Abstract
In this paper, the compressive behavior of concrete-filled stainless steel tubular (CFSST) stub columns has been investigated through an experimental program. A total of 24 specimens, including nine austenitic CFSST, nine duplex CFSST stub columns and six stainless steel tubes of corresponding cross-section size, were tested under axial compression. Load-axial displacement curves, load-strain curves and failure modes were measured during the tests. The results show that all CFSST stub columns fail in the form of waist drum failure mode, and the stainless steel tubes fail in local buckling mode with two sides of steel tube bulging and two sides being concave. The bearing capacity of specimens under axial compression increases with the increase of the thickness of stainless steel tube and the strength of concrete. The test results are compared with the predicted load values by codes BS EN 1994-1-1, ANSI/AISC 360-10, AIJ-CFT 1997, GB 50936-2014 and DBJ 13-51-2003, indicating that the predicted load values by BS EN 1994-1-1 are closest to the test results.
Translated title of the contribution | Experimental study on bearing behavior of concrete-filled square stainless steel tubular stub columns under axial compression |
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Original language | Chinese (Traditional) |
Pages (from-to) | 182-189 |
Number of pages | 8 |
Journal | Jianzhu Jiegou Xuebao/Journal of Building Structures |
Volume | 42 |
Issue number | 6 |
Early online date | 5 Jun 2021 |
DOIs | |
Publication status | Published - 5 Jun 2021 |
Bibliographical note
Publisher Copyright:© 2021, Editorial Office of Journal of Building Structures. All right reserved.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
Keywords
- Axial compression test
- Bearing capacity
- CFSST stub column
- Failure mode
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction