Impact of Higher Truck Loads on Remaining Safe Life of Louisiana Bridge Decks

Evaluation of the load capacity of existing bridge decks is a major concern for the Louisiana Department of Transportation and Development. Available funds must be expended in a rational strategy, which would allow for inspection, maintenance or rehabilitation. This paper presents the results of the study on the proposed higher truck loads and their economic impact to the state and to the industry. The impact of adapting such regulations on the existing Louisiana bridge decks is determined based on a deterministic load capacity evaluation as well as a reliability assessment. The target reliability level is derived from bridge deck structures designed to satisfy AASHTO standard design specifications and to satisfy safe and adequate performance levels. Fatigue analyses are performed using finite element modeling with detailed load capacity evaluations and reliability analyses on a representative sample of bridge decks to provide specific examples of expected changes in rating and safety levels.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0784407991
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Saber, Aziz
  • Roberts, Freddy L
  • Zhou, Xiang
  • Alaywan, Walid R
• Conference:
  • Applications of Advanced Technology in Transportation. The Ninth International Conference
  • Location: Chicago Illinois, United States
  • Date: 2006-8-13 to 2006-7-16
• Publication Date: 2006

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 214-219
• Monograph Title: Applications of Advanced Technology in Transportation. Proceedings of the Ninth International Conference

Subject/Index Terms

• TRT Terms: Bridge decks; Bridge design; Inspection; Maintenance; Maintenance of specific facilities; Maintenance practices; Rehabilitation; Reliability; Service life
• Identifier Terms: AASHTO LRFD Bridge Design Specifications
• Uncontrolled Terms: Load capacity; Truck loads
• Geographic Terms: Louisiana
• Subject Areas: Bridges and other structures; Design; Highways; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls; I60: Maintenance;

Filing Info

• Accession Number: 01038541
• Record Type: Publication
• ISBN: 0784407991
• Files: TRIS
• Created Date: Dec 29 2006 11:07AM