沪杭客运专线自锚上承式拱桥关键技术研究  

Key Technology Study on a Self-anchored Deck Arch Bridge on Shanghai-Hangzhou Passenger Dedicated Railway

作　　者：严爱国[1] 尹书军[1] 

机构地区：[1]中铁第四勘察设计院集团有限公司桥梁设计研究处,武汉430063

出　　处：《铁道标准设计》2011年第10期55-58,共4页Railway Standard Design

摘　　要：沪杭客运专线跨越沪杭高速公路、杭州市石大路时,在高速铁路桥梁上首次采用了(88+160+88)m自锚上承拱桥式,设计过程中对构造、施工顺序、桥面线形等关键技术进行研究,采用了拱梁固结结构体系,拱上连续梁按先简支后连续的施工方法,桥面预拱度综合考虑自重、活载、徐变发生前与完成后、合龙温度与环境温度等多种因素,确保了大桥快速、安全实施与高速列车平稳、舒适运行。A self-anchored deck arch bridge with spans of （88 ＋ 160 ＋ 88 ） m was firstly built on Shanghai-Hangzhou passenger dedicated railway, which was a super long bridge over-crossing Shanghai- Hangzhou expressway and Shida road in Hangzhou city. Based on the researches on structure, construction sequence and shapes of deck, rigid connection between girder and arch was adopted. Beams above the arch were built as simply supported first and then as continuous beams. The camber was calculated considering self weight, live load, creep time, temperature of closure and environment, which ensured the safety of construction and smooth and comfortable operation of high-speed trains.

关 键 词：铁路桥 上承式桥 拱桥 关键技术 研究 

分 类 号：U238[交通运输工程—道路与铁道工程] U442.5[建筑科学—桥梁与隧道工程]