Title:
Effect of Span-Depth Ratio on the Ultimate Steel Stress in Unbonded Prestressed concrete members
Author(s):
Mohamed H. Harajli
Publication:
Structural Journal
Volume:
87
Issue:
3
Appears on pages(s):
305-312
Keywords:
ductility; flexural strength; prestressed concrete; stresses; prestressing steels; span-depth ratio; structural design; Structural Research
DOI:
10.14359/2631
Date:
5/1/1990
Abstract:
The effect of member span-depth ratio on the predicted steel stress fps in unbonded prestressed concrete members at their nominal moment resistance is implemented in an approximate manner of ACI 318-83. The recognition of member span-depth ratio and its implementation as an independent design parameter was made based on comparison of limited experimental results. However, there is not yet a clear phenomenological explanation that helps in understanding the mechanism of this parameter and its level of influence on the predicted fps at ultimate flexural strength.