Application Of Improved Topsis Method In Construction Safety Evaluation Of High-rise Buildings

In recent years,with the continuous development of urbanization,the increasing population,urban land resources become more and more precious,therefore,in order to more rational use of limited land resources,high-rise housing construction projects came into being and become the inevitable development of the city way.At the same time,because the high-rise building project has the characteristics of large engineering,complicated process,long construction period,high technical level and large demand for funds,there are many safety problems in the construction process,and the problems are varied and exist with each other With a complex relationship,and in a state of dynamic changes in development,so that induced a large number of security incidents.In order to ensure the smooth progress of high-rise building construction projects and to control and reduce the occurrence of various safety accidents,it is necessary to study the construction of high-rise buildings in combination with safety management theory and methods.In this paper,high-rise building construction project is taken as the research object.The construction of high-rise building construction safety evaluation system is studied from many aspects.First,by analyzing the characteristics of high-rise building construction and the common high-rise building safety accident type,The author analyzes the safety evaluation index system of the high-rise building project,and constructs the safety evaluation system of the high-rise building project based on the combination of the G1 method and the entropy weight and the improved TOPSIS principle.In this paper,the safety evaluation system of the high-rise building project is established.Model,using the combination method of G1 method and entropy weight,the deficiency of single weighting method is abandoned,and by introducing the correction coefficient of "score equilibrium degree",the gap between the scores of each project is opened,The indicators of the project close to the score even resulting in the problem of inaccurate ranking.Using the improved TOPSIS comprehensiveevaluation method,through the analysis of the conclusions of the study,both the advantages and disadvantages of a number of projects can be compared,but also can reflect the lack of certain aspects of a single project,expanding the TOPSIS method of application,The safety evaluation of high-rise building projects provides a new approach.