Derivation of equivalent gust effect factors for wind loading on low-rise buildings through Database-Assisted-Design approach

Seo, Dong-Woo; Caracoglia, Luca

doi:10.1016/j.engstruct.2009.07.020

Cited by 7 publications

(4 citation statements)

References 9 publications

(16 reference statements)

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“…Design information of the roof overhang of low‐rise buildings comes primarily from wind tunnel tests, full‐scale measurements, and database‐assisted design methodology. The database‐assisted design methodology has been incorporated in the ASCE 7‐16 Standard for structural design purposes, which has been used to evaluate the wind loads on low‐rise buildings in recent studies …”

Section: Introductionmentioning

confidence: 99%

Field monitoring and wind tunnel study of wind effects on roof overhang of a low‐rise building

Wang

2019

Struct Control Health Monit

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Roof overhang is one of the most easily damaged parts of low-rise buildings during windstorms. To investigate the wind-induced pressure distributions and forces on the roof overhang of a typical low-rise building, field monitoring during two typhoons and detailed wind tunnel test are conducted in this paper. Correlation analysis is performed to analyze the wind pressures on the upper and lower surfaces of the roof overhang. Moreover, cross-comparisons among the wind tunnel testing results, full-scale measurements, and design provisions are made for validation purposes. The comparative study illustrates that the model-scale experimental results of wind pressure coefficients, lift, and bending moment coefficients on the roof overhang are generally in reasonable agreement with the full-scale measurements, except for the peak negative pressure coefficients and lift coefficients for several wind directions. In addition, it is observed that the suctions on the roof overhang determined from the wind tunnel test and the full-scale measurements are lower than those stipulated in ASCE 7-16. The combined field measurement and model testing study aims to further understand the wind effects on roof overhang during windstorms and improve the wind-resistant design of low-rise buildings in tropic cyclone-prone regions.

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Section: Introductionmentioning

confidence: 99%

Field monitoring and wind tunnel study of wind effects on roof overhang of a low‐rise building

Wang

2019

Struct Control Health Monit

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“…[9] developed a model to help predict the wind behaviour of low-rise light and residential buildings and to provide insight into how internal pressures may vary over time and under different conditions. [10] analysed different methods for the assessment of wind loading, utilizing the Gust Effect Factors for low-rise buildings. [11] specifically examined the downwash effect of a typical RTS on the way that the wind can alter the direction and spread of a plume emanating from a building.…”

Section: Book Series: Engineering Research Transcriptsmentioning

confidence: 99%

CFD Investigation of Aerodynamic Effects on Multi-span Low-rise Structures with Curved Canopy Roofs of Different Apex Height

Mishra,

Verma,

Ranjan

et al. 2024

Computational Analysis of Buildings

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Several nations’ wind codes have established pressure coefficients for structures with the most commonly used roof designs. However, similar work is missing for low-rise structures with curved-canopy roofs and all sides open to the wind environment. Therefore, this work investigates wind impact on single-span and multi-span low-rise structures with curved canopy roofs and an open wind environment on all sides. Ansys CFX is used to establish the wind flow pattern, conduct the simulations, and compute wind pressure coefficients on the roof of six different structures represented as a 1:50 scale model and simulated for four wind directions ranging from 0° to 90° at 30° intervals. Due to the direct head-on impact on single-span structures, pressure contours revealed positive pressure on the external face on the windward side. The external face showed suction/negative pressure for variation in incidence angle. For multi-span structures, the external face experienced suction pressure at the windward side. Positive pressure was experienced at the junction at the external face, which changed with the incidence angle. The internal face and its junction encountered positive pressure on the windward side. Negative pressure was also detected on the external face of the roof in both single-span and multi-span structures.

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“…The reason for this is that codes of practice do not give experimental protocols [1,2] and that scientific literature focuses on specific cases. Error propagation due to the small scale of experimental models is known to affect results at the prototype scale [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Time Dependence of Wind-Induced Aeroelastic Response on a Scale Model of a High-Rise Building

Rizzo

2021

Applied Sciences

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Experimental wind tunnel test results are affected by acquisition times because extreme pressure peak statistics depend on the length of acquisition records. This is also true for dynamic tests on aeroelastic models where the structural response of the scale model is affected by aerodynamic damping and by random vortex shedding. This paper investigates the acquisition time dependence of linear transformation through singular value decomposition (SVD) and its correlation with floor accelerometric signals acquired during wind tunnel aeroelastic testing of a scale model high-rise building. Particular attention was given to the variability of eigenvectors, singular values and the correlation coefficient for two wind angles and thirteen different wind velocities. The cumulative distribution function of empirical magnitudes was fitted with numerical cumulative density function (CDF). Kolmogorov–Smirnov test results are also discussed.

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Derivation of equivalent gust effect factors for wind loading on low-rise buildings through Database-Assisted-Design approach

Cited by 7 publications

References 9 publications

Field monitoring and wind tunnel study of wind effects on roof overhang of a low‐rise building

Field monitoring and wind tunnel study of wind effects on roof overhang of a low‐rise building

CFD Investigation of Aerodynamic Effects on Multi-span Low-rise Structures with Curved Canopy Roofs of Different Apex Height

Investigation of the Time Dependence of Wind-Induced Aeroelastic Response on a Scale Model of a High-Rise Building

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