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Explanation
에너지흡수 성능이 우수한 저항복점 강재를 심재로 사용하여 강재의 탄/소성에 의한 지진에너지 소산과, 심재가 압축시에 좌굴하는 것을 구속하기 위해 ㄷ형 채널강재로 보강한 강재형 제진장치
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STU
Shock Transmission Unit (STU_) is a device that has less resistance to long-term movements including temperature changes, creep, and drying shrinkages, and high resistance to short-term movements like breaking forces or an earthquake. The STU has a simple structure of velocity-dependent silicone putty filled inside a cylinder, so that the STU can lock the structure against velocity loads like earthquakes, etc., dispersing horizontal load along the structure.
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Shear key
Shear key has a function as transfering the load of the upper structure of the bridge to the lower structure, sharing the horizontal force that is insufficient in the existing bridge bearing.
By adjusting the space between the upper and lower wedges, the spacg can be adjusted to optimize the onsite situation (Patent No. 102568738), making it possible to set the spacing to be the same as the existing bridge bearing.