Frame is one of the most commonly used structural systems for the resistance of applied loads. Many researchers have recently conducted their studies to investigate the effect of several parameters such as the connection flexibility, boundary condition of each support, beam-to-column stiffness ratio. These parameters play important roles on the characteristic behavior of frames. A simplified spring model is proposed to obtain the story drifts of frames with various beam-to-column connection stiffnesses in this research. A point bracing system with adequate spring stiffness is also suggested to establish the relationship between the applied load and the resisting translational spring stiffness within the limit state of story drift.

• 양재근(인하대학교 건축학부 조교수, 공학박사) | Yang, Jae-Guen
• 김호근( 인하대학교 건축공학과 석사과정) | 김호근
• 김기환( 인하대학교 건축공학과 석사과정) | 김기환