A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Wind Tunnel Investigation of the Deer Isle-Sedgwick Bridge. Phase 1
The Deer Isle-Sedgwick Bridge is a 45-year-old suspension bridge located on the New England Coast in the State of Maine. The Maine Department of Transportation (MEDOT) is in the process of rehabilitating this structure and has requested the Federal Highway Administration (FHWA) to evaluate the bridge's performance under existing wind and storm conditions. In response to this request, FHWA has conducted full scale measurements at the bridge site, analytical investigations, and scale model studies in the Aerodynamics Laboratory located at the Turner-Fairbank Highway Research Center (TFHRC). The report presents the results from the first phase of the wind tunnel model studies. A 1:25 scale section model was used to evaluate the bridge response. Tests were conducted under laminar (smooth) flow conditions for wind tunnel speeds ranging from 0 to 40 fps. Three basic modifications to the bridge cross section were designed and tested to evaluate their effectiveness toward enhancing bridge aerodynamic stability. Wind forces (lift, drag, and pitching moment) on the existing configuration and the most stable alternate were measured for vertical wind angles ranging from -10 deg to +10 deg.
Wind Tunnel Investigation of the Deer Isle-Sedgwick Bridge. Phase 1
The Deer Isle-Sedgwick Bridge is a 45-year-old suspension bridge located on the New England Coast in the State of Maine. The Maine Department of Transportation (MEDOT) is in the process of rehabilitating this structure and has requested the Federal Highway Administration (FHWA) to evaluate the bridge's performance under existing wind and storm conditions. In response to this request, FHWA has conducted full scale measurements at the bridge site, analytical investigations, and scale model studies in the Aerodynamics Laboratory located at the Turner-Fairbank Highway Research Center (TFHRC). The report presents the results from the first phase of the wind tunnel model studies. A 1:25 scale section model was used to evaluate the bridge response. Tests were conducted under laminar (smooth) flow conditions for wind tunnel speeds ranging from 0 to 40 fps. Three basic modifications to the bridge cross section were designed and tested to evaluate their effectiveness toward enhancing bridge aerodynamic stability. Wind forces (lift, drag, and pitching moment) on the existing configuration and the most stable alternate were measured for vertical wind angles ranging from -10 deg to +10 deg.
Wind Tunnel Investigation of the Deer Isle-Sedgwick Bridge. Phase 1
H. R. Bosch (author)
1987
233 pages
Report
No indication
English
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