JAUE2024-002: The Superiority of High-Rise Timber Building in Life Cycle Perspective

Abstract

In the context of the current climate and energy crisis, urbanization, and the demand for environmental protection, green buildings，especially high-rise timber buildings (HTBs)，have become a significant trend in the global construction industry. This paper aims to analyze the performance of timber buildings at various stages of their life cycle and propose corresponding optimization measures. Due to advancements in Cross-Laminated Timber (CLT) technology, this form of construction has been promoted for its significant energy-saving and emission-reducing effects. Timber structures offer numerous advantages throughout their life cycle, including the design, construction, operation, use, and recycling stages. This paper integrates existing evaluation systems, such as Life Cycle Assessment (LCA), Life Cycle Energy Analysis (LCEA), and Life Cycle Cost Analysis (LCCA), addressing their shortcomings to create a comprehensive evaluation system specifically for timber buildings. Through the analysis of actual case studies, the Timber Life Cycle Assessment (TLCA) framework is proposed, focusing on materials, energy, costs, efficiency, and other aspects to explore the benefits of timber structures and suggest corresponding optimization measures and recommendations.