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《Journal of Chongqing Jiaotong University(Natural Science)》 2010-03
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Research on Dynamic Behavior and Parameter Influence of Single Pylon Cable-Stayed and Continuous Rigid-Frame Composite Bridge

FENG Dong-ming1,LI Ai-qun1,LI Jian-hui1,YANG Guang2(1.School of Civil Engineering,Key Laboratory for Concrete & Prestressed Concrete Structures of Education Ministry,Southeast University,Nanjing 210096,Jiangsu,China; 2.The 4~(th) Survey & Design Institute of China Railways,Wuhan 430063,Hubei,China)  
The dynamic characteristics of the first single pylon cable-stayed and continuous rigid-frame hybrid girder bridge in China are analyzed on the basis of Midas/Civil 2006.The strategies of modeling 3D FEM model in simulating process are introduced.The self-vibration behavior of this unique bridge is analyzed by adopting the subspace iteration method,the first 10 order frequencies and corresponding vibration modes are also given.Meanwhile,different structural parameters,such as dead load intensity and elastic modulus,which have influence on dynamic characteristics,are calculated respectively.Furthermore,its rule is discussed and analyzed.The calculating results indicate that the cable-stayed continuous rigid-frame hybrid bridge possesses both features of the cable-stayed bridge and the continuous rigid-frame bridge;and the hybrid bridge is greatly influenced by dead load intensity and elastic modulus.The analysis results mentioned above provide reference for natural vibration analysis and earthquake-resistance design of this hybrid bridge.
【Fund】: 国家杰出青年基金项目(50725828);; 国家自然科学基金重点资助项目(50538020)
【CateGory Index】: U441.3
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【Citations】
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1 PENG Kai1,2,LI Jian-zhong1,ZHU Yu3,PENG Tian-bo1(1.Department of Bridge Engineering,Tongji University,Shanghai 200092,China;2.School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China;3.Anhui Communications Consulting & Design Institute,Anhui Hefei 230031,China);Shaking Table Tests on a Single-Column-Bent Double-Deck Viaduct-Ⅰ Pier Model:Structural Dynamic Properties[J];Journal of Chongqing Jiaotong University(Natural Science);2009-02
2 Li Jianhui1 Li Aiqun1 Luo Shidong2 Liu Zhengbiao2(1Key Laboratory for Concrete and Prestressed Concrete Structures of Ministry of Education,Southeast University,Nanjing 210096,China)(2The 4th Survey and Design Institute of China Railways,Wuhan 430063,China);3-Dimensional finite element analysis of Xijian River Bridge on Guangzhou-Zhuhai intercity rapid rail transit[J];Journal of Southeast University(Natural Science Edition);2009-01
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