摘要
悬索桥耐久性设计关系着整座桥梁的使用寿命。在正常运营阶段,越来越多的悬索桥构件逐渐暴露出耐久性问题,使部分悬索桥在没有达到设计使用年限时就已出现各种桥梁病害。以龙潭长江大桥耐久性设计为例,探讨悬索桥主缆、吊索、散索鞍、桥面伸缩装置及支座等构件耐久性设计发展趋势。
The durability design of suspension bridge is related to the service life of the whole bridge.In normal operation stage,more&more suspension bridge components gradually expose durability problems,so that some suspension bridges have appeared various bridge diseases before reaching their design service life.Taking the durability design of Longtan Yangtze River Bridge as an example,the development trend of durability design of suspension bridge components such as main cable,sling,splay saddle,bridge deck expansion device&support is discussed.
作者
楼朝伟
万田保
夏国星
王忠彬
LOU Chao-wei;WAN Tian-bao;XIA Guo-xing;WANG Zhong-bin(China Railway Bridge Survey&Design Institute Group Co.,Ltd.,Wuhan 430050,China;Jiangsu Communications Engineering Construction Bureau,Nanjing 210004,China)
出处
《中国市政工程》
2021年第6期14-17,21,124,125,共7页
China Municipal Engineering
关键词
悬索桥
耐久性设计
主缆除湿
底座式散索鞍
阻尼器
抗拉弯耐久型吊索
suspension bridge
durability design
main cable dehumidification
base-type loose cable saddle
damper
tensile bending durable sling