大跨径无背索斜拉桥的动力特性分析  

Dynamic Performence Analysis of Long Span Cable-Stayed Bridges without Back-Stays

作　　者：施新欣[1] 阮欣[1] 许慧峰[1] 

机构地区：[1]同济大学建筑设计研究院,上海200092

出　　处：《结构工程师》2006年第5期54-57,共4页Structural Engineers

摘　　要：本文结合一座跨径为223.1m的无背索斜拉桥方案,初步探讨了三座大跨径无背索斜拉桥的动力特性,并分析了斜拉索、主梁、桥塔的刚度变化及辅助措施对结构动力性能的影响,为以后同类桥梁的动力设计提供借鉴。Based on one project of long span cable-stayed bridge without back-stays, the dynamic performance of this kind of bridge is discussed briefly. Influences of design parameters, such as cable, girder, pylon and auxiliary measures, to dynamic performance are also analyzed, which can serve as a guide to design.

关 键 词：无背索斜拉桥 动力特性 参数分析 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]