Title:
Prestressed Walls and Columns--Minimum Prestress Level
Author(s):
Satyendra K. Ghosh and Vytenis P. Markevicius
Publication:
Structural Journal
Volume:
84
Issue:
2
Appears on pages(s):
132-138
Keywords:
axial loads; bending moments; building codes; columns (supports); prestressed concrete; prestressing; structural design; walls; Structural Research
DOI:
10.14359/2820
Date:
3/1/1987
Abstract:
The 225 psi (1.55 MPa) effective prestress limit of the ACI Building Code, dividing prestressed concrete walls and columns from those considered nonstressed, is critically examined in this paper. Exemption from minimum wall reinforcement requirements can be extended to walls that are designable by the empirical design procedure of the code and that carry an effective prestress level of 125 psi (0.86 MPa) or more. The 225-psi (1.55-MPa) limit is justified in the case of columns and walls subject to significant out-of-plane bending moments.