Analysis And Research On The Partial Fixing Of Basement Roof Of High-Rise Structure

With the rapid development of society and economy of the city,the building function towards the direction of diversification development,because of the city population and intensive construction land increasingly tense,all these factors make the building continue to be fastidious height and depth,therefore,more and more high-rise,high-rise building appear in front of us,at the same time,more and more people use the space developing to the underground,large chassis high-rise building gradually respected by the people.In the process of the development of the space of the city building to the height and depth,the structural designer is faced with a big problem: selection and determination of partial fixing.The selection of the partial fixing is reasonable or not,not only relates to the safety of the structure,but also the loss of people's lives and property.Effect of partial fixing selection and determination of many factors,the current standard has some relevant provisions,however,analysis of the effect on the soil around the basement of partial fixing,current specifications in China are also very fuzzy,therefore,to consider the soil around the basement constraints,high-rise building embedded the end of the reasonable selection and judgment,it has a certain significance.The research work of this paper is mainly reflected in the following aspects:The first chapter briefly introduces the current development trend of the building space,and lists the relevant engineering examples.A brief summary of domestic and foreign scholars on the issue of related research.The second chapter on the partial fixing the meaning of the detailed elaboration,based on the mechanical embedding and Strength embedding,we fully explain the similarities and differences between them.Secondly,a detailed list of the specific provisions of the current specification of the fixed end,furthermore,it detailed the relevant provisions of the interpretation;Third the characteristics of the basement of stress are analyzed;then this chapter simply introduces the several analysis methods of interaction of soil and structure around the room,this paper use the calculation model of soil spring;finally,Studying on the structure with basement the structure,we must choose the appropriate analysis model,by contrasting this article analyzes of two kinds of model analysis,the whole model is more reasonable.The third chapter mainly introduces the related theory of the spring stiffness method,how to determine the calculation model of the spring stiffness method in the application of this method,it detailed explanation and summary of the subgrade coefficient K.Through the model research and engineering example analysis,the fourth chapter discusses the different structure model under the condition of changing the lateral restraint of soil around the basement,and it analysis of dynamic characteristics,internal force characteristics and variation characteristics of structure.The fifth chapter focuses on the results of the previous chapters,and makes the relevant conclusions.Of course,we finally have a series of prospects for the future work.