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Title: Beam Bar Anchorage in Exterior Column-Beam Connections

Author(s): T. Ueda, I. Lin, and N. M. Hawkins

Publication: Journal Proceedings

Volume: 83

Issue: 3

Appears on pages(s): 412-422

Keywords: anchorage (structural); beams (supports); bond (concrete to reinforcement); columns (supports); computer programs; connections; embedment.

DOI: 10.14359/10442

Date: 5/1/1986

The development of a computer model that can predict the load-lead end deformation and anchorage length requirements for reinforcing bars extending from beams into exterior columns and subjected to large inelastic loadings is reported. The model incorporates six basic elements: a local bond stress-slip relationship; a stress-strain relationship for the steel; a continuity condition between steel and concrete; a modification for unconfined concrete; a failure criterion; and an equivalent embedment length criterion for a hooked bar. The results of the model are shown to be in good agreement with the results of tests on straight and 90 deg hooked bars anchored within specimens simulating conditions for exterior column-beam connections.


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