등방성 이력형 강재댐퍼를 이용한 RC 라멘조 아파트건물의 지진응답 개선

천영수, 방종대
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Abstract

수동형 제진장치를 이용하는 제진구조는 수년간 개발이 지속되고 있으며, 1990년대 중반이후로 여러 나라들에서 실무적인 적용이 빠르게 증가되고 있다. 국내의 경우 이러한 제진장치 중 강재이력형 댐퍼가 비교적 저렴한 비용과 설치와 관리가 용이하다는 이유로 건물의 내진설계를 위하여 보편적으로 많이 적용되고 있다. 이 논문에서는 건물의 지진응답을 개선하기 위하여 적용된 소위 카고메댐퍼로 불리우는 등방성 강재이력형 댐퍼(Isotropic Hysteretic Metallic Damper, IHMD)의 유효성에 대한 해석적인 사례연구를 제시하고 있다. 연구대상 건물은 18층 규모의 철근콘크리트 라멘조 아파트건물로 해석결과를 통하여 IHMD의 실효성을 실증적으로 보여주고 있다. 해석결과는 IHMD가 건물의 지진응답을 줄일 수 있는 매우 효과적인 방법임을 검증하고 있다. 【Passive energy dissipation systems for seismic applications have been under development for a number of years with a rapid increase in implementations starting in the mid-1990s in many countries. A metallic hysteretic damper has most commonly been used for seismic protection of structures in domestic area because they present high energy-dissipation potential at relatively low cost and easy to install and maintain. This paper presents an analytical case study of the effectiveness of isotropic hysteretic metallic damper(IHMD) called Kagome as a passive dissipative device in reducing structural response during seismic excitation. An eighteen-story RC framed apartment building is studied with and without IHMD. Results demonstrate the feasibility of these techniques for seismic mitigation. The inclusion of supplemental passive energy dissipation devices in the form of IHMD proved to be a very effective method for significantly reducing the seismic response of the building investigated.】
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利用等防履历型钢材大坝改善RC ramenzo公寓建筑的地震响应
使用被动除尘装置的除尘结构持续了数年的开发,自20世纪90年代中期以来,在许多国家的实际应用都在迅速增加。在国内,这种除尘装置中,钢材履历型堤坝以费用较低,设置和管理容易为由,在建筑物的抗震设计上普遍适用。该论文提出了为改善建筑物的地震应答而适用的被称为“卡格米大坝”的等向性钢材经历型大坝(Isotropic Hysteretic Metallic Damper, IHMD)的有效性的解释性事例研究。研究对象建筑物是18层规模的钢筋混凝土水泥公寓建筑物,通过分析结果,实证地体现了IHMD的实效性。分析结果验证IHMD是减少建筑物地震应答的非常有效的方法。Passive energy dissipation systems for seismic applications have been under development for a number of years with a rapid increase in implementations starting in the mid-1990s in many countries。A metallic hysteretic damper has most commonly been used for seismic protection of structures in domestic area because they present high energy-dissipation potential at relatively low cost and easy toinstall and maintain。This paper presents an analytical case study of the effectiveness of isotropic hysteretic metallic damper(IHMD) called Kagome as a passive dissipative device in reducing structural response duringseismic excitation。An eighteen-story RC framed apartment building is studied with and without IHMD。Results demonstrate the feasibility of these techniques for seismic mitigation。The inclusion of supplemental passive energy dissipation devices in The form of IHMD proved to be a very effective method for significantly reducing The seismic response of The building investigated
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