摘要
考虑到桥梁大节段在桥位现场架设时,温度对组合梁的线形及组合梁纵向长度有影响。为了提前对温度影响效应进行判断,现取港珠澳大桥九洲航道桥钢混组合梁大节段进行温度效应计算分析;同时,开展温度-挠度变化的24 h连续监测工作。结果表明:组合梁在整体升、降温的状态下,竖向变形所受到的影响较小,主要影响轴向的梁长。
Considering the small section at the scene of the bridge site erection of a bridge,the temperature have influence on the linear finite element analysis and the longitudinal length of composite beams,in order to advance to determine the temperature effect,is now taking Jiuzhou channel bridge steel composite beam of large sections of the Hongkong,Zhuhai and Macao bridge section for temperature effect analysis.At the same time,temperature and deflection of continuous monitoring work 24 hours a day.The results show that the composite beams in the overall rise,cooling condition,the vertical deformation is small,the main influence of the axial beam is long.
出处
《科学技术与工程》
北大核心
2015年第9期216-220,共5页
Science Technology and Engineering
关键词
温度
计算分析
监测
竖向变形
temperature
calculation and analysis
monitoring
vertical deformation
