실시간 하이브리드 시스템을 이용한 실대형 강뼈대구조물의 3자유도 동적실험
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The purpose of this paper is to perform the multi-direction test of steel frame structure. This study was conducted with 3 dynamic actuators and the optimized real-time hybrid system under control with new hybrid simulation program (FEAPH). The entire structure is one-bay, two-story steel frame structure and one of the steel frames as a hybrid specimen was selected at the first floor. Concrete slab as a nodal loading is assigned to the nodes at each floor. Elcentro earthquake wave as input loading was used. The linear and nonlinear dynamic behavior of steel frame structure was measured and compared with numerical results. As the results, the test running time was about 10% of actual recorded earthquake time and the experiment results agreed well with numerical one. Therefore, this finite element program for real-time hybrid test will be effectively used to evaluate the dynamic performance with the full-scale structure.