Concepts,Methods and Tools for Building Life Cycle Assessment Based on Literature Clustering
In order to accurately understand the current research status and trend of the concepts,methods and tools of building life cycle assessment,this paper systematically combs the concepts,methods and tools involved in five fields of building life cycle assessment from the perspective of literature clustering,including BIM-LCA,hidden carbon and hidden energy consumption,urban scale LCA,circular economy,dynamic and forward-looking LCA.The research results show that the development direction of tool level is to integrate LCA tools into BIM and expand localized LCA database;The study of the hidden stage of buildings is not deep enough,especially in the renovation stage,the impact assessment and the reduction of the economic cost of hidden carbon need to be further explored.Different urban scale LCA methods have their advantages and disadvantages,and the results vary greatly.The researches related to circular economy mainly focus on the component level,and the transparency and availability of LCA results should be improved in the future.There are few researches on building dynamic LCA in China,and a more standardized quantitative method is the future research direction.