Due to excessive human development, the Earth's environment is deteriorating day by day, making environmental issues a topic of international concern. How to reduce CO2 emissions in the construction industry is not only a hot environmental research topic in the construction industry, but also a necessary international responsibility in the future. Mastering the spirit of sustainable development, conducting a comprehensive and systematic life cycle assessment of buildings from birth to death, with a macro perspective, fully considering every aspect, and integrating the environmental impact and impact of buildings, is an important concept in modern green building assessment research. Establish local building lifecycle assessment data to provide important foundational research for domestic green building related research. By using this building lifecycle assessment model, we can calculate the carbon dioxide emissions of buildings at the beginning of construction, which can quantitatively assess the environmental damage caused by the construction industry. And with this, we hope to create green buildings with low environmental load. The summary of the results of this study is as follows:
1. Conduct inventory analysis and basic data statistics for building lifecycle assessment, which is an important basic database and serves as the source of basic assessment data for subsequent building lifecycle assessments.
2. Establish a calculation process and evaluation formula for the CO2 emission assessment method throughout the building's lifecycle. The lower the calculated CO2 emission value of a building, the more environmentally friendly it is.
3. Establish a simplified algorithm prediction formula for CO2 emissions of RC building body engineering, to predict the CO2 emissions of RC building bodies of different scales and types of buildings, and discuss the degree of environmental impact of buildings using scientific CO2 emission data.
4. Conduct a survey on the average demolition period of buildings on a large scale, and the average service life of buildings obtained is of great significance and assistance to China's urban renewal plans, urban planning, and housing policy formulation, which can provide important reference basis for China's construction policy planning; It also has significant reference value and significance for related industries, business circles, and academic research.
5. Through the simulation of building LCA cases, it is found that the proportion of CO2 emissions from new construction projects is relatively low, while the proportion of CO2 emissions from daily energy use is relatively high. Therefore, daily energy-saving measures for buildings are the most important part of CO2 emission reduction assessment in the building life cycle.
6. This study establishes the LCCO2 emission index for building lifecycle CO2, which establishes a clearer and more objective evaluation benchmark. We are able to analyze the environmental load impact of different design techniques on the life cycle of buildings, in order to obtain the most efficient CO2 emission reduction strategy