摘要With Wanzhou Yangtze River Bridge as an engineering example, FEM is applied to simulate the whole bridge construction process to optimize the truss member assembling sequences and determine the critical member bars that should be monitored. Real-time or fixed time data on stress and deflection are collected through a wireless integrated test system. Thus, the status of stress and deflection for the cantilever structure is under good control to ensure safety and stability. Measurements and theoretical computations of temperature effects are valuable for closure time selection and temperature deformation adjustment. The middle span is closed under the conditions of "zero error and zero additional stress". A successful construction of this bridge provides experience and guidance for other similar bridges.
Abstract：With Wanzhou Yangtze River Bridge as an engineering example, FEM is applied to simulate the whole bridge construction process to optimize the truss member assembling sequences and determine the critical member bars that should be monitored. Real-time or fixed time data on stress and deflection are collected through a wireless integrated test system. Thus, the status of stress and deflection for the cantilever structure is under good control to ensure safety and stability. Measurements and theoretical computations of temperature effects are valuable for closure time selection and temperature deformation adjustment. The middle span is closed under the conditions of "zero error and zero additional stress". A successful construction of this bridge provides experience and guidance for other similar bridges.
陈强, 张允, 向华伟, 王树国. 大跨度钢桁拱桥架设过程控制技术[J]. Journal of Highway and Transportation Research and Development, 2015, 9(1): 35-44.
CHEN Qiang, ZHANG Yun, XIANG Hua-wei, WANG Shu-guo. Construction Control Techniques of Long-span Steel Truss Arch Bridges. Journal of Highway and Transportation Research and Development, 2015, 9(1): 35-44.
[1] QIN Shun-quan. Design and Construction of Wanzhou Yangtze River Bridge of Yichang-Wanzhou Railway Line[J]. Journal of Railway Engineering Society, 2006, 4(2):20-23. (in Chinese)
[2] YI Lun-xiong. Conception and Design of Proposed Bridge Types for Long Span Railway Bridge[J]. Bridge Construction, 2005(2):33-36. (in Chinese)
[3] SHAO Chang-yu, ZHU Xu-chu, Xu Wei. Application of Long-span Hybrid System of Continuous Steel Truss Arch-girder to Wanzhou Yangtze River Railway Bridge[J]. Bridge Construction, 2003(3):53-56. (in Chinese)
[4] ZHAO Zhi-shang, LI Fang-jun. Design of Pier Top Arrangement for Erection of Steel Truss Arch and Girder of Wanzhou Yangtze River Bridge[J]. Bridge Construction, 2007(S2):14-17. (in Chinese)
[5] WANG Dong-hui. Design of Cable Pylon of Wanzhou Yangtze River Bridge[J]. Railway Standard Design, 2008(9):43-45. (in Chinese)
[6] LIU Cheng-liang. Analyses of Erection Technology for Steel Truss Arch of Wanzhou Yangtze River Bridge[J]. Journal of Railway Engineering Society, 2008(9):52-57. (in Chinese)
[7] LI Fang-jun PENG Yue-shen. Construction Technology for the Steel Truss Arch Tied Bar Beam Bridge of Wanzhou Yangtze River Bridge[J]. China Railway Science, 2007, 28(6):136-140. (in Chinese)
[8] LI Fang-jun, ZHAO Zhi-shang, ZHU Peng-fei. Closing Techniques for Steel Truss Arch and Girder of Wanzhou Yangtze River Bridge[J]. Bridge Construction, 2006(1):56-59. (in Chinese)
[9] WANG Zheng-bing, LI Hong-qi. Erection Schemes and Key Techniques for Steel Girder of Wanzhou Yangtze River Bridge[J]. Bridge Construction, 2003(S1):1-3. (in Chinese)
[10] PENG Xiao-ming, LEI Jun-qing. Space Mechanical Characteristics Analysis of Long-span Steel-trussed Arch Bridge at Construction Stage[J]. Journal of Beijing Jiaotong University, 2011, 35(1):73-77. (in Chinese)
[11] JIN Guo-sheng, TIAN Jun-wei, ZHENG Wan-shan. Analysis of Construction Stability of Large-span Steel Truss Arch Bridges under Static Wind Load[J]. Technology of Highway and Transport, 2010(3):86-88. (in Chinese)
[1]
常柱刚, 王林凯, 夏飞龙. 基于CV NewMark-b法桥梁风致振动FSI数值模拟[J]. Journal of Highway and Transportation Research and Development, 2019, 13(2): 28-37.
2015, Vol. 9 
