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Alignment control for a long span urban rail-transit cable-stayed bridge considering dynamic train loads

Science China(Technological Sciences) 2016年第11期59卷 1759-1770页

作者： CHEN ZengShun ZHOU JianTing TSE Kim Tim HU Gang LI Yong WANG Xu State Key Laboratory Breeding Base of Mountain Bridge and Tunnel Engineering and Engineering Research Center of Bridge Structure and Material in the Mountainous Area Chongqing Jiaotong University Department of Civil and Environmental Engineering Hong Kong University of Science and Technology Shenzhen Bridge Design & Research Institute Co. Ltd.

In this paper, bridge alignment control with considering dynamic train loads was experimentally and theoretically *** process of bridge dynamics and the self-adaptive kalman filter bridge alignment control method with considering the dynamic train loads were briefly introduced. The static measurement, the dynamic test, the field alignment measurement as well as the finite element analysis(FEA) of the second longest rail transit cable-stayed bridge in the world were carried *** on the results, the train dynamic load effect on the bridge alignment was obtained quantitatively. Subsequently, alignment control of the rail transit bridge with considering this effect using a self-adaptive kalman filter method was analyzed. The results show that:(a) the dynamic train loads have effects on alignment control of the bridge and therefore cannot be neglected;(b) the self-adaptive kalman filter method is applicable and reliable for alignment control of bridges during construction. The analytical method and whole process contribute to develop a related specification and further engineering applications.

关键词： dynamic train loads alignment control self-adaptive kalman filter rail transit cable-stayed bridge

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