Study On Controlling Factors Of Optimizing Shear Walls Of High-Rise Residential Buildings

As the main structure form in tall buildings, the shear wall structure has been widely used in the field of modern tall buildings. (JGJ3-2002) has made some provision to shear wall's design principles, calculation methods and construction measures, but not particular enough or lack of feasibility. Nowadays in project practice, most of the layout of shear wall is mainly depended on the designers'experience. We can't ignore the phenomena that considering the structure's safety and design progress, the designers often have to adopt a more conservative structure arrangement plan, however, on some degrees, the plan can be neither economic nor security. Therefore, it is very necessary to carry on the suitable optimization to the shear wall structure arrangement.In this paper, we analyzed some a tall building's shear wall structure in Guangxi, adopting our country's current structure calculation software SATWE to model and analysis, studying the structure's dynamic characters, deformation, internal force characters and structure measures to optimize the structure. And we also contrasted the optimized structure's performance and efficiency to the original one's. Because of the problems which were found during the optimization, this text simply examined the rational rigidity of shear wall structure by calculation and analysis.Through the analysis above, we could come to the following conclusions:1, to this project, the optimized design has obtained obvious actual effect, such as 30% shear wall has been decreased, the structure's rigidity has been more reasonable because we had changed some"一"type shear walls into"T"or"L"type ones, earthquake effect has been reduced, and the structure is more economic.2, it is very important to control the shear wall structure's quantity and layout, too many shear walls can not only increase the earthquake effect, but also be less economic.3, by verifying the framework's deformation and restricting the axial compression ratio, we could optimize the shear walls'quantity and layout. Under the...