Structures with Coulomb-friction damping system have strong nonlinearity that the dynamic behavior is highly affected by the relative magnitude between frictional force and excitation load. In this study, normalized response spectra of the structures with non-dimensional friction force are obtained through nonlinear time history analyses of the mass-normalized single degree of freedom systems using ground motion data designed by ATC-40 and Korean Building Code 2005(KBC 2005) on each slte. The variation of the control performance of Coulomb-frictional damping system is investigated in terms of the dynamic load and the structural natural period, of which effects were not considered in the previous studies. Finally, Design spectra of the structure with Coulomb-frictional damper considering the safety of structural design is proposed though linear curve fitting

• 민경원(단국대학교 건축대학 건축공학과 교수, 공학박사) | Min, Kyung-Won Corresponding author
• 이상현(단국대학교 건축대학 건축공학과 조교수, 공학박사) | Lee, Sang-Hyun
• 윤경조(단국대학교 대학원 건축공학과 석사과정) | Youn, Kyung-Jo