Omni-directional Hysteretic p-y Models for Piles Embedded in Cohesive Soils

The newly developed performance-based seismic design methodologies require accurate estimates of the lateral displacements of a structure, because lateral drift is related directly to the serviceability and safety performance criteria. To achieve a better prediction of engineering demand parameters under various seismic hazard levels or limit states, nonlinear time-history analyses are required. Highway bridges need to maintain functionality after the occurrence of catastrophic earthquake events. The reliability of predictions obtained through nonlinear time-history analyses depends largely on the correct and accurate modeling of the structural features (e.g., curved decks, skewed abutments, uneven column heights, etc.), on the proper selection of the input ground motion records (such that they are representative of the future earthquakes at the specific site of the bridge), and on the accurate consideration of the soil-structure interaction (SSI) effects.

Language

• English

Project

• Status: Active
• Sponsor Organizations:

  California Department of Transportation

  Sacramento, CA  United States  95819
• Project Managers:

  Sikorsky, Charles

• Performing Organizations:

  Regents of the University of California, San Diego

  San Diego, CA  United States 
• Principal Investigators:

  Elgamal, Ahmed

• Start Date: 20130308
• Expected Completion Date: 20150930
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Bridge decks; Cohesive soils; Earthquake resistant design; Earthquakes; Embedded systems; Highway bridges; Seismicity; Skew bridges; Soil structure interaction; Support piles
• Subject Areas: Bridges and other structures; Geotechnology; Highways;

Filing Info

• Accession Number: 01620569
• Record Type: Research project
• Source Agency: California Department of Transportation
• Files: RIP, STATEDOT
• Created Date: Jan 4 2017 10:54AM