Evaluation Spalling Phenomenon Due to Elevated Temperature Effect on High Strength Concrete Segments

Authors

1 PhD in Structural Engineering

2 Civil Engineering Department, Faculty of Engineering, University of Qom, Qom, Iran

Abstract

In today`s world using of high strength concrete (HSC) in the building industry is growing up and this type of concrete will play an important role in future civil design. So must be known and evaluated the behavior of HSC components against various environmental phenomena including applying heat. Most researches in applying heat effect on concrete elements are experimental and under this situation and analytical or numerical researches in this issue are low. This paper presents an analytical model using ABAQUS software based on the finite element to evaluating HSC elements behavior under applying heat condition, by using USDFLD, UMESHMOTION subroutines, in soils analysis of ABAQUS software evaluated spalling phenomenon. Results show that one relation between heating rate and initial spalling time. furthermore, according to result data, concrete elements that are made from HSC with 80MPa compression strength more spalling exposure than other HSC at high temperature due to high permeability decreasing rate and initial spalling speed in this type of HSC is rather than others so that extends to the duplicate of other HSC.

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Journal of Civil and Environmental Engineering

Articles in Press, Accepted Manuscript
Available Online from 15 April 2023

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