Analysis And Countermeasure Research On Key Influencing Factors Of Prefabricated Construction Cost Control

With the comprehensive coverage of China’s urbanization and the continuous development of new technologies and materials,the traditional construction industry has developed significantly,and along with it,more and more construction techniques have been produced.Traditional concrete structures,because of their chaotic on-site construction,high labor intensity and uncontrollable material loss,gradually require easier,faster and more efficient construction modes.Since the 19 th National Congress,under the guidance of General Secretary Xi Jinping’s concept that green water and green mountains are the silver mountain of gold and the basic national policy of protecting the environment and conserving resources,it is imperative to establish an energy-saving and green building structure system,and the assembled building can significantly meet some of the expected expectations due to its own technical characteristics,but the assembled building is still difficult to promote due to the high cost and lack of management mechanism.However,it is still difficult to be promoted for the time being due to high cost and lack of management mechanism.Therefore,to explore the key elements and measures of prefabricated building cost control,for assembled buildings to provide a basis for cost management for actual project management has become an objective need and a real problem to promote the process of low-carbon and green transformation of China’s construction industry,in view of the key problem of high cost of assembled buildings.This paper explains the relevant concepts and basic theories of prefabricated construction cost control,constructs a hierarchical system of influencing factors for prefabricated construction cost control,determines the weight of influencing factors in the system and finally determines the key influencing factors by using the analytic hierarchy process;On this basis,this paper selects the prefabricated building G project in Chongqing as a research case,and uses the combination of analytic hierarchy process and fuzzy comprehensive evaluation method to comprehensively analyze and evaluate the cost control status of prefabricated building of project G.The research of this paper shows that the four stages of design,component production,transportation and construction installation are very important for the cost control of prefabricated buildings in the construction(construction)process of prefabricated buildings,and the corresponding design integrity analysis,prefabricated component quality,transportation mode and construction machinery layout of each stage are the key weak factors(key influencing factors)for the cost control of prefabricated buildings.Based on this,the paper tries to put forward the overall path of the whole process control of the prefabricated building cost,and puts forward general cost control measures from four aspects of design,component production,transportation and construction installation,namely,controlling the prefabricated rate of prefabricated buildings in the design stage,strengthening the standardization of prefabricated component design,and establishing an information exchange platform based on BIM technology;Improve the degree of production specialization and reduce mold cost in the component production stage;To reduce transportation costs and short-term storage costs,reasonably arrange vehicles and optimize transportation plans in the transportation stage;In view of the training and enhancement of the professional and technical level of operators in the construction and installation stage,optimize the installation management,do a good job in the construction organization design and organization management,and improve the coordination ability between types of work.