Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Transient loads on buildings in microburst and tornado winds
AbstractThis paper presents both quasi-steady and transient wind load effects on a cubic building in a microburst and a tornado. Large eddy simulation (LES) was used to simulate the loading effects of a translating microburst with a 0.20-m-diameter jet at four different translating velocities on a 25mm cube. The results of the numerical simulation were compared with data from a laboratory microburst simulator. The numerical simulation predicted an increase in drag forces with increase in microburst translation speed. The transient loading effects on a 229mm cubic building from a translating tornado were also simulated in a laboratory for two different vortex core diameters and two translating speeds and the peak loads were studied. Results for the cubic building were compared with that of a tall building under the same loading conditions. Finally, peak loads and peak moments measured in this study were compared to the corresponding values specified in ASCE 7-05 [2006. Minimum Design Loads for Buildings and Other Structures, 2006. ASCE Standard, SEI/ASCE 7-05, American Society of Civil Engineers] and found to exceed them by a factor of 1.5 or more for buildings located in tornado alley of the United States subjected to tornadoes of F2 or higher intensity.
Transient loads on buildings in microburst and tornado winds
AbstractThis paper presents both quasi-steady and transient wind load effects on a cubic building in a microburst and a tornado. Large eddy simulation (LES) was used to simulate the loading effects of a translating microburst with a 0.20-m-diameter jet at four different translating velocities on a 25mm cube. The results of the numerical simulation were compared with data from a laboratory microburst simulator. The numerical simulation predicted an increase in drag forces with increase in microburst translation speed. The transient loading effects on a 229mm cubic building from a translating tornado were also simulated in a laboratory for two different vortex core diameters and two translating speeds and the peak loads were studied. Results for the cubic building were compared with that of a tall building under the same loading conditions. Finally, peak loads and peak moments measured in this study were compared to the corresponding values specified in ASCE 7-05 [2006. Minimum Design Loads for Buildings and Other Structures, 2006. ASCE Standard, SEI/ASCE 7-05, American Society of Civil Engineers] and found to exceed them by a factor of 1.5 or more for buildings located in tornado alley of the United States subjected to tornadoes of F2 or higher intensity.
Transient loads on buildings in microburst and tornado winds
Sengupta, Anindya (Autor:in) / Haan, Fred L. (Autor:in) / Sarkar, Partha P. (Autor:in) / Balaramudu, Vasanth (Autor:in)
Journal of Wind Engineering and Industrial Aerodynamics ; 96 ; 2173-2187
01.01.2008
15 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Transient loads on buildings in microburst and tornado winds
| Online Contents | 2008
Transient loads on buildings in microburst and tornado winds
| Online Contents | 2008
Laboratory Simulation of Tornado and Microburst to Assess Wind Loads on Buildings
| British Library Conference Proceedings | 2006
Large eddy simulation of microburst winds flowing around a building
| Elsevier | 1993
Large eddy simulation of microburst winds flowing around a building
| Online Contents | 1993