5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

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


Experiment on Fire Resistance of Axial Compression Rec-section High Strength Steel Columns

 

Runmin Ding 1, Shenggang Fan 1* and Yunlong Han 1, Yang Guo 1, Bingbing He 2

1 Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, School of Civil Engineering, Southeast University, Sipailou #2, Zip: 210096, Nanjing, China.

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2 East China Architectural Design & Research Institute, Shanghai, China

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DOI:10.18057/ICASS2018.P.133

ABSTRACT:

To investigate the behavioral responses and failure mechanism of axially compressed Q550 high-strength steel rectangular-section columns in fire, a series of tests were carried out including 4 mechanical property test coupons at normal temperature, 18 mechanical property test coupons at high-temperature and 8 specimens of axially compressed Q550 high-strength steel rec-section columns without constraint. Six influencing parameters, including cross-sectional area A, width-to-thickness ratio B/t, initial bending amplitude e0, slenderness ratio λ, load ratio n, width-to-thickness ratio H/B, on the fire resistance of Q550 high-strength steel axially compressed rectangular columns were parametrically analyzed by using exact finite element model. The furnace temperature-time curves, the surface temperature-time curves, the axial displacement-time curves, the mid-span lateral displacement-time curves, the critical temperatures and the maximum axial displacements of specimens were obtained. The test results show that the load ratio n is the key factor determining the critical temperature of axially compressed high-strength steel columns.

Keywords:

High strength steel; Fire resistance; Axially compressed; Critical temperature; Parameter 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