Monitoring of the Bonnet Carré Spillway Bridge during extreme overload.
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields



Publication Date Range:


Document Data


Document Type:






Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page


Monitoring of the Bonnet Carré Spillway Bridge during extreme overload.

Filetype[PDF-1.34 MB]

  • English

  • Details:

    • Publication/ Report Number:
    • Resource Type:
    • Geographical Coverage:
    • Abstract:
      This report concerns the monitoring of a portion of the Bonnet Carré Spillway Bridge during an extreme overload. On Tuesday, November 5, 2002, Tulane University was requested to monitor strain at the bottom flange of two adjacent prestressed girders before, during, and after the passing of the overload. On Thursday, November 7, this request was modified to include monitoring of strain in the following regions of interest:

      a. Positive moment region on three adjacent girders

      b. Negative moment region over the pile cap at the center of the bridge width

      c. Positive and negative moment region on one pile cap

      d. Shear region on one pile cap

      e. Compression region on one square pile

      It was originally believed that the overload would cross the bridge at approximately 4:00 a.m. on Saturday morning, November 9. Access in the form of a "Reach-All" vehicle was provided on Friday, November 8, and strain gauges and wires were affixed to appropriate locations of the structure. Due to mechanical difficulties the overload did not pass until approximately 3:00 pm on Sunday, November 10. On Saturday, November 9, access was also provided to the structure, and instrumentation was placed. During the day of Friday, November 8, an additional request was made to monitor the strain on a reinforcing bar in the negative moment region of the concrete deck over a pile cap. Furthermore a request was made to monitor the displacements at midspan of the girders on Saturday, November 9. These strains and displacements were monitored during the passage of the overload. Acoustic emission was monitored on three girders at midspan during the passage of the overload as well. When the overload crossed the bridge on Sunday, November 10, many of the strain gauges were still functional but a few had been lost due to environmental exposure or other factors. Due to the very short notice prior to the monitoring, some compromises were made in the data collection. These included, but were not limited to, the use of a quick curing epoxy for the mounting of the strain gauges, the use of long runs of 18-gauge shielded three-conductor wire from the strain gauges to the data acquisition system, the elimination of weatherproofing in some instances, and the use of portable generators to power the data acquisition system. After the monitoring was performed, efforts were made to quantify and reduce the error that may have arisen from these necessary compromises. These efforts included additional laboratory testing described in this report.

    • Format:
    • Main Document Checksum:
    • File Type:

    Supporting Files

    • No Additional Files

    More +

    You May Also Like

    Checkout today's featured content at

    Version 3.24