Seismic Detailing of Steel H-Pile Connections

The objective of the research is to evaluate the existing connection via full-scale tests under reversed cyclic and axial loads; assess the accuracy of existing analysis methods for prediction of connection capacity (from the literature as well as current Alaska Department of Transportation and Public Facilities (AKDOT&PF) practice), and propose alternative strut and tie models, as needed; revise connection designs, based on initial tests and modelling; conduct additional full-scale tests on revised designs; and propose retrofits for existing cap-beams if needed. While there is some confidence in the performance of the existing AKDOT&PF H-pile to cap-beam connection design, there is also some uncertainty, based on embedment length of the pile. This research will either affirm existing practice (while also providing a unified process for analysis and design), or identify deficiencies that will require revision, and possible retrofit.

Language

• English

Project

• Status: Active
• Funding: $477,000.00
• Contract Numbers:

  HFHWY00353

  4000(231)

• Sponsor Organizations:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Managing Organizations:

  Alaska Department of Transportation and Public Facilities

  Research & Technology Transfer
  2301 Peger Road
  Fairbanks, AK  United States  99709-5399
• Project Managers:

  DeMattio, Cristina

• Performing Organizations:

  North Carolina State University, Raleigh

  Department of Civil Engineering, Campus Box 7908
  Raleigh, NC  United States  27695-7908
• Principal Investigators:

  Kowalsky, M

• Start Date: 20240101
• Expected Completion Date: 20270630
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Earthquake resistant design; Load tests; Structural connection; Strut and tie method; Support piles
• Identifier Terms: Cap beams
• Subject Areas: Bridges and other structures; Design; Highways;

Filing Info

• Accession Number: 01947030
• Record Type: Research project
• Source Agency: Alaska Department of Transportation and Public Facilities
• Contract Numbers: HFHWY00353, 4000(231)
• Files: RIP, STATEDOT
• Created Date: Feb 21 2025 9:54PM