Downslope gusty wind loading of vehicles on bridges

Kozmar, Hrvoje and Butler, Kyle and Kareem, Ahsan (2015) Downslope gusty wind loading of vehicles on bridges. = Downslope gusty wind loading of vehicles on bridges. Journal of bridge engineering, 20 (11). 04015008-1. ISSN 1084-0702. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q2 (2015). Točan broj autora: 3.

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Downslope crosswind bora gusts impacting vehicles represent a significant traffic safety issue, and vehicles on bridges are particularly vulnerable to such crosswinds. Wind tunnel experiments were carried out to investigate the effects of the vertical wind incidence angle and vehicle position on the resulting transient aerodynamic loads. When considering accident risk for the vehicle/infrastructure scenario investigated in this study, the higher risk for vehicles exists at lower vertical wind incidence angles up to 30° and closer to the upwind edge of the bridge deck with respect to steady aerodynamic loads. Shed vortices and wind gusting determined the unsteady aerodynamic loading of a vehicle on the bridge. Effects of shed vortices decreased at larger vertical wind incidence angles, with the wind gusts driving the unsteady aerodynamic loads. Difficulties associated with vehicle maneuvering and stability in the upwind traffic lane in terms of unsteady aerodynamic loading are expected to occur at the wind gusting frequency. Dynamic loading of vehicles in the downwind traffic lanes was due to shed vortices as a consequence of the bridge architecture and aerodynamic form of the vehicle.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): Crosswind loading of vehicles, bridge, gusty bora wind, wind incidence angle, vehicle position on the bridge, wind tunnel testing
Subjects: TECHNICAL SCIENCE > Traffic and transportation
Divisions: 1400 Department of fluid mechanics > 1420 Chair of environment and construction aerodynamics
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Quartiles: Q2 (2015)
Date Deposited: 13 Apr 2016 11:30
Last Modified: 23 Aug 2017 07:58

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