iFLASH 시스템의 진동특성 연구

With the recent trend to construct high-rise and large buildings, the steel structure system is widely used, but there are not enough studies aiming to determine the vibration characteristics by applying the iFLASH system on the buildings. Therefore, in this study, we performed a vibration measurement of the natural frequency and damping ratio in accordance with each stage of construction, regarding the floor applying the new system to address the issues related to the out-of-plane deformation of slabs. Currently, the research of iFLASH system is in the academic stage, so we decided to conduct this study. The result findings suggest that the damping ratio after the cladding completion has a greater effect on the reduction of the damping ratio, than the stage after the frame completion.