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Journal of Applied Sciences
  Year: 2008 | Volume: 8 | Issue: 3 | Page No.: 432-442
DOI: 10.3923/jas.2008.432.442
 
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The Effect of Analysis Methods on the Response of Steel-Braced Frame Buildings for Seismic Retrofitting

G. Ghodrati Amiri, H. Hamidi Jamnani and B. Mohebi

Abstract:
In this study, steel-braced frame buildings which are designed according to 2800 Standard of Iran (3rd revision), will be evaluated by four main types of structural analysis (Linear Static, Linear Dynamic, Nonlinear Static and Nonlinear Dynamic Analyses) with regard to Seismic Rehabilitation Code for Existing Buildings in Iran (based on FEMA 273). The discrepancy of the results derived from these four types of analysis and also seismic performance of the buildings in both linear and nonlinear treatments will be analyzed. At first, Probabilistic Seismic Hazard Analysis (PSHA) for 2 hazard levels has been carried out at center of Tehran, then three 3D models including 3 common buildings (5, 10 and 15-story) have been selected and designed subjected to earthquake according to 2800 Standard. Following this, these three 3D models have been analyzed and controlled based on Seismic Rehabilitation Code for Existing Buildings. The selected rehabilitation goal for this research is Fair (Controlling Life Safety in Hazard Level 1 + Collapse Prevention in Hazard Level 2). According to the results of this research, the accuracy of linear analysis for evaluating bracing elements is very low, in evaluating columns the results of linear static analysis is much more acceptable than linear dynamic and nonlinear static analysis. Also, by increasing the number of stories the accuracy of nonlinear static analysis decreases.
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How to cite this article:

G. Ghodrati Amiri, H. Hamidi Jamnani and B. Mohebi, 2008. The Effect of Analysis Methods on the Response of Steel-Braced Frame Buildings for Seismic Retrofitting. Journal of Applied Sciences, 8: 432-442.

DOI: 10.3923/jas.2008.432.442

URL: https://scialert.net/abstract/?doi=jas.2008.432.442

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