摘要
一座预应力混凝土连续箱梁桥在受损后,梁体上产生了大量裂缝,同时经荷载试验检测,主梁刚度明显降低,结构承载能力不能满足原设计要求。本文介绍了该桥的加固设计与施工监测情况,通过维修加固,桥梁恢复了原设计的承载能力,经过一段时期的运营,桥梁无新的病害发生。
A prestressed concrete continuous box girder bridge is damaged, whose girder has many cracks. According to loading experiment, the stiffness of girder is lower, and the bearing capacity is not satisfied. Authors introduce the strengthening design and construction monitoring of this bridge. After strengthening, the bridge has no disease.
出处
《施工技术》
CAS
北大核心
2007年第3期82-83,101,共3页
Construction Technology
关键词
预应力混凝土
连续箱梁桥
体外预应力
维修加固
施工监测
prestressed concrete
continuous box girder bridge
external prestressing
strengthening
construction monitoring
