大跨钢管混凝土拱桥实测与理论温差变形分析  

Analysis on Measured Deformation and Theoretic Deformation of Large Span CFST Arch Bridge Caused by Temperature

作　　者：郑志明 周建庭[2] 梁雄 刘庆阳 徐斌 代阳 胡志全 

机构地区：[1]重庆市公路局,重庆401147 [2]重庆交通大学,重庆400074 [3]佛山市公路勘察规划设计有限公司,广东佛山528000 [4]重庆高发司中渝营运分公司,重庆400067 [5]丰都县公路局,重庆400827

出　　处：《重庆交通大学学报（自然科学版）》2008年第B11期843-848,1008,共7页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：交通部西部交通建设科技项目(200731895041)

摘　　要：介绍了合阳嘉陵江大桥钢管混凝土拱桥变形观测方法,分析了该桥实测变形及理论温差计算变形之间差异及造成差异的原因,并指出运营多年大跨径钢管混凝土拱桥变形复杂的空间状态,其变形状态往往是不可准确预测。The method of observing the deformation of Heyang Jialing River concrete-filled steel tube arch bridge is introduced, The differences between theoretical and measured deformation of the bridge and the causes of differences are analyzed. Furthermore, it is pointed that the deformation of long-span concrete-filled steel tube arch bridge operating many years has complex space state ; and the state of deformation often can＇ t be accurately forecasted.

关 键 词：钢管混凝土 拱桥 变形 温度 有限元 

分 类 号：U441.5[建筑科学—桥梁与隧道工程]