The Research On Arrangement And Influencing Factors Of Shear Walls Of High-Rise Residential Buildings

With the continuous development of society,new residential development to the high-level structure has become a trend so as to more and more people pour into the city.Shear wall structure,as one of the main forms of high-rise building,is widely applied in modern high-rise buildings.In actual project,the designers are often based on experience to complete the layout of shear wall.Generally,engineers design excessive quantity of shear war as the secure consideration,but they are unable to make full use of shear wall's carrying capacity.Thus,the research on the design of the high-rise shear wall structure has a certain practical significance.With the analysis of engineering examples by vibration mode decomposition response spectrum method and the elastic time history analysis method,the paper makes a study of shear wall's quantity,layout and the influence of quantitative evaluation.The main contents are as follows:1.The paper sketches out the development of high-rise building both in China and abroad and also introduces its structural pattern and features as well as mechanical characteristics of high-rise shear wall structure.There are no specific rules for optimal quantity and reasonable layout of shear wall.So it is meaningful for my selected topic basis2.The paper gives an overview of shear walls' classification and their discriminate.Furthermore,the paper makes a summarization about computing method under different load,different types of shear wall's mechanical property and integrated cross-section wall and opening wall's internal force and displacement.Simultaneously,it introduces the way to choose computational procedure.3.Making an analysis and calculation on engineering project by using finite element software SATWE,the paper aims to study the dynamic characteristics,deformation characteristics and internal force through the change of shear wall' s position and adjustment shear wall' s quantity.The result demonstrates that by properly reducing internal part of the shear wall structure and enforcing shear wall' s length around the structure and the length of the flange,the model is in a reasonable stiffness which has better torsional effect.At the same time,it makes the structure more economic and reasonable.4.Through the structure of the elastic time history analysis,we can see that vibration mode decomposition response spectrum method is more conservative than time history analysis in the earthquake shear diagram and the interlayer displacement angle diagram.Using EPDA&PUSH software for severe earthquake structure under the action of static elastoplastic analysis,interlayer displacement angle meets the specification for the rules of the elastoplastic interlayer displacement angle limit.5.The paper studies the influence of reasonable number of shear wall by using finite element software SATWE to analyze the model.Taking the storey height and concrete strength grade,wall thickness those three factors on the structure into account,the paper quantitatively analyzes the relationship between stiffness of shear wall and parameters variation and the change rules of mechanical characteristics such as the maximum interlayer displacement Angle,the ratio of rigidity-to-gravity,earthquake shear force;At the same time,they also analyze the law of the change between adjustment layer number of shear wall thickness and the law under the condition of guaranteeing structure down to the condition of invariable interlayer displacement angle.