摘要
提出下拉索多塔斜拉桥结构体系,并以某长江大桥为工程背景,对比分析下拉索多塔斜拉桥与常规双塔和多塔斜拉桥的力学性能。分析表明,下拉索多塔斜拉桥结构体系可以有效提高结构刚度,减少墩塔的弯距。
This paper proposes a structural system of multi-pylon cable-stayed bridge with tie-down cables. Against the background of a bridge over the Changjiang River, the paper com- paratively analyzes the mechanical behavior of such type of the bridge, a normal double-pylon ca- ble-stayed bridge and a multi-pylon cable-stayed bridge. The results of the analysis show that the structural system of the cable-stayed bridge with tie-down cables can effectively improve the structural rigidity and reduce the bending moment of piers and pylons.
出处
《世界桥梁》
北大核心
2009年第3期29-32,共4页
World Bridges
关键词
斜拉桥
下拉索
力学性能
分析研究
cable-stayed bridge
tie-down cable
mechanical behavior
analytical study
