蝴蝶拱桥活载受力行为的试验研究  

Experimental Study on Behavior of a Butterfly-Shape Arch Bridge under Live Load

作　　者：黄海云[1] 张俊平[1] 刘爱荣[1] 禹奇才[1] 

机构地区：[1]广州大学土木工程学院,广东广州510006

出　　处：《中山大学学报（自然科学版）》2010年第1期53-56,61,共5页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金资助项目(50878059);广东省自然科学基金资助项目(7001897);建设部科技计划资助项目(2007-K3-10)

摘　　要：中山市长江大桥是世界上首座已建成的蝴蝶拱公路桥。为验证结构体系的可靠性与设计的合理性,基于静载试验实测数据及有限元分析结果,对该桥在试验荷载作用下的受力行为进行了分析和研究,研究结果表明:该桥传力流畅,变形态势合理,承载能力能满足设计荷载的要求;主要构件的几何尺寸、刚度匹配较好;闭合结构在活载作用下能够平衡部分恒载反应,基本实现推力自平衡。The Changjiang Bridge in Zhongshan city is the first butterfly-shape arch bridge used in highway in the world. To verify the reliability of this structure system and the rationality of design, a experimental study on mechanics behavior of this bridge under live load was carried out. Based on the measured data of static load test and the calculation results of finite element method, some problems concerned in the design of butterfly-shape bridge were solved.

关 键 词：蝴蝶拱桥 非对称拱肋 静载试验 有限元法 

分 类 号：TU317.1[建筑科学—结构工程]