Development of Integral/Semi-Integral Abutments for TxDOT Bridges [Project Summary Project]

Details

• Creators:
  Zornberg, Jorge G. ; Mofarraj, Behdad ; Helwig, Todd ; Walter, Jakob
• Corporate Creators:
  University of Texas at Austin. Center for Transportation Research
• Corporate Contributors:
  Texas Department of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Bridges
  • Soil structure interaction
  • Instrumentation
  • Monitoring
  • Jointless bridges
  • Earth pressure
  • Pile foundations
  • Pilot studies
  • Data collection
  • Bridge decks
  More +
• Publication/ Report Number:
  0-6936
• Resource Type:
  Brief
• Geographical Coverage:
  Texas;United States
• Edition:
  Project Summary Report
• Corporate Publisher:
  University of Texas at Austin. Center for Transportation Research
• Abstract:
  This study includes an initial comprehensive evaluation of the state-of-the-practice in the US regarding the adoption of integral and semi-integral bridges. It also involved a large-scale experimental study focusing on the effect of cyclic movements on the potential buildup of lateral earth pressures acting on the backwalls of a semi-integral bridge. In addition, a numerical evaluation was conducted to understand the variables governing the performance of these types of bridge structures. However, the most relevant aspect of this study involved the design of a monitoring system, its installation, and its subsequent operation for two pilot semi-integral bridges in Texas. These comprehensive field monitoring projects allowed evaluation of the effect of daily and seasonal temperature changes on the displacement of various bridge components, of the changes in abutment earth pressure, of unexpected outcomes regarding foundation interaction, on the buildup of lateral earth pressures against the bridge backwalls (ratcheting), and on the evolution of backfill settlements.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/79599/dot_79599_DS1.pdf
• File Type:
  [PDF - 315.50 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:5918259e9b47d8bc09843506daa131a0d0e1790b7d50464bb12a998f91f06532d7e6edb0bf6a1c1cae66d091426b0c2efeff40e35da06982d946f049a347a51c