Research On The Optimal Design Of Shear Wall In High Rise Buildings

In recent years,the rapid development of China’s economy has improved people’s living standards,the urban population is increasing,the urbanization rate is gradually increasing,and the urban land area has become increasingly tight.To solve this problem,urban buildings have to be replaced by low-rise buildings.Development to the top.In the design stage of high-rise buildings,there are often many places where the structural components are irrationally arranged.There will be certain safety problems after the construction is completed,and there is a large gap between the budgetary cost before construction and the actual cost after completion.Design and optimization are more important.If the structural engineer can initially choose a relatively reasonable plan,and through calculation,analysis and optimization,a structure that is reasonable in all indicators is obtained,which is of great significance to the design of the structure.In this paper,based on engineering examples,the residential structure of high-rise shear wall is taken as the research object,and the shear wall structure model is established with PKPM software according to the shear wall layout in the architectural design stage.Under the action of seismic force and wind load,through different shear wall layout schemes,the optimal design of high-rise building shear wall structure by structural vibration period,interlayer displacement,interlayer displacement angle and interlayer shear bearing capacity is analyzed.The main contents of the research are as follows:Taking the number of shear walls and the length of the legs of the shear walls as design variables,and the modal period of the structure,the interlayer displacement,the interlayer displacement angle,the floor shear capacity,etc.as the objective functions,the structure is optimized by SATWE to get the most optimized shear wall layout plan.From the above analysis,it is concluded that the number of shear walls and the length of the legs of the shear walls are important factors for structural optimization design.The optimization of the shear wall structure can be optimized from this aspect.Taking the thickness of the shear wall as the design variable,the vibration mode period,the interlayer displacement,the interlayer displacement angle and the shear bearing capacity of the floor as the objective functions,the SATWE was used to optimize the structure and the study found that: the thickness of the shear wall is also an important factor for structural optimization design.To optimize the structure of the shear wall,the thickness of the shear wall can also be optimized.