友联红河特大桥设计方案研究  

Research on the Design Scheme of Youlian Honghe Major Bridge

作　　者：林永楷[1] 田磊 魏松涛[1] LIN Yong-kai;TIAN Lei;WEI Song-tao(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》2025年第1期216-223,共8页Highway

摘　　要：友联红河特大桥为宁夏黄土地区上的一座公路桥梁,桥梁全长为2161 m,其中主桥长为1152 m,为两联主跨分别为118 m、140 m的连续刚构桥,最大联长为720 m,最大墩高达102 m。通过对该桥主桥桥型、跨径的比选分析,确定施工图最终设计方案。桥型方面,对预应力混凝土连续刚构、钢腹板预应力混凝土连续刚构及矮塔斜拉桥进行比选分析;跨径组合方面,结合桥梁布跨限制因素,对尽可能对存在的跨径组合方式进行了比选,以此确保本桥在桥型方案与跨径组合上为最佳方案。此类大跨、长联、高墩桥梁在我国西北黄土地区较为多见,相关研究成果可为同类工程提供参考。The Youlian Honghe Major Bridge is a highway bridge in the loess area of Ningxia,with a total length of 2161 m.The main bridge is 1152 m long,which is a continuous rigid frame bridge with two main spans of 118 m and 140 m,respectively.The maximum modular length is 720 m,and the maximum pier height is 102 m.In the paper,the final design scheme of the construction drawing is determined by comparing and analyzing the main bridge type and span of the bridge.In view of the bridge type,a comparative analysis is conducted on the prestressed concrete continuous rigid frame,steel web prestressed concrete continuous rigid frame,and low tower cable-stayed bridge.When selecting span combinations,the existing span combination methods are compared as much as possible based on the limiting factors of the bridge beam layout,in order to ensure that the bridge type scheme and span combination are the best.This type of large-span,long modular length,and high pier bridge is more common in the loess area of northwest China,thus the relevant research results can provide reference for similar projects.

关 键 词：桥梁工程 黄土地区桥梁 连续刚构桥 波形钢腹板 矮塔斜拉桥 桥型方案比选 跨径组合布置 

分 类 号：U442.54[建筑科学—桥梁与隧道工程]