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Beijing-Shanghai high-speed railway Dashengguan Bridge , the main bridge steel truss arch bridge type bridge is located in Nanjing, Jiangsu Province , the bridge site is located upstream of the Nanjing Yangtze River Bridge and the Third Nanjing Yangtze River Bridge , about from the Nanjing Yangtze River Bridge 1.5km , the bridge is an important part of the Beijing-Shanghai high-speed railway . Beijing - Shanghai high-speed railway the Dashengguan Bridge span deck is high off the horizontal plane , their large areas but also in the wind , the security implications of the strong crosswind weather , natural air vehicles operating on the high-speed rail , subway , limit is also a need to examine the contents of one of the bridge set up wind structure in order to reduce the vehicle suffered wind load , wind speed and improve train safety operations has great significance , but the structure type , wind structure , its the main bridge structure wind resistance , wind effects , such as vehicles need specialized research to determine . Therefore, for Dashengguan main bridge , bridges , vehicles and wind parameters of wind load parameters wind tunnel model test study , wind and structural measures , the effect of the strong winds of the iron line catenary impact study and wind - car - bridge coupled vibration analysis and research to ensure the bridge trains security and stability wind speed - speed curve , proposed wind structure measures , bridge train safe driving forecast wind speed and wind speed closed bridge operations management and security significance. Do the following : ① cross wind , the subway one-way traffic , the subway with adjacent lines ICE3, CRH2 train different time difference for two-way traffic of the bridge , the dynamic performance evaluation of the dynamic performance of the bridge and subway cars . ( 2 ) the role of the cross-wind , Metro single-lane ( windward side , leeward side ) , metro ( windward side ) , respectively, do not consider the windshield , windshield 2.0m empty penetration rate of 30% and a windscreen 2.5m through the empty rate of 30% of the bridges and the dynamic performance of the vehicle .
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