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Spalling Analysis of High-Strength Reinforced Concrete Columns under High Temperature  

Shin, Sung-Woo (한양대학교 건축학부)
Yoo, Suk-Hyeong (한양대학교 BK21)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.11, no.6, 2007 , pp. 193-200 More about this Journal
Abstract
The spalling analysis of high strength concrete columns needs a very complex and difficult process accounting for peeling of cover concrete as well as thermal, thermo-stress and hygro-transfer phenomena. However, the study on the spalling analysis method is insufficient. The practical spalling analysis algorithm is developed in this study, which formulates a vapor pressure equation as the parameter of temperature and cover depth and uses the compatibility condition In results of the spalling analysis, as the concrete strength increases and the content of PP fiber decreases the degree of spalling increases. This shows a similar result as the previous experimental study. Therefore the developed algorithm suggested in this study is expected to be useful in predicting the spalling of high strength concrete columns.
Keywords
Spalling analysis; Fire resistance; High-strength concrete; Polypropylene fiber;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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