5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

Ninth International Conference on Advances in Steel Structures (ICASS 2018)


EXPERIMENTAL STUDY AND THEORETIC ANALYSIS ON FIRE RESISTANCE OF ANGLE STEEL STRENGTHENED REINFORCED CONCRETE COLUMNS

 

Xiao-Yong Mao*, Li-Ren Zhou and Zhen Zhang

Department of Civil Engineering, Suzhou University of Science and Technology, Suzhou, China

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DOI:10.18057/ICASS2018.P.099

ABSTRACT:

Experiments on fire resistance of four angle steel strengthened reinforced concrete (ASSRC) columns under ISO834 standard fire were carried out. Failure mode, deflection and fire resistance of the columns were presented. Thermo-structure coupling analysis model was built up considering the spalling of the mortar fire insulation, which was validated by the test data. Then the validated model was used to analyze the effect of load level, eccentricity ratio, fire protection thickness and increasing coefficient of carrying capacity on fire behavior of ASSRC column. The results showed that, epoxy resin reached its failure temperature and lost mechanical strength with the spalling of mortar insulation in a short time, leading to a poor fire behavior of ASSRC columns. With the increasing of load level, eccentricity ratio and coefficient of carrying capacity, fire resistance of ASSRC columns decreases, in which, the load level has a notable influence. Thicker fire protection of mortar can retard the heat transmission process, corresponding to a better fire resistance.

Keywords:

Angle Steel Strengthening; Fire Resistance; RC Columns; Thermo-Structure Coupling Analysis

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IMPORTANT DATES

First call for paper:
1 January 2018
Abstract submission: (CLOSED)
1 April 2018
Notification of abstract acceptance:
on or before 16 April 2018 
Full paper submission: 
15 July 2018
Online Registration Begins:
1 August 2018
Notification of full paper acceptance:
31 August 2018
Early bird registration:
on or before 7 September 2018
Online Registration Closes:
31 October 2018
Announcement of programme:
1 November 2018
ICASS2018 December 05, 2018 08:00 AM Time's Up