摘要
对悬索桥施工控制中存在的几个问题进行探讨,阐明成桥态平衡条件和基准索股架设态平衡条件的选取原则及其原因,分析猫道荷载和温度效应对主缆架设的影响,提出预偏量设置的双重目的,阐明顶推阶段和顶推量的确定原则和索鞍顶推的实质。
In this paper, the problems existing in the construction control of suspension bridges are discussed. The principles and reasons of selecting equilibrium conditions for the state of the completed bridge and the state of reference wire strands being erected are described, the influences of catwalk load and temperature effect on erecting of main cables are analyzed and the dual aims of setting the preoffsetting amount are brought forward. Finally, the principles of determining the stages and the amount of saddle pushing and the essence of the pushing are clarified.
出处
《桥梁建设》
EI
CSCD
北大核心
2003年第5期52-54,共3页
Bridge Construction
关键词
悬索桥
主缆
猫道
索鞍
温度
荷载
施工控制
分析
suspension bridge
main cable
catwalk
cable saddle
temperature
load
construction control
analysis
