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      저자 : Abbas Sivandi-Pour (검색결과 2 건)
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        Equivalent modal damping ratios for non-classically damped hybrid steel concrete buildings with transitional storey

        Sivandi-Pour, Abbas,Gerami, Mohsen,Khodayarnezhad, Daryush Techno-Press 2014 Structural Engineering and Mechanics, An Int'l Jou Vol.50 No.3

        Over the past years, hybrid building systems, consisting of reinforced concrete frames in bottom and steel frames in top are used as a cost-effective alternative to traditional structural steel or reinforced concrete constructions. Dynamic analysis of hybrid structures is usually a complex procedure due to various dynamic characteristics of each part, i.e. stiffness, mass and especially damping. In hybrid structures, one or more transitional stories with composite sections are used for better transition of lateral and gravity forces. The effect of transitional storey has been considered in no one of the studies in the field of hybrid structures damping. In this study, a method has been proposed to determining the equivalent modal damping ratios for hybrid steel-concrete buildings with transitional storey. In the proposed method, hybrid buildings are considered to have three structural systems, reinforced concrete, composite steel and concrete (transitional storey) and steel system. In this method, hybrid buildings are substituted appropriately with 3-DOF system.

      • KCI등재

        Equivalent modal damping ratios for non-classically damped hybrid steel concrete buildings with transitional storey

        Abbas Sivandi-Pour,Mohsen Gerami,Daryush Khodayarnezhad 국제구조공학회 2014 Structural Engineering and Mechanics, An Int'l Jou Vol.50 No.3

        Over the past years, hybrid building systems, consisting of reinforced concrete frames in bottom and steel frames in top are used as a cost-effective alternative to traditional structural steel or reinforced concrete constructions. Dynamic analysis of hybrid structures is usually a complex procedure due to variousdynamic characteristics of each part, i.e. stiffness, mass and especially damping. In hybrid structures, one or more transitional stories with composite sections are used for better transition of lateral and gravity forces. The effect of transitional storey has been considered in no one of the studies in the field of hybrid structures damping. In this study, a method has been proposed to determining the equivalent modal damping ratios for hybrid steel-concrete buildings with transitional storey. In the proposed method, hybrid buildings are considered to have three structural systems, reinforced concrete, composite steel and concrete (transitional storey) and steel system. In this method, hybrid buildings are substituted appropriately with 3-DOF system.

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