池黄高速铁路大跨度多塔矮塔斜拉桥总体设计  

Overall Design of Multi-tower Extradosed Cable-stayed Bridge on Chizhou-Huangshan High Speed Railway

作　　者：陈怀智[1] 张欣欣[1] CHEN Huaizhi;ZHANG Xinxin(China Railway Shanghai Design Institute Group Co.Ltd.,Shanghai 200070,China)

机构地区：[1]中铁上海设计院集团有限公司,上海200070

出　　处：《铁道建筑》2022年第3期94-98,共5页Railway Engineering

基　　金：中国铁建股份有限公司科技研究开发计划(17-C45)。

摘　　要：池黄(池州—黄山)高速铁路太平湖特大桥位于深水库区。从技术、经济、工期、景观等方面对桥式方案进行比选,主桥采用(48+118+228+228+118+48)m矮塔斜拉桥,具有建造较经济、造型美观、整体刚度大等优点。针对库区深水及水位变动特点和基础覆盖层薄、长联结构次内力突出等问题,对桥梁总体设计、结构体系优化、施工方案等进行研究。静力计算、抗震检算、车桥动力响应分析结果表明,各项指标均满足规范要求,结构安全可靠,有效解决了深水大跨长联结构的设计问题。The bridge of Chizhou-Huangshan high speed railway across Taiping Lake is located in the deep water reservoir area. The bridge schemes were compared and studied from the aspects of technology,economy,construction period and landscape. The main bridge adopts(48 + 118 + 228 + 228 + 118 + 48)m extradosed cable-stayed bridge,which has the advantages of economic construction,beautiful appearance and large overall stiffness. According to the characteristics of deep water and water level variation in the reservoir area,thin foundation overburden and prominent secondary internal force of long continuous unit structure,the overall design,structural system optimization and construction scheme of the bridge were studied. The results of static calculation,seismic check calculation and vehicle bridge dynamic response analysis show that all indexes meet the requirements of the code,the structure is safe and reliable,and the design problem of deep water long-span and long continuous unit structure is effectively solved.

关 键 词：高速铁路桥梁 总体设计 多塔矮塔斜拉桥 深水库区 方案比选 结构体系 施工方案 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]