Proper orthogonal decomposition of roof pressure

Bienkiewicz, B.; Ham, Hee Jung; Sun, Yue

doi:10.1016/0167-6105(93)90074-x

Cited by 43 publications

(22 citation statements)

References 5 publications

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“…Recently, Katsumura et al (2007) have developed a universal static wind load which aims at reproducing simultaneously the absolute maximum responses in all structural members. The universal ESWL is computed as a combination of eigenmodes calculated by covariance proper transformation (CPT) (Best and Holmes, 1983;Bienkiewicz et al, 1995;Solari et al, 2007) of fluctuating wind pressures. The advantage of that method is to have a unique loading, rather than several ESWLs for some chosen responses.…”

Section: Introductionmentioning

confidence: 99%

Principal static wind loads

Blaise

Denoël

2013

Journal of Wind Engineering and Industrial Aerodynamics

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a b s t r a c tIn current wind design practice, static wind loads are usually defined to obtain, by simple static analyses, the extreme values of any structural response that would be formally obtained with a strict dynamic buffeting analysis. The minimum and maximum values that may reach any response define the envelope. Equivalent static wind loads (ESWLs) allow to recover extreme responses in the envelope. As a first objective, this paper formalizes a general method to determine ESWL, in a nodal basis, by extending the concept of load-response correlation, which is only valid in the background range. The general method, the displacement-response correlation (DRC) method, covers the background and resonant contributions of the considered response. As a second objective, the paper addresses the problem of building a set of static wind loads that adequately reconstructs the envelopes of responses. The concept of principal static wind loads (PSWL) is introduced to form a reduced basis of representative loads well-suited for envelope reconstruction. Its optimality is demonstrated both analytically and with a detailed illustrative example.

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Section: Introductionmentioning

confidence: 99%

Principal static wind loads

Blaise

Denoël

2013

Journal of Wind Engineering and Industrial Aerodynamics

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“…This section brie#y explains POD analysis based on Armitt (1968) and Bienkiewicz & Ham (1993) using a random #uctuating wind pressure "eld. The physical meaning is emphasized, although the mathematical expressions used may not precisely express some parts of the model.…”

Section: Pod Analysismentioning

confidence: 99%

“…Bienkiewicz & Ham (1993), Davenport (1995) and Santi & HeH mon (1998), the mean value components were included in the calculation of the spatial correlation matrix. The authors' group had also included the mean value components in the early stage of its utilization of the POD technique, e.g.…”

Section: Comparison Of the Eigenvectors Of A Pressure Eld With/withomentioning

confidence: 99%

Proper Orthogonal Decomposition of Random Wind Pressure Field

Tamura

Suganuma

Kikuchi

et al. 1999

Journal of Fluids and Structures

158

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“…The approach was applied to discuss the fluctuating wind pressure fields on low-rise buildings by HOLMES et al [9−10]. BIENKIEWICZ et al [11] also carried out a detailed analysis of the pressure fluctuations on a flat-roof building model by this method. However, the usage of the approach to analyze the pressure fluctuations on long-span roof structures has received little attention in the past.…”

Section: Introductionmentioning

confidence: 99%

Wind tunnel testing of wind pressures on a large gymnasium roof

Jiu-rong

Liang

2011

J. Cent. South Univ. Technol.

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A wind tunnel test was conducted for a large steel gymnasium structure. Simultaneous pressure measurements were made on its entire ellipsoidal roof in a simulated suburban boundary layer flow field. Special attention is paid to the characteristics of fluctuating wind pressures in different zones on the roof. Some selected results are presented: 1) correlations between fluctuating wind pressures on both roof surfaces, 2) eigenvalues and eigenvectors of covariance matrices of the fluctuating wind pressures, 3) probability distributions of the fluctuating wind pressures, and 4) statistical characteristics of peak factor. Furthermore, the applicability of the quasi-steady approach is discussed in detail. Based on the results, an empirical formula for estimating the minimum pressure coefficients, using a peak factor approach, is presented. Comparison of the minimum pressure coefficients determined by the proposed formula and those obtained from the wind tunnel tests is made to examine the applicability and accuracy of the proposed formula.

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Proper orthogonal decomposition of roof pressure

Cited by 43 publications

References 5 publications

Principal static wind loads

Principal static wind loads

Proper Orthogonal Decomposition of Random Wind Pressure Field

Wind tunnel testing of wind pressures on a large gymnasium roof

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