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http://dx.doi.org/10.4334/JKCI.2012.24.5.567

Heat Transfer Analysis and Experiments of Reinforced Concrete Slabs Using Galerkin Finite Element Method  

Han, Byung-Chan (Dept. of Architectural Engineering, Woosong College)
Kim, Yun-Yong (Dept. of Civil and Environmental Engineering, Chungnam University)
Kwon, Young-Jin (Dept. of Emergency Management Engineering, Hoseo University)
Cho, Chang-Geun (School of Architecture, Chosun University)
Publication Information
Journal of the Korea Concrete Institute / v.24, no.5, 2012 , pp. 567-575 More about this Journal
Abstract
A research was conducted to develop a 2-D nonlinear Galerkin finite element analysis of reinforced concrete structures subjected to high temperature with experiments. Algorithms for calculating the closed-form element stiffness for a triangular element with a fully populated material conductance are developed. The validity of the numerical model used in the program is established by comparing the prediction from the computer program with results from full-scale fire resistance tests. Details of fire resistance experiments carried out on reinforced concrete slabs, together with results, are presented. The results obtained from experimental test indicated in that the proposed numerical model and the implemented codes are accurate and reliable. The changes in thermal parameters are discussed from the point of view of changes of structure and chemical composition due to the high temperature exposure. The proposed numerical model takes into account time-varying thermal loads, convection and radiation affected heat fluctuation, and temperature-dependent material properties. Although, this study considered standard fire scenario for reinforced concrete slabs, other time versus temperature relationship can be easily incorporated.
Keywords
fire resistance; nonlinear transient heat flow analysis; Galerkin finite element method; reinforced concrete slabs;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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