5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

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


LOCAL BUCKLING STRENGTH OF CORRODED ANGLE AND

CHANNEL STEEL SHAPES AND ITS EVALUATION USING

EFFECTIVE WIDTH THEORY

 

Kazumasa. Hisazumi 1*, Ryoichi. Kanno 2 and Tomonori. Tominaga 3

1 Ph.D. Candidate, Graduate School of Natural Science & Technology, Kanazawa University, Japan

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2 Ph.D., Visiting Professor, Graduate School of Natural Science & Technology, Kanazawa University, Japan

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3 D.Eng., Senior Researcher, Nippon Steel & Sumitomo Metal Corporation, Japan

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DOI:10.18057/ICASS2018.P.002

ABSTRACT:

In recent years, as serious damage to aging steel structures and the related accidents have often been reported, it is imperative to assess the structural health conditions and take necessary measures to sustain the functions of the structures. Under these circumstances, our previous study showed that the global buckling strength of corroded angles and channels could be evaluated by using geometric information given at the section with the smallest area. Also indicated was the fact that when the sectional area loss due to corrosion became larger, the local buckling effect becomes more significant as corrosion proceeds. In this paper, the local buckling behavior and strength of corroded stub columns were studied with FEM analyses using geometric information obtained directly from the corroded members. Through the detailed behavioral observation in the analyses, stress redistribution within the cross sections was also identified even in corroded steel members after the initiation of elastic local buckling. The result indicated that the ultimate strengths of the corroded stub columns were reasonably evaluated by using the minimum effective area based on traditional effective width theory.

Keywords:

Corrosion; Steel members; Local buckling; Numerical analysis; Effective cross-sectional area

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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