지진 시 발전소 내 운용설비의 지지조건에 따른 진동 특성 평가

Abstract

It was reported that the Gyeongju and Pohang earthquakes that occurred recently caused a great deal of damage to non-structural elements, such as, power generation facilities as well as structural elements, such as, buildings. In the case of electric cabinets, which are non-structural elements of typical power generation facilities, when damage occurs due to earthquakes, secondary damage may be caused. In general, using an electric cabinet is a self-supporting method of fixing the bottom of the cabinet and the concrete slab using an anchor. When a deformation occurs at the bolt connection point due to vibration of the body during an earthquake, the fixing force is weakened, which may cause structural and functional damage. This functional damage can further impair the indirect social facilities; hence, earthquake protection is of utmost importance. In this study, a vibration table test was performed to confirm whether the vibrations during earthquakes were reduced by using the number of cabinet connection bolts as a parameter to improving the fixing force.