TENSILE LAP SPLICES - PART 2: DESIGN RECOMMENDATIONS FOR RETAINING WALL SPLICES AND LARGE BAR SPLICES

AS A CONTINUATION OF REPORT 113-2 AN ADDITIONAL 32 FULL SIZE BEAMS WERE TESTED WITH #5 (1 BEAM), #11, #14, AND #18 TENSION BAR SPLICES. THE NEEDED SPLICE LENGTH IS SUBJECT TO THE OBVIOUS VARIABLES, INCLUDING BAR STRESS, CONCRETE STRENGTH, BAR DIAMETER, CLEAR LATERAL SPACING, RATIO S'/C, THE RATIO OF THE NET WIDTH OF CONCRETE BETWEEN BARS (TYPICALLY THE CLEAR SPLICE SPACING S') TO THE CLEAR COVER C. IN A SMALLER WAY THIS COEFFICIENT IS ALSO A FUNCTION OF THE BAR STRESS. THE RATIO OF S'/C DETERMINES THE TYPE OF SPLICE FAILURE TO BE EXPECTED. RECOMMENDED DESIGN EQUATIONS ARE PRESENTED, WHICH INCLUDE A RESERVE TO DEVELOP TOUGHNESS IN THE MEMBER. IN GENERAL, THE 1969 AASHO SPECIFICATION IS SHOWN TO BE INADEQUATE EXCEPT FOR SMALL BAR SIZES AND LARGE LATERAL SPACINGS OF SPLICES.

  • Supplemental Notes:
    • RES REPT 113-3
  • Corporate Authors:

    University of Texas, Austin

    Center for Highway Research, 200 West 21st Street
    Austin, TX  United States  78712
  • Authors:
    • Ferguson, P M
    • Krishnaswamy, C N
  • Publication Date: 1971-4

Media Info

  • Features: Figures; Tables;
  • Pagination: 60 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00209661
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 29 1972 12:00AM