Statistical Analysis of Weigh in Motion Data to Validate Use of HL-93 AASHTO Vehicle Live Load for Bridge Design in Vermont

The AASHTO LRFD Bridge Design Specifications prescribe the use of a design vehicular live load, designated as HL-93, consisting of a combination of a "design truck" plus a "design lane" or "design tandem" plus a "design lane" whichever creates the worst effect. These are not intended to represent any specific truck loading, or specific loading condition, but rather to provide a level of structural demand (in terms of bending moments, shears, deflections, etc.) such that it envelopes most vehicle loads that the bridge will be required to carry during its service life. The overall objective of the proposed research is to validate the use of the AASHTO HL-93 design vehicular live load for bridge design and rating in Vermont. The research methodology involves collecting/transferring/classifying data from WIM stations, statistical analysis of WIM truck data, high performance computing for stochastic structural analysis simulations and computation of the probability of exceedance of structural demands with respect to the LRFD HL-93 vehicular loading. At the end of the project, we will have a quantifiable estimate of the resulting structural reliability of bridges in Vermont if the HL-93 design load is adopted.

• Record URL:
  http://www.uvm.edu/trc/university-transportation-center/utc-current-project-list/statistical-analysis-of-weigh-in-motion-data-to-validate-use-of-hl-93-aashto-vehicle-live-load-for-bridge-design-in-vermont/
• Supplemental Notes:
  • http://www.uvm.edu/~transctr/research/trc_reports/UVM-TRC-14-014.pdf

Language

• English

Project

• Status: Completed
• Funding: $27236.00
• Contract Numbers:

  DTRT06-G-0018

  027402

• Sponsor Organizations:

  Research and Innovative Technology Administration

  University Transportation Centers Program
  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Project Managers:

  Aultman-Hall, Lisa

  Troy, Austin

• Performing Organizations:

  UVM Transportation Center

  University of Vermont
  210 Colchester Avenue
  Burlington, VT  United States  05405
• Principal Investigators:

  Hernandez, Eric

• Start Date: 20120101
• Expected Completion Date: 0
• Actual Completion Date: 20131231
• Source Data: RiP Project 32096

Subject/Index Terms

• TRT Terms: Bending moments; Bridge design; Deflection; Live loads; Shear strength; Weigh in motion
• Geographic Terms: Vermont
• Subject Areas: Bridges and other structures; Design; Highways;

Filing Info

• Accession Number: 01566189
• Record Type: Research project
• Source Agency: UVM Transportation Center
• Contract Numbers: DTRT06-G-0018, 027402
• Files: UTC, RIP
• Created Date: Jun 12 2015 1:01AM