Research for AASHTO Standing Committee on Highways. Task 186. Updating the Calibration Report for AASHTO LRFD Code

The report documenting the calibration process (NCHRP Report 368) was completed prior to the final selection of load and resistance factors used in the AASHTO LRFD Bridge Design Specifications (LRFD Specifications). The reliability analysis that serves as a basis for load and resistance factors included in the LRFD Specifications was performed for the AASHTO Standard Specifications (1989 edition). As a result, NCHRP Report 368 provides the background information and the calibration procedure for the LRFD Specifications, but it does not correspond to the actual code provisions. Therefore, there is a need for updating the calibration report so that it can serve as a reference for the specifications. The objective of this project is to fully document the calibration of the AASHTO LRFD Bridge Design Specifications (LRFD). Reliability analyses for representative bridges, including steel (non-composite and composite girders), reinforced concrete T-beams, and prestressed concrete AASHTO type girders shall be performed using the LRFD load and resistance factors.

• Record URL:
  http://www.trb.org/TRBNet/ProjectDisplay.asp?ProjectID=1210

Language

• English

Project

• Status: Completed
• Funding: $60000.00
• Contract Numbers:

  Project 20-07, Task

• Sponsor Organizations:

  American Association of State Highway and Transportation Officials (AASHTO)

  444 North Capitol Street, NW
  Washington, DC  United States  20001

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001

  National Cooperative Highway Research Program

  Transportation Research Board
  500 Fifth Street, NW
  Washington, DC  United States  20001
• Project Managers:

  Beal, David

• Performing Organizations:

  Modjeski & Masters, Incorporated

  P.O. Box 2345
  Harrisburg, PA  United States  17105-
• Principal Investigators:

  Kulicki, John

• Start Date: 20050809
• Expected Completion Date: 0
• Actual Completion Date: 20070131
• Source Data: RiP Project 11707

Subject/Index Terms

• TRT Terms: Bridge design; Building codes; Composite materials; Girders; Load factor; Prestressed concrete bridges; Reinforced concrete bridges; Research projects; Resistance (Mechanics); Specifications; Steel structures
• Identifier Terms: National Cooperative Highway Research Program
• Subject Areas: Administration and Management; Bridges and other structures; Highways; I30: Materials;

Filing Info

• Accession Number: 01462955
• Record Type: Research project
• Source Agency: National Cooperative Highway Research Program
• Contract Numbers: Project 20-07, Task
• Files: RIP
• Created Date: Jan 3 2013 2:13PM