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http://dx.doi.org/10.11108/kagis.2015.18.3.001

Estimating Method of Surface Roughness Using Geographic Information  

CHOI, Se-Hyu (Department of Civil Engineering, Kyungpook National University)
SEO, Eun-Su (Department of Spatial Information, Kyungpook National University)
Publication Information
Journal of the Korean Association of Geographic Information Studies / v.18, no.3, 2015 , pp. 1-10 More about this Journal
Abstract
Rapid urban expansion and densification of the various industrial facilities affect the changes of topography and building in urban areas. Even if buildings proceed with high rise, they get mixed with low-rise buildings such as houses and industrial parks that have existed in the area. This may confuse the designer in estimating a surface roughness, an important factor in calculating the design wind velocity of building. This study analyzed the surface roughness by using a geographic information. Referring to the criteria of each country's building code, this study proposed a method to distinguish the surface roughness depending on the height of the surrounding buildings where the design building is located and calculated the surface roughness using 1:5000 topographic map and GIS. It is expected to solve problems that an existing designer calculates the surface roughness in a subjective manner and to help to design more rational buildings resistant to wind.
Keywords
Design Wind Speed; Velocity Pressure Exposure Coefficient; Surface Roughness; GIS;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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