摘要
位于湖南省永连公路上的天子山大桥是目前世界上第一座钢管混凝土桁式组合拱桥,其设计上的一个创新是用斜拉索代替了原来的刚性斜杆。制作了天子山大桥1∶20的铝合金模型,用模态分析的方法对钢管混凝土桁式组合拱桥的动力特性进行了研究,探讨了斜拉索对钢管混凝土桁式组合拱桥力学性能的影响。
The Tianzishan bridge in Yongzhou of Hunan province is the first concrete filled steel tube truss arch bridge in the world, whose design innovation is substituting diagonal cable for the rigid diagonal rod. Building an aluminum alloy model of the bridge scaled 1 ： 20, the dynamic characteristics of the steel pipe concrete combinatorial truss arch bridge are studied using experimental modal analysis and the influence of the cable force is also discussed.
出处
《中南公路工程》
2005年第3期89-91,共3页
Central South Highway Engineering
关键词
拱桥
斜拉索
模态分析
力学性能
arch bridge
diagonal cable
modal analysis
mechanical characteristics
