困难条件下重型钢栈桥设计及施工技术研究  

Research on Design and Construction Technology of Heavy Steel Trestle under Difficult Conditions

作　　者：尹日娜 YIN Ri-na(China Railway 17th Bureau Group Fourth Engineering Co.,Ltd.,Chongqing 401121,China)

机构地区：[1]中铁十七局集团第四工程有限公司,重庆401121

出　　处：《价值工程》2025年第10期11-13,共3页Value Engineering

摘　　要：本文针对涪江特大桥41#、42#水中墩基础施工及两岸施工运输需求,研究了困难条件下重型钢栈桥的设计及施工技术。栈桥位于重庆市潼南区涪江上,总长360.6m,采用过水栈桥设计,上部结构为型钢结构,桥面宽度6m,基本跨度9m。设计方案解决了常规栈桥阻水面积大、易冲毁的问题,采用减小阻水面积和减少漂浮物堆积的型钢结构设计。施工技术包括钢管桩基础施工、承重梁安装、桥面系铺设等,并通过承载验算确保了栈桥的安全性和稳定性。This article focuses on the construction of the foundation of the 41#and 42#underwater piers of the Fujiang Grand Bridge and the transportation requirements for construction on both sides.It studies the design and construction technology of heavy-duty steel wharf under difficult conditions.The wharf is located on the Fujiang River in Tongnan District,Chongqing,with a total length of 360.6 meters.It is designed as a water crossing wharf,with an upper structure of steel structure,a bridge deck width of 6 meters,and a basic span of 9 meters.The design solution solves the problems of large water blocking area and easy erosion of conventional wharf,adopting a steel structure design that reduces the water blocking area and minimizes the accumulation of floating debris.The construction technology includes steel pipe pile foundation construction,load-bearing beam installation,bridge deck system laying,etc.,and ensures the safety and stability of the wharf through bearing verification.

关 键 词：涪江特大桥 重型钢栈桥 设计与施工 承载验算 洪水冲刷 型钢结构 

分 类 号：U448.18[建筑科学—桥梁与隧道工程]