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- 저자 : M. Reza Banihashemi (검색결과 1 건)
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Development of the Performance Based Plastic Design for Steel Moment Resistant Frame
M. Reza Banihashemi,A. R Mirzagoltabar,H. R Tavakoli 한국강구조학회 2015 International Journal of Steel Structures Vol.15 No.1
This paper presents the development of performance based plastic design (PBPD) method for steel moment frames withconsidering the gravity loads and P-Δ effects. In this method the design lateral forces are obtained from energy-work balanceequation by using pre-selected target drift and yield mechanism. For further improvement of PBPD method, some solutions arerepresented to precisely obtain the required moment of columns in order to prevent their yielding that leads to form undesirablemechanisms in the structure. In order to show more validity of PBPD method, two model frames, 5 and 10story, are designedbased on PBPD as well as elastic design method. The mentioned frames are evaluated by extensive nonlinear static pushoveranalysis and dynamic analysis. The results show that the frames designed by PBPD method reach the intended performanceobjectives in terms of yield mechanism and target drift levels. In contrast, the frame designed by Ed method experience largestory drifts due to flexural yielding of the columns. Since PBPD method is a direct design method, little or no evaluation areneeded after the initial design because the nonlinear behavior is built into the design process from the start.
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