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Material Resistance Factors for Reinforced Concrete Flexural and Compression Members
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 Title & Authors
Material Resistance Factors for Reinforced Concrete Flexural and Compression Members
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 Abstract
In the Ultimate Strength Design, the design strength of a member is determined by multiplying the strength reduction factor to the nominal strength. This concept may be a reasonable approach, however it can not consider failure modes appropriately. Moreover, column design strength diagram show an abrupt change at a low level of axial load, which does not seem to be reasonable. This research compares the design strength determined by the strength resistance factors. As the material resistance factors for flexure and compression, 0.65 and 0.90 are proposed for concrete and steel, respectively. The design strength calculation process by applying material resistance factors addresses failure modes more effectively than by applying member strength reduction factor, and provides more resnable design strength for reinforced concrete flexural and compression members.
 Keywords
design strength;flexure and compression;strength reduction factor;material resistance factor;ductility;
 Language
English
 Cited by
 References
1.
ACI Journal, 1962. vol.59. 2, pp.145-276

2.
ACI Journal, 1962. vol.59. 12, pp.1821-1847

3.
Concrete International, 1988. pp.56-58

4.
콘크리트구조설계기준, 1999.

5.
Building Code Requirements for Structural Concrete and Commentary, 1995.

6.
한국콘크리트 학회논문집, 1999. vol.11. 4, pp.149-158

7.
Design of Concrete Structures (CSA Standard A23.394), 1994. pp.217

8.
Optimization Techniques with Fortran, 1973.

9.
Concrete International, 1993. vol.15. 5, pp.27-34