Study of Seismic Earthquake for Frame-Shear Wall Structures Under Earthquake

A dynamic modal was presented to study the arthquake effect on tall frame-shear wall buildings under the interaction of frame structures and shear wall structures.The influence of the part of frame structure to tall frame-shear wall buildings was considered by boundary conditions,and the frequency equation and mode orthogonal conditions of tall frame-shear wall buildings were derived.Then vibration equation of infinite-degrees frame-shear wall buildings was decoupled by these orthogonal conditions and the generalized mass and stiffness were obtained.Therefore,the seismic responses of tall frame-shear wall buildings can be solved by the mode superposition method.In order to validate the correctness of the dynamic modal and the method of solving earthquake effects for tall frame-shear wall buildings,a ten-story frame-shear wall building was chosen to analyze dynamic character and seismic response.Results showed that the dynamic character and seismic response obtained by the dynamic modal and the method of solving seismic response are basically consistent with finite element,the calculation accuracy can meet demand and calculation work can be reduced.