公路梁桥体外预应力加固设计与施工方法研究  

Discussion of design and construction method on extraneous prestressed strengthening technique for bridge

作　　者：艾军[1] 史丽远[2] 

机构地区：[1]南京航空航天大学土木应用技术研究所,南京210016 [2]苏州科技学院城建系,苏州215011

出　　处：《东南大学学报（自然科学版）》2002年第5期771-774,共4页Journal of Southeast University：Natural Science Edition

基　　金：苏州市科技发展资助项目 (SS990 4 )

摘　　要：提出了体外预应力加固体系的设计理论与构造要求 ,结合实际加固工程进行静载试验 ,比较加固前后桥梁在试验荷载作用下实际工作状态 ,测定结构的强度、刚度及抗裂性能 ,从而确认其加固效果 .总结出体外索加固桥的具体施工步骤以及关键技术 。According to extraneous prestressed strengthening practical bridge project a quiescent load test was conducted and the working behavior of the bridge under test load was analyzed. The strength, stiffness and resistance to crack were tested, and the effect of extraneous prestressed strengthening technique on bridge was properly assessed. This paper provides design theory and construction demands and sums up corresponding construction method and technological keys, which can be applied in engineering design.

关 键 词：公路桥梁 体外预应力加固 设计 施工 

分 类 号：U448.14[建筑科学—桥梁与隧道工程]