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Evaluation of inelastic performance of moment resisting steel frames designed by resizing algorithms  

Seo, Ji Hyun (연세대학교 건축공학과)
Kwon, Bong kwon (연세대학교 건축공학과)
Park, Hyo Seon (연세대학교 건축공학과)
Publication Information
Journal of Korean Society of Steel Construction / v.18, no.3, 2006 , pp. 361-371 More about this Journal
Abstract
In recent years, to overcome drawbacks related to the aplicati on of classical structural optimization algorithms, various drift design methods based on factores of member displacement participation factors have been developed to size members if they satisfy stiffness criteria. In particular, a resizing algorithm based on dynamic displacement participation factors from the response spectrum analysis has been applied in the drift design of steel structures subjec ted to seismic lateral forces. In this aproach, active members are selected for displacement control based on the displacement participation fa ve members may be taken out and added to the active members for the drift control. The resizing algorithm can be practically and effectively applied to drift design of high-rise buildings however, the inelastic behavior o f the resizing algorithm has not ben evaluated yet. To develop the resizing algorithm considering the performance of nonlinearity as well a s elastic stifness, the evaluation model of resizing algorithm s is developed and aplied to the examples of moment-resisting steel frame, which is one of the simplest structural systems. The inelastic behavior of moment-resisting steel frame designed by the resizing algorithm is also discussed.
Keywords
Drift design; Resizing algorithm; Structural optimization; Push-over; Non-linearity;
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