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Fragility analysis of concrete-filled steel tube arch bridge subjected to near-fault ground motion considering the wave passage effect

  • Liu, Zhen (School of Civil Engineering, Dalian University of Technology) ;
  • Zhang, Zhe (School of Civil Engineering, Dalian University of Technology)
  • Received : 2016.06.19
  • Accepted : 2016.12.28
  • Published : 2017.04.25

Abstract

This paper focuses on the impact of the wave passage effect on the long-span bridge. In order to make the wave passage effect more obvious, ground motion samples are selected from the near-fault ground motion of the 1999 Chi-Chi earthquake and an arch bridge with a 280m main span is selected as a bridge sample. The motion ground samples are divided into two groups according to the characteristics of near-fault. A sequence of fragility curves is developed. It is shown that the seismic damage is increased by the wave passage effect and the increase is more obvious in the near-fault ground motion.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China

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