A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Long-Term Monitoring of the HPC Carenton Canal Bridge
The report contains long-term monitoring data collection and analysis of the first fully high performance concrete (HPC) bridge in Louisiana, the Charenton Canal Bridge. The design of this bridge started in 1997, and it was built and opened to traffic in 1999. High-strength concrete was used in the precast prestressed, concrete piles and girders. High performance cast-in-place concrete was used in the abutment, wing walls, pile caps, approach slabs, barriers slabs, and barrier rails. After the bridge was constructed, this study was initiated. The objective was to continue the long-term data collection and analysis for the instrumented bridge. The long-term monitoring consisted of collecting data from embedded strain gauges in the deck and four girders of Span 3 of the five-span structure. Data collected were for (1) deck strains at the mid span of Span 3; (2) prestress losses at the mid span of Girders 3A, 3B, 3C, and 3D; and (3) camber and deflection of Girders 3A, 3B, 3C, and 3D. It was observed that (1) the maximum absolute strain in the deck was 77 millionths, (2) the maximum prestress loss in the girders was slightly less than 50,000 psi with time-dependent losses being at about 2 percent of the total losses, and (3) measured camber and deflection of the instrumented girders was in the range of 1.5 to 1.8 in. In conclusion, values reported for strains in the deck, prestress losses in the girders and camber/deflection of the instrumented girders seem to fit very well within acceptable limits.
Long-Term Monitoring of the HPC Carenton Canal Bridge
The report contains long-term monitoring data collection and analysis of the first fully high performance concrete (HPC) bridge in Louisiana, the Charenton Canal Bridge. The design of this bridge started in 1997, and it was built and opened to traffic in 1999. High-strength concrete was used in the precast prestressed, concrete piles and girders. High performance cast-in-place concrete was used in the abutment, wing walls, pile caps, approach slabs, barriers slabs, and barrier rails. After the bridge was constructed, this study was initiated. The objective was to continue the long-term data collection and analysis for the instrumented bridge. The long-term monitoring consisted of collecting data from embedded strain gauges in the deck and four girders of Span 3 of the five-span structure. Data collected were for (1) deck strains at the mid span of Span 3; (2) prestress losses at the mid span of Girders 3A, 3B, 3C, and 3D; and (3) camber and deflection of Girders 3A, 3B, 3C, and 3D. It was observed that (1) the maximum absolute strain in the deck was 77 millionths, (2) the maximum prestress loss in the girders was slightly less than 50,000 psi with time-dependent losses being at about 2 percent of the total losses, and (3) measured camber and deflection of the instrumented girders was in the range of 1.5 to 1.8 in. In conclusion, values reported for strains in the deck, prestress losses in the girders and camber/deflection of the instrumented girders seem to fit very well within acceptable limits.
Long-Term Monitoring of the HPC Carenton Canal Bridge
W. Alaywan (author)
2011
51 pages
Report
No indication
English
Hillsboro Canal Bridge Monitoring
| NTIS | 2011
| Taylor & Francis Verlag | 2001
Hillsboro Canal Bridge Monitoring, Summary
| NTIS | 2011
Long-Term Monitoring of Bridge Deformation
| Springer Verlag | 1990