Testing and numerical modelling of S690 high-strength steel welded I-sections in bending
This paper shows a comprehensive experimental and numerical investigation on the material properties and cross-section bending moment capacities of welded I-sections fabricated from grade S690 high-strength steel plates. Performed on six I-sections welded by gas metal arc (GMA) welding, the experime...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2019
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| Online Access: | http://hdl.handle.net/10356/77843 |
| _version_ | 1826126787250225152 |
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| author | Chan, Yan Xin |
| author2 | Zhao Ou |
| author_facet | Zhao Ou Chan, Yan Xin |
| author_sort | Chan, Yan Xin |
| collection | NTU |
| description | This paper shows a comprehensive experimental and numerical investigation on the material properties and cross-section bending moment capacities of welded I-sections fabricated from grade S690 high-strength steel plates. Performed on six I-sections welded by gas metal arc (GMA) welding, the experimental study included material tensile coupon tests, residual stress measurements, initial local geometric imperfection measurements, and twelve four-point bending tests. A new predictive model for residual stress patterns within S690 welded I-sections was proposed. Following the experimental study, a finite element numerical study was carried out, where the numerically modelled I-section beams were validated based on the experimentally- derived results, and then employed to perform parametric studies, aiming to generate additional numerical data over a larger range of section sizes. The obtained experimental and finite element moment capacities were used to evaluate the accuracy of the slenderness limits and cross-section resistances from the design provisions listed in Eurocode 3, for S690 high-strength steel welded I-sections in bending. The results of the evaluation revealed that the slenderness limits listed in Eurocode 3 are generally accurate for the cross-section classification of S690 welded I-sections, and the established design cross-section resistances in Eurocode 3 were shown to provide conservative and scattered cross-section resistance predictions for S690 high-strength steel welded I-sections. |
| first_indexed | 2024-10-01T06:58:22Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/77843 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:58:22Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/778432023-03-03T17:06:21Z Testing and numerical modelling of S690 high-strength steel welded I-sections in bending Chan, Yan Xin Zhao Ou School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering::Structures and design This paper shows a comprehensive experimental and numerical investigation on the material properties and cross-section bending moment capacities of welded I-sections fabricated from grade S690 high-strength steel plates. Performed on six I-sections welded by gas metal arc (GMA) welding, the experimental study included material tensile coupon tests, residual stress measurements, initial local geometric imperfection measurements, and twelve four-point bending tests. A new predictive model for residual stress patterns within S690 welded I-sections was proposed. Following the experimental study, a finite element numerical study was carried out, where the numerically modelled I-section beams were validated based on the experimentally- derived results, and then employed to perform parametric studies, aiming to generate additional numerical data over a larger range of section sizes. The obtained experimental and finite element moment capacities were used to evaluate the accuracy of the slenderness limits and cross-section resistances from the design provisions listed in Eurocode 3, for S690 high-strength steel welded I-sections in bending. The results of the evaluation revealed that the slenderness limits listed in Eurocode 3 are generally accurate for the cross-section classification of S690 welded I-sections, and the established design cross-section resistances in Eurocode 3 were shown to provide conservative and scattered cross-section resistance predictions for S690 high-strength steel welded I-sections. Bachelor of Engineering (Civil) 2019-06-07T02:32:34Z 2019-06-07T02:32:34Z 2019 Final Year Project (FYP) http://hdl.handle.net/10356/77843 en Nanyang Technological University 48 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Civil engineering::Structures and design Chan, Yan Xin Testing and numerical modelling of S690 high-strength steel welded I-sections in bending |
| title | Testing and numerical modelling of S690 high-strength steel welded I-sections in bending |
| title_full | Testing and numerical modelling of S690 high-strength steel welded I-sections in bending |
| title_fullStr | Testing and numerical modelling of S690 high-strength steel welded I-sections in bending |
| title_full_unstemmed | Testing and numerical modelling of S690 high-strength steel welded I-sections in bending |
| title_short | Testing and numerical modelling of S690 high-strength steel welded I-sections in bending |
| title_sort | testing and numerical modelling of s690 high strength steel welded i sections in bending |
| topic | DRNTU::Engineering::Civil engineering::Structures and design |
| url | http://hdl.handle.net/10356/77843 |
| work_keys_str_mv | AT chanyanxin testingandnumericalmodellingofs690highstrengthsteelweldedisectionsinbending |