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Lateral Stiffness of Steel Shear Wall Systems
Lateral stiffness is an essential design parameter for steel shear wall systems. The research presented in this paper consisted of conducting nonlinear finite element analyses of steel shear wall systems to investigate lateral load resisting strength as well as lateral stiffness of this type of structural systems. Detailed parametric studies were carried out to provide a better understanding of initial buckling behavior, lateral stiffness during the pre- and post-buckling region as well as during the post-yielding region. The studies indicated that initial buckling generally occurs under relatively small drift in the order of 0.0002 radians and after buckling the stiffness of the wall is reduced to less than 70% of its initial stiffness. When the steel shear wall yields, the stiffness rapidly decreases to the level of stiffness provided by the frame alone, which in general was about 20% of the total stiffness. In the parametric studies, the effects of wall thickness, strength and stiffness of the boundary elements as well as aspect ratio of the wall were varied and their effects on the lateral stiffness studied.
Lateral Stiffness of Steel Shear Wall Systems
Lateral stiffness is an essential design parameter for steel shear wall systems. The research presented in this paper consisted of conducting nonlinear finite element analyses of steel shear wall systems to investigate lateral load resisting strength as well as lateral stiffness of this type of structural systems. Detailed parametric studies were carried out to provide a better understanding of initial buckling behavior, lateral stiffness during the pre- and post-buckling region as well as during the post-yielding region. The studies indicated that initial buckling generally occurs under relatively small drift in the order of 0.0002 radians and after buckling the stiffness of the wall is reduced to less than 70% of its initial stiffness. When the steel shear wall yields, the stiffness rapidly decreases to the level of stiffness provided by the frame alone, which in general was about 20% of the total stiffness. In the parametric studies, the effects of wall thickness, strength and stiffness of the boundary elements as well as aspect ratio of the wall were varied and their effects on the lateral stiffness studied.
Lateral Stiffness of Steel Shear Wall Systems
Shi, Yongjiu (author) / Astaneh-Asl, Abolhassan (author)
Structures Congress 2008 ; 2008 ; Vancouver, British Columbia, Canada
Structures Congress 2008 ; 1-10
2008-10-14
Conference paper
Electronic Resource
English
Lateral Stiffness of Steel Shear Wall Systems
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