편지붕형 지붕면에 작용하는 풍압계수 특성분석 = Analysis of the Characteristics of Wind Pressure Coefficient Working on Monosloped Roof Surface

다국어 초록 (Multilingual Abstract)

Damage on low‐rise buildings caused by typhoons and storms is increasing every year. Thus, this study examined the distribution of wind pressure coefficient at each position according to the height of monosloped roof, and measured wind pressure coefficient according to tributary area and compared it with the current wind load standard. We analyzed six areas in order to analyze characteristics at each position of a half‐span roof, and found that the wind pressure coefficient was around 25% higher at the high corner (HC) than at the low corner (LC). The distribution pattern of peak pressure coefficient at each position was the same as the AIK load standard, but in the results of our experiment, wind pressure was around 40% lower than the load standard at HC and around 37% higher than the load standard at LC.

국문 초록 (Abstract)

요 약
매년 발생하는 태풍이나 강풍에 의해 저층건물의 피해가 증가하고 있는 실정이다. 본 논문에서는 편지붕에 대한 높이변화에 따른 위치별 풍압계수 분포와 하중부담면적 변화에 따른 풍압계수의 평가를 통하여 현재 풍하중기준과 비교해보고자 한다. 편지붕의 위치별 특징을 알아보기 위해 6개 영역으로 나누어서 분석을 하였으며 지붕에서 각도가 높은(high) 모서리(HC)가 낮은 (low) 모서리(LC)보다 25%정도 크게 나타나고 있었다. AIK 하중기준과 위치별 피크 외압계수 분포가 동일한 양상으로 나타나고 있지만 실험결과 HC영역의 경우 하중기준보다 40%정도 작은 값을, LC영역의 경우 하중기준보다 37%정도 큰 값을 나타내고 있었다.

참고문헌 (Reference)

1 Holmes, J.D., "Wind Loading of Structures" Spon Press 2001

2 Surry,D., "The Wind Loading of Low Buildings with Mono-Sloped Roofs" University of Western Ontario 1985

3 Jensen,M., "Model-Scale Tests in Turbulent Wind, PartII" The Danish Technical Press 1965

4 Tieleman,H.W., "Full/Model-scale comparison of surface pressures on the Texas Tech Experimental Building" 61 : 1-23, 1996

5 Cui, B., "External Pressure Coefficients on Saw-tooth and Mono-sloped Roofs, Structures"

6 Stathopoulos,T., "Code Provisions for Wind Pressure on Low Buildings with Mono-Sloped Roofs"