Research On Key Factors Of Cost Control Of Prefabricated Construction Project Based On BIM Technology

At present,there are still problems in the cost control of prefabricated construction projects in China,such as weak cost management awareness of various professional departments,poor communication between departments,waste of resources and lack of dynamic cost management.Based on the analysis of key factors of cost control based on BIM technology,the in-depth study of key factors is beneficial to reduce the total cost of prefabricated buildings,promotes the development of prefabricated buildings,saves resources and protect the environment.At the same time,combining with the case analysis,this thesis provides some references for the cost control of the relevant enterprises based on BIM technology.As for the research work,based on literature research,this thesis identifies 21 key factors of cost control of fabricated construction project based on BIM technology.And then,using Delphi method,the localization software platform of enterprises and the full application of BIM technology in each stage are successively modified to the degree of integration of design and production,and the workflow based on BIM is defined.The BIM engineering quantity and unit price control of materials and machines are deleted,and 20 key factors are obtained.Secondly,according to TOE theory,20 key factors are divided into three categories: technology,organization and environment.At last,the principal component analysis method is used to delete the factors of the statistical accuracy of BIM engineering quantities with factor load less than 0.6,and the three principal components and 19 key factors are obtained after dimension reduction,which effectively verifies the correctness of TOE theory in this thesis.In the conclusion,based on the case study of the key factors of cost control of the fabricated focused project based on BIM technology,the results show that the technology factor is the most important factor,the organizational factor is the second factor,but the technical factor and the organizational factor are similar,the two factors are in the same level,and the environmental factor is the least important factor.In the process of cost control of BIM-based prefabricated construction project,construction enterprises should pay attention to technical and organizational level.This thesis systematically studies the key factors in the cost control of prefabricated construction projects based on BIM Technology,which is conducive to the in-depth combination of BIM Technology and prefabricated project cost management,has certain theoretical research significance,and can also adapt to the current policy situation of carbon peak and carbon neutralization,which has practical research significance.