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Numerical modeling of structural frames with infills subjected to thermal exposure: State-of-the-art review

Puneet Kumar (Department of Civil and Environmental Engineering, Michigan State University, East Lansing, MI, USA)
Gaurav Srivastava (Department of Civil Engineering, Indian Institute of Technology Gandhinagar, Gujarat, India)

Journal of Structural Fire Engineering

ISSN: 2040-2317

Article publication date: 7 July 2017

Issue publication date: 16 August 2017

434

Abstract

Purpose

Reinforced concrete structural frames with masonry infills (infill-frames) are commonly used for construction worldwide. While the behavior of such frames has been studied extensively in the context of earthquake loading, studies related to their fire performance are limited. Therefore, this study aims to characterize the behavior of infill-frames under fire exposure by presenting a state-of-the-art literature review of the same.

Design/methodology/approach

Both experimental and computational studies have been included with a special emphasis on numerical modeling (simplified as well as advanced). The cold behavior of the infill-frame and its design requirements in case of fire exposure are first reviewed to set the context. Subsequently, the applicability of numerical modeling strategies developed for modeling cold infill-frames to simulate their behavior under fire is critically examined.

Findings

The major hurdles in developing generic numerical models for analyzing thermo-mechanical behavior of infill-frames are identified as: lack of temperature-dependent material properties, scarcity of experimental studies for validation and idealizations in coupling between thermal and structural analysis.

Originality value

This study presents one of the most popular research problems connected with practical and reliable utilization of numerical models, as a good alternative to expensive traditional furnace testing, in assessing fire resistance of infill-frames. It highlights major challenges in thermo-mechanical modeling of infill-frames and critically reviews the available approaches for modeling infill-frames subjected to fire.

Keywords

Citation

Kumar, P. and Srivastava, G. (2017), "Numerical modeling of structural frames with infills subjected to thermal exposure: State-of-the-art review", Journal of Structural Fire Engineering, Vol. 8 No. 3, pp. 218-237. https://doi.org/10.1108/JSFE-05-2017-0031

Publisher

:

Emerald Publishing Limited

Copyright © 2017, Emerald Publishing Limited

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