STRENGTH AND BEHAVIOR OF ANCHOR BOLTS EMBEDDED NEAR EDGES OF CONCRETE PIERS

The primary objective of this investigation was to evaluate the effects of bolt diameter, embedment length, clear cover, and bearing area on the behavior of high-strength anchor bolts. Both model and full-scale tests were conducted. In addition, a series of exploratory full-scale tests were run to determine the influence of cyclic load, lateral load, bolt groups, and transverse reinforcement on the behavior. The tests showed that the anchor bolt transfers loads to the concrete member by a sequence involving steel-to-concrete bond, bearing against the washer of the anchorage device, and, finally, wedging action by a cone of crushed and compacted concrete in front of the anchorage device. The parameters were evaluated by comparing bolt stress slip curves. A regression analysis of the test results was used to develop a design equation for anchor bolts. /Author/

• Supplemental Notes:
  • This report was sponsored by the Texas State Department of Highways and Public Transportation and prepared in cooperation with the Department of Transportation, Federal Highway Administration.
• Corporate Authors:

  University of Texas, Austin

  Center for Highway Research, 200 West 21st Street
  Austin, TX  United States  78712
• Authors:
  • Hasselwander, G B
  • Jirsa, James O
  • Breen, J E
  • LO, K
• Publication Date: 1977-5

Media Info

• Features: Figures; References; Tables;
• Pagination: 134 p.

Subject/Index Terms

• TRT Terms: Anchor bolts; Anchoring; Design; High strength materials; Mathematical models; Piers (Supports); Piers (Wharves); Regression analysis; Repeated loads; Strength of materials; Testing; Transverse reinforcement
• Uncontrolled Terms: Lateral pressure; Models
• Old TRIS Terms: Embedments (Concrete)
• Subject Areas: Bridges and other structures; Data and Information Technology; Design; Highways;

Filing Info

• Accession Number: 00172890
• Record Type: Publication
• Report/Paper Numbers: CFHR-3-5-74-29-2F Final Rpt.
• Contract Numbers: Study No. 3-5-74-29
• Files: TRIS
• Created Date: Apr 12 1978 12:00AM