Sungkyunkwan University · Engineering
김진후 교수의 연구실은 구조물의 내진성능 향상과 진동 제어를 핵심으로 하며, 특히 고층 구조물의 진동 제어 장치 설계, 비선형 동적 거동 분석, 그리고 구조물의 점진적 붕괴 방지를 위한 고도화된 해석 기법을 연구하고 있습니다. 주요 연구 주제로는 비탄성 댐퍼, 점탄성 댐퍼, 브레이싱 시스템, 그리고 진동 제어를 위한 최적 설계 기법이 포함됩니다. 특히 성능기반 내진설계 및 기존 구조물의 내진보강 기술에 초점을 맞추고 있어 실용적이고 안정적인 구조 설계 기법 개발에 기여하고 있습니다.
Figures are computed from collected data and may differ slightly.
Abstract This study investigated the effect of catenary action on the progressive collapse potential of steel moment framed structures. Non‐linear static and dynamic analyses of three‐ and six‐story model structures with and without bracing were carried out following the alternate path method recommended by the General Services Administration 2003. According to the non‐linear static push‐down analysis results, the contribution of catenary action and the progressive collapse potential of structur
SUMMARY In this study, the seismic performance of typical diagrid structures was investigated. To this end, 36‐storey diagrid structures with various slopes of external braces were designed and their seismic responses were evaluated using nonlinear static and dynamic analyses. A tubular structure and a diagrid structure with buckling‐restrained braces were also designed with the same design loads, and their seismic performances were compared with those of the diagrid structures. According to the
Abstract This paper presents a simultaneous optimization procedure for both viscoelastic dampers (VEDs) and supporting braces installed in a structure. The effect of supporting braces on the control efficiency of VEDs is also investigated. To apply a general gradient‐based optimization algorithm, closed‐form expressions for the gradients of objective function and constraints are derived. Also, the constraint on the dynamic behavior of a structure is embedded in the gradient computation procedure
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