DYNAMIC LOAD DISTRIBUTION IN CONTINUOUS I-BEAM HIGHWAY BRIDGES

THE LOAD DISTRIBUTION TO THE LONGITUDINAL I-BEAMS IS BEING MEASURED WITH STRAIN GAGES FOR THE OUTER AND INNER SPANS AND AT THE INTERIOR SUPPORTS FOR TWO TYPES OF CONTINUOUS FOUR-SPAN HIGHWAY BRIDGES. ALUMINUM AND STEEL STRINGER BRIDGES ARE BEING USED. THE LOAD DISTRIBUTION WAS DETERMINED FOR STATIC AND MOVING LOADS AND INDICATES THE EFFECT OF DYNAMIC LOADING ON LATERAL LOAD DISTRIBUTION. THE EFFECTIVE COMPOSITE SECTIONS WERE DETERMINED EXPERIMENTALLY FOR NEGATIVE AND POSITIVE MOMENT. FROM THE RESULTS OF THE LOAD DISTRIBUTION DATA, INFLUENCE LINES ARE PRESENTED FOR THE LATERAL DISTRIBUTION OF LOADS AND A COMPARISON IS MADE WITH THE AASHO SPECIFICATIONS. THE EFFECTIVE COMPOSITE SECTION OF THE LONGITUDINAL STRINGERS, WHICH WAS REQUIRED FOR THE LOAD DISTRIBUTION STUDY, IS SHOWN AND INDICATES THAT THE DISTRIBUTION AND AMOUNT OF COMPOSITE ACTION VARY FROM THAT ALLOWED BY THE AASHO SPECIFICATIONS.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrr/1963/34/34-003.pdf
• Supplemental Notes:
  • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Linger, D A
  • Hulsbos, C L
• Publication Date: 1963

Media Info

• Media Type: Digital/other
• Features: Figures; References;
• Pagination: pp 47-69
• Monograph Title: Bridge design, analysis and costs
• Serial:
  • Highway Research Record
  • Issue Number: 34
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Alternatives analysis; Aluminum; Bridge superstructures; Bridges; Composite structures; Dynamic loads; Engineering moments; Highway bridges; I beams; Influence lines; Load transfer; Measurement; Specifications; Static loads; Steel; Strain gages; Stringers
• Uncontrolled Terms: Bridge spans; Composite bridges; Lateral loads
• Old TRIS Terms: Moments; Static loading
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00207694
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Oct 28 1994 12:00AM