基于实测形变的组合梁温度影响分析  

Based on Analysis of the Measured Temperature Deformation of Composite Beams

作　　者：杨林[1] 陈颖川[1] 王玉琳[1] 田川[2] 

机构地区：[1]河海大学力学与材料学院,南京210098 [2]北京建筑大学土木与交通工程学院,北京100044

出　　处：《科学技术与工程》2015年第9期216-220,共5页Science Technology and Engineering

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.

关 键 词：温度 计算分析 监测 竖向变形 

分 类 号：TU323.3[建筑科学—结构工程]