摘要
推导了单塔两跨式自锚式悬索桥的极限跨度的表达式,研究了极限跨度与主缆矢跨比、边跨与主跨跨度比、索塔高度与主跨跨度比、二期恒载和活载等影响因素的关系.结合目前悬索桥常用的材料,考虑主要因素的影响,对混凝土加劲梁和钢加劲梁自锚式悬索桥的极限跨度进行了研究,给出了相应的极限跨度.
The limit span of two-span self-anchored suspension bridge with single tower is deduced. Some factors,such as ratio of rise to span of main cable,ratio of side-span to main-span,ratio of height of tower to main-span, second dead load and live load, are analyzed in this paper. Based on the common used material and considering the main factors, the limit spans of self-anchored suspension bridges with concrete stiffening girder and with steel stiffening girder,are discussed in detail, and the corresponding limit spans are given.
出处
《武汉理工大学学报（交通科学与工程版）》
2005年第6期858-861,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
关键词
悬索桥
自锚式
极限跨度
suspension bridge
self-anchored
limit span
