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- 저자 : Hamed Esmaeili (검색결과 1 건)
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Mohammad Bazzaz,Mohammad Ali Kafi,Ali Kheyroddin,Zahra Andalib,Hamed Esmaeili 한국강구조학회 2014 International Journal of Steel Structures Vol.14 No.2
Braced structures with concentric braces are among earthquake resistant systems that are widely used in frames with jointconnections. Ductility, dissipation of energy and decreasing in base shear are the benefits of these bracing systems. Despite thebenefits mentioned limited ductility of concentric braces, however, caused poor functionality against earthquake. Therefore inthis paper, new bracing system using circular element (circular dissipater) has been evaluated, in order to replace damagedmember without needing rehabilitation or repair of general system. So using nonlinear software package ANSYS a frame withoff-centre bracing system with optimum eccentricity (OBS-C-O) and another frame with same specifications without circularelement (OBS) has been created. The function of general system has been studied for the first time. Linear and nonlinearbehavior of these two frames compared to each other so the benefits of this circular element in an off-centre bracing systemare highlighted. The analytical results and comparison between plots of these two models showed that the first model has higherperformance than the others.
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