OVERLOAD BEHAVIOR OF PRETENSIONED PRESTRESSED CONCRETE I- BEAMS WITH WEB REINFORCEMENT

THIS PAPER PRESENTS AND DISCUSSES THE RESULTS OF ULTIMATE STATIC STRENGTH TESTS ON 18 PRETENSIONED PRESTRESSED CONCRETE I-BEAMS WITH WEB REINFORCEMENT. THE PRINCIPAL VARIABLES IN THE TEST PROGRAM WERE THE SHEAR SPAN TO EFFECTIVE DEPTH RATIO, WHICH VARIED BETWEEN 2.54 AND 6.39, AND THE PERCENTAGE OF WEB REINFORCEMENT. THE BEAMS HAD AN OVERALL DEPTH OF 18 IN. AND THE MAJORITY OF THE TESTS WERE CONDUCTED ON A SHEAR SPAN TO EFFECTIVE DEPTH RATIO OF 3.39, FOR WHICH THE WEB REINFORCEMENT PERCENTAGE WAS VARIED FROM 0 TO 1.22. THE BEHAVIOR OF THE TEST BEAMS UNDER OVERLOADS TO FAILURE IS DISCUSSED IN DETAIL. REQUIREMENTS FOR THE AMOUNT OF WEB REINFORCEMENT BASED ON THE CURRENT AASHO SPECIFICATIONS ARE COMPARED WITH THE RESULTS. IN ADDITION, PROCEDURES FOR IMPROVED DESIGN OF THE WEB REINFORCEMENT ARE CONSIDERED. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1965/76/76-001.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:
  • Hanson, John M
  • Hulsbos, C L
• Publication Date: 1965

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; References; Tables;
• Pagination: pp 1-31
• Monograph Title: Design - Bridges and Structures
• Serial:
  • Highway Research Record
  • Issue Number: 76
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Beams; Behavior; Bridge members; Depth; I beams; Length; Material reinforcement; Oversize loads; Prestressed concrete; Prestressing; Pretensioning; Ratios; Shear strength; Statics; Testing; Ultimate strength; Webbing
• Uncontrolled Terms: Bridge spans; Overloads
• Old TRIS Terms: Static conditions
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00207701
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Dec 12 1994 12:00AM