Urban building carbon emissions based on BIM-LCA-GIS

Area of Science:

• Sustainable Construction
• Environmental Engineering
• Urban Planning

Background:

• Traditional cast-in-situ construction methods generate significant lifecycle energy consumption and carbon emissions, conflicting with green development.
• The prefabricated building model offers advantages in energy efficiency and reduced environmental impact.
• Accurate carbon emission analysis is crucial for optimizing prefabricated construction practices.

Purpose of the Study:

• To develop an integrated model for in-depth carbon emission analysis of prefabricated buildings.
• To quantify and assess carbon emissions across all lifecycle stages of prefabricated construction.
• To provide data for promoting low-carbon and energy-efficient building practices.

Main Methods:

• Integrated Building Information Modeling (BIM), Life Cycle Assessment (LCA), and Geographic Information Systems (GIS) model.
• Quantification and assessment of building materials and structural components' impact on energy efficiency and environment.
• Spatial analysis using input-output and ecological footprint analysis.

Main Results:

• Accurate quantification and in-depth analysis of carbon emissions at each lifecycle stage of prefabricated buildings.
• Acquisition of specific and reliable carbon emission data.
• Clarification of spatial distribution characteristics and influencing factors of carbon emissions.

Conclusions:

• The integrated model overcomes limitations of single-method analysis, improving accuracy and comprehensiveness.
• Findings offer valuable insights for promoting low-carbon and energy-efficient building practices.
• The study advances the development of low-carbon buildings through robust data analysis.