Numerical analysis of the effects of the bending stiffness of the cable and the mass of structural members on free vibrations of suspension bridges
The article determines natural frequencies of vibration and the corresponding mode shapes of a suspension bridge with the varying bending stiffness of cables and examines variations that occur in these characteristics with respect to parametric changes in the bridge. A single span suspension steel f...
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| Format: | Article |
| Language: | English |
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Vilnius Gediminas Technical University
2015-07-01
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| Series: | Journal of Civil Engineering and Management |
| Subjects: | |
| Online Access: | http://journals.vgtu.lt/index.php/JCEM/article/view/2738 |
| _version_ | 1818386641874583552 |
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| author | Tatjana Grigorjeva |
| author_facet | Tatjana Grigorjeva |
| author_sort | Tatjana Grigorjeva |
| collection | DOAJ |
| description | The article determines natural frequencies of vibration and the corresponding mode shapes of a suspension bridge with the varying bending stiffness of cables and examines variations that occur in these characteristics with respect to parametric changes in the bridge. A single span suspension steel footbridge with flexible cables has been selected as an initial model used for studying the dynamic characteristics of a suspension system. With the help of the finite elements (FE) method, parameter studies of the bridge model are presented in which vibration characteristics are studied as a function of structural and material parameters such as the flexural stiffness of the cable and the mass density of structural components. It has been generally found that the bending stiffness of the main cable contributes to a considerable effect on natural frequencies for this type of the suspension system. A simplified expression of predicting natural bending frequencies of the suspension bridge taking into account the bending stiffness of the cable has been developed for the application as the first step in the design process. |
| first_indexed | 2024-12-14T03:57:17Z |
| format | Article |
| id | doaj.art-a26998871a6d4c1a98122266b47c6be9 |
| institution | Directory Open Access Journal |
| issn | 1392-3730 1822-3605 |
| language | English |
| last_indexed | 2024-12-14T03:57:17Z |
| publishDate | 2015-07-01 |
| publisher | Vilnius Gediminas Technical University |
| record_format | Article |
| series | Journal of Civil Engineering and Management |
| spelling | doaj.art-a26998871a6d4c1a98122266b47c6be92022-12-21T23:18:03ZengVilnius Gediminas Technical UniversityJournal of Civil Engineering and Management1392-37301822-36052015-07-0121710.3846/13923730.2015.1055787Numerical analysis of the effects of the bending stiffness of the cable and the mass of structural members on free vibrations of suspension bridgesTatjana Grigorjeva0Vilnius Gediminas Technical University, Sauletekio al. 11, LT-10223 Vilnius, LithuaniaThe article determines natural frequencies of vibration and the corresponding mode shapes of a suspension bridge with the varying bending stiffness of cables and examines variations that occur in these characteristics with respect to parametric changes in the bridge. A single span suspension steel footbridge with flexible cables has been selected as an initial model used for studying the dynamic characteristics of a suspension system. With the help of the finite elements (FE) method, parameter studies of the bridge model are presented in which vibration characteristics are studied as a function of structural and material parameters such as the flexural stiffness of the cable and the mass density of structural components. It has been generally found that the bending stiffness of the main cable contributes to a considerable effect on natural frequencies for this type of the suspension system. A simplified expression of predicting natural bending frequencies of the suspension bridge taking into account the bending stiffness of the cable has been developed for the application as the first step in the design process.http://journals.vgtu.lt/index.php/JCEM/article/view/2738suspension bridgesbending stiffness of the cablemass of structural membersfree vibrationsfrequencies and mode shapesFE analysis |
| spellingShingle | Tatjana Grigorjeva Numerical analysis of the effects of the bending stiffness of the cable and the mass of structural members on free vibrations of suspension bridges Journal of Civil Engineering and Management suspension bridges bending stiffness of the cable mass of structural members free vibrations frequencies and mode shapes FE analysis |
| title | Numerical analysis of the effects of the bending stiffness of the cable and the mass of structural members on free vibrations of suspension bridges |
| title_full | Numerical analysis of the effects of the bending stiffness of the cable and the mass of structural members on free vibrations of suspension bridges |
| title_fullStr | Numerical analysis of the effects of the bending stiffness of the cable and the mass of structural members on free vibrations of suspension bridges |
| title_full_unstemmed | Numerical analysis of the effects of the bending stiffness of the cable and the mass of structural members on free vibrations of suspension bridges |
| title_short | Numerical analysis of the effects of the bending stiffness of the cable and the mass of structural members on free vibrations of suspension bridges |
| title_sort | numerical analysis of the effects of the bending stiffness of the cable and the mass of structural members on free vibrations of suspension bridges |
| topic | suspension bridges bending stiffness of the cable mass of structural members free vibrations frequencies and mode shapes FE analysis |
| url | http://journals.vgtu.lt/index.php/JCEM/article/view/2738 |
| work_keys_str_mv | AT tatjanagrigorjeva numericalanalysisoftheeffectsofthebendingstiffnessofthecableandthemassofstructuralmembersonfreevibrationsofsuspensionbridges |