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Engineering Sciences Data Unit 을 이용한 지표면조도 산정
김영순(Kim, Young-sun),주홍찬(Joo, Hong-Chan),공윤배(Kong, Yun-Bae),김종대(Kim, Jong-Dae) 대한건축학회 2021 대한건축학회 학술발표대회 논문집 Vol.41 No.1
The wind load is calculated by the design velocity pressure at the reference height H. Determination of the design velocity pressure is the first step of the design wind load. The factors that determine the design wind load are the basic wind speed, wind speed altitude distribution coefficient, topography coefficient, and the importance factor of the building. The basic wind speed is clearly presented in the KDS 41 10 15 : 2019. However, the determination of surface roughness is highly uncertain due to subjective judgment. For the objective Estimation of the terrain exposure category, which is a great influence on the design wind load, we propose a ESDU Data Item No.01008 which is quantitative calculation technique based on the boundary layer developed by ESDU(Engineering Sciences Data Unit). The terrain exposure category of the Metropolitan area was estimated by ESDU 01008 and compared with the KDS 41 10 15 : 2019