Uncertainty in Resistance Models for Steel Members
Resistance of steel structures is primarily dependent on material properties, geometry and uncertainties related to an applied model. While materials and geometry can be relatively well described, the uncertainties in resistance models are not yet well understood. In many cases significant efforts a...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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VŠB-Technical University of Ostrava, Faculty of Civil Engineering
2014-12-01
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| Series: | Transactions of the VŠB: Technical University of Ostrava, Civil Engineering Series |
| Subjects: | |
| Online Access: | http://www.degruyter.com/view/j/tvsb.2014.14.issue-2/tvsb-2014-0028/tvsb-2014-0028.xml?format=INT |
| _version_ | 1797817241160384512 |
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| author | Nadolski Vitali Sykora Miroslav |
| author_facet | Nadolski Vitali Sykora Miroslav |
| author_sort | Nadolski Vitali |
| collection | DOAJ |
| description | Resistance of steel structures is primarily dependent on material properties, geometry and uncertainties related to an applied model. While materials and geometry can be relatively well described, the uncertainties in resistance models are not yet well understood. In many cases significant efforts are spent to improve resistance models and reduce uncertainty associated with outcomes of the model. However, these achievements are then inadequately reflected in the values of partial factors. That is why the present paper clarifies a model uncertainty and its quantification. Initially a general concept of the model uncertainty is proposed. Influences affecting results obtained by tests and models and influences of actual structural conditions are overviewed. Statistical characteristics of the uncertainties in resistance of steel members are then provided. Simple engineering formulas, mostly based on the EN 1993-1-1 models, are taken into account. To facilitate practical applications, the partial factors for the model uncertainties are derived using a semiprobabilistic approach. |
| first_indexed | 2024-03-13T08:50:22Z |
| format | Article |
| id | doaj.art-a127dfc262fc405ba8daedc6436e7f5f |
| institution | Directory Open Access Journal |
| issn | 1804-4824 |
| language | English |
| last_indexed | 2024-03-13T08:50:22Z |
| publishDate | 2014-12-01 |
| publisher | VŠB-Technical University of Ostrava, Faculty of Civil Engineering |
| record_format | Article |
| series | Transactions of the VŠB: Technical University of Ostrava, Civil Engineering Series |
| spelling | doaj.art-a127dfc262fc405ba8daedc6436e7f5f2023-05-29T13:15:28ZengVŠB-Technical University of Ostrava, Faculty of Civil EngineeringTransactions of the VŠB: Technical University of Ostrava, Civil Engineering Series1804-48242014-12-01142263710.2478/tvsb-2014-0028tvsb-2014-0028Uncertainty in Resistance Models for Steel MembersNadolski Vitali0Sykora Miroslav1Department of Steel and Timber Structures, Faculty of Civil Engineering, BNTU – Belarusian National Technical University, ave. Nezavisimosty 65, 220013 Minsk, Republic of Belarus, phone: (+375) 259 997 99Department of Structural Reliability, Klokner Institute, Czech Technical University in Prague, Solinova 7, 16608 Prague, Czech RepublicResistance of steel structures is primarily dependent on material properties, geometry and uncertainties related to an applied model. While materials and geometry can be relatively well described, the uncertainties in resistance models are not yet well understood. In many cases significant efforts are spent to improve resistance models and reduce uncertainty associated with outcomes of the model. However, these achievements are then inadequately reflected in the values of partial factors. That is why the present paper clarifies a model uncertainty and its quantification. Initially a general concept of the model uncertainty is proposed. Influences affecting results obtained by tests and models and influences of actual structural conditions are overviewed. Statistical characteristics of the uncertainties in resistance of steel members are then provided. Simple engineering formulas, mostly based on the EN 1993-1-1 models, are taken into account. To facilitate practical applications, the partial factors for the model uncertainties are derived using a semiprobabilistic approach.http://www.degruyter.com/view/j/tvsb.2014.14.issue-2/tvsb-2014-0028/tvsb-2014-0028.xml?format=INTModel uncertaintysteel structurespartial factorreliabilityresistance |
| spellingShingle | Nadolski Vitali Sykora Miroslav Uncertainty in Resistance Models for Steel Members Transactions of the VŠB: Technical University of Ostrava, Civil Engineering Series Model uncertainty steel structures partial factor reliability resistance |
| title | Uncertainty in Resistance Models for Steel Members |
| title_full | Uncertainty in Resistance Models for Steel Members |
| title_fullStr | Uncertainty in Resistance Models for Steel Members |
| title_full_unstemmed | Uncertainty in Resistance Models for Steel Members |
| title_short | Uncertainty in Resistance Models for Steel Members |
| title_sort | uncertainty in resistance models for steel members |
| topic | Model uncertainty steel structures partial factor reliability resistance |
| url | http://www.degruyter.com/view/j/tvsb.2014.14.issue-2/tvsb-2014-0028/tvsb-2014-0028.xml?format=INT |
| work_keys_str_mv | AT nadolskivitali uncertaintyinresistancemodelsforsteelmembers AT sykoramiroslav uncertaintyinresistancemodelsforsteelmembers |