PREDICTION OF THE SEISMIC LOADING ANCHORAGE CHARACTERISTICS OF REINFORCED BARS

A mathematical model is developed for predicting the relationship between the axial force on an anchored reinforcing bar and the displacement of the loaded end of that bar relative to the surrounding concrete. The model has different forms for monotonic and reversed cyclic loading. For reversed cyclic loading the model takes account of yielding of the reinforcing steel, Bauschinger effects, the nonlinear nature of the bond stress distribution and the modification of that distribution caused by loading reversals. The essential characteristics of the model are established from the results of 13 stub-cantilever tests on specimens containing a single No. 10 bar and reported in a companion paper. It is shown that in addition to correctly predicting the load-slip relationships for those stub-cantilever tests, the model also predicts reasonably well the load-slip relationships obtained in stub-cantilever tests on specimens loaded monotonically to failure.

Media Info

  • Pagination: p. 417-438

Subject/Index Terms

Filing Info

  • Accession Number: 00188919
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: SP-53 Conf Paper
  • Files: TRIS
  • Created Date: Mar 28 1979 12:00AM