Research On Several Design Problem In A Super-High-Rise Frame-Corewall Building

With the continuous development of China’s economy and real estate, super-high-rise buildings are increasing in major cities. With the increasing height of buildings, structure type is also more complex. The structural designs of these buildings have been far beyond the norm corresponding requirements. Due to the complexity of super-high-rise buildings, whether from the structure as a whole, or structural elements, the design of super-high-rise structures is much more difficult than the design of general high-rise structures. We will encounter many special problems in the design process. How to solve the problem in the design process of super-high-rise buildings is the primary task for the structural engineers.In this paper, I solve three problems when I do the design of a super-high-rise frame-corewall building in Longyan City, Fujian Province. Such as:(1) According to the design requirements of the owners, this project is an over Class B height super-high-rise building. I find that its plane structure is irregular, and its vertical stiffness is irregular, too. It contains a structurally weak layer. I analysis its seismic performance respectively under "small earthquakes","middle earthquakes" and "big earthquakes". The end result can not only meet the requirement of related specification, also can satisfy the seismic performance of the index design goal.(2)According to the relevant specification, after using the present domestic several building structure design software(SATWE、PMSAP、YJK and MIDAS) I find that the calculation results of the shearwall of these software is different. After comparing the calculation results of shear wall in different software, I use the reasonable value of shearwall components by a qualitative judgment method of this project calculation results.(3)Shearwall is the main component to resist lateral force. There are differences in the performance of shear wall structures because of the axial compression ratio, longitudinal reinforcement ratio, stirrup reinforcement volume rate even the edge conditions of shearwall. The common structural design software does not consider these factors. Using nonlinear finite element software ABAQUS to analyze the performance of the shearwall, with the influence about axial compression ratio, reinforcement ratio, stirrup reinforcement ratio and volume edge of shear walls, I provisional corresponding measures.In this paper, based on transfinite high-rise building structure engineering example I make a detailed analysis of the seismic performance, at the same time the design of shearwall with performance-based analysis done in-depth research. I put forward some design Suggestions as a reference for structural engineers doing similar engineering design.