CONFINEMENT ROLE IN ANCHORAGE CAPACITY

In the present paper, the role of the confining forces both on bond capacity and on splitting crack opening under service loads is shown. In particular, theoretical relationship between the transverse reinforcement area, the bond strength, the splitting crack opening and the stirrup stress are presented. The theoretical predictions are contrasted with some experimental results and a discussion on the values provided by building codes is presented. The results show the strong influence of transverse reinforcement whose confining force is expressed by the stirrup index of cinfinement, which governs bond behavior and is suitable for design. The comparison with several experimental results showed a good agreement between theory and tests. Adequate values are also required to control splitting crack opeining under service loads. For common amounts of transverse reinforcement, the splitting crack opening can be larger than one half of the flexural crack, which could be unacceptable for structural durability.

  • Corporate Authors:

    American Concrete Institute (ACI)

    38800 Country Club Drive
    Farmington Hills, MI  United States  48331
  • Authors:
    • Giuriani, E
    • Plizzari, G A
  • Publication Date: 1998

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 171-193
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00759895
  • Record Type: Publication
  • Report/Paper Numbers: SP 180-8
  • Files: TRIS
  • Created Date: Feb 5 1999 12:00AM