Preliminary sensitivity study on an life cycle assessment(LCA)tool via assessing a hybrid timber building

作     者：Tiancheng Wu Meng Gong Jennifer Xiao 

作者机构：Faculty of Forestry and Environmental ManagementUniversity of New BrunswickFrederictonNB E3C2G6Canada Department of BiologyQueen’s UniversityKingstonON K7L3N6Canada 

出 版 物：《Journal of Bioresources and Bioproducts》 (生物质资源与工程（英文）)

年 卷 期：2020年第5卷第2期

页      面：108-113页

核心收录：

学科分类：0710[理学-生物学] 0831[工学-生物医学工程（可授工学、理学、医学学位）] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 082902[工学-木材科学与技术] 0907[农学-林学] 08[工学] 0829[工学-林业工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0901[农学-作物学] 0702[理学-物理学] 

基　　金：Forest Products Laboratory New Brunswick Innovation Foundation, NBIF 

主　　题：Life cycle assessment Hybrid timber structure Environmental indicator Sensitivity study 

摘      要：In order to address concerns related to global warming and increased atmospheric carbon content,the life cycle assessment(LCA)tool has demonstrated usefulness in the building and construction sector.The LCA is used to evaluate environmental impacts concerning all stages of the building process from“cradleto“grave.The LCA helps promote sustainable development by considering environmental indicators such as stratospheric ozone depletion,eutrophication,global warming potential,and many more.It is of an interest to know the degree of impact on a given environ-mental indicator if an input is changed in terms of the type or amount of the materials used.The LCA software Athena IE4B was employed to analyze data of a selected timber building.This study was aimed at evaluating the sensitivity of LCA analysis on a hybrid timber building,which was done via two case studies.Case 1 focused on changes in the volume of wood materials,meanwhile Case 2 focused on simultaneous changes in the volume of materials for wood,steel,and concrete.In Case 1,it was observed increasing wood materials increased environmental indicators,with stratospheric ozone depletion being the most sensitive and global warming potential as the least sensitive.Case 2 discovered that proportionally increasing wood materials in relation to steel and concrete materials decreased environmental indicators,with eutrophication being the most sensitive and stratospheric ozone depletion as the least sensitive.This study helped support the feasibility of using Athena IE4B for LCA analysis in the initial assessment of a building.