대공간 교육시설에 사용되는 합성보 및 콘크리트 슬래브의 진동평가에 대한 연구

A Study for Vibration Characteristics of RC Slab with Hybrid Beams in Large Span Educational Facilities

In this study, vibration characteristics of reinforced concrete slab in large span educational facilities were evaluated. A 21.75m X 14.4m full scale reinforced concrete slab specimen was constructed with pre-flex hybrid beams. Vibrations were generated by three different methods such as free falling method of a 6kg sand bag, a 70kg person walking method and impact method by impulse hammer. Vibrations were generated more than 3 times at single location. Vibration characteristic data were collected by SA390 signal analyzer machine at 5 different locations.