Title:
Behavior of Hollow, Rectangular Reinforced Concrete Piers Subjected to Biaxial Loading
Author(s):
Hernan Santa Maria, Sharon L. Wood, and John E. Breen
Publication:
Structural Journal
Volume:
103
Issue:
3
Appears on pages(s):
390-398
Keywords:
bending; buckling; piers; wall
DOI:
10.14359/15317
Date:
5/1/2006
Abstract:
The results of previous experimental investigations of hollow, rectangular reinforced concrete piers subjected to combined axial load and uniaxial bending were used to establish a slenderness limit for design. If the ratio of the maximum unsupported length of the cross section to the wall thickness exceeds the limiting slenderness, local buckling of the wall is likely to limit the strength of the cross section. Otherwise, local buckling of the walls in the hollow pier does not have an appreciable influence on the strength of the cross section. The applicability of using the same slenderness limit to design hollow piers subjected to biaxial bending has not been previously investigated. The research described in this paper provides experimental evidence that current design procedures for hollow, rectangular piers provide a conservative estimate of the strength of piers subjected to both uniaxial and biaxial loading.