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Performance-based seismic retrof itting of steel frames by the endurance time method

Mirzaee, A ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1193/081312EQS262M
  3. Publisher: Earthquake Engineering Research Institute , 2015
  4. Abstract:
  5. The endurance time method (ET) is a dynamic analysis procedure in which intensifying dynamic excitations are used as the loading function. Seismic performance is evaluated over the entire range of equivalent seismic intensities of interest in each response history analysis, considerably reducing computational demand. In this paper, a general methodology for performance-based retrof itting of typical steel frames by the ET method is discussed. A baseline steel momentresisting frame is considered, and its seismic performance is evaluated by the ET method, considering viscous dampers and shear wall panels as strengthening alternatives. Each retrof itting option includes several design alternatives as well. The versatility of the ET method for this category of seismic design problems is demonstrated. Seismic performance, in conjunction with life-cycle costs, is employed to select the most appropriate alternative
  6. Keywords:
  7. Life cycle ; Seismic waves ; Seismology ; Steel construction ; Structural frames ; Computational demands ; Design alternatives ; Endurance time methods ; General methodologies ; Intensifying dynamic excitations ; Response history analysis ; Seismic Performance ; Steel moment resisting frame ; Seismic design
  8. Source: Earthquake Spectra ; Volume 31, Issue 1 , February , 2015 , Pages 383-402 ; 87552930 (ISSN)
  9. URL: http://earthquakespectra.org/doi/abs/10.1193/081312EQS262M