Academic citations
Peer-reviewed papers on structural performance, seismic resilience, and cultural significance.
Kyoto University RISH: Researchers have studied modified tsugite joint systems with retrofitting for seismic safety. Princeton: Daimochi tsugi research found hand-built joints outperformed CNC in precision; linear elastic models predicted cracking; performance improved with historical clamping forces.
Building Research Institute (Japan): Department of Building Materials tests wood structural performance. Structure Laboratory has 1,000-ton test machines, shaking tables, and pseudo-dynamic testing for earthquake simulation.
Journal of Wood Science (Springer): Nuki–column joint studies with hardwoods for moment resistance; friction coefficients, moment-rotation curves. Structurae: Kencho-ji temple seismic performance. Topics: tsugite tension, post-and-beam seismic behavior, miyadaiku cultural heritage preservation.