LAUSR

Based on the analysis of the lateral displacement mode and the deformation composition of shear wall structures, the inter-story displacement is divided into physical inter-story displacement and non-physical inter-story displacement. Then, the calculation method of the physical inter-story displacement of a shear wall in the elastic stage and simplified calculation methods in the elastic-plastic stage are given. On this basis, the proportion of the shear and bending deformations of the shear wall structure are analysed using Perform-3D finite element (FE) software. The variation law of the section rotation angle, the inter-story drift ratio, and the physical inter-story drift ratio along the height of the coupled shear wall and wall limb shear wall structure are analysed. Subsequently, a new dual control damage index of the deformation and energy is proposed, and the damage of the structure is evaluated. The results show that the inter-story drift ratio of the shear wall structure should be controlled by the physical inter-story drift ratio, and the shear displacement should not be ignored in the calculation of the inter-story displacement. The proposed dual control damage index of the deformation and energy can better reflect the damage of the structure.