2019 CSCE Annual Conference - Laval (Greater Montreal)

2019 CSCE Annual Conference - Laval (Greater Montreal) Conference

Simulation-based comparison of life cycle performance between CLT-concrete hybrid, CLT, and reinforced concrete structures in residential buildings in Canada

Mr. Yin Li, concordia university (Presenter)
Dr. Bruno Lee, Concordia University

With the emphasis on climate change and environmental issues, timber has become a building material that can compete with steel and concrete. One of the latest achievements in timber construction is the CLT hybrid system, which combines engineered timber with concrete. The CLT hybrid system is increasingly popular because of the complex shapes that can be created. Compared to a traditional reinforced concrete building, the hybrid system can reduce the carbon emissions, the fast construction duration, as well, create a safer structure system. Compared to a timber building, the hybrid system has higher fire safety and better thermal comfort. However, there is not enough quantitative research discussing the comparison of performance between the different systems.

In this paper, building performance simulation was used to evaluate the energy consumption and life-cycle environmental performance of the building comparing to the different systems. A typical residential building was selected as the case study. First, the structural design was applied for the different type of constructions according to the national building code, and then building performance simulation was applied to evaluate the energy consumption and carbon emissions in different locations in Canada. The results were separated into operational energy and embodied energy consumptions; the embodied carbon, and operational carbon emissions. The conclusions were found to vary for the different systems and locations in Canada.

Keywords: CLT, carbon emission, life cycle analysis