Global buckling and resistances of austenitic stainless steel semi-oval hollow section beam-columns
As advanced manufacturing technologies become increasingly mature in civil engineering, novel tubular sections, characterised by appealing architectural appearance and prominent structural efficiency, can be fabricated, with an example being semi-oval hollow section. The present paper reports an exp...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/179286 |
| _version_ | 1826112961583775744 |
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| author | Li, Shuai Guo, Tong Zhao, Ou |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Li, Shuai Guo, Tong Zhao, Ou |
| author_sort | Li, Shuai |
| collection | NTU |
| description | As advanced manufacturing technologies become increasingly mature in civil engineering, novel tubular sections, characterised by appealing architectural appearance and prominent structural efficiency, can be fabricated, with an example being semi-oval hollow section. The present paper reports an experimental and numerical investigation into the global buckling behaviour and resistances of austenitic stainless steel semi-oval hollow section beam-columns under combined compression and bending. An experimental programme was firstly performed on ten austenitic stainless steel semi-oval hollow section beam-column specimens and included initial geometric imperfection measurements and eccentric compression tests. The obtained test failure loads, load–mid-height lateral deflection curves and failure modes were fully reported. Following the experimental programme, a numerical modelling programme was conducted, including validation studies to validate developed finite element models against the test results and parametric studies to generate additional numerical data. Given that the existing European code and American specification do not cover the design of stainless steel semi-oval hollow section components, the applicability of the codified design interaction curves for austenitic stainless steel circular hollow section beam-columns to their semi-oval hollow section counterparts was evaluated based on the obtained test and numerical data. The European code was found to result in relatively accurate and consistent resistance predictions for austenitic stainless steel semi-oval hollow section beam-columns with Class 1 and 2 cross-sections, but the resistance predictions for those with Class 3 cross-sections were conservative and scattered. The American specification was shown to offer overall accurate and consistent resistance predictions, but some resistance predictions were marginally unsafe. |
| first_indexed | 2024-10-01T03:15:24Z |
| format | Journal Article |
| id | ntu-10356/179286 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:15:24Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1792862024-07-24T08:13:13Z Global buckling and resistances of austenitic stainless steel semi-oval hollow section beam-columns Li, Shuai Guo, Tong Zhao, Ou School of Civil and Environmental Engineering Engineering Austenitic stainless steel Beam-columns As advanced manufacturing technologies become increasingly mature in civil engineering, novel tubular sections, characterised by appealing architectural appearance and prominent structural efficiency, can be fabricated, with an example being semi-oval hollow section. The present paper reports an experimental and numerical investigation into the global buckling behaviour and resistances of austenitic stainless steel semi-oval hollow section beam-columns under combined compression and bending. An experimental programme was firstly performed on ten austenitic stainless steel semi-oval hollow section beam-column specimens and included initial geometric imperfection measurements and eccentric compression tests. The obtained test failure loads, load–mid-height lateral deflection curves and failure modes were fully reported. Following the experimental programme, a numerical modelling programme was conducted, including validation studies to validate developed finite element models against the test results and parametric studies to generate additional numerical data. Given that the existing European code and American specification do not cover the design of stainless steel semi-oval hollow section components, the applicability of the codified design interaction curves for austenitic stainless steel circular hollow section beam-columns to their semi-oval hollow section counterparts was evaluated based on the obtained test and numerical data. The European code was found to result in relatively accurate and consistent resistance predictions for austenitic stainless steel semi-oval hollow section beam-columns with Class 1 and 2 cross-sections, but the resistance predictions for those with Class 3 cross-sections were conservative and scattered. The American specification was shown to offer overall accurate and consistent resistance predictions, but some resistance predictions were marginally unsafe. Ministry of Education (MOE) The research work presented in this paper receives financial supports from the Singapore Ministry of Education Academic Research Fund (AcRF) Tier 1 Grant (Award Number: RG 122/21). 2024-07-24T08:13:13Z 2024-07-24T08:13:13Z 2024 Journal Article Li, S., Guo, T. & Zhao, O. (2024). Global buckling and resistances of austenitic stainless steel semi-oval hollow section beam-columns. Thin-Walled Structures, 199, 111851-. https://dx.doi.org/10.1016/j.tws.2024.111851 0263-8231 https://hdl.handle.net/10356/179286 10.1016/j.tws.2024.111851 2-s2.0-85189744863 199 111851 en RG 122/21 Thin-Walled Structures © 2024 Elsevier Ltd. All rights reserved. |
| spellingShingle | Engineering Austenitic stainless steel Beam-columns Li, Shuai Guo, Tong Zhao, Ou Global buckling and resistances of austenitic stainless steel semi-oval hollow section beam-columns |
| title | Global buckling and resistances of austenitic stainless steel semi-oval hollow section beam-columns |
| title_full | Global buckling and resistances of austenitic stainless steel semi-oval hollow section beam-columns |
| title_fullStr | Global buckling and resistances of austenitic stainless steel semi-oval hollow section beam-columns |
| title_full_unstemmed | Global buckling and resistances of austenitic stainless steel semi-oval hollow section beam-columns |
| title_short | Global buckling and resistances of austenitic stainless steel semi-oval hollow section beam-columns |
| title_sort | global buckling and resistances of austenitic stainless steel semi oval hollow section beam columns |
| topic | Engineering Austenitic stainless steel Beam-columns |
| url | https://hdl.handle.net/10356/179286 |
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