The Library
Stability design of stainless steel structures
Tools
Walport, Fiona, Kucukler, Merih and Gardner, Leroy (2022) Stability design of stainless steel structures. Journal of Structural Engineering, 148 (1). 04021225. doi:10.1061/(ASCE)ST.1943-541X.0003165 ISSN 0733-9445.
|
PDF
WRAP-Stability-design-stainless-steel-structures-2021.pdf - Accepted Version - Requires a PDF viewer. Download (1266Kb) | Preview |
Official URL: https://doi.org/10.1061/(ASCE)ST.1943-541X.0003165
Abstract
The direct analysis method (DAM), featuring second-order elastic analysis with two stiffness reduction factors (τb and τg), is the primary means of stability design for steel structures in AISC 360 and AISI S100. The equivalent provisions for stainless steel structures, which are due to be incorporated into the upcoming AISC 370 and ASCE-8 specifications, are developed in this paper. Stainless steel exhibits a rounded stress–strain response, typically described by the Ramberg–Osgood formulation. The slope of this function (i.e., the tangent modulus), adjusted to consider the influence of residual stresses, is used to define the stiffness reduction factor τb at a given axial load level to be applied to members in compression to allow for the adverse influence of the spread of plasticity and residual stresses. The dependency of the degree of stiffness reduction on the roundedness of the stress–strain curve, which varies between the different grades of stainless steel is also directly captured through the strain hardening exponent n that features in the Ramberg–Osgood formulation. Values of 0.7 for AISC 370 and 0.9 for ASCE-8 are proposed for the general stiffness reduction factor τg to be applied to all member stiffnesses to account for the development and spread of plasticity, and to ensure a suitable reduction in stiffness for slender members with low axial load levels. The different τg values between the two specifications are required to reflect the different buckling curves and axial-bending interaction expressions employed. The accuracy of the proposed method for the design of stainless steel members and frames is assessed through comparisons with benchmark shell finite-element results. Comparisons are also made against the new provisions in AISC 370 for design by second-order inelastic analysis. The reliability of the design proposals is demonstrated through statistical analyses, where it is shown that a resistance factor ϕ of 0.9 can be adopted.
Item Type: | Journal Article | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | ||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||||
Library of Congress Subject Headings (LCSH): | Structural design, Steel, Structural -- Design and construction, Stainless steel -- Fatigue, Buckling (Mechanics) , Structural failures , Strains and stresses | ||||||||||
Journal or Publication Title: | Journal of Structural Engineering | ||||||||||
Publisher: | American Society of Civil Engineers | ||||||||||
ISSN: | 0733-9445 | ||||||||||
Official Date: | January 2022 | ||||||||||
Dates: |
|
||||||||||
Volume: | 148 | ||||||||||
Number: | 1 | ||||||||||
Article Number: | 04021225 | ||||||||||
DOI: | 10.1061/(ASCE)ST.1943-541X.0003165 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Reuse Statement (publisher, data, author rights): | "This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers. This material may be found at https://ascelibrary.org/doi/pdf/10.1061/%28ASCE%29ST.1943-541X.0003165” | ||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||
Copyright Holders: | © 2021 American Society of Civil Engineers | ||||||||||
Date of first compliant deposit: | 19 October 2021 | ||||||||||
Date of first compliant Open Access: | 20 October 2021 | ||||||||||
RIOXX Funder/Project Grant: |
|
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |
Downloads
Downloads per month over past year