JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2016, Vol. 46 ›› Issue (5): 110-115.doi: 10.6040/j.issn.1672-3961.0.2015.382

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Study on the circulating Pushover on ductile ability of pillar piers caused by axial compression ratio

ZHU Jun, ZHAO Jianfeng*, CHEN Zhijian   

  1. School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, Shandong, China
  • Received:2015-11-20 Online:2016-10-20 Published:2015-11-20

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Abstract: Nonlinear FE models of cylindrical bridge piers were established using ABAQUS. Failure process of cylindrical bridge piers including protective layer, core area concrete, stirrups and longitudinal reinforcement were simulated using Pushover analysis with cycle loading. The effects of axial compression ratio on ductility failure of cylindrical bridge piers were studied. Numerical results showed that the failure time of core area concrete was shortened with increasing of axial compression ratio. While first yield time of protective layer and core area concrete, stirrups and longitudinal reinforcement had no significant impact rules to follow. Within certain range, displacement ductility coefficient decreased with increasing of axial compression ratio, which showed that proper axial compression ratio would improve ductility seismic ability of bridge piers. Results also showed that cylindrical piers hysteretic energy capacity increased with the axial compression ratio decreases.

Key words: Pushover analysis with cycle loading, ductile, cylindrical piers, axial compression ratio, yield load

CLC Number: 

  • U441
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