BOLTED BRIDGE BEHAVIOR DURING ERECTION AND SERVICE

MEASUREMENTS WERE MADE OF THE MOVEMENTS AT CONNECTIONS OF A 310-FT. RAILWAY BRIDGE OVER A PERIOD OF 3-1/2 YR. THE STUDY WAS INITIATED DURING SHOP-ASSEMBLY OF A TRUSS AND WAS ENDED AFTER 3 YR OF SERVICE LOADING. AS MIGHT BE EXPECTED, SUBSTANTIAL RELATIVE MOVEMENTS OF THE BRIDGE JOINTS OCCURRED DURING ERECTION WITH THE ADDITION OF DEAD LOAD, BRACING, AND FLOOR SYSTEMS. THE EFFECTS OF THE MEASURED MOVEMENTS ON CHANGES IN CAMBER ARE EXAMINED AND COMPARED WITH LEVEL READINGS TAKEN DURING THE 3 YR OF TRAFFIC. IN ESSENCE, NO SERVICE MOVEMENTS WERE FOUND, AND NO EVIDENCE OF A MARKED CHANGE IN CAMBER WAS FOUND. THESE FINDINGS SUGGEST THAT A PROPERLY DESIGNED STRUCTURE WITY PROPERLY INSTALLED HIGH- STRENGTH BOLTS WILL NOT SLIP UNDER NORMAL SERVICE LOADINGS. /AUTHOR/

• Supplemental Notes:
  • Vol 91, No ST3, PROC PAPER 4365, PP 57-70
• Authors:
  • Chesson, E
• Publication Date: 1965-6

Media Info

• Serial:
  • Journal of the Structural Division
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Bolted joints; Bolts; Bracing; Curvature; Erection (Building); Field studies; Floors; High strength steel; Joints; Loads; Measurement; Motion; Railroad bridges; Static loads; Structural design; Traffic; Truss bridges
• Uncontrolled Terms: Loading
• Old TRIS Terms: Field observation; Inservice; Joint
• Subject Areas: Bridges and other structures; Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00208269
• Record Type: Publication
• Files: TRIS
• Created Date: May 25 1994 12:00AM