Abstract
The authors developed a sustainable building structure system with a primary goal of extending the service life of the entire structure system and a secondary goal of permitting the reuse of structural members if the primary goal cannot be attained. In this paper, a mechanical model is established based on the mechanical properties of the beam-to-column connection tests revealed by the authors' past experimental studies. The mechanical model is compared with the results obtained from beam-to-column connection in detail. The model is further compared with the results from partial frame testing in which buckling-restrained braces are attached to beams and columns like knee braces. The findings obtained from the comparisons indicate that the mechanical model has satisfactory stiffness and strength, and accurately demonstrates the behavior of the beam-to-column connection. Thus, the effectiveness of the model has been proven. The authors believe that the mechanical model is applicable to analysis of the entire structure system.