Research On Comprehensive Benefit Evaluation Of Prefabricated House

Housing industrialization is an important organizational form to promote technology integration,collect innovative resources and guide industrial upgrading.It is also an industrial chain of housing industrial production formed by the integration of various industries.The implementation and promotion of housing industrialization in China has become the only way for the structural transformation and upgrading of the construction industry.In recent years,although the housing industrialization development of our country has obtained certain achievements,but also failed to make the corresponding scale,is still in the early stage of development,so about how to scientific and effective promotion of prefabricated buildings(residential)development,researching prefabricated housing comprehensive benefits,and construct the evaluation model,the objective recognition prefabricated construction level of development,improve the housing industrialization regional coordination planning,reasonable deployment and management optimization decision-making is of important theoretical and practical guiding significance.Paper first through the literature research analysis of domestic current situation of the development of housing industrialization,summarizes the research path,prefabricated building(residential)in our country development present situation,characteristics,advantages and bottleneck problem,compared to traditional cast-in-situ construction after data analysis,the conclusion prefabricated construction(housing)of the development of the four important dimensions,namely,social factors,economic factors,technical factors and environmental factors,and subdivide the 25 items specific impact factor,Related to the degree of policy support,perfect laws and regulations construction,the integrity of the system of technical standards and industrialization base number(file),the scale of production,logistics,supply chain enterprise management ability,the cost of materials,mechanical equipment cost,artificial cost,transportation cost,construction installation,design,construction scale and form,assembly rate,degree of product standardization,integration,project management level,industry specialization level of workers,carbon dioxide emissions,and electric power resources.Second,the introduction of analytic hierarchy process(ahp)construct the prefabricated buildings(residential)comprehensive benefit evaluation model,from prefabricated housing project with comprehensive benefit evaluation,through questionnaire investigation and expert scoring method and reasonable to determine the weight of each influence factor,can be seen from each factor index analysis,assembly rate,the cost of materials,construction scale and form,carbon dioxide emissions,degree of product standardization and integrated the five indicators is the key factor affecting the development of prefabricated building(residential).Finally,in the empirical analysis section,using the multivariate linear regression analysis by SPSS software research prefabricated housing project assembly rate,material cost,labor,machinery,installation and transportation cost,measures,project management level to the influence degree of the cost increase,assembly rate,measures and the project management level has a significant influence on cost increase,better explains the seven factors and the mutual relationship between cost increase,and prove the effectiveness of the comprehensive benefit evaluation model,on the basis of the main influence factors,From the policy system,the technology system,the production cost,the scale benefit and the industry support five aspects pertinactly proposed has the practical guiding significance development measure and the suggestion.Papers on the system innovation research has the certain innovation and breakthrough single perspective,build up the benefit evaluation model from broad sense,based on the social factors,economic factors,technical factors and environmental factors in comprehensive benefit evaluation analysis,and using the method of combining qualitative and quantitative for prefabricated buildings(residential)influence factors are analyzed,for the construction industry and related enterprises in the development of technology and expand the scale of investment decision provides reference and research basis for the all-round development of prefabricated construction in our country.