풍하중을 받는 도로표지판의 안전성 검토
Investigation on Stability of the Road Sign Structures under Wind Loadings
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다운로드
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참고문헌
키워드
초록
Due to recent severe damages of the road sign structures caused by unexpected Typhoon, gale affected by abnormal weather phenomenon, it is necessary to revise the wind resistant design criteria and to improve the aerodynamic stability for the road sign structures. In this study, wind loads estimated by wind tunnel test of the road sign structures are compared with those evaluated by the wind resistant design criteria. The High Frequency Force Balance Test has been conducted on five types of the road sign model(which have three different sign plate sizes and two different shapes) in turbulent boundary layer flows. The wind loads on the road sign structure have been estimated by using the force coefficient and the moment coefficient from wind tunnel test. From the results of this study, it is confident to revise existing the wind resistant design criteria on the road sign structure for the improvement of stability for wind load.
Abstract
Due to recent severe damages of the road sign structures caused by unexpected Typhoon, gale affected by abnormal weather phenomenon, it is necessary to revise the wind resistant design criteria and to improve the aerodynamic stability for the road sign structures. In this study, wind loads estimated by wind tunnel test of the road sign structures are compared with those evaluated by the wind resistant design criteria. The High Frequency Force Balance Test has been conducted on five types of the road sign model(which have three different sign plate sizes and two different shapes) in turbulent boundary layer flows. The wind loads on the road sign structure have been estimated by using the force coefficient and the moment coefficient from wind tunnel test. From the results of this study, it is confident to revise existing the wind resistant design criteria on the road sign structure for the improvement of stability for wind load.
참고문헌 (8)
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- 하영철, "금오공과대학교 건축용 경계층풍동실험실의 소개", 대한건축학회지, 43(6), pp.71~75 (1999)
- Davenport, A.G, "The response of slender line-like structures to a gusty wind", Proc. I.C.E, 23, pp.449~472 (1962)
- Vickery, B.J., "On the assessment of wind effects on elastic structures", C.E.Trans. Inst. Aust, pp.183~192 (1966)
- 김근덕, "建築構造力學", pp.214~219 (1976), 기문당
- 한국강구조학회, "KBC 2005 강구조설계" (2006), 구미서관
- 손용춘, "내민식 도로표지판의 구조해석 및 풍동실험의 비교분석", 한국풍공학회지, 11(2), pp.179~186 (2007), 한국풍공학회