Abstract：Research purposes： In order to ensure the concrete construction safety and quality of the long, high and heavy original section of the large span single T rigid frame four - track and double - width curved bridge of the Tianjiayaohao Bridge，the research was done on the key construction technologies for the original section of the bridge， including the support system, the external formwork system and the construction technology of C55 polypropylene fiber concrete.
Research conclusions ： (1) Because the hydraulic integration adjustable bracket was installed on the double thin - wall top，the problem of adjusting the bracket height was overcome，so the safety risk of the support construction was reduced and the construction safety and quality of long, high and heavy original section was guaranteed. (2) A concrete self--supporting bracket system was used in bridge contact network platform, so，the foundation construction of flange could be conducted simultaneously with construction of the catenary support. In this way, the engineering cost was reduced and construction time was shortened. (3) The C55 polypropylene fiber concrete was used to improve the crack resistance of the concrete. The layered pouring and reasonable process were adopted to ensure the construction quality of the concrete. (4) This research result is available for construction of the railway high - pier long-span continuous rigid frame bridge and single T rigid frame bridge.
易达，胡国伟. 大跨度单T刚构四线铁路桥0号段施工技术研究[J]. 铁道工程学报, 2013, 30(7): 47-52.
YI Da, HU Guo-wei. Research on Construction Technology for Original Section of Large Span Single T Rigid Frame Four - track Bridge. 铁道工程学报, 2013, 30(7): 47-52.
Wu Limin. Study on New Technology of Railway Bridge Cantilever Beam Section 0 Bottom Bracket Construction [J]. Building Technique Development,2010(3) ；33 -36.
[3]TB 10203-2002，铁路桥涵施工规范[S].
TB 10203-2002，Code for Construction on Bridge& Culvert of Railway[ S].
Song Yongan, Zhang Chongbin, Yu Yeqiang. High Pier and Long Span Prestressed Concrete Continuous Rigid Frame Bridge No. 0 Block Bracket Method [ J ].Highway,2005(8) ：52-56.
[5]卢志良，吕鹏,贾东荣.晋陕黄河特大桥2 x 108 m单T刚 构挂篮设计[J].铁道工程学报,2013(1):39 - 44.
Lu Zhillang,Lv Peng,Jia Dongrong. Design ^2 x 108 m Single T Rigid Frame Movable Suspended Scaffold for Shanxi - Shaanxi Yellow River Bridge [ J ]. Journal of Railway Engineering Society，2013(1) ：39 - 44.
Sun Jiansheng，Han Qingqing. Construction Technology on Simple Bracket Construction Technology of No. 0 Segment of Some Continuous Rigid Bridge [ J ].Construction Technology，2012(2) ：85 -87.
[7]马保林.髙墩大跨连续刚构桥[M].北京:人民交通出版 社,2001.
Ma Baoiin. Long - span Continuous Rigid Frame Bridge with High Pier [ M ]? Bering： China Communications Press,2001.
[8]裘伯永，盛兴旺，乔建东等.桥梁工程[M].北京：中国 铁道出版社，2000.
Qiu Boyong, Sheng Xingwang, Qiao Jiandong, etc. Bridge Engineering [ M ]. Bering： China Railway Publishing House，2000.
[9]项海帆.高等桥梁结构理论[M].北京：人民交通出版 社,2001.
Xiang Haifan. Advanced Theory of Bridge Structures [M]. Beging： China Communications Press, 2001.
2013, Vol. 30 
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