Seismically Resilient Bridge Bents with Stretch Length Anchors as Energy Dissipators

Details

• Creators:
  Neupane, Suman ; Pantelides, Chris P.
• Corporate Creators:
  University of Utah. Department of Civil and Environmental Engineering
• Corporate Contributors:
  United States. Federal Highway Administration. Office of Bridges and Structures
• Subject/TRT Terms:
  • Bents
  • Bridge members
  • Reinforcing bars
  • Analysis
  • Earthquake resistant design
  • Posttensioning
• Publication/ Report Number:
  25/01
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final Report
• Corporate Publisher:
  University of Utah. Department of City and Metropolitan Planning
• Abstract:
  Accelerated bridge construction (ABC) using precast concrete bents has substantial potential to improve construction time and seismic performance in earthquake-prone regions. This study investigates the seismic performance of hybrid self-centering bridge bents that employ unbonded post-tensioning (PT) bars for self-centering and replaceable stretch length anchors (SLAs) as external energy-dissipation devices. Experimental cyclic loading tests were performed on a 42% scale, two-column bridge bent to assess its self-centering capability and hysteretic energy dissipation. The study included four test configurations: two with combined PT bars and SLAs and two with PT bars only, the variables included shear key details at the footings and cap beam.
• Format:
  PDF
• Funding:
  693JJ321C000033
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/85244/dot_85244_DS1.pdf
• File Type:
  [PDF - 24.21 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:538083b681bb9af1779edc75c522e2f7d5a1c706eb8bf5f9d62156cf26e0f83b86c60e3deeb6e1983ddede5f5c3507936fa4d02afa4d5133e0238a888c19073a