Study On The Comprehensive Evaluation System Of Nearly Zero Energy Public Building Design

With the rapid development of the global economy and society,problems such as energy shortages and environmental degradation have become increasingly prominent,and energy conservation and emission reduction have become an important measure to achieve sustainable development.The construction industry is a prominent industry in energy consumption.At present,the energy consumption of my country’s construction industry accounts for 1/3 of the total energy consumption of the whole industry,and problems such as energy waste and lowefficiency energy are widespread.In order to achieve the goal of ecological and green sustainable development,near-zero energy buildings have been implemented and promoted under the promotion of relevant policy standards.In recent years,a considerable amount of near-zero energy buildings has emerged in China.However,the current research on near-zero energy buildings at home and abroad mostly stays at the technical research level,focusing on new technologies that are more energy-efficient and environmentally friendly,while neglecting their practical application effects.At present,there is still a lack of evaluation research on the practical application level of near-zero energy buildings,which has caused its actual performance to a certain extent not to meet expectations,especially for the more extensive research on near-zero energy public buildings.Based on this,this article focuses on the design stage of near-zero energy public buildings that has a key impact on the actual performance of buildings,and focuses on the comprehensive performance level of near-zero energy public buildings,which is a key issue that restricts the actual performance of near-zero energy public buildings.Use AHP,fuzzy comprehensive evaluation and empirical research to construct and verify the evaluation system of the comprehensive performance level of near-zero energy consumption public building design,in order to solve the current lack of evaluation system in the field of near-zero energy consumption building research,and the comprehensive design level is difficult to evaluate Practical issues.Specifically,this article firstly,on the basis of comprehensively expounding the relevant theories in the design stage of near-zero energy consumption public buildings,identifies the key factors that affect the overall performance level of the near-zero energy consumption public building design.The whole design stage is divided into three main parts: planning and design,architectural design,and design management,which constitute three first-level indicators and then decompose them step by step,analyze the important influencing factors of each indicator,and build a scientific and effective comprehensive evaluation system.Then,AHP method and fuzzy comprehensive evaluation method are used to construct the evaluation index model of near-zero energy consumption public building design stage.After that,actual architectural cases are used to verify the model,method and effectiveness of the model,and to judge the feasibility and applicability of the evaluation model.The evaluation result of the evaluated building case is "good",which basically meets the comprehensive level of near-zero energy consumption public building design.Finally,the evaluation results are analyzed and summarized,the shortcomings are pointed out,and guiding opinions are put forward for the design of near-zero energy consumption buildings in the future.This paper innovatively shifts the research perspective from the technical level of nearzero energy consumption building technology to the evaluation level of actual application performance.It is also the first time that the design phase is divided into more specific planning and design,architectural design,and design management.The evaluation method evaluates the comprehensive level of the design.This paper enriches the theoretical system of the near-zero energy building design stage and expands the application scope of evaluation research.It provides effective practical reference value for the design practitioners,relevant government personnel and relevant owners.