实用体外预应力结构预应力损失估算方法  

Practical Estimation Method for Prestress Loss of Externally Prestressed Structures

作　　者：胡志坚[1] 胡钊芳[2] 

机构地区：[1]同济大学桥梁工程系 [2]华东交通大学,江西南昌330013

出　　处：《桥梁建设》2006年第1期73-75,82,共4页Bridge Construction

基　　金：江西省交通科研项目(200412)

摘　　要：在现有研究和相关规定的基础上,通过分项研究,考虑了包括摩阻损失、锚具变形损失、混凝土弹性压缩损失、时效损失等各项应力损失计算理论,并通过井冈山大桥的具体加固工程实例,验证了相关计算理论的正确性和精度。Based on the current research findings of external prestressing techniques and the codes and specifications related to, the correctness and precision of some of the calculation theories in connection with prestress loss in the techniques are verified through respective study of various losses due to friction resistance, anchor deformation, concrete elastic compression, time-dependent variations, and also through a specific example of a bridge strengthening project, the Jinggangshan Bridge.

关 键 词：体外预应力结构 应力损失 桥粱加固 计算方法 

分 类 号：TU378[建筑科学—结构工程]