BRIDGES '89 FOCUS. SPEC CHANGES ALTER STEEL BOLT USE

Significant changes in the erection of structural steel may result from changes to the standard Specification for Structural Joints Using ASTM A325 or A490 major high-strength bolts. From the point of view of assembly and inspection, the most significnt changes impact requirements for installation tightening. Slip-critical connections, and connections subject to direct tension, are required to be fully tensioned, and inspected to ensure that a prescribed, minimum level of pretension is achieved. Most shear/bearing connections need not be tightened to this prescribed pretension but be tightened adequately to pull all connected material into firm contact, termed snug fit. Other changes are noted and include the following: snug tight; full tensioning; tension calibration devices; calibrated wrench method.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/11660022
• Corporate Authors:

  Scranton Gillette Communications

  380 E Northwest Highway, Suite 200
  Des Planes, IL  United States  60016-2282
• Publication Date: 1989-11

Media Info

• Pagination: p. 49
• Serial:
  • Roads & Bridges
  • Volume: 27
  • Issue Number: 11
  • Publisher: Scranton Gillette Communications
  • ISSN: 8750-9229
  • Serial URL: http://www.roadsbridges.com/rb/

Subject/Index Terms

• TRT Terms: Bolts; Building; Calibration; Facilities; Inspection; Installation; Joints; Specifications; Steel; Structural steel; Tension
• Old TRIS Terms: Joint
• Subject Areas: Bridges and other structures; Construction; Design; Highways; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00490989
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 28 1990 12:00AM