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Title: Analysis of Nonprismatic or Hollow Slender Concrete Bridge Piers

Author(s): R. W. Poston, J. E. Breen, and J. M. Roesset

Publication: Journal Proceedings

Volume: 82

Issue: 5

Appears on pages(s): 731-739

Keywords: bending;biaxial loads;bridge piers;columns (supports);computer programs;creep properties;deflection;matrix methods;moment curvature relationships;reinforced concrete;research;slenderness ratio;strength;structural analysis.

DOI: 10.14359/10385

Date: 9/1/1985

A fiber model analytical procedure that was used in a series of computer programs for the analysis of biaxially loaded, nonprismatic or hollow slender concrete bridge piers is described. The computer programs were compared with results from previously reported tests and from data gathered from the experimental investigation of hollow piers in another phase of the overall research program. In general, the comparisons show good agreement between the actual and predicted behavior. However, the experimental data studied indicates that use of the progcams should be restricted to pier sections with cross section unsupported wall length to thickness ratios less than about 8. An application of a tapered bridge pier demonstrates the power and versatility of the computer programs as design tools.


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