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http://dx.doi.org/10.5000/EESK.2013.17.1.033

Performance Evaluation of Steel Moment Resisting Frames with Seismic Retrofit Using Fragility Contour Method  

Kim, Su Dong (Department of Architectural Engineering, Sejong University)
Lee, Kihak (Department of Architectural Engineering, Sejong University)
Jeong, Seong-Hoon (Department of Architectural Engineering, Inha University)
Kim, Do Hyun (Disaster Prevention Research Team, Daewoo E&C Co. Ltd.)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.17, no.1, 2013 , pp. 33-41 More about this Journal
Abstract
Due to a high level of system ductility, steel moment resisting frames have been widely used for lateral force resisting structural systems in high seismic zones. Earthquake field investigations after Northridge earthquake in 1994 and Kobe earthquake in 1995 have reported that many steel moment resisting frames designed before 1990's had suffered significant damages and structural collapse. In this research, seismic performance assessment of steel moment resisting frames designed in accordance with the previous seismic provisions before 1990's was performed. Buckling-restrained braces and shear walls are considered for seismic retrofit of the reference buildings. Increasing stiffness and strength of the buildings using buckling-restrained braces and shear walls are considered as options to rehabilitate the damaged buildings. Probabilistic seismic performance assessment using fragility analysis results is used for the criteria for determining an appropriate seismic retrofit strategy. The fragility contour method can be used to provide an intial guideline to structural engineers when various structural retrofit options for the damaged buildings are available.
Keywords
Steel Moment Resisting Frames; Seismic Retrofit; Probabilistic Performance Target; Buckling Restrained Bracing; shearwall; Fragility analysis;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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