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김장윤,황재승,홍성목 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)
Modal mass is essential to analyze structural response under disturbance and to design the vibration control devices used to enhance the serviceability of structure. Modal mass differs from that of analytic mathematical model due to the error generated from analytical assumption and construction. Therefore, the objective of this study is to proposed to calculate the modal mass of structure based on the system identification. And the proposed method is applied to two examples, the single DOF system and the slab of apartment.
황재승,이상현,송진규,홍성목 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)
This paper presents a new vibration control device by which the mass and damping of a structure is increased equivalently. The vibration control system, named toggle-rotational inertia-viscous damper, can be utilized effectively in applications of small structural drift. Numerical analysis shows that because the relative drift of a structure can be effectively amplified by the toggle system, the device has a great performance in the vibration control without the increase of the damper capacity and size. It is also observed that vibration control effects is caused by the increase of equivalent mass and damping due to the rotational inertia and damping of the device.