Abstract
The authors establish a slenderness limit for design by using previous experimental investigations and current experiments of hollow, rectangular reinforced concrete piers subjected to a combined axial load and uniaxial bending test. The goals of this investigation was to study the behavior of thin-walled concrete compression members subjected to biaxial bending, and to determine if local buckling of the walls limited the capacity of the cross section. Fiber models were used to evaluate the responses of the specimens, and the results were compared to the current design provisions in the American Association of State Highway and Transportation Officials Load and Resistance Factor Design Bridge Specifications to determine possible applications of the slenderness limits.
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