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Dynamic response and reliability analysis of tall buildings subject to wind loading
This paper explores the wind stochastic field from a new viewpoint of stochastic Fourier spectrum (SFS). The basic random parameters of the wind stochastic field, the roughness length z0 and the mean wind velocity at 10 m height U10, as well as their probability density functions (PDF), are obtained. It provides opportunities to use probability density evolution method (PDEM), which had been proved to be of high accuracy and efficiency, in computing the dynamic response and reliability of tall buildings subject to the wind loading. Principals and corresponding numerical solving algorithm of the PDEM are first presented. Then, the adopted model of the wind stochastic field is described briefly. The simulation method of the fluctuating wind velocity based on the SFS is introduced. Finally, as an example of the application of the PDEM, a 20-storey frame subject to wind loading is investigated in detail. The responses, including the mean value and the standard deviation, and the reliabilities of the frame are evaluated by the PDEM. The results demonstrate that the PDEM is applicable and efficient in the dynamic response and reliability analysis of wind-excited tall building.
Dynamic response and reliability analysis of tall buildings subject to wind loading
This paper explores the wind stochastic field from a new viewpoint of stochastic Fourier spectrum (SFS). The basic random parameters of the wind stochastic field, the roughness length z0 and the mean wind velocity at 10 m height U10, as well as their probability density functions (PDF), are obtained. It provides opportunities to use probability density evolution method (PDEM), which had been proved to be of high accuracy and efficiency, in computing the dynamic response and reliability of tall buildings subject to the wind loading. Principals and corresponding numerical solving algorithm of the PDEM are first presented. Then, the adopted model of the wind stochastic field is described briefly. The simulation method of the fluctuating wind velocity based on the SFS is introduced. Finally, as an example of the application of the PDEM, a 20-storey frame subject to wind loading is investigated in detail. The responses, including the mean value and the standard deviation, and the reliabilities of the frame are evaluated by the PDEM. The results demonstrate that the PDEM is applicable and efficient in the dynamic response and reliability analysis of wind-excited tall building.
Dynamic response and reliability analysis of tall buildings subject to wind loading
Dynamische Untersuchung und Sicherheitsanalyse für Hochhäuser unter Windbelastung
Zhang, Lin-lin (author) / Li, Jie (author) / Peng, Yongbo (author)
2008
16 Seiten, 21 Quellen
Article (Journal)
English
Aerodynamik , Gebäude , Algorithmus , Rechnersimulation , dynamisches Verhalten , Fourier-Analyse , Zufallsprozess , Geschwindigkeit , Windgeschwindigkeit , Wahrscheinlichkeitsrechnung , Windbelastung , Wind (Meteorologie) , stochastisches Modell , Wahrscheinlichkeitsdichte , Modellsimulation , Mittelwert , Standardabweichung , Versuchsergebnis
Dynamic response and reliability analysis of tall buildings subject to wind loading
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