건물의 상호배치에 따른 풍하중 영향평가에 관한 연구 = Interference Effects of Arrangement of Neighboring Building on Wind Loads

국문 초록 (Abstract)

우리나라 풍하중 기준인 “건축물 하중기준 및 해설(2000)”은 노풍도를 고려해서 건물이 단독으로 서 있는 경우를 상정하여 풍동실험을 수행함으로써 얻어진 결과에 근거한다. 그러나 주변건물에 의해 둘러싸인 실제의 경우에서는 건물에 작용하는 풍하중은 건물이 단독으로 서 있을 경우와는 기류의 변동으로 인해 상당히 다르게 나타날 수 있다. 이와 같은 고층건물의 풍하중 상호간섭효과에 영향을 미칠 수 있는 요소 즉, 풍상측 지형, 건물의 기학적 형상, 풍속 및 풍향 과 건물의 상대배치 중에서 건물의 상대배치는 상호간섭효과에 가장 큰 영향을 줄 수 있다. 본 연구에서는 정사각형 평면형상을 갖고 있는 초고층 건축물이 똑 같은 크기의 주변 건물의 배치간격에 따라 초고층 건축물이 어떤 하중영향을 받는지를 조사하였다. 풍하중 상호간섭효과는 고주파 천평모형을 이용하여 풍동실험을 통해서 수행되었다. 풍하중 상호간섭효과는 초고층 건축물 주변에 다른 건축물이 있는 경우의 풍하중과 초고층 건축물 단독으로 있을 경우의 풍하중과의 비로 나타냈다.

다국어 초록 (Multilingual Abstract)

The evaluation of wind loads on buildings in Korea is carried out mainly by using Korean Standard Design Loads for Buildings, whose specifications are generally based on wind-tunnel tests performed on isolated structures considering wind exposure. However, it has been shown that wind loads on buildings in realistic environments surrounded by neighboring buildings may be considerably different from those measured on isolated buildings. Wind-induced interference effects depend mainly on the geometry and arrangement of these structures, their orientation and upstream terrain conditions. The most important factor among them is the arrangement of building structures. It is examined in this study that how wind loads on a high-rise building with square section are affected by the arrangement of neighboring building. The neighboring building is the same size as the measured building. Wind-induced interference effects on high-rise buildings were performed by wind-tunnel tests of force balance model. Interference factor was defined as ratio of wind force on a building with interfering buildings present to wind force on an isolated building.

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