公路钢筋混凝土双曲拱桥病害分析及钢板粘贴加固施工方法应用  

Disease analysis of highway reinforced concrete double-curved arch bridges and application on steel plate pasting construction method

作　　者：刘莉萍[1] 杨宏平[1] 宋鹏 

机构地区：[1]陇东学院土木工程学院,甘肃庆阳745000 [2]甘肃省庆阳公路管理局,甘肃庆阳745000

出　　处：《中国建材科技》2015年第3期75-78,共4页China Building Materials Science & Technology

摘　　要：钢筋混凝土双曲拱桥广泛修建于上世纪70年代,目前桥梁病害严重,承载能力降低,对行车安全构成了严重的威胁。分析既有钢筋混凝土双曲拱桥的病害,并指出了病害产生的原因,根据双曲拱桥的结构特点和病害特征,研究了双曲拱桥的粘贴维修加固措施。并以一座实际桥梁为工程背景,将粘贴维修加固措施应用到实际当中。通过加固前后桥梁抗力的对比可知,所提出的维修加固措施对双曲拱桥是非常有效的。Reinforced concrete double-curved arch bridges were built aboard in 1970s.The damage of them becomes so severe at present.The loading capacity of them is reduced, which threatens driving safety greatly.In this paper, damages of bridge are summarized,and then damages causes are pointed out,reinforcement measures of bridge are studied basing on structure characteristic and damages features and applied to bridge structure basing on an existing bridge.After the comparison of the parameters of the resistance before and after the reinforcement,the reinforcement measure to the bridge is showed to be effective.

关 键 词：双曲拱桥 病害 加固 

分 类 号：U448[建筑科学—桥梁与隧道工程]