Experimental tests on structural members fabricated from high strength steel materials
Chan, Tommy H.T. & Tang, Louis R.B. (2009) Experimental tests on structural members fabricated from high strength steel materials. In Proceedings of Sixth International Conference on Advances in Steel Structures ICASS '09, The Hong Kong Institute of Steel Construction, Hong Kong, pp. 726-733.
Typical high strength steels (HSS) have exceptional high strengths with improved weldability making the material attractive in modern steel constructions. However, due to lack of understanding, most of the current steel design standards are limited to conventional low strength steels (LSS, i.e. fy ≤ 450 MPa). This paper presents the details of full-scale experimental tests on short beams fabricated from BISPLATE80 HSS materials (nominal fy = 690 MPa). The various slenderness ratios of the plate elements in the test specimens were chosen in the range near the current yield limit (AS4100-1998, etc.). The experimental studies presented in this paper have produced a better understanding of the structural behaviour of HSS members subjected to local instabilities. Comparisons have also presented in the paper regarding to the design predictions from the current steel standards (AS4100-1998). This study has enabled to provide a series of proposals for proper assessment of plate slenderness limits for structural members made of representative HSS materials. This research work also enables the inclusion of further versions in the steel design specifications for typical HSS materials to be used in buildings and bridges. This paper also presents a distribution model of residual stresses in the longitudinal direction for typical HSS I-sections.
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|Item Type:||Conference Paper|
|Keywords:||Design standard, high strength steel, plate local instability, residual stress distribution, plate slenderness limit, section moment capacity, flexural behaviour|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
|Copyright Owner:||Copyright 2009 The Hong Kong Institute of Steel Construction|
|Deposited On:||27 Apr 2010 01:59|
|Last Modified:||09 Jun 2010 14:27|
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