Free vibrations of stiffened coupled shear walls
This paper presents the free vibration analysis of stiffened coupled shear walls based on a discrete–continuous approach. The stiffened system is reinforced by an additional stiffening beam at some level of the structure. This induces additional axial forces, and thus reduces the bending moments in the walls, as well as helping to reduce the lateral deflection. The effect of the stiffening beam on the free vibration characteristics of coupled shear walls is studied, and numerical investigations show that the natural frequencies of vibration can be significantly increased. The optimal position for the stiffening beam to increase as far as possible the first natural frequency of vibration is also presented. © 1998 John Wiley & Sons, Ltd.
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Document Type: Research Article
Publication date: 1998-06-01
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