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STRENGTH AND ENERGY DISSIPATION OF TIMBER SHEAR WALLS SUBJECTED TO ARBITRARY DEFORMATION HISTORY

Repeated cyclic loading is thought to decrease force and deformation capacity of timber shear walls due to the fatigue behavior. This study deals with evaluation of strength and energy dissipation of two typical timber shear walls subjected to various deformation history in order to develop a response spectrum method considering fatigue behavior. Static loading tests and shaking table tests were conducted to observe the fatigue behavior. Finally, evaluation formulae for strength and equivalent damping ratio were proposed. They were capable of predicting test results with acceptable accuracy.