Precast Bent System for High Seismic Regions: Laboratory Tests of Column-to-Footing Socket Connections

Details

• Creators:
  Haraldsson, Olafur ; Janes, Todd M. ; Eberhard, Marc O. ; Stanton, John F.
• Corporate Creators:
  United States. Federal Highway Administration
• Corporate Contributors:
  BergerABAM, Inc. ; University of Washington
• Subject/TRT Terms:
  • Bridge design
  • Earthquake resistant design
  • Precast concrete
  • Bridge foundations
• Publication/ Report Number:
  FHWA-HIF-13-039
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Federal Highway Administration
• Abstract:
  This report provides detailed information from the laboratory investigation of three precast column-to-spread footing large-scale tests, including descriptions of the specimen design, testing, data reduction, and conclusions regarding the use of the connection with the precast bent system. The tests provide data regarding the performance of the precast column-to-spread footing connection. The results indicate that the connection, when used with a precast column, is sufficiently strong to support the factored design gravity loads and to resist plastic hinging in the column above the footing. The behavior is emulative of cast-in-place performance. However, the precast column also provides an improved load path for lateral force transfer to the footing, owing to the elimination of outwardly hooked column longitudinal reinforcement. Additionally, the connection performance is adequate without reinforcement passing from the footing into the column, thus simplifying construction.
• Format:
  PDF
• Funding:
  DTFH61-09-G-00005
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/42686/dot_42686_DS1.pdf
• File Type:
  [PDF - 25.57 MB]
• Collection(s):
  Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:6667e3f0419657c73e730a81a84cd3ed64db1a5f2f9ff7349c1f32c4d64e4afacffad18b2a91e2537ae2c92a1e49515d108c8a75cf1b39b433ca3090a9b56563