杭州湾跨海大桥海中平台结构的动力响应分析  

Dynamic Response Analysis of Hangzhou Bay Sea-Crossing Bridge Offshore Platforms

作　　者：祁德庆[1] 李瑞[1] 王剑平[1] 

机构地区：[1]同济大学建筑工程系,上海200092

出　　处：《结构工程师》2007年第3期43-46,共4页Structural Engineers

摘　　要：根据已有的损伤理论研究成果,对杭州湾跨海大桥海中平台结构进行损伤诊断。通过有限元方法对结构损伤前后的动力特性进行分析,根据结构在损伤前后固有频率的变化,对结构是否损伤进行判定。以该海中平台实体为研究对象,用大型有限元软件对其损伤进行模拟分析。Damage determination of Hangzhou Bay Sea - Crossing Bridge offshore platforms is conducted through the present theoretic results. Analyzing the dynamical characteristic changes of the prototype structure and the damage structure by finite element method, it can be judged that the structure is damaged or not. The article achieves the numerical simulation analysis of the damaged structure taking the Hangzhou Bay Sea - Crossing Bridge as an example.

关 键 词：固有频率 动力分析 结构动力响应 损伤诊断 有限元方法 

分 类 号：U441.3[建筑科学—桥梁与隧道工程]