某中承式拱桥桥面系塌落事故分析  

Analysis of Collapse Accident of Bridge Deck System of Kongquehe Bridge in Xinjiang

作　　者：应立 伍晓孟 Ying Li;Wu Xiaomeng(China Railway Changjiang Transport Design Group Co.,Ltd.,Chongqing,China)

机构地区：[1]中铁长江交通设计集团有限公司,重庆

出　　处：《科学技术创新》2023年第25期124-127,共4页Scientific and Technological Innovation

摘　　要：吊杆是中承式拱桥的主要承重结构之一,其服役可靠性直接影响桥梁的安全性,工程中吊杆易出现锚固体系进水、失效以及钢丝腐蚀断裂等病害,致使部分拱桥桥面系梁体出现垮塌事故,严重威胁工程及人民生命财产的安全。本研究以某中承式拱桥部分桥面系塌落事故为例,分析了吊杆脆性破坏造成桥面系塌落的主要原因,并对该类型桥梁的设计、施工和运营的全过程管理提出了相应的应对措施,可为同类桥梁的建设实践提供参考和借鉴。Suspension rods are one of the main load-bearing structures of mid through arch bridges,and their service reliability directly affects the safety of the bridge.In engineering,suspension rods are prone to diseases such as water ingress,failure of the anchoring system,and corrosion and fracture of steel wires,resulting in collapse accidents of some arch bridge deck beams,seriously threatening the safety of engineering and people's lives and property.This article takes a partial deck collapse accident of a mid through arch bridge as an example to analyze the main reasons for the brittle failure of the suspension rod causing the collapse of the deck system.Corresponding measures are proposed for the entire process management of the design,construction,and operation of this type of bridge,which can provide reference and reference for the construction practice of similar bridges.

关 键 词：中承式拱桥 吊杆 病害 垮塌事故 全过程管理 

分 类 号：U447[建筑科学—桥梁与隧道工程] U448.22[交通运输工程—道路与铁道工程]