A 440 STEEL JOINTS CONNECTED BY A490 BOLTS

THIS REPORT PRESENTS DATA FROM EIGHT STATIC TENSION TESTS OF FULL-SIZED BOLTED BUTT JOINTS FABRICATED FROM 1-IN. PLIES OF A440 STEEL PLATE AND CONNECTED BY 7/8-IN. ASTM A490 HIGH- STRENGTH BOLTS. IN ADDITION, THIS REPORT INCLUDES THE RESULTS OF A THEORETICAL ANALYSIS OF A440 STEEL JOINTS FASTENED WITH EITHER A490 BOLTS OR A502-GRADE 2 HIGH- STRENGTH RIVETS. BOTH THE THEORETICAL AND EXPERIMENTAL STUDIES WERE DESIGNED TO SHOW THE EFFECTS OF SPECIFIC VARIABLES ON THE ULTIMATE JOINT STRENGTH, INCLUDING VARIATIONS IN PITCH, JOINT LENGTH, AND CHANGES IN THE RATIO OF NET PLATE AREA A/N/ TO THE TOTAL FASTENER SHEAR AREA A/S/ THE THEORETICAL STUDIES SHOW THAT THE AVERAGE SHEAR STRENGTH DECREASES WITH INCREASING JOINT LENGTH. FASTENER PITCH HAD A MINOR EFFECT ON THE SHEAR STRENGTH. TOTAL JOINT LENGTH HAD THE MOST IMPORTANT EFFECT ON THE AVERAGE SHEAR STRENGTH AT ULTIMATE JOINT LOAD FOR A GIVEN A/N'A/S/ RATIO. VARIATIONS IN THE A/N/'A/S/ RATIO PRODUCED MAJOR CHANGES IN AVERAGE SHEAR STRENGTH. THE MAXIMUM DEVIATION BETWEEN THE THEORETICAL SOLUTION AND TEST RESULTS WAS 7%. EXPERIMENTAL DATA SHOW THAT THE PRESENT SLIP COEFFICIENT OF 0.35 USED IN THE RCRBSJ SPECIFICATION IS REASONABLE. /AUTHOR/

• Corporate Authors:

  Lehigh University

  Bethlehem, PA  United States  18015
• Authors:
  • Sterling, G H
  • Fisher, J W
• Publication Date: 1965-8

Subject/Index Terms

• TRT Terms: Areas; Bolted joints; Bolts; Butt joints; Coefficients; Joints; Length; Loads; Pitch (Dynamics); Plate metal; Rivets; Shear strength; Shear stress; Slip (Fluid mechanics); Static tests; Steel plates; Strength of materials; Tension tests; Theory
• Identifier Terms: ASTM International
• Old TRIS Terms: A440 steel astm; A490 bolts astm; Joint; Slip coefficient
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00215826
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 1 1994 12:00AM