HIGH STRENGTH BOLTS SUBJECT TO TENSION AND PRYING

EFFECTS OF BOTL LOAD-DEFORMATION CHARACTERISTICS, THE TEE GEOMETRY, AND THE CONNECTION DETAILING WERE CONSIDERED IN THIS INVESTIGATION. A TWO-DIMENSIONAL FINITE ELEMENT TECHNIQUE WAS USED TO MODEL THE FLANGE OF THE CONNECTION AND A TYPICAL NONLINEAR BOLT LOAD DEFORMATION CURVE ACCOUNTED FOR THE BOLT BEHAVIOR. THE LOAD DISTRIBUTION ON THE FLANGE, THE STRESSES IN THE FLANGE, THE BOLT LOAD, AND THE BOLT DEFORMATION WERE COMPUTED AT ZERO APPLIED LOAD IN INCREMENTS TO ULTIMATE. FAILURE WAS EITHER BY BOLT RUPTURE OR FORMATION OF A PLASTIC HINGE IN THE FLANGE. THE PRYING FORCES WHICH DEVELOP AS A RESULT OF FLANGE DEFORMATION ARE SHOWN TO CAUSE SUBSTANTIAL REDUCTION IN BOTH THE ULTIMATE LOAD CAPACITY AND THE FATIGUE STRENGTH FOR CERTAIN CONNECTIONS. EMPRICIAL EQUATIONS ARE PRESENTED FOR THE PREDICTION OF THE ULTIMATE STRENGTH OF TEE CONNECTIONS.

• Supplemental Notes:
  • PROC PAPER 10373
• Authors:
  • Nair, R S
  • Birkomoe, P C
  • Munse, W H
• Publication Date: 1974-2

Media Info

• Pagination: p. 351-72
• Serial:
  • Journal of the Structural Division
  • Volume: 100
  • Issue Number: st2
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Bolts; Deformation; Equations; Failure; Flanges; Loads; Mathematical models; Strength of materials; Tension
• Uncontrolled Terms: Models
• Old TRIS Terms: High strength bolts; Prying action
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00210077
• Record Type: Publication
• Files: TRIS
• Created Date: May 15 1974 12:00AM