Fire Resistance of Reinforced Concrete Columns - State-of-the-Art and Research Needs

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Title: Fire Resistance of Reinforced Concrete Columns - State-of-the-Art and Research Needs

Author(s): V.K.R. Kodur and N.K. Raut

Publication: Special Publication

Volume: 255

Issue:

Appears on pages(s): 97-124

Keywords: fire resistance; high temperature; literature review; reinforced concrete columns

Date: 10/1/2008

Abstract:
This paper presents the state-of-the-art review and research needs assessment of the fire performance of reinforced concrete (RC) columns. The literature review revealed that almost all of the fire tests have been undertaken on RC columns under standard fire scenarios and were narrow in scope due to limitations in test equipment and loading capacities. There have been limited analytical studies on modeling the fire behavior of RC columns and were mainly based on elemental approach and either neglected spalling or used a very simple and crude model for representing spalling. Most of the current provisions, in codes and standards, for evaluating fire resistance are based on prescriptive approaches and do not include significant parameters that affect fire resistance. Based on this comprehensive review, research needs for developing rational fire design methods for RC columns through a performance-based approach, is highlighted.