江西建材Issue(11)：319-320,339,3.
某在役预应力连续箱梁桥的病害分析及维修加固
Disease Analysis and Maintenance Reinforcement of a Prestressed Continuous Beam Bridge in Service
刘骁1
作者信息
- 1. 南平市城市桥梁服务中心,福建 南平 354299
- 折叠
摘要
Abstract
Using a pre-stressed continuous box girder bridge with five spans as a case,the causes of bridge diseases were analyzed based on the bridge disease investigation and static load tests.A maintenance and reinforcement scheme combining increasing the section and adding pre-stressed carbon fiber board system was proposed.The analysis of the tensile stress under live load of vehicles,structural deflection,and the bearing capacity at the center of each span before and after the disease treatment was conducted.The results show that the pre-stressed carbon fiber plate provides a compressive stress reserve for the structure that is greater than the tensile stress calculated under live load.The proposed method can significantly improve the stiffness and load-bearing capacity of the structure,achieving a good maintenance and reinforcement goal.关键词
预应力连续箱梁桥/病害分析/维修加固/预应力碳纤维板Key words
Pre-stressed continuous beam bridge/Disease analysis/Maintenance and reinforcement/Pre-stressed carbon fiber board分类
建筑与水利引用本文复制引用
刘骁..某在役预应力连续箱梁桥的病害分析及维修加固[J].江西建材,2024,(11):319-320,339,3.
