体外预应力加固连续梁桥的合理配束线形讨论  

Research on Rational Tendon Configuration of Continuous Beam Bridge Sterngthened by External Prestressing

作　　者：孟杰[1] 刘钊[1] 

机构地区：[1]东南大学土木工程学院,江苏南京210096

出　　处：《现代交通技术》2008年第6期28-31,共4页Modern Transportation Technology

基　　金：江苏省交通科学研究项目(项目编号:06Y41)

摘　　要：体外预应力技术是一种主动对结构加固的技术,针对连续梁桥中典型的多折线配束线形,将其位置参数化,以连续梁关键截面最大弯矩为目标,对体外束配束位置参数展开讨论,并结合一座实桥加固中的配束线形分析,说明了该方法的应用效果。External pretressing is a kind of active reinforcement technology. According to the typically broken line configuration of external tendon in continuous-beam bridge, dimensionless parameters are used to generalize the deviators＇ positions. Taking the maximum bending moment of key cross-sections as object, the position parameters of external tendon are studied. The efficiency of the proposed method is verified by tendon configuration analyses in a continuous-beam bridge.

关 键 词：连续梁桥 体外预应力加固 配束线形 设计 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]