Title:
Serviceability of Circular Prestressed Concrete Tanks
Author(s):
A. Ghali and Eleanor Elliot
Publication:
Structural Journal
Volume:
89
Issue:
3
Appears on pages(s):
345-355
Keywords:
concretes; cracking (fracturing); crack width and spacing; creep properties; joints (junctions); nonlinear programming; prestressing; serviceability; shrinkage; steels; storage tanks; stresses; temperature; Structural Research
DOI:
10.14359/2805
Date:
5/1/1992
Abstract:
Conventionally, a residual compression of 150 to 300 psi is provided in circular concrete tanks to allow for stresses due to temperature and shrinkage, and to thereby prevent cracking. This residual compression is not sufficient to prevent cracking, and the provision of nonprestressed reinforcement, in addition to prestressed reinforcement, is essential to control cracking. Changes in bending moment and hoop force distribution when cracking occurs are also discussed.