Connecticut permanent long-term bridge monitoring network, volume 2 : monitoring of curved post-tensioned concrete box-girder bridge : I-384 WB over I-84 in East Hartford (bridge #5686).

Details

• Creators:
  Scianna, Adam ; Prusaczyk, Stephen ; Jiang, Zhaoshuo ; Christenson, Richard E. ; DeWolf, John T. ; Jeong-Ho Kim
• Corporate Creators:
  Connecticut Transportation Institute
• Corporate Contributors:
  United States. Federal Highway Administration ; Connecticut. Dept. of Transportation
• Subject/TRT Terms:
  • Box girder bridges
  • Prestressed concrete bridges
  • Structural health monitoring
  • Remote sensing
  • Posttensioning
  • Field studies
  • Cracking
  • Temperature
• Publication/ Report Number:
  CT-2256-3-13-4
• Resource Type:
  Tech Report
• Geographical Coverage:
  Connecticut
• Corporate Publisher:
  Connecticut Transportation Institute
• Abstract:
  This report describes the instrumentation and data acquisition for a three-span continuous, curved post-tensioned box-girder ; bridge in Connecticut. The computer-based remote monitoring system was developed to collect information on the deformations, ; accelerations and temperature distributions to evaluate the long-term behavior and performance of the bridge. The monitoring ; system was installed in 1999, as the first system in a long-term research project to evaluate a variety of bridges in Connecticut. ; The data collected over multi-year periods from normal vehicular traffic has been used to learn about long-term performance of ; this bridge, resulting in a series of papers. The initial study developed an approach using histograms to better define natural ; frequencies from the extensive field data. The second study explored the influence of temperature distributions on the overall ; behavior of the bridge, including evaluation of the cause of cracking in both the box girders and the interior column supports. The ; third study looked at the influence of temperature variations on the baseline data, needed to remove the effect of temperature ; variations from data generated for long-term structural health monitoring. The final study has used the information previously ; developed for both this bridge and others to establish a baseline for long-term structural health monitoring and performance ; evaluation to determine if changes in the structural integrity are developing over time. The final study described in this report ; identifies and quantifies different data qualification measures needed for the structural health monitoring of this bridge.
  More +
• Format:
  PDF
• Funding:
  SPR-2256
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28387/dot_28387_DS1.pdf
• File Type:
  [PDF - 785.49 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:e434cbee8611d28b2b54a9aa0d0f080c95c5974dac82b81fa95dba50d2314a98