中日建筑全生命周期碳排放比较OA北大核心CSTPCD

The entire lifecycle carbon reduction of buildings has been widely applied and developed in Japan.Due to the similar regional characteristics,climate conditions,and cultural environment between China and Japan,the comparative analysis of building carbon emissions in China and Japan has high reference significance and value for the low-carbon development of buildings in China.However,due to the differences in the statistical caliber of carbon emissions throughout the entire lifecycle of buildings between China and Japan,it has brought difficulties to accurately carry out comparative analysis of carbon emissions in Chinese and Japanese buildings.In this study,an entire lifecycle carbon emission calculation model with the same caliber as China and Japan was first established from the aspects of calculation boundaries,statistical accuracy of building materials,and number of carbon emission factors.Based on this,a comparison and analysis of the entire lifecycle carbon emission characteristics of Chinese and Japanese building cases was conducted.It was found that the carbon emissions throughout the entire lifecycle of Chinese construction cases were slightly higher than those of Japan,especially during the operational phase,where carbon emissions were 43.52%higher than Japan.In addition,the performance of building materials has a significant impact on carbon emissions.Japanese buildings use low-carbon building materials to produce low carbon emissions and have a long service life,resulting in lower carbon emissions during maintenance and disposal compared to Chinese construction cases.