Analysis Of Influencing Factors Of Cost-benefit Of Passive Buildings In Small And Medium-sized Cities

In the process of building small and medium-sized cities and promoting the modernization process,natural environment and resource issues have become increasingly prominent.People are eager to explore a new development method to change today’s environmental and resource issues.Passive architecture is an important green building development model.Large cities currently have relatively complete policy standard systems and management technology systems,while small and medium-sized cities have a large gap with large cities in the development of passive buildings.The development is slow,and cost-effectiveness issues are the main factors affecting the promotion of passive buildings in small and medium-sized cities.the reason.Therefore,finding the influencing factors of cost-benefit,reasonably controlling costs,and improving the economic benefits of passive buildings is of great significance for promoting the development of passive buildings.This paper takes passive buildings in small and medium-sized cities as the research object.First,by studying the incremental cost and benefit composition of passive buildings in small and medium-sized cities,it is found that the incremental cost occurs in the whole life cycle.The increase in cost due to the use of passive technology,but the incremental benefit It is mainly due to the energy-saving economic benefits generated in the operation stage due to the use of passive technology.Therefore,finding the factors that affect the cost and controlling the increase in the cost can relatively improve the efficiency.Preliminary identification of the factors affecting the cost-effectiveness of passive buildings in small and medium-sized cities include social,management,economic,and technical aspects.Through literature analysis,expert surveys and actual work experience,the indicators are analyzed to find 8 secondary indicators and indicators that affect cost-effectiveness.24 three-level indicators to build an indicator system for cost-benefit influencing factors.Through the expert survey method,combined with the gray correlation degree and the analytic hierarchy process,the gray weighted correlation degree model is constructed,weighting the influencing factors of cost-benefit,and finding the 4 factors that affect the cost-benefit degree of passive buildings in small and medium-sized cities the most are the industry standards The promulgation,the promulgation of incentive policies,the technical level of the construction parties and the management experience and level of the construction party,and the recommendations for reducing the passive construction costs and increasing benefits of small and medium-sized cities based on these four factors.Finally,combined with the Wen’an Industrial Park project in Langfang City,Hebei Province,the incremental cost and incremental benefits of the project were analyzed,and the economic feasibility of passive buildings in small and medium-sized cities was judged.Experts scored the cost-benefit factors of the project.Once again Construct a correlation model,verify its applicability,and find that if small and medium-sized cities reach the same level of passive construction as large-scale cities in terms of society,management,economy,and technology,they can further control costs,increase benefits,and better promote the passive construction of small and medium-sized cities.Building development.