Impact of the Overloading of Heavy Goods Vehicles on the Fatigue Life of Steel Bridges

This paper presents the results of an investigation into the impact of overloading of trucks on fatigue life of member details of an existing highway steel bridge. Different traffic scenarios were investigated by varying the percentage of overloading and number of overloaded heavy goods vehicles in the total truck traffic population using 2 axle, 3 axle and 4 axle trucks. The nominal stress approach was used for global fatigue damage assessment of member details of a bridge. The results show that heavy goods vehicles should not be overloaded beyond 20% of their maximum allowable gross vehicle weight (GVW) and the number of overloaded trucks within the traffic population should not exceed 10%. Overloading beyond this limits, increases the rate of fatigue damage to steel details by at least 20% and more. It was observed that a linear relationship exists between increase in GVW of heavy goods vehicles and fatigue damage to bridge details.

• Record URL:
  • https://doi.org/10.1061/9780784480403.037
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784480403
• Supplemental Notes:
  • © 2017 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Ayilara, A Q
  • Liew, M S
• Conference:
  • Structures Congress 2017
  • Location: Denver Colorado, United States
  • Date: 2017-4-6 to 2017-4-8
• Publication Date: 2017

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Monograph Title: Structures Congress 2017: Bridges and Transportation Structures

Subject/Index Terms

• TRT Terms: Failure; Fatigue strength; Gross vehicle weight; Overweight loads; Repeated loads; Steel bridges; Trucks
• Subject Areas: Bridges and other structures; Freight Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 01687457
• Record Type: Publication
• ISBN: 9780784480403
• Files: TRIS, ASCE
• Created Date: Nov 30 2018 5:04PM