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http://dx.doi.org/10.4334/JKCI.2011.23.3.365

Compressive Stress Distribution of Concrete for Performance-Based Design Code  

Lee, Jae-Hoon (Dept. of Civil Engineering, Yeungnam University)
Lim, Kang-Sup (Seoyeong Engineering Co., Ltd.)
Hwang, Do-Kyu (Dept. of Civil Engineering, Yeungnam University)
Publication Information
Journal of the Korea Concrete Institute / v.23, no.3, 2011 , pp. 365-376 More about this Journal
Abstract
The current Concrete Structural Design Code (2007) prescribe the equivalent rectangular stress block of the ACI 318 Building Code as concrete compressive stress distribution for design of concrete structures. The rectangular stress block may be enough for flexural strength calculation, but realistic stress-strain relationship is required for performance verification at selected limit state in performance-based design. Moreover, the ACI rectangular stress block provides non-conservative flexural strength for high strength concrete columns. Therefore a new stress distribution model is required for development of performance-based design code. This paper proposes a concrete compressive stress-strain distribution model for design and performance verification. The proposed model has a parabolic-rectangular shape, which is adopted by Eurocode 2 and Japanese Code (JSCE). It was developed by investigation of experimental test results conducted by the authors and other researchers. The test results cover high strength concrete as well as normal strength concrete. The stress distribution parameters of the proposed models are compared to those of the ACI 318 Building Code, Eurocode 2, Japanese Code (JSCE) and Canadian Code (CSA) as well as the test results.
Keywords
concrete compressive stress; stress-strain relationship; parabolic-rectangular curve; performance-based design;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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