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http://dx.doi.org/10.7781/kjoss.2017.29.5.361

Seismic Performance Evaluation of Special Moment Steel Frames with Torsional Irregularities - I Seismic Design  

Han, Sang Whan (Dept. of Architectural Engineering, Hanyang University)
Kim, Tae O (Dept. of Architectural Engineering, Hanyang University)
Ha, Seong Jin (Dept. of Architectural Engineering, Korea National University of Transportation)
Publication Information
Journal of Korean Society of Steel Construction / v.29, no.5, 2017 , pp. 361-368 More about this Journal
Abstract
ASCE 7-10 defines the torsional irregular structure as the one that has large torsional responses caused by the eccentricity. The code requires that these structures should be designed abide by the torsional provisions. This study evaluates the influence of torsional provisions on the performance of the designed multiple steel moment frames with different eccentricity. In this study, 3D response history analyses are performed. The results show that the moment frame design according to the standard with torsional irregularity provisions showed larger performance as the eccentricity increased and the distribution of plastic hinges similarly to orthopedic structures.
Keywords
Torsional irregularity; Nonlinear response history analysis; Story drift; Collapse performance; Steel moment frames;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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