重庆市一号桥病害治理及加固  

The Treatment for Disease and Reinforcement of Chongqing No.1 Bridge

作　　者：王东[1] 

机构地区：[1]重庆交通学院,重庆400074

出　　处：《桥梁建设》2001年第5期56-59,共4页Bridge Construction

摘　　要：重庆市一号桥全长 81.2 1m ,是一座 5孔整体浇注的普通钢筋混凝土四梁式T形简支梁桥 ,由于修建年代久远、历史变迁等原因 ,未曾留下任何设计及竣工资料。介绍为该桥的承载力评定、病害治理和加固增强所采用的技术 ,即用柔性悬索检查工作台普查桥梁现状、在钢筋混凝土梁桥上截取受力主筋、用递推迭代法求取梁体实际影响线、在T梁梁肋下缘增设钢筋混凝土马蹄、以及采用玻璃钢封闭桥梁裂缝以防止混凝土碳化等多项桥梁检查。Chongqing No.1 Bridge which is casted monolithically is a reinforced concrete simple T girder bridge with 5 spans. In this paper, evaluation of bearing capacity, treatment for disease and reinforcement of the bridge are discussed. Some techniques are presented: flexible suspension cable is used to check working bench and observe the current status of the bridge; main bar under load of the reinforced concrete beam bridge is surveyed; recurrence iterative method is adopted to obtain the practical influence line; reinforced concrete horseshoe is placed at the bottom of T beam rib; and glass fiber reinforced plastic is utilized to seal bridge crack to prevent carbonization.

关 键 词：重庆一号桥 桥梁病害 治理措施 加固技术 简支梁桥 钢筋混凝土桥 

分 类 号：U445.7[建筑科学—桥梁与隧道工程]