CCT Nodes Anchored by Headed Bars - Part 1: Behavior of Nodes

The paper examines the anchorage behavior of headed reinforcement in compression-compression-tension (CCT) nodes. Measurements of strains in ties and confining reinforcement, head slip, node and strut capacities are reported, as are observations of cracking behavior. The behavior of confined and unconfined nodes is compared. Strain measurements along ties and the confining steel around the node are obtained to determine the stress state of the node. The strain data show node failure to be related primarily to the anchorage of the tie bar. The anchorage of headed reinforcement is also studied. Headed reinforcement anchorage is shown to consist of bond and head-bearing components. These two components do not peak simultaneously, as bond components generally peak and begin to decline before head bearing components peak.

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  • Authors:
    • Thompson, M Keith
    • Ziehl, Michele J
    • Jirsa, James O
    • Breen, John E
  • Publication Date: 2005-11

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01006909
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 2 2005 3:48PM