Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Testing, simulation and design of press-braked ferritic stainless steel slender channel section columns failing by local–flexural interactive buckling
https://orcid.org/0000-0003-2941-0970
Abstract This paper presents an experimental and numerical study of the local–flexural interactive buckling behaviour and resistances of press-braked ferritic stainless steel slender channel section columns. An experimental programme was firstly conducted, including initial geometric imperfection measurements and ten pin-ended column tests. Interaction between local buckling and flexural buckling was observed for all column specimens upon testing and discussed in detail. The test results were used in a parallel numerical modelling programme to validate finite element models, which were then adopted to perform parametric studies to generate additional numerical data over a wide range of cross-section dimensions and member effective lengths. Based on the test and numerical data, the relevant design rules for press-braked ferritic stainless steel slender channel section columns, as given in the American specification and European code, were evaluated. The evaluation results revealed that the American specification resulted in a good level of design accuracy, while the European code led to conservative and scattered interactive buckling resistance predictions. Finally, a revised Eurocode design method was proposed and shown to yield much more accurate and consistent interactive buckling resistance predictions for press-braked ferritic stainless steel slender channel section columns than its original counterpart.
Highlights The local–flexural interactive buckling of press-braked ferritic stainless steel slender channel section columns was studied. Ten pin-ended column tests were performed, with the progression of local and flexural buckling analysed. FE models were developed to validate against the test results and then used to conduct parametric studies. The American specification and European code were assessed, indicating accuracy and conservatism, respectively. A revised Eurocode design method was proposed, showing a good level of accuracy.
Testing, simulation and design of press-braked ferritic stainless steel slender channel section columns failing by local–flexural interactive buckling
https://orcid.org/0000-0003-2941-0970
Abstract This paper presents an experimental and numerical study of the local–flexural interactive buckling behaviour and resistances of press-braked ferritic stainless steel slender channel section columns. An experimental programme was firstly conducted, including initial geometric imperfection measurements and ten pin-ended column tests. Interaction between local buckling and flexural buckling was observed for all column specimens upon testing and discussed in detail. The test results were used in a parallel numerical modelling programme to validate finite element models, which were then adopted to perform parametric studies to generate additional numerical data over a wide range of cross-section dimensions and member effective lengths. Based on the test and numerical data, the relevant design rules for press-braked ferritic stainless steel slender channel section columns, as given in the American specification and European code, were evaluated. The evaluation results revealed that the American specification resulted in a good level of design accuracy, while the European code led to conservative and scattered interactive buckling resistance predictions. Finally, a revised Eurocode design method was proposed and shown to yield much more accurate and consistent interactive buckling resistance predictions for press-braked ferritic stainless steel slender channel section columns than its original counterpart.
Highlights The local–flexural interactive buckling of press-braked ferritic stainless steel slender channel section columns was studied. Ten pin-ended column tests were performed, with the progression of local and flexural buckling analysed. FE models were developed to validate against the test results and then used to conduct parametric studies. The American specification and European code were assessed, indicating accuracy and conservatism, respectively. A revised Eurocode design method was proposed, showing a good level of accuracy.
Testing, simulation and design of press-braked ferritic stainless steel slender channel section columns failing by local–flexural interactive buckling
https://orcid.org/0000-0003-2941-0970
Abstract This paper presents an experimental and numerical study of the local–flexural interactive buckling behaviour and resistances of press-braked ferritic stainless steel slender channel section columns. An experimental programme was firstly conducted, including initial geometric imperfection measurements and ten pin-ended column tests. Interaction between local buckling and flexural buckling was observed for all column specimens upon testing and discussed in detail. The test results were used in a parallel numerical modelling programme to validate finite element models, which were then adopted to perform parametric studies to generate additional numerical data over a wide range of cross-section dimensions and member effective lengths. Based on the test and numerical data, the relevant design rules for press-braked ferritic stainless steel slender channel section columns, as given in the American specification and European code, were evaluated. The evaluation results revealed that the American specification resulted in a good level of design accuracy, while the European code led to conservative and scattered interactive buckling resistance predictions. Finally, a revised Eurocode design method was proposed and shown to yield much more accurate and consistent interactive buckling resistance predictions for press-braked ferritic stainless steel slender channel section columns than its original counterpart.
Highlights The local–flexural interactive buckling of press-braked ferritic stainless steel slender channel section columns was studied. Ten pin-ended column tests were performed, with the progression of local and flexural buckling analysed. FE models were developed to validate against the test results and then used to conduct parametric studies. The American specification and European code were assessed, indicating accuracy and conservatism, respectively. A revised Eurocode design method was proposed, showing a good level of accuracy.
Testing, simulation and design of press-braked ferritic stainless steel slender channel section columns failing by local–flexural interactive buckling
Thin-Walled Structures ; 185
06.02.2023
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch