Field Instrumentation and Measured Response of the I-295 Cable-Stayed Bridge: Interim Report on Construction Period Strains in Cable Stays
During the construction of the 1-295 cable-stayed bridge, a number of the stays on the main span- cantilever were instrumented with electrical resistance strain gages mounted directly on the wires of the seven-wire strands making up the stay cables. Measurements were taken beginning before tensioning and continuing until completion of the cantilever. Expected changes in the strains caused by lifting of segments and subsequent stay tensioning activities were observed. During the multistrand tensioning activities on the instrumented stays, significant variability in the strain behavior of the individual strands was observed, a fact that should be considered in the design of cable-stay systems and tensioning methods.
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- Record URL:
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Corporate Authors:
Virginia Transportation Research Council
530 Edgemont Road
Charlottesville, VA United States 22903Virginia Department of Transportation
1401 East Broad Street
Richmond, VA United States 23219Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Baber, Thomas T
- Barton, Furman W
- McKeel, W T
- Publication Date: 1991-1
Language
- English
Media Info
- Media Type: Web
- Edition: Interim Report
- Features: Figures; References; Tables;
- Pagination: 71p
Subject/Index Terms
- TRT Terms: Bridge construction; Cable stayed bridges; Cantilever bridges; Electrical resistivity; Field studies; Instrumentation; Posttensioning; Strain gages
- Uncontrolled Terms: Stay cables
- Subject Areas: Bridges and other structures; Construction; Highways; I24: Design of Bridges and Retaining Walls; I53: Construction of Bridges and Retaining Walls;
Filing Info
- Accession Number: 01342786
- Record Type: Publication
- Report/Paper Numbers: VTRC 91-IR1
- Files: NTL, TRIS, USDOT, STATEDOT
- Created Date: Jun 23 2011 9:07AM