Research On The Cost Management Of Prefabricated Buildings Based On The Pricing Model Of The Bill Of Quantities

After the long-term development and exploration of the construction industry,the assembled building ushered in a historic development opportunity.With the vigorous development of the national macro level and the continuous improvement of the construction industrialization industry,in this process,the cost management of assembly building has been paid more and more attention.At present,there is a big gap between the level and ability of cost management of assembled building in China and that of western developed countries,and a complete cost management system of assembled building has not been formed.Most of the newly-built assembly building projects in China still follow the measurement and pricing rules of traditional buildings,which reflects the current situation of cost management of assembly building in China,and there are some problems such as lack of laws and regulations and unreasonable pricing.Based on the valuation model of bill of quantities and the research of other scholars,this paper aims to analyze the problems existing in the current cost management of assembly building,and put forward corresponding countermeasures and suggestions,which can provide reference for the development of assembly building.Based on the basic theory of project cost management and the characteristics of assembled construction projects,starting from two aspects of project pricing basis and pricing mode,through market research and literature data collection and collation,this paper summarizes and summarizes the existing problems of cost management in the development of assembled construction in China at the emergence stage.Through in-depth understanding and analysis of the problem,the causes of the problem are discussed.At the same time,13 factors affecting the cost management are summarized by expert visits and practical investigations.An Interpretation Structure Model(ISM)is established to systematically analyze the factors affecting the cost management of assembly building.According to the hierarchical structure and the relationship among the influencing factors,the influencing factors are divided from low to high into three levels:direct impact layer,middle sandwich layer and macro impact layer,so as to find the key points of upgrading the assembly cost management system.This paper discusses the methods and measures to improve the cost management system of assembled construction from the two levels of government and enterprise(including both parties to the contract)and four stages of design,contract development,construction and completion settlement.On this basis,through practical engineering cases,the problems in the process of cost management are analyzed,and reasonable and feasible measures and countermeasures are put forward.