Frontiers of Structural and Civil Engineering
>> 2019,
Volume 13,
Issue 3
doi:
10.1007/s11709-018-0503-5
RESEARCH ARTICLE
Extrapolation reconstruction of wind pressure fields on the claddings of high-rise buildings
. School of Civil Engineering and Architecture, Nanchang University, Nanchang 330033, China.. Jiangxi Institute of Economic Administrators, Nanchang 330038, China
Accepted: 2018-09-03
Available online: 2018-09-03
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Abstract
Recent research about reconstruction methods mainly used the interpolation reconstruction of the fluctuating wind pressure field on the surface. However, to investigate wind pressure at the edge of the building, the work presented in this paper focuses on the extrapolation reconstruction of wind pressure fields. Here, we propose an improved proper orthogonal decomposition (POD) and Kriging method with a von Kármán correlation function to resolve this issue. The studies show that it works well for not only interpolation reconstruction but also extrapolation reconstruction. The proposed method does require determination of the Hurst exponent and other parameters analysed from the original data. Hence, the fluctuating wind fields have been characterized by the von Kármán correlation function, as an a priori function. Compared with the cubic spline method and different variogram, preliminary results suggest less time consumption and high efficiency in extrapolation reconstruction at the edge.
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