考虑纵坡的钢箱提篮拱桥拱脚精细化设计研究  

Research on Refined Design of Arch Foot Considering Longitudinal Slope of Steel Box X-Arch Bridge

作　　者：何磊 翟晓亮[1] HE Lei;ZHAI Xiao-liang(CCCC First Highway Consultants Co.Ltd.,Xi'an 710075,China)

机构地区：[1]中交第一公路勘察设计研究院有限公司,西安市710075

出　　处：《公路》2023年第2期103-107,共5页Highway

基　　金：陕西省自然科学基础研究计划项目,项目编号2021JM-606。

摘　　要：进行常规组合桥面板钢箱提篮系杆拱桥的拱脚设计时通常不考虑纵坡,而是通过调整现浇混凝土板厚度来满足桥面纵坡要求。但当拱脚处桥梁纵坡较大时,则无法通过调整拱脚处现浇混凝土板厚度来满足桥梁纵坡需求。文章以既有项目钢箱提篮系杆拱桥拱脚设计为例,采用BIM三维正向设计方法,研究了考虑纵坡情况下拱脚空间异形构件设计过程中存在的设计问题并提出了相应解决方案,以期为境内外类似工程设计提供借鉴。The longitudinal slope is usually not considered in the design of the arch foot of X-shaped tied arch bridge with conventional composite deck and steel box structure, in most cases, the thickness of the cast-in-place concrete slab is adjusted to meet the longitudinal slope requirements. However, when the longitudinal slope of the bridge at the arch foot is relatively large, the thickness of the cast-in-situ concrete slab at the arch foot cannot be adjusted to meet the requirements of the bridge longitudinal slope. In this paper, the design of the arch foot of an existing steel box X-shaped tied arch bridge is taken as example, through the BIM three-dimensional forward design method, the problems that appear in the design of the arch foot space special-shaped member considering the longitudinal slope are studied and the corresponding solutions are proposed, so as to provide reference for design of similar projects at home and abroad.

关 键 词：桥梁工程 提篮拱桥 拱脚设计 BIM正向设计 精细化设计 

分 类 号：U448.225[建筑科学—桥梁与隧道工程] U443.4[交通运输工程—道路与铁道工程]