Proposal for Column-Beam Joint System in Korean Mid-and High-Rise Timber Structures

Mid and high rise timber structures, enabled by advancements in engineered timber materials like cross-laminated timber (CLT) and glued-laminated timber(GLT), are emerging as sustainable and economical solutions in modern architecture. Despite international progress, South Korea faces challenges due to insufficient regulatory and technical frameworks that limit compliance with international standards. This study reviewed existing research on column-beam connections, analyzed relevant hardware, and compared international case studies to identify limitations and advantages. The findings revealed that many connection systems failed to meet Koreas 3-hour fire-resistance requirements, underscoring the need for technological advancements and regulatory updates. Hybrid methods, such as steel-timber composite and steel-timber system, demonstrated exceptional performance undercomplex loading conditions and were identified as particularly suitable for adaptation in Korea. International case studies have highlighted the effectiveness of hybrid designs that combine CLT with reinforced concrete, offering structural stability and enhanced fire resistance. These examples suggest that adopting hybrid systems can bridge the gap between domestic and international standards. This study concludes with a proposal to standardize hybrid design approaches by incorporating domestic CLT and GLT to improve the safety, feasibility, and sustainability of timber construction in Korea. This framework addresses existing technical and legal deficiencies and positions timber construction as a viable solution for eco-friendly and cost-effective urban architecture.