某钻孔灌注桩旧桥加固改造技术分析  

The Research about Reinforced Technology of Cast-in-place Pile Bridge

作　　者：华学礼 文永生 张少华 

机构地区：[1]商丘市豫东公路勘察设计有限公司,河南商丘476000 [2]贵州省黔南州交通建设公司,贵州黔南州558000

出　　处：《交通科技与经济》2008年第5期13-15,共3页Technology & Economy in Areas of Communications

摘　　要：结合某灌注桩旧桥实际工程,在考虑经济因素的基础上,对该桥进行加固处理,拆除原上部结构,用增大截面法加固盖梁。通过对该旧桥进行盖梁承载力验算分析,以确保加固后的承载力满足当前荷载要求。研究结果表明:该桥加固前承载力已经不满足当前荷载要求,通过对该桥加固处理,加固后承载力验算,该桥完全满足现阶段荷载要求。而且加固后的盖梁也完全符合设计要求,从而达到了保留下部结构,节约资金的目的。The article combines practice project of certain cast-in-place pile bridge, reinforcing the bridge on the base of economy, removal of superstructure, and reinforcing the coping by enlarging cross-section. ThroUgh the research for load-carrying capacity of the old bridge, being sure the load-carrying capacity of reinforcing bridge meets the load requirement. The research indicates that load-carrying capacity of bridge meet the load requirement. Through checking calculation about reinforcing the bridge, the load-carrying capacity of reinforcing bridge meets the load requirement. The coping meets the design fully, and achieves the target of saving money.

关 键 词：灌注桩 增大截面法 承载力 加固 

分 类 号：TU753.8[建筑科学—建筑技术科学]