Seismic performance of an I-girder to inverted-T bent cap connection.

Details

• Alternative Title:
  Seismic performance of an I girder to inverted T bent cap connection.
• Creators:
  Snyder, R. ; Werff, J. Vander ; Thiemann, Z. ; Sritharan, S. ; Holombo, J.
• Corporate Creators:
  Iowa State University. Department of Civil, Construction and Environmental Engineering
• Subject/TRT Terms:
  • Prestressed concrete beams
  • Earthquake effects
  • Prestressed concrete bridges
  • Girders
  • Joints
• Publication/ Report Number:
  05-0160
• Resource Type:
  Tech Report
• Geographical Coverage:
  California
• Corporate Publisher:
  California. Department of Transportation
• Abstract:
  This report presents the research conducted as part of an investigation for the California Department of Transportation (Caltrans) regarding the seismic response and overall moment capacity of precast I-girder to inverted-T bent cap bridge connections for seismic applications. The current design practice, as outlined by Caltrans' Seismic Design Criteria, assumes that the connection between the precast I-girders and the inverted-T bent cap will degrade in a seismic event and shall therefore be designed as a pinned connection, making the precast girder option for seismic bridges inefficient. A prototype I-girder to inverted-T bent cap bridge and a 50% scale test unit was designed in order to investigate the behavior of the as-built girder-to-cap connection region. Additionally, per the request of Caltrans, an improved girder-to-cap connection detail was developed in order to ensure a fully continuous moment connection between the I-girders and inverted-T bent cap.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27651/dot_27651_DS1.pdf
• File Type:
  [PDF - 10.83 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:116298c5410188b06fc2b29b4a13e3af6503cf3885fd1992aba3828756c6fe71