跨河铁路系杆拱桥梁施工技术研究  

Research on the Construction Technology of the Railway Bowstring Arch Bridge Across the River

作　　者：王俊 WANG Jun(China Railway 11th Bureau Group Third Corporation Limited,Shiyan 442000,China)

机构地区：[1]中铁十一局集团第三工程有限公司,湖北十堰442000

出　　处：《工程建设与设计》2024年第6期109-111,共3页Construction & Design for Engineering

摘　　要：跨河铁路系杆拱桥梁结构比较复杂,具有一定的施工难度,其施工质量直接关系到整个桥梁的受力状态,为此,论文进行跨河铁路系杆拱桥梁施工技术研究。施工方案为:采用混凝土浇筑技术开展桥墩施工,按照先边跨再中跨的顺序对连续梁合龙,利用螺旋千斤顶对体系转换,采用吊装方式将拱结构安装在梁上,以此完成跨河铁路系杆拱桥梁施工。实例分析结果表明,施工后跨河铁路系杆拱桥梁应力值小于设计强度,符合规范要求,设计技术具有良好的施工效果,在跨河铁路系杆拱桥梁施工方面具有良好的应用前景。The structure of railway bowstring arch bridge across the river is complicated and has certain difficulty in construction.Its construction quality is directly related to the stress state of the whole bridge.Therefore,the construction technology of railway bowstring arch bridge across the river is proposed.The construction scheme is as follows:using concrete pouring technology to carry out pier construction,closing continuous beams in the order of first side span and then middle span,using spiral jacks to convert the system,and installing arch structure on the beams by hoisting,so as to complete the construction ofthe cross-river railway tie pole arch bridge.The analysis ofthe example shows that the stress value ofthe bridge is less than the design strength and meets the requirements ofthe code.The design technology has good construction effect and good application prospect in the construction of the bridge.

关 键 词：铁路系杆拱桥梁 跨河 合龙 螺旋千斤顶 体系转换 

分 类 号：U445.4[建筑科学—桥梁与隧道工程] U448.225[交通运输工程—道路与铁道工程]