Effect of thermal loads on substructures : New Trammel Creek Bridge on KY-100 in Allen County, Kentucky.

Details

• Creators:
  Zhu, Zhihui ; Davidson, Michael ; Sun, Charlie ; Harik, Issam
• Corporate Creators:
  University of Kentucky Transportation Center
• Corporate Contributors:
  Kentucky. Transportation Cabinet ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Bridge foundations
  • Bridge piers
  • Bridge substructures
  • Thermal stresses
  • Temperature
  • Earth pressure
  • Structural health monitoring
  • Instrumentation
  • Finite element method
• Publication/ Report Number:
  KTC-15-14/ SPR10-408-1F
• Resource Type:
  Tech Report
• Geographical Coverage:
  Kentucky
• Corporate Publisher:
  University of Kentucky Transportation Center
• Abstract:
  When infrastructure is subjected to temperature changes, structural members that are either partially or fully ; restrained against motion can develop internal stresses. The phenomenon of temperature-induced internal stress development ; in superstructure members has prompted the American Association of State Highway and Transportation Officials ; (AASHTO) to include provisions for determining superstructure temperature load effects. However, little consideration has ; been given to explicitly quantifying the effect that thermal stresses have on foundation systems such as intermediate bridge ; piers. The objective of this study is to instrument a multi-span integral abutment bridge with temperature and bridge ; response monitoring devices, and ultimately, to make a comparative analysis between measurements of temperature-induced ; soil pressures with pressures derived using the AASHTO design provisions. Accordingly, the New Trammel Creek Bridge ; (002B00054N) along KY-100 in Allen County, Kentucky has been fitted with temperature and response instrumentation. ; Data has being continuously collected from the bridge site since May 2011, and can be viewed at: ; http://www.ktc.uky.edu/kytc/RemoteBridgeMonitoringInKY/ky100Allen.html. Included in the research is a detailed ; analytical study of the New Trammel Creek Bridge, performed simultaneously with a field-monitoring program. Finite ; element (FE) modeling and analysis of temperature loadings on the bridge have pointed to AASHTO superstructure-temperature provisions as the preferred method. Also called Method B, the AASHTO provisions led to adequate sizing of ; bridge foundation members.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29183/dot_29183_DS1.pdf
• File Type:
  [PDF - 19.21 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:6c9a8972b099203d36ce300c71edb9ce158cd9ce4731317749a09b544eac4ec0