Seismic Performance Design Research On Residential Buildings Ultra High-rise Shear Wall Structure In High Seismic Region

With the rapid development of China’s economy, the super high-rise building has become the development trend of building in the city. The super high-rise residential buildings in China are not uncommon, the building structure design method is essential maturity. As for now, the engineering reference about high earthquake intensity area residential seismic performance of high-rise shear wall structure design in the domestic is one in a million, which leads to the lack of designing reference. C, the background of the project is kind of high-rise shear wall structure which is in the octave seismic intensity, site soil classification by Ⅲ class B level height and slightly irregular, that the engineering condition is rigorous, and is a representative of the the high-rise shear wall residential, the seismic performance design process of the project has a high reference value.This paper based on the background of engineering seismic performance of the design process as the main line, Encountered in the process of the seismic performance design of main structure scheme comparison, the determination of seismic performance target, the shear wall wall limb large tensile stress under three questions to do a thorough research, drawing the following conclusion:(1) Consideration must be given to both the safety and economy in the architecture project of the super high-rise building. Structure scheme comparison should first determine the structure of building, the foundation is basis on the premise of ensure the construction safety, priority is the building economy. In this paper, the background engineering scheme is selected though frame shear structure index is slightly better than that of shear wall structure of whole calculation, but because of frame shear structure of shear wall according to Te Yi Ji to carry on the design, make the shear wall reinforcement ratio of 40%, the project construction cost is increased, so it’s not the optimal solution, similar problem should cause enough attention.(2) Based on the background of engineering scheme the conclusion can be obtained: high-rise shear wall structure design should be increased when outside the plane stiffness, so as to improve the torsional capacity of the structure. Structure of short wall limb contribution to lateral stiffness of the structure is small, can be appropriately deleted, in order to reduce weight, reduce the earthquake effect of the structure.(3) The determination of high-rise shear wall structure seismic performance objectives is the top priority of the seismic performance design, according to the background project performance target determination process,which have certain universality, can be applied in engineering design(4) The high-rise shear wall structure under earthquake in the tensile stress in the wall limbs can’t increase wall limb area and large processing measures, At present domestic building structure with energy dissipation damping treatment and in the arrangement of steel reinforced concrete shear wall column two solutions: Through the study of the problems in the engineering background, the following conclusion can be obtained:Energy dissipation structure damping research at present domestic is not yet mature, less actual application, the technology is difficult; The study of the steel reinforced concrete shear wall has basic mature, more practical application, construction experience and construction quality have guarantee. Back wall limb tensile stress in the steel reinforced concrete shear wall can meet the engineering structure seismic performance goals, so can give priority to deal with steel reinforced concrete shear wall.