Vol. 16, No. 1, pp. 65-76 (2020)
EXPERIMENTAL STUDY ON BEARING CAPACITY OF AUSTENITIC STAINLESS
STEEL LIPPED CHANNEL COLUMNS
Sheng-gang Fan 1, *, Run-min Ding 1, Yun-long Han 2, Mei-he Chen 1, Cheng-liang Liu 3 and Yue-lin Tao 3
1 Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, School of Civil Engineering, Southeast University, Nanjing, China
2 Architectural Design and Rearch Institute Co. Ltd. of Southeast University, Nanjing, China
3 East China Architectural Design & Research Institute Co. Ltd., Shanghai, China
*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 13 August 2019; Revised: 22 January 2020; Accepted: 23 January 2020
DOI:10.18057/IJASC.2020.16.1.8
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ABSTRACT
An experimental program was conducted to study the bearing capacity of austenitic stainless steel lipped channel columns subjected to axial and eccentric compression in this paper. 14 tensile austenitic AISI304 stainless steel tensile coupons were tested to obtain the material properties of the flat and the corner zones of the specimens. The tensile test results show nonlinear stress-strain behaviour with low proportionality limit, anisotropy and strength enhancement because of cold working. To supplement the experimental data on stainless steel lipped channel members, 24 specimens in all were carried out, including 6 axially compressed columns and 18 eccentrically compressed columns. The test specimens were carried out using a specially designed set-up. The test phenomena, stress-strain curves in cross section, load-displacement curves, rotation-displacement curves, and bearing capacity of the columns were obtained. The results were applied to validate the accuracy of the Direct Strength Method (DSM) in current specifications, as well as to evaluate the Effective Width Method (EWM).
KEYWORDS
Bearing capacity, Lipped channel columns, Mechanical properties, Stainless steel, Direct Strength Method
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