WAKE STUDY OF STIFFENING TRUSS AND BOX GIRDER
A 1:64 seale model of the William Preston Lane, Jr., Memorial Bridge was studied in the wind tunnel to determine possible downstream effects on a parallel structure. The model was tested in smooth flow and in a grid-induced turbulent flow with the model held rigidly and also in a mounting allowing torsional oscillation. A 3.1 model in turbulent flow, as a downstream distance of about 10 bridge widths, the wake is random in nature with somewhat higher turbulence intensities. For the smooth flow, significant effects are still noticeable at a spacing of over 13 widths, the maximum distance tested. The same conclusions obtained for the box, although at greater spacings. For the oscillating model in turbulent flow, a small effect remains at maximum distance, while strong effects remain for smooth flow at the same location. Testing real problems in turbulent flow is recommended. /ASCE/
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Corporate Authors:
American Society of Civil Engineers
345 East 47th Street
New York, NY United States 10017-2398 -
Authors:
- REINHOLD, T A
- Tieleman, H W
- Maher, F J
- Publication Date: 1976-9
Media Info
- Features: Appendices; Figures; References; Tables;
- Pagination: p. 1643-57
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Serial:
- Journal of the Structural Division
- Volume: 102
- Issue Number: ST9
- Publisher: American Society of Civil Engineers
Subject/Index Terms
- TRT Terms: Box girders; Bridge design; Bridges; Flow; Structural design; Trusses; Turbulence
- Candidate Terms: Turbulent flow
- Uncontrolled Terms: Model tests; Stiffening
- Subject Areas: Bridges and other structures; Highways;
Filing Info
- Accession Number: 00141792
- Record Type: Publication
- Report/Paper Numbers: ASCE # 12372
- Files: TRIS
- Created Date: Dec 22 1976 12:00AM