花山大桥钢混结合段施工质量研究  

Study on Construction Quality of Steel Concrete Joint Section of Huashan Bridge

作　　者：李昂 薛鹏龙 刘厚军[3] 李雁 雷宏军 朱阔 王俊[2] 万里[2] LI Ang;XUE Penglong;LIU Houjun;LI Yan;LEI Hongjun;ZHU Kuo;WANG Jun;WAN Li(Nanjing Urban Construction(Holding)Co.,Ltd.,Nanjing,Jiangsu 210037,China;College of Civil Engineering,Nanjing Tech University,Nanjing,Jiangsu 211816,China;China Railway Major Bridge Reconnaissance&Design Institute Co.,Ltd.,Wuhan,Hubei 430050,China)

机构地区：[1]南京市城市建设(控股)有限公司,江苏南京210037 [2]南京工业大学土木工程学院,江苏南京211816 [3]中铁大桥勘测设计院集团有限公司,湖北武汉430050

出　　处：《建筑施工》2022年第6期1351-1354,共4页Building Construction

基　　金：南京市建设行业科研计划项目(Ks2008)。

摘　　要：花山大桥的钢混结合段具有结构复杂、形状特殊等特点,要保证钢混结合段混凝土浇筑质量较为困难。提出了一种新的钢混段混凝土浇筑施工方法:通过由低向高浇筑混凝土,在混凝土无法抵达处用排气孔注浆,并合理设置排气孔作为混凝土液面观察的方法,使得混凝土中的空气得以充分排出。施工完成后,采用了三维超声波断层扫描技术对桥梁钢混结合段混凝土进行检测,对缺陷位置进行了及时补浆,保证了施工质量。The steel concrete joint section of Huashan bridge has the characteristics of complex structure and special shape.It is difficult to ensure the concrete pouring quality of the steel concrete joint section.A new construction method of concrete pouring in steel concrete section is proposed.By pouring concrete from low to high,grouting with exhaust holes where the concrete cannot reach,and reasonably setting exhaust holes as the method of observing the concrete liquid level,the air in the concrete can be fully discharged.After the completion of the construction,the 3D ultrasonic tomographic scanning technology is used to detect the concrete in the steel-concrete joint section of the bridge,and the concrete slurry is supplemented in time to ensure the construction quality.

关 键 词：桥梁施工 钢混结合段 工程检测 超声断层扫描 

分 类 号：TU997[建筑科学—市政工程]