Technical And Economic Research On The Construction Of Fabricated Shear Wall Structure

The development of prefabricated buildings is a major revolution in the way of construction and a revolution in production methods.It replaces traditional labor-intensive production methods with modern industrial production methods,which is conducive to improving the quality and quality of construction projects and improving engineering efficiency and efficiency..However,the scale-up of China's prefabricated buildings is just on the right track,and its industry scale and development trend are constrained by various factors.Among them,the problem of excessive construction cost and poor construction economy is that it restricts the prefabricated buildings.The most fundamental problem of development.The analysis and control of the construction cost of the prefabricated building construction stage has become a hot spot and focus of the discussion and research of the assembly building.This paper focuses on the construction technology and construction economy of the fabricated shear wall structure during construction.According to the assembled shear wall structure construction project,the construction technology and economy during the construction process of the assembled shear wall structure are comprehensively and carefully analyzed.Firstly,it introduces the background,research purpose and research significance of the topic,and summarizes the development history and research status of the fabricated shear wall structure at home and abroad.The related concepts of the fabricated shear wall structure system and the technical and economic characteristics in the construction are analyzed,which lays a theoretical foundation for the technical and economic analysis of the fabricated shear wall structure construction.On this basis,the actual construction and tracking of the prefabricated component design,production and production,transportation stacking and hoisting installation of the 5# building of Nanjing Hebin Garden was carried out.On the basis of field investigation,the paper analyzes and summarizes the technical characteristics of the fabricated shear wall structure construction,and further analyzes and summarizes the impact of the various aspects of the construction of the fabricated shear wall structure on the construction cost in the construction process.In order to study the engineering cost of the fabricated shear wall structure under different prefabrication rates,the authors tracked the prefabrication rates of 20.3%,30%,30.8%,and 62.27% of four different fabricated shear wall structures under construction.According to the project cost,the project cost of the four projects under construction is studied according to the cost components and the cost formation,and compared with the engineering cost under the traditional cast-in-place model.At the same time,the variation range of construction period of different projects is studied,and the quantitative relationship between prefabrication rate and construction period benefit is obtained.Furthermore,the prefabricated components are split and reorganized,and the quantitative relationship between the prefabricated building prefabrication rate and the engineering cost under the combination of prefabricated components is reasonably simulated based on the engineering cost data.Analyze the quantitative relationship between prefabrication rate and construction period,labor cost,material fee,sub-project cost,Jian'an engineering fee and total construction cost.Finally,based on the conclusions drawn from the research in this paper,reasonable suggestions are put forward from the perspectives of enterprises,industries and policies.Through the in-depth analysis of several specific cases,this paper provides theoretical support for the research of construction technology and construction economy of fabricated shear wall structure.The construction cost of the fabricated shear wall structure under different prefabrication rates is analyzed,and the quantitative relationship between the prefabrication rate and the corresponding project cost is obtained,and the qualitative relationship between the prefabrication rate and the engineering cost is quantified.Exploring ways and means to reduce the cost of construction of fabricated shear wall structures under existing development conditions.It provides reference for enterprises and governments to promote the decision-making of the construction of fabricated shear wall structure,which has important practical significance and practical application value.