The vibration control device such as the damper can be used to reinforce the seismic performance of structures. The damper is activated by the deformation of structures during earthquake; however, the deformation of structures is extremely small, causing difficulty in using the damper. Therefore, there is a need for a method capable of amplifying small deformities and transmitting them to the damper. The purpose of this paper is to develop and evaluate a displacement amplification seismic system using cable-pulley. The appropriate cable was selected through a cable tensile performance test and the results of the frame experiment were compared with theoretical displacement amplification ratio values. As a result, it may be said that the proposed system using cable-pulley is useful for displacement amplification.

A B S T R A C T
1. 서 론
2. 케이블-도르래 조합형 감쇠시스템의 원리
3. 케이블 성능 실험
4. 케이블-도르래 조합형 감쇠시스템 프레임 실험
    4.1 실험계획
    4.2 실험 결과 및 분석
5. 결 론
REFERENCES

• 오진탁(한국시설안전공단) | Oh Jintak (Korea Infrastructure Safety Corporation)
• 정인용((주)테크스퀘어 내진설계본부장) | Jung In Yong (Earthquake Resistant Design Dept., TechSquare Co., Ltd)
• 류재호((주)테크스퀘어 기술연구소장) | Ryu Jaeho (Head of Technical Research Center, TechSquare Co., Ltd) Corresponding author