Influence of the type of numerical model a prestressed concrete bridge on the determination of its internal forces and displacements
Static analyses of bridge structures are currently performed using the finite element method (FEM). Depending on the geometry of the structure and the technically required accuracy of calculations, different levels of discretization of these structures are used in their design. In the design process...
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2024-03-01
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| Series: | Archives of Civil Engineering |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/130766/ACE_2024_01_09.pdf |
| _version_ | 1797234826889134080 |
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| author | Radosław Oleszek Wojciech Radomski Krzysztof Nowak |
| author_facet | Radosław Oleszek Wojciech Radomski Krzysztof Nowak |
| author_sort | Radosław Oleszek |
| collection | DOAJ |
| description | Static analyses of bridge structures are currently performed using the finite element method (FEM). Depending on the geometry of the structure and the technically required accuracy of calculations, different levels of discretization of these structures are used in their design. In the design process, beam grillage models (denoted e1, p2), shell models (denoted e2, p2) or shell-beam models (denoted e1+ e2, p3) are often used. Solid models (denoted e3+ p3) are mostly used in advanced analyses, having frequently a scientific character. It is shown that there is an impact of the applied types of the numerical model (i.e., degree of complexity, degree of discretization, accuracy of the model) of the road bridge on the calculated values of bending moments and displacements, which indirectly affects the global safety coefficient of the designed bridge structure. The main purpose of the calculations is to examine the discrepancies of analyzed internal forces and displacements depending of the type of numerical model used. The calculated values are referred to the results taken from the field tests of the existing bridge denoted MS 03, which is a continuous beam structure with the three spans 37:50 + 46:75 + 37:50 m made of prestressed concrete and with variable beam depth. On the basis of numerical simulations, the paper provides author’s recommendations for computer modeling of similar bridges. |
| first_indexed | 2024-04-24T16:38:14Z |
| format | Article |
| id | doaj.art-4ebbd197dc894a56bd40c4cc53ff6646 |
| institution | Directory Open Access Journal |
| issn | 1230-2945 2300-3103 |
| language | English |
| last_indexed | 2024-04-24T16:38:14Z |
| publishDate | 2024-03-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Civil Engineering |
| spelling | doaj.art-4ebbd197dc894a56bd40c4cc53ff66462024-03-29T12:12:25ZengPolish Academy of SciencesArchives of Civil Engineering1230-29452300-31032024-03-01No 1155167https://doi.org/10.24425/ace.2024.148905Influence of the type of numerical model a prestressed concrete bridge on the determination of its internal forces and displacementsRadosław Oleszek0https://orcid.org/0000-0002-1036-329XWojciech Radomski1https://orcid.org/0000-0002-3404-6109Krzysztof Nowak2https://orcid.org/0000-0001-8892-3050Warsaw University of Technology, Faculty of Civil Engineering, Al. Armii Ludowej 16, 00-637 Warsaw, PolandWarsaw University of Technology, Faculty of Civil Engineering, Al. Armii Ludowej 16, 00-637 Warsaw, PolandWarsaw University of Technology, Faculty of Civil Engineering, Al. Armii Ludowej 16, 00-637 Warsaw, PolandStatic analyses of bridge structures are currently performed using the finite element method (FEM). Depending on the geometry of the structure and the technically required accuracy of calculations, different levels of discretization of these structures are used in their design. In the design process, beam grillage models (denoted e1, p2), shell models (denoted e2, p2) or shell-beam models (denoted e1+ e2, p3) are often used. Solid models (denoted e3+ p3) are mostly used in advanced analyses, having frequently a scientific character. It is shown that there is an impact of the applied types of the numerical model (i.e., degree of complexity, degree of discretization, accuracy of the model) of the road bridge on the calculated values of bending moments and displacements, which indirectly affects the global safety coefficient of the designed bridge structure. The main purpose of the calculations is to examine the discrepancies of analyzed internal forces and displacements depending of the type of numerical model used. The calculated values are referred to the results taken from the field tests of the existing bridge denoted MS 03, which is a continuous beam structure with the three spans 37:50 + 46:75 + 37:50 m made of prestressed concrete and with variable beam depth. On the basis of numerical simulations, the paper provides author’s recommendations for computer modeling of similar bridges.https://journals.pan.pl/Content/130766/ACE_2024_01_09.pdfnumerical modelsprestressed concrete bridgescomputer analysis of superstructuretransverse distribution of load |
| spellingShingle | Radosław Oleszek Wojciech Radomski Krzysztof Nowak Influence of the type of numerical model a prestressed concrete bridge on the determination of its internal forces and displacements Archives of Civil Engineering numerical models prestressed concrete bridges computer analysis of superstructure transverse distribution of load |
| title | Influence of the type of numerical model a prestressed concrete bridge on the determination of its internal forces and displacements |
| title_full | Influence of the type of numerical model a prestressed concrete bridge on the determination of its internal forces and displacements |
| title_fullStr | Influence of the type of numerical model a prestressed concrete bridge on the determination of its internal forces and displacements |
| title_full_unstemmed | Influence of the type of numerical model a prestressed concrete bridge on the determination of its internal forces and displacements |
| title_short | Influence of the type of numerical model a prestressed concrete bridge on the determination of its internal forces and displacements |
| title_sort | influence of the type of numerical model a prestressed concrete bridge on the determination of its internal forces and displacements |
| topic | numerical models prestressed concrete bridges computer analysis of superstructure transverse distribution of load |
| url | https://journals.pan.pl/Content/130766/ACE_2024_01_09.pdf |
| work_keys_str_mv | AT radosławoleszek influenceofthetypeofnumericalmodelaprestressedconcretebridgeonthedeterminationofitsinternalforcesanddisplacements AT wojciechradomski influenceofthetypeofnumericalmodelaprestressedconcretebridgeonthedeterminationofitsinternalforcesanddisplacements AT krzysztofnowak influenceofthetypeofnumericalmodelaprestressedconcretebridgeonthedeterminationofitsinternalforcesanddisplacements |