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A transfer matrix approach to free vibrations of coupled shear walls
Abstract A conceptually simple and computationally efficient numerical model, based on the transfer matrix technique, is proposed for the prediction of the elastic behaviour of coupled shear walls. The model developed allows for: variation of geometric and material properties with the height; shear as well as axial deformation of both walls and beams; a certain degree of rigidity at their joints; and subsidence as well as elastic movement of the foundations. The method is numerically implemented and applied to the evaluation of natural frequencies and modes of free vibrations of the structure. Good agreement of its predictions with experimental results confirms its accuracy and efficiency. Further comparisons with previously obtained numerical results lead to an assessment of the effect of shear deformation of the walls on the higher frequencies and demonstrate the capacity of the method to yield all types of vibrational modes within a predefined frequency range. The paper also assesses the effect of elastic foundation properties on the lower natural frequencies.
A transfer matrix approach to free vibrations of coupled shear walls
Abstract A conceptually simple and computationally efficient numerical model, based on the transfer matrix technique, is proposed for the prediction of the elastic behaviour of coupled shear walls. The model developed allows for: variation of geometric and material properties with the height; shear as well as axial deformation of both walls and beams; a certain degree of rigidity at their joints; and subsidence as well as elastic movement of the foundations. The method is numerically implemented and applied to the evaluation of natural frequencies and modes of free vibrations of the structure. Good agreement of its predictions with experimental results confirms its accuracy and efficiency. Further comparisons with previously obtained numerical results lead to an assessment of the effect of shear deformation of the walls on the higher frequencies and demonstrate the capacity of the method to yield all types of vibrational modes within a predefined frequency range. The paper also assesses the effect of elastic foundation properties on the lower natural frequencies.
A transfer matrix approach to free vibrations of coupled shear walls
Syngellakis, S. (author) / Papoulia, K.D. (author)
Engineering Structures ; 9 ; 265-271
1987-01-01
7 pages
Article (Journal)
Electronic Resource
English
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