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http://dx.doi.org/10.4334/JKCI.2016.28.5.581

A Study on Applicability of Tensile Constitutive Model of Steel Fiber Reinforced Concrete in Model Code 2010  

Yeo, Dong-Jin (Department of Civil Engineering, Kyung-Sung Univ)
Kang, Duk-Man (Graduate School of Railway, Seoul National University of Science & Technology)
Lee, Myung-Seok (Graduate School of Railway, Seoul National University of Science & Technology)
Moon, Do-Young (Department of Civil Engineering, Kyung-Sung Univ)
Publication Information
Journal of the Korea Concrete Institute / v.28, no.5, 2016 , pp. 581-592 More about this Journal
Abstract
Tensile constitutive stress-strain model of steel fiber reinforced concrete (SFRC) in fib MC2010 was investigated. In order to model tensile behavior of SFRC, three point loading flexural tests were conducted on notched small beams according to BE-EN-14651. Design parameters for the constitutive model were determined from the flexural tests. Flexural test and finite element analysis were conducted on large SFRC beam without steel reinforcements and compared with each other. In addition, parametric study on the effect of compressive and tensile model, and characteristic length on flexural behavior of the SFRC beam was conducted also. In results, pre-peak load-displacement curves from the FE analysis was close to experimental curves but significant difference was shown in post-peak behavior. The reason of the difference is originated from the fact that the fiber distribution and orientation were not being properly considered in the MC2010 model. This study shows that modification and detail explanations on the orientation factor K in MC2010 might require to better reproduce the behaviour of large scale SFRC beams.
Keywords
SFRC; beam; flexural capacity; MC2010; fiber orientation factors;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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