SEAM STRENGTH OF ASPHALT COATED STRUCTURAL PLATE PIPE

A FACTORIAL STATISTICAL EXPERIMENT WAS PERFORMED IN ORDER TO DETERMINE THE EFFECT OF ASPHALT COATING AND/OR BOLT TORQUE LEVEL ON THE SEAM STRENGTH OF STRUCTURAL STEEL PLATE PIPE SPECIMENS. LABORATORY TESTS WERE PERFORMED ON SPECIMENS, ONE FOOT IN WIDTH, OF THREE AND EIGHT GAGE ASPHALT COATED AND PLAIN HOT-DIP GALVANIZED STRUCTURAL STEEL PLATE PIPE. THE SPECIMENS WERE CONNECTED WITH FOUR BOLTS WHICH FOR HALF OF THE SPECIMENS WERE TORQUED TO 50 FT-LBS. THE CONNECTING BOLTS ON THE REMAINING SPECIMENS WERE TORQUED TO 200 FT-LBS. FINDINGS INDICATE THAT THERE IS NO SIGNIFICANT DIFFERENCE IN ULTIMATE SEAM STRENGTH BETWEEN SPECIMENS COATED WITH ASPHALT AND THOSE WITH A HOT-DIP GALVANIZED COATING. FINDINGS ALSO INDICATE THAT THERE IS NO SIGNIFICANT DIFFERENCE BETWEEN ULTIMATE SEAM STRENGTHS OF SPECIMENS CONNECTED WITH BOLTS TORQUED TO THE TWO LEVELS STATED ABOVE. INDIVIDUAL TEST RESULTS INDICATE THAT PROPER ALIGNMENT OF THE BOLT HOLES, IN ORDER TO ASSURE UNIFORM DISTRIBUTION OF BEARING FORCES ALONG THE SEAM, IS CRITICAL TO ULTIMATE SEAM STRENGTH. /AUTHOR/

• Supplemental Notes:
  • M & R No 636407, PP 1-26, 16 FIG, 2 TAB, 1 APP
• Corporate Authors:

  California Department of Transportation

  1120 N Street
  Sacramento, CA  United States  95814
• Authors:
  • Nordun, E F
  • Ames, W H
  • JOHNSON, M H
  • Trimble, R R
• Publication Date: 1968-2

Subject/Index Terms

• TRT Terms: Asphalt; Bolted joints; Bolts; Coatings; Corrugated pipe culverts; Factor analysis; Galvanizing; Holes; Joints; Laboratory tests; Pipe; Seams; Strength of materials; Structural steel; Torque
• Old TRIS Terms: Hot dip galvanizing
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00216636
• Record Type: Publication
• Files: TRIS, STATEDOT
• Created Date: Sep 3 1994 12:00AM