In this paper, the seismic performance of framed building with porous hysteretic damping system is examined by comparing the beam-column stiffness ratio. Analytical results show that in case of maximum displacement, acceleration, and shear force, the decrease in ρ=2.00 is larger than the decrease in ρ=0.10. But results appeared differently according to a number of stories that damper installed.

• 천영수(한국토지주택공사 토지주택연구원 수석연구원) | Chun, Young-Soo
• 허무원(삼영엠텍(주) 내면진기술연구소 선임연구원) | Hur, Moo-Won