大跨度系杆拱桥的结构形式对动力特性及地震响应的影响探讨  

Study on the Influence of Structural Formation to the Dynamic Characteristic and Seismic Response of Tied-arch Bridges

作　　者：刘钊[1] 李鹏[2] 丁文胜[1] 

机构地区：[1]东南大学土木工程学院,江苏南京210096 [2]上海市政工程设计研究院,上海200092

出　　处：《现代交通技术》2005年第4期30-33,75,共5页Modern Transportation Technology

基　　金：江苏省自然科学基金项目(BK2002061)

摘　　要：我国目前建造的系杆拱桥以竖直拱面和垂直吊杆为主流形式,本文通过对比研究,系统探讨了系杆拱桥的拱肋及吊杆的结构形式变化对系杆拱桥动力特性及地震响应的影响,基于结构动力特性及抗震性能对其拱肋及吊杆形式的选择提出了合理建议,对于桥梁结构选型具有指导意义。At present, tied- arch bridge with vertical arch- planes and vertical hangers is a commonly used structural formation in China. By comparison, the influence of the structural formation （including both the vertical and inclined configurations） to the dynamic characteristic and seismic response of tied - arch bridges are systematically studied in this paper. Rational design proposals for the structural formation of tied- arch bridges are discussed based on their dynamic and seismic behaviors, which can serve as a design aid.

关 键 词：系杆拱桥 结构形式 动力特性 地震响应 

分 类 号：U442[建筑科学—桥梁与隧道工程]