Real Geometrical Imperfection of Bow-String Arches—Measurement and Global Analysis
In order to analyse the buckling behaviour of existing bow-string arch bridges, it is necessary to deal with the imperfections that influence the global stability of their superstructures. Direct quantification of the material imperfections represents an extremely difficult task for this type of str...
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MDPI AG
2020-06-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/13/4530 |
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| author | Jaroslav Odrobiňák Matúš Farbák Jakub Chromčák Ján Kortiš Jozef Gocál |
| author_facet | Jaroslav Odrobiňák Matúš Farbák Jakub Chromčák Ján Kortiš Jozef Gocál |
| author_sort | Jaroslav Odrobiňák |
| collection | DOAJ |
| description | In order to analyse the buckling behaviour of existing bow-string arch bridges, it is necessary to deal with the imperfections that influence the global stability of their superstructures. Direct quantification of the material imperfections represents an extremely difficult task for this type of structure. On the other hand, the geometrical imperfections can be measured in more detail by using special scanners or high-accuracy surveying instruments. This contribution represents a beginning part of the research activities focusing on the real values of geometric imperfections of existing steel arch bridges using three-dimensional (3D) scanning. The possibility of using these data for further theoretical and numerical analysis based on the finite element method (FEM) and for further creating the building information modelling (BIM) of the bridges is proposed. When verifying the stability of bow-string arch bridges, much higher attention has to be paid to the out-of-plane stability of the arches. The numerical models of an existing bridge superstructure were developed to execute a nonlinear analysis with geometrical imperfections included. Both the theoretical and actual imperfections obtained by 3D scanning were taken into account. The obtained data, their comparison and the applicability of the presented method are finally discussed. |
| first_indexed | 2024-03-10T18:48:33Z |
| format | Article |
| id | doaj.art-98d285d6e7644a24a5decb82134529ec |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T18:48:33Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-98d285d6e7644a24a5decb82134529ec2023-11-20T05:21:58ZengMDPI AGApplied Sciences2076-34172020-06-011013453010.3390/app10134530Real Geometrical Imperfection of Bow-String Arches—Measurement and Global AnalysisJaroslav Odrobiňák0Matúš Farbák1Jakub Chromčák2Ján Kortiš3Jozef Gocál4Department of Structures and Bridges, Faculty of Civil Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, SlovakiaDepartment of Structures and Bridges, Faculty of Civil Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, SlovakiaDepartment of Geodesy, Faculty of Civil Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, SlovakiaDepartment of Structural Mechanics and Applied Mathematics, Faculty of Civil Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, SlovakiaDepartment of Structures and Bridges, Faculty of Civil Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, SlovakiaIn order to analyse the buckling behaviour of existing bow-string arch bridges, it is necessary to deal with the imperfections that influence the global stability of their superstructures. Direct quantification of the material imperfections represents an extremely difficult task for this type of structure. On the other hand, the geometrical imperfections can be measured in more detail by using special scanners or high-accuracy surveying instruments. This contribution represents a beginning part of the research activities focusing on the real values of geometric imperfections of existing steel arch bridges using three-dimensional (3D) scanning. The possibility of using these data for further theoretical and numerical analysis based on the finite element method (FEM) and for further creating the building information modelling (BIM) of the bridges is proposed. When verifying the stability of bow-string arch bridges, much higher attention has to be paid to the out-of-plane stability of the arches. The numerical models of an existing bridge superstructure were developed to execute a nonlinear analysis with geometrical imperfections included. Both the theoretical and actual imperfections obtained by 3D scanning were taken into account. The obtained data, their comparison and the applicability of the presented method are finally discussed.https://www.mdpi.com/2076-3417/10/13/4530bow-string archout-of-plane stabilitygeometrical imperfection3D scanningFEM analysis |
| spellingShingle | Jaroslav Odrobiňák Matúš Farbák Jakub Chromčák Ján Kortiš Jozef Gocál Real Geometrical Imperfection of Bow-String Arches—Measurement and Global Analysis Applied Sciences bow-string arch out-of-plane stability geometrical imperfection 3D scanning FEM analysis |
| title | Real Geometrical Imperfection of Bow-String Arches—Measurement and Global Analysis |
| title_full | Real Geometrical Imperfection of Bow-String Arches—Measurement and Global Analysis |
| title_fullStr | Real Geometrical Imperfection of Bow-String Arches—Measurement and Global Analysis |
| title_full_unstemmed | Real Geometrical Imperfection of Bow-String Arches—Measurement and Global Analysis |
| title_short | Real Geometrical Imperfection of Bow-String Arches—Measurement and Global Analysis |
| title_sort | real geometrical imperfection of bow string arches measurement and global analysis |
| topic | bow-string arch out-of-plane stability geometrical imperfection 3D scanning FEM analysis |
| url | https://www.mdpi.com/2076-3417/10/13/4530 |
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