SEISMIC: Concrete Confinement Model Synthesis Study

A review of the literature reveals (a) seismic design practice has progressively advanced since the 1971 San Fernando earthquake, and (b) the seismic design practice adopted today has gone through rigorous experimental testing to ensure satisfactory response of bridges when subjected to moderate to large earthquakes. Concrete used in today's practice typically has higher strength than that used in the development of commonly used confinement equations. With an increase in concrete strength, the section ductility capacity will increase, but the ultimate strain capacity will be reduced. Hence, the confinement requirement and its influence on member and system ductility should be examined as a function of concrete strength. the amount of confinement can vary significantly using existing equations as demonstrated by Sritharan et al. (2008) for a 14-inch prestressed concrete pile.

Language

• English

Project

• Status: Active
• Funding: $74899.00
• Sponsor Organizations:

  California Department of Transportation

  1227 O Street
  Sacramento, CA  United States  95843
• Project Managers:

  Sikorsky, Charles

• Performing Organizations:

  Regents of the University of California, San Diego

  San Diego, CA  United States 
• Start Date: 20091202
• Expected Completion Date: 0
• Actual Completion Date: 20120531
• Source Data: RiP Project 27729

Subject/Index Terms

• TRT Terms: Bridges; Concrete; Earthquake resistant design; Seismicity
• Uncontrolled Terms: Concrete confinement; Confinement; Data synthesis
• Subject Areas: Bridges and other structures; Highways; I30: Materials;

Filing Info

• Accession Number: 01466055
• Record Type: Research project
• Source Agency: California Department of Transportation
• Files: RIP, STATEDOT
• Created Date: Jan 3 2013 3:09PM