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Open AccessFeature PaperArticle

Estimation of Heating Temperature for Fire-Damaged Concrete Structures Using Adaptive Neuro-Fuzzy Inference System

1
Korea Institute of Civil Engineering & Building Technology (KICT) 182-64 Mado-ro, Mado-myeon, Hwaseong 18544, Gyeonggi Province, Korea
2
Department of Architectural Engineering, University of Seoul 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul 02504, Korea
*
Author to whom correspondence should be addressed.
Materials 2019, 12(23), 3964; https://doi.org/10.3390/ma12233964
Received: 23 October 2019 / Revised: 16 November 2019 / Accepted: 26 November 2019 / Published: 29 November 2019
(This article belongs to the Special Issue Structural Health Monitoring for Civil Engineering Materials)
The structural performance of concrete structures subjected to fire is greatly influenced by the heating temperature. Therefore, an accurate estimation of the heating temperature is of vital importance for deriving a reasonable diagnosis and assessment of fire-damaged concrete structures. In current practice, various heating temperature estimation methods are used, however, each of these estimation methods has limitations in accuracy and faces disadvantages that depend on evaluators’ empirical judgments in the process of deriving diagnostic results from measured data. Therefore, in this study, a concrete heating test and a non-destructive test were carried out to estimate the heating temperatures of fire-damaged concrete, and a heating temperature estimation method using an adaptive neuro-fuzzy inference system (ANFIS) algorithm was proposed based on the results. A total of 73 datasets were randomly extracted from a total of 87 concrete heating test results and we used them in the data training process of the ANFIS algorithm; the remaining 14 datasets were used for verification. The proposed ANFIS algorithm model provided an accurate estimation of heating temperature. View Full-Text
Keywords: ANFIS; concrete; fire; fuzzy; heating temperature; membership function ANFIS; concrete; fire; fuzzy; heating temperature; membership function
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Kang, H.; Cho, H.-C.; Choi, S.-H.; Heo, I.; Kim, H.-Y.; Kim, K.S. Estimation of Heating Temperature for Fire-Damaged Concrete Structures Using Adaptive Neuro-Fuzzy Inference System. Materials 2019, 12, 3964.

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