摘要
文章针对郭家沟双曲拱桥,对其病害状况和产生的原因进行了分析,并结合双曲拱桥受力特点,探讨了常规加固方案存在的不足,同时从改善主拱圈整体性出发,提出了一种新的加固措施——框架加固法,该法采用U型肋与横系梁形成的框架结构加固原桥拱肋,具有增加重量小、施工简便、受力明确等优点,可为同类工程参考。
Regarding Guojiagou two-way curved arch bridge,this article analyzed its disease condition and their cause,and combined with the stress characteristics of two-way curved arch bridge,it dis-cussed the deficiencies of conventional reinforcement schemes,while starting from improving the integ-rity of main arch ring,it proposed a new reinforcement measure-Frame Reinforcement Method,which uses the frame structure composed by U-shaped rib and transverse beam to reinforce the arch rib of original bridge,and it has the advantages of small increase in weight,simple construction,and clear force,thus it can be referred by similar projects.
出处
《西部交通科技》
2015年第2期18-21,共4页
Western China Communications Science & Technology
关键词
双曲拱桥
病害分析
框架
加固
Two-way curved arch bridge
Disease analysis
Frameworks
Reinforcement
