The Analysis Of The Seismic Performance Of Frame-Supported Shear Wall With Transfer Beams&Truss Transfer

With the continuous advance of our country socialist modernization, the urbanization has become the development trend of modern society. Urban population increasingly intensive, housing extremely shortage, high-rise buildings have mushroomed. In recent decades high-rise buildings haved developed gradually, and rapidly develop in the21st century, at the same time, people are also put forward more and higher requirements of the function of the high-rise building, prompting civil engineering staff analysis more and more in-depth of the construction of high-rise buildings. The frame-supported shear wall structure is widely used because of as much as possible to meet the demand of different functions. Bottom floors in frame-supported shear wall structure are as shopping malls, hotels and cultural or recreational facilities, the upper floors as residential, to meet the needs of different vertical function at the same time. Because the frame-supported shear wall structure is opposite of ordinary building structure, it’s the structure with rigid upper stories and flexible bottom, so you need to set structural transfer story to achieve stiffness transformantion. Current transformation layer forms, the study also deepended,the influence of different conversion layer has a different kind of impact on the building, how to select a reasonable conversion layer can become an important research direction about frame supported shear wall structure.This paper has done the following work on frame-supported shear wall:1.according to the project example, selecting the frame-supported shear wall structure as the research object,establish frame-supported shear wall with transfer beams using finite element analysis software PKPM and MIDAS/GEN; By changing the transformation layer form,replaced with truss transfer, reestablish frame-supported shear wall calculation model changing beam transformation layer to truss tranfer, and adjust two models to make them meet the specification requirements then make structural layout reasonable as much as possible.2. using PKPM and MIDAS/GEN analysis of seismic response spectrum analysis and dynamic time history of two kinds of transformation layer structure, comparison of cycle ratio,axial compression ratio displacement of interlayer,displacement angle,shear layer, shear of interlayer between two different frame-supported shear wall. Through the comparative analysis the change of these parameters, find the characteristics of the frame-supported shear wall with two different transformation layer forms.The analysis results show that the truss type transfermation layer can effectively change the force transmission route,increase the axial compressive ratio of frame-supported culumn and shear wall at the bottom, give full play to the compressive properties of concrete materials, make the structure more reasonable; truss frame-supported shear wall has better resistance to lateral stiffness and torsinoal stiffness than the beam frame-supported shear wall, reducing the the lateral displacement of the structure of the whole; truss transformation layer has greater stiffness than the beam transfermation layer,can bear more seismic shear force. Beam frame-supported shear wall has greater response of seismic than truss frame-supported shear wall.