A514 STEEL JOINTS FASTENED BY A490 BOLTS

THE RESULTS OF BOTH ANALYTICAL AND EXPERIMENTAL STUDIES OF THE BEHAVIOR OF CONSTRUCTIONAL ALLOY (A514) BUTT SPLICES WHICH USE A490 FASTENERS ARE REPORTED. BASED ON THE RESULTS OF PREVIOUS THEORETICAL WORK, THE PARAMETERS THAT MIGHT BE EXPECTED TO AFFECT THE BEHAVIOR OF THIS TYPE OF JOINT WERE EXAMINED. THIS EXAMINATION SHOWED THAT THE ULTIMATE STRENGTH OF THESE JOINTS IS A FUNCTION OF JOINT LENGTH AND RELATIVE PLATE-FASTENER PROPORTIONS. IT IS SHOWN TO BE INDEPENDENT OF FASTENER DIAMETER OR PITCH, PER SE. THE VALIDITY OF THE PREVIOUSLY DEVELOPED THEORETICAL WORK AND THE ANALYTICAL STUDIES REPORTED HEREIN HAVE BEEN VERIFIED BY MEANS OF AN EXTENSIVE TESTING PROGRAM. A COMPARISON SHOWS THAT THE THEORETICAL PREDICTIONS ARE RELIABLE, BOTH FOR THE ULTIMATE LOAD OF THE JOINT AND FOR OBTAINING THE DISTRIBUTION OF LOAD AMONG THE FASTENERS AT LOADS LESS THAN ULTIMATE. THE EXPERIMENTAL WORK ALSO SHOWED THAT BLAST-CLEANED A514 STEEL HAS A SLIP COEFFICIENT OF ABOUT 0.33. THE STUDY FURTHER SHOWED THAT CONSTRUCTIONAL ALLOY STEEL JOINTS USING A490 BOLTS DO NOT PRODUCE DESIRABLE BEHAVIOR IN THEIR ADJOINING MEMBERS IF THE ELEMENTS OF THE JOINTS ARE PROPORTIONED ACCORDING TO CURRENTLY USED STRESS LEVELS. /AUTHOR/

• Supplemental Notes:
  • Lab Rept No, 317 8, 51 PP, 17 FIG, 5 TAB, 19 REF
• Corporate Authors:

  Lehigh University

  Department of Civil Engineering
  Bethlehem, PA  United States  18015
• Authors:
  • Kulak, G L
  • Fisher, J W
• Publication Date: 1967-6

Subject/Index Terms

• TRT Terms: Alloy steel; Bolts; Breaking loads; Butt joints; Fasteners; Length; Load transfer; Steel; Structural plates
• Uncontrolled Terms: Plates
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00208357
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 31 1994 12:00AM