to-North Water Transfers and Water Science & Technology

基　　金：长江科学院院内科研基金项目"大型渡槽抗震研究--隔震技术;槽内动水作用机理研究"(院编号2002-6)

摘　　要：渡槽结构由于上部水体及槽体重量大,地震时动力反应强烈。按传统抗震设计难以保障其安全性,采用减隔震装置是解决渡槽抗震安全的可行措施,适度延长隔震结构周期与调整阻尼是控制渡槽振动的有效途径。由于无渡槽减隔震设计规范,借鉴桥梁减隔震设计原理,结合某渡槽进行了减隔震参数设计,给出了设计步骤。Since the weight of the aqueduct-bridge together with its inside water is huge, the dynamic response of the structure is intensive under seism,its safety could not be guaranteed according to the traditional aseismatic design. Therefore the seismic isolator is a feasible measure to ensure the safety of the aqueduct-bridge. Prolonging the period and adjusting the damp of the aqueduct-bridge are effective ways to control its vibration. As no design criterion about the aqueduct-bridge can be followed currently,the isolation principle of the bridge is used for reference and applied to the parameter design of an aqueduct-bridge,and the design process is given at the same time.

关 键 词：大型渡槽 减隔震技术 参数设计 

分 类 号：TV68[水利工程—水利水电工程] TU352[建筑科学—结构工程]