Research On Green Building Technology Evaluation Based On Comprehensive Benefit Of Resources And Environment

Human activities are changing the processes of the atmosphere,geology,hydrology,biology and other earth systems.The most significant changes include global warming,eutrophication of water bodies and soil acidification.Green building is a kind of technical means that mankind proposes to this kind of environment change.But what is green building,how to do green building is always a difficult problem.The national key research and development plan "objective and results-oriented green building design principle and method system" starts from the nature of green building and focuses on solving this problem.This paper is the basic research part of the development plan,which studies the evaluation system that can reflect the construction technology of resources and environment comprehensive benefit,from the resources and environment-building technology-the essence of green performance,and evaluates the green building techniques in order to optimize the environment friendly green high degree of technology,in the design of the green building and promoting green building progress.Through the analysis of resource consumption and environmental impact during the entire life cycle of the building,the study consolidates 12 major resources and environmental factors as research objects.Based on statistical data released by authoritative agencies such as the National Bureau of Statistics and the United Nations Environment Agency,system dynamics analysis methods are used as technical means to maintain the goal of sustainable development,and then the paper comprehensively considers the impact of economic development on resources and environment,and the mechanism of action of different resources and environmental factors in nature,quantifies the selected resource and environmental factors,and finds the overall input and unit environmental costs needed to maintain sustainable development.Through correlation analysis,12 kinds of resource and environmental factors are classified into four categories: atmosphere,water and land non-biomass resources.Through the order relationship method and according to the total environmental impact of each category,the category weights are determined,a weighted Euclidean distance method was used for comprehensive evaluation,the green degree of technology is determined,and a green building technology evaluation method based on the comprehensive benefits of resources and environment is finally proposed.The evaluation method can clearly reflect the resource and environmental impact of different technologies,compare the degree of greenness of different technologies,and can nest with the current evaluation criteria to make the evaluation score more objective and accurate.The new evaluation method developed in this study is applied to the selection and evaluation of the construction technology of a residential building in Tianjin.Green building technology evaluation method based on the comprehensive benefits of resources and environment can more objectively evaluate the green building technology,making up for the traditional green building evaluation method which cannot quantitatively reflect the comprehensive benefits of resource and environment and the defects of the value of the evaluation results.It is beneficial for designers to select green technologies with higher comprehensive efficiency of resources and environment in the process of architectural design,so as to lay a theoretical foundation for the formulation of more objective green building evaluation standards in the future,and to make green buildings more apt to the essential requirements of resources and environmental comprehensive benefits.