Abstract
Considering arch rib, lateral brace, suspender, girder, pier and track position, the model for the interaction between long-span tied arch continuous bridge and multiple tracks was established by using steel-concrete composite section beam element to simulate concrete-filled steel tube (CFST) arch rib, using the beam element with rigid arm to simulate the prestressed concrete girder and using nonlinear bar element to simulate longitudinal constraint between track and bridge. Taking a (77+3×156.8+77) m tied arch continuous bridge with four tracks on the Harbin-Qiqihar Passenger Dedicated Line as an example, the arrangement of continuously welded rail (CWR) was explored. The longitudinal force in CWR on the tied arch continuous bridge, the pier top horizontal force and torque due to the unbalance load case, were analyzed under the action of temperature, vertical live load, train braking and wind load. Studies show that, it can significantly reduce track displacement to set the track expansion devices at main span arch springing on both sides; the track stress due to arch temperature variation can reach 40.8 MPa; the track stress, pier top horizontal force and torque are related to the number of loaded tracks and train running direction, and the bending force applied to unloaded track is close to the loaded track, while the braking force applied to unloaded track is 1/4 to 1/2 of the loaded track; the longitudinal force of track due to the wind load is up to 12.4 MPa, which should be considered.
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OKELO R, OLABIMTAN A. Nonlinear rail-structure interaction analysis of an elevated skewed steel guideway [J]. Journal of Bridge Engineering, 2011, 16(3): 392–399.
DAI Gong-lian, LIU Wen-shuo. Applicability of small resistance fastener on long-span continuous bridges of high-speed railway [J]. Journal of Central South University, 2013, 20(5): 1426–1433.
XU Qing-yuan, ZHOU Xiao-lin, ZENG Zhi-ping, YANG Xiao-li. Mechanics model of additional longitudinal force transmission between bridges and continuously welded rails with small resistance fasteners [J]. Journal of Central South University of Technology, 2004, 11(3): 336–339.
HU Zhi-peng, XIE Kai-ze, ZHU Hao, WANG Ping. Effect on continuous welded rail caused by bridge pier settlement of large span bridge with high-rise piers [J]. Railway Standard Design, 2013 (10): 23–26.
DAI Gong-lian, YAN Bin. Longitudinal forces of continuously welded rail on high-speed railway cable-stayed bridge considering impact of adjacent bridges [J]. Journal of Central South University, 2012, 19(8): 2348–2353.
ZHU Bin. Design of continuous welded rail upon long span cable-stayed bridge with steel-concrete composite box beam [J]. Railway Standard Design, 2012 (2): 4–6 (in Chinese).
DAI Gong-lian, SU Miao, YAN Bin. Case study of twin cable-stayed bridges for high-speed railway in China: Design, analysis and construction [J]. Structural Engineering International, 2014, 24(3): 396–401.
HU Nan, DAI Gong-lian, YAN Bin, LIU Ke. Recent development of design and construction of medium and long span high-speed railway bridges in China [J]. Engineering Structures, 2014, 74: 233–241.
European Committee for Standardization. BS EN 1991-2: 2003. Eurocaode 1: Actions on structures-Part 2: Traffic loads on bridges [S]. 2003.
Union Interationale Des Chemins De Fer U. UIC 774-3 Track/bridge interaction. Recommendations for calculations [S]. Paris: International Union of Railways, 2001.
YAN Bin. Interaction between continuously welded rail and medium & small bridges of high-speed railway [D]. Changsha: Central South University, 2013 (in Chinese).
YAN Bin, DAI Jing-yao, CHEN Yue. Dynamic response of overpass cable-stayed bridge due to aerodynamic effect of high-speed train [J]. Journal of Vibroengineering, 2014, 16(8): 3777–3784.
TB 10015-2012. Code for design of railway continuously welded rail [S]. Beijing: China Railway Publishing House, 2013. (in Chinese)
TB 10621-2009. Code for design of high speed railway [S]. Beijing: China Railway Publishing House, 2010. (in Chinese)
TB10002. 1-2005. Fundamental code of design on railway bridge and culvert [S]. Beijing: China Railway Publishing House, 2005. (in Chinese)
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Foundation item: Project(51378503) supported by the National Natural Science Foundation of China; Project(2014M552158) supported by China Postdoctoral Science Foundation
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Yan, B., Dai, Gl., Guo, Wh. et al. Longitudinal force in continuously welded rail on long-span tied arch continuous bridge carrying multiple tracks. J. Cent. South Univ. 22, 2001–2006 (2015). https://doi.org/10.1007/s11771-015-2721-5
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DOI: https://doi.org/10.1007/s11771-015-2721-5