International Concrete Abstracts Portal

  


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.


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