LONGITUDINAL SEISMIC RESPONSE OF SPLICED BATHTUB-GIRDER BRIDGES

The second of two large scale precast spliced-girder bridges was tested recently at the University of California, San Diego to verify the adequacy of newly developed integral column-superstructure details under fully reversed, simulated longitudinal seismic loads. The bridge tested was a 40% full scale model which incorporated continuously post-tensioned precast bathtub girders. The testing program is part of an ongoing California Department of Transportation (Caltrans) research project in conjunction with the Precast Manufacturers of California (PCMAC) and the University of California, San Diego (UCSD) to develop integral column-superstructure details for precast bridges. A structural displacement ductility of 6 was reached with no significant strength loss due to joint degradation or superstructure nonlinearity.

• Corporate Authors:

  California Department of Transportation

  1120 N Street
  Sacramento, CA  United States  95814
• Authors:
  • Holombo, J
  • Priestley, N
  • Seible, F
• Conference:
  • Second National Seismic Conference on Bridges and Highways
  • Location: Sacramento, California
  • Date: 1997-7-8 to 1997-7-11
• Publication Date: 1997

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 123-133

Subject/Index Terms

• TRT Terms: Bridge superstructures; Columns; Girder bridges; Precast concrete; Scale models; Splicing; Testing
• Uncontrolled Terms: Displacements (Structural); Integral structures; Seismic loads
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00760092
• Record Type: Publication
• Files: TRIS, STATEDOT
• Created Date: Feb 1 1999 12:00AM