成达万高速铁路渠江特大桥主桥桥式方案研究  

Study on the Main Bridge Type of Qujiang Super Large Bridge on Chengdou-Dazhou-Wanzhou High-speed Railway

作　　者：尹春燕 彭岚平 张夫健 YIN Chunyan;PENG Lanping;ZHANG Fujian(China Railway Engineering Design and Consulting Group Co.,Ltd.,Beijing 100055,China)

机构地区：[1]中铁工程设计咨询集团有限公司,北京100055

出　　处：《铁道标准设计》2023年第2期72-76,共5页Railway Standard Design

基　　金：中国中铁股份有限公司科技研究开发计划课题(2020-重点-01);中铁工程设计咨询集团有限公司科研课题(研2020-14)。

摘　　要：成达万高速铁路渠江特大桥跨越渠江,为新建成都—南充—达州—万州高速铁路重点控制工程。结合线路、行洪、通航、环保等情况,提出(128+248+128) m连续刚构部分斜拉桥、(48+112+248+112+48) m钢管混凝土桁架组合梁斜拉桥、(128+248+128) m连续刚构拱桥3种主桥桥式方案,分别从桥梁的景观效果、经济性、施工难度、技术创新性、碳排放及后期养护维修等方面进行综合比较,(48+112+248+112+48) m钢管混凝土桁架组合梁斜拉桥具有景观好、经济性能优、碳排放少及具有技术创新等优点,选定其作为推荐桥式方案。该桥建成后,将为高速铁路桥梁智造提供一个方向,为同类桥梁设计提供借鉴。Qujiang super Large bridge on Chengdou-Dazhou-Wanzhou High-speed Railway crossing the Qujiang River is a key project of the whole line. Based on the route, flood discharge, navigation, environmental protection, put forward are the three main bridge type schemes:(128+248+128) m continuous rigid frame partial cable-stayed bridge,(48+112+248+112+48) m concrete-filled steel tube truss composite girder cable-stayed bridge,(128+248+128) m continuous rigid frame arch bridge. Comprehensive comparisons are made in terms of bridge landscape effect, economy, construction difficulty, technological innovation, carbon emission and maintenance. The(48+112+248+112+48) m concrete-filled steel tube truss composite girder cable-stayed bridge has the advantages of attractive landscape, excellent economic performance, low carbon emission and technological innovation, and it is selected as the recommended bridge type scheme. After the completion of the bridge, it can provide an option for the intelligent construction of high-speed railway bridges, and offer references for the design of similar bridges.

关 键 词：高速铁路 部分斜拉桥 钢管混凝土桁架组合梁斜拉桥 连续刚构拱桥 桥式方案 设计研究 

分 类 号：U238[交通运输工程—道路与铁道工程] U442.54[建筑科学—桥梁与隧道工程] U448.27