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Title: Limit States of Cracking and Ultimate Strength of Arbitrary Concrete Sections Under Biaxial Loading

Author(s): M. Kawakami, H. Tokuda, M. Kagaya, and M. Hirata

Publication: Journal Proceedings

Volume: 82

Issue: 2

Appears on pages(s): 203-212

Keywords: axial loads; beams (supports); bending; biaxial loads; cracking(fracturing); microcomputers; prestressed concrete; strength; stress-strain rela-tionships.

DOI: 10.14359/10329

Date: 3/1/1985

This paper describes a theoretical and experimental study on limit states of cracking and ultimate strength of arbitrary reinforced and prestressed concrete sections subjected to biaxial loading. Applying this theory to practical structures, an arbitrary concrete section is analyzed and the stress-strain relationships for concrete, reinforcing steel, and prestressing steel are the combination of a second degree parabola and a trapezoid shape, perfect elastic-plastic, and trilinear, respectively. A prestressed concrete beam test was carried out to confirm the analyzed results. From this study, by giving dimensions of the cross section and physical characteristics of the concrete and steel used, limit states of cracking and ultimate strength can be easily and accurately obtained.


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