高速铁路超长大桥梁设计研究
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摘要
超长大桥梁在高速铁路上具有广泛设计代表性。由于桥上跨线工点多、线路平面关系复杂,桥上有道岔咽喉区、高架站,结构设计复杂,因此特殊桥梁结构在超长大桥梁上的应用空间和创新设计方面潜力巨大。以京沪高速铁路天津特大桥为背景,简要介绍该桥的建设环境、技术标准、地质资料和墩台形式。归纳大跨度连续梁、道岔区桥梁、站台梁等代表性工点的设计要点,重点介绍该桥的特殊结构,总结京沪高铁桥梁设计经验,为今后中国高速铁路建设优化创新提供借鉴。
The design of super major bridges is of great representativeness applied to high-speed railway.Due to the multiple cross-line work-point,the complex plane and elevation relation of the line,the switch throat area and viaduct station on the bridge,and the complicated structural design,there remain huge potentials in perspective of special bridge structures and design innovations on super major bridges. This paper takes Tianjin super major bridge of Beijing-Shanghai high-speed railway as an example to briefly introduce the construction environment,main technical standards,geological conditions and the types of bridge piers and abutments of the bridge. Meanwhile,it also addresses the design features such as longspan continuous beams,turnout zone bridges, station platform beams, and focuses on the special structures of this bridge,and summarizes the experiences in the design of bridges on Beijing-Shanghai high-speed railway,which could provide references for future optimization and innovation of high-speed railway construction in China.
The design of super major bridges is of great representativeness applied to high-speed railway.Due to the multiple cross-line work-point,the complex plane and elevation relation of the line,the switch throat area and viaduct station on the bridge,and the complicated structural design,there remain huge potentials in perspective of special bridge structures and design innovations on super major bridges. This paper takes Tianjin super major bridge of Beijing-Shanghai high-speed railway as an example to briefly introduce the construction environment,main technical standards,geological conditions and the types of bridge piers and abutments of the bridge. Meanwhile,it also addresses the design features such as longspan continuous beams,turnout zone bridges, station platform beams, and focuses on the special structures of this bridge,and summarizes the experiences in the design of bridges on Beijing-Shanghai high-speed railway,which could provide references for future optimization and innovation of high-speed railway construction in China.
引文
[1]京沪高速铁路股份有限公司.漫画京沪高速铁路[M].北京:中国铁道出版社,2011.
[2]铁道第三勘察设计院集团有限公司.京沪高速铁路桥涵设计图纸[Z].天津:铁道第三勘察设计院集团有限公司,2008.
[3]孙树礼.京沪高速铁路桥梁工程[J].铁道标准设计,2008(6):1-4.
[4]许三平.京沪高速铁路徐沪段桥梁设计[J].铁道标准设计,2010(7):41-45.
[5]金莉.京沪高速铁路(京徐段)桥梁设计[J].铁道标准设计,2011(7):29-34.
[6]铁道第三勘察设计院集团有限公司.时速300~350 km客运专线铁路桥梁设计手册[Z].天津:铁道第三勘察设计院集团有限公司,2008.
[7]王玉泽.京沪高速铁路徐沪段桥上板式无砟无缝道岔设计研究[J].铁道建筑,2014(5):120-123.
[8]文望青,罗世东.京沪高速铁路桥梁设计关键技术[J].铁道建筑技术,2009(2):30-49.
[9]刘敬棉.分段施工的预应力混凝土连续梁钢束布置方式及预张力研究[J].铁道工程学报,2008(12):61-64.
[10]王霞,吴大宏.京沪高速铁路天津南站站台梁设计[J].铁道标准设计,2012(10):108-111.
[11]卢春房.京沪高速铁路建设管理创新与实践[J].铁道工程学报,2014(9):1-7.
[2]铁道第三勘察设计院集团有限公司.京沪高速铁路桥涵设计图纸[Z].天津:铁道第三勘察设计院集团有限公司,2008.
[3]孙树礼.京沪高速铁路桥梁工程[J].铁道标准设计,2008(6):1-4.
[4]许三平.京沪高速铁路徐沪段桥梁设计[J].铁道标准设计,2010(7):41-45.
[5]金莉.京沪高速铁路(京徐段)桥梁设计[J].铁道标准设计,2011(7):29-34.
[6]铁道第三勘察设计院集团有限公司.时速300~350 km客运专线铁路桥梁设计手册[Z].天津:铁道第三勘察设计院集团有限公司,2008.
[7]王玉泽.京沪高速铁路徐沪段桥上板式无砟无缝道岔设计研究[J].铁道建筑,2014(5):120-123.
[8]文望青,罗世东.京沪高速铁路桥梁设计关键技术[J].铁道建筑技术,2009(2):30-49.
[9]刘敬棉.分段施工的预应力混凝土连续梁钢束布置方式及预张力研究[J].铁道工程学报,2008(12):61-64.
[10]王霞,吴大宏.京沪高速铁路天津南站站台梁设计[J].铁道标准设计,2012(10):108-111.
[11]卢春房.京沪高速铁路建设管理创新与实践[J].铁道工程学报,2014(9):1-7.