Anchor Bolt Behavior in ASR/DEF-Damaged Drilled Shafts.

Details

• Creators:
  Bae, Sungjin. ; Bayrak, Oguzhan ; Jirsa, James O. ; Klingner, Richard E.
• Corporate Creators:
  Texas. Dept. of Transportation ; University of Texas at Austin
• Subject/TRT Terms:
  • Anchor bolts
  • Poles (Supports)
  • High mast lighting
  • High Mast Illumination Poles
  • Drilled shafts
• Publication/ Report Number:
  Technical report IAC 88-5DDIA004
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Texas. Department of Transportation
• Abstract:
  The primary objective of this research is to evaluate the effect of Alkali-Silica Reaction (ASR) and Delayed Ettringite Formation (DEF) on the structural performance of High Mast Illumination Pole (HMIP) foundations and if needed, to recommend a possible retrofitting method to strengthen them and prevent further damage. ; To achieve this goal, six full-scale field tests were conducted in the Houston area. Two types of drilled shafts were examined: 16-anchor drilled shafts supporting 150-ft high HMIPs; and 20-anchor drilled shafts supporting 175-ft high HMIPs. One of the 20-anchor drilled shafts was repaired by wrapping with Carbon Fiber-Reinforced Polymer (CFRP) laminate. Observed performance under field tests was also evaluated in the context of the design wind loads of the AASHTO Specifications (2001) and ASCE 7-05 (2005). Failure modes and the related load-transfer mechanisms were investigated and some design recommendations were suggested for better design of drilled shafts.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16573/dot_16573_DS1.pdf
• File Type:
  [PDF - 7.85 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:d178dddba91b9e401cc2ede14949e67441a179fa7c341c060e49e0fa4f79d909dbd939a00c29584062557011045cbc469de9920b2c3a358332873f1d216427f2