Research On Construction Cost Analysis And Control Of Prefabricated Concrete Buildings

At present,China is in a critical period to realize the objective of"double carbon".With its advantages of high production efficiency,short construction period,low environmental pollution,prefabricated buildings have become one of the development paths of building industrialization and an important means to achieve the"double carbon target".Therefore,the construction cost analysis and cost control of prefabricated buildings are studied,which is of great significance in promoting the coordinated development of building industrialization and intelligent construction,and promoting the low-carbon environmental protection and high-quality development of the construction industry.Based on this,the prefabricated concrete building is taken as the research object in this paper,from the perspective of construction cost,the cost composition of different stages is studied respectively.Based on the Data Envelopment Analysis(DEA)method,the construction cost control method of prefabricated building is established.The main research contents are as follows:(1)The shortcomings of prefabricated concrete buildings in China at this stage are summarized.The current development status of China’s construction industry and building industrialization is introduced,the development status of domestic and foreign prefabricated buildings is summarized,and the limitations of current cost control theories and methods are summarized based on the research progress of construction cost and cost control,and new cost control methods are proposed.(2)The cost control index system of prefabricated concrete construction is constructed.The construction process of prefabricated concrete buildings is divided into four stages:design,production,transportation and installation.The key costs of each stage are analyzed,which are taken as cost control indicators,and the cost control indicator system of prefabricated concrete buildings is constructed.(3)The cost control model of prefabricated concrete building is established.The advantages of DEA method are significant among common mathematical methods.It is determined to use C~2R model to comprehensively evaluate the effectiveness of DMU by the comparison of common models in DEA method,which can comprehensively reflect the input and output values of DMUs and realize the optimization of cost control.(4)The case study is used to verify the applicability of the cost control model.Taking the actual research cases as the analysis object,based on the established control index system,and taking the established cost control model application process as the steps,the data were analyzed and the results were output.By comparing the data results with the actual research situation,the effectiveness of the model was evaluated.