Structural Engineering and Mechanics

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Response of self-centering braced frame to near-field pulse-like ground motions

  • Rahgozar, Navid (Department of Structural Engineering, Science and Research Branch, Islamic Azad University) ;
  • Moghadam, Abdolreza S. (Department of Civil Engineering, International Institute of Earthquake Engineering and Seismology (IIEES)) ;
  • Aziminejad, Armin (Department of Structural Engineering, Science and Research Branch, Islamic Azad University)
  • Received : 2015.08.07
  • Accepted : 2017.02.10
  • Published : 2017.05.25
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Abstract

A low damage self-centering braced frame equipped with post-tensioning strands is capable of directing damage to replaceable butterfly-shaped fuses. This paper investigates the seismic performance of rocking braced frame under near-field pulse-like ground motions compared to far-field records. A non-linear time history analysis is performed for twelve self-centering archetypes. A sensitivity analysis is carried out to examine the influences of ground motion types and modeling parameters. Findings represent the proper efficiency of the self-centering system under both far-field and near-field pulse-like ground motions.

Keywords

References

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