Features of assessing the condition and behavior of low-water bridges
The article describes features of operation and monitoring of low-water bridges, which are found on highways of regional, intermunicipal and local importance. Vibrations of the bridge span are considered in detail, taking into account its interaction with other structural elements and the environmen...
| 主要な著者: | , , |
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| フォーマット: | 論文 |
| 言語: | Russian |
| 出版事項: |
Joint Stock Company «Railway Scientific and Research Institute»
2021-12-01
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| シリーズ: | Вестник Научно-исследовательского института железнодорожного транспорта |
| 主題: | |
| オンライン･アクセス: | https://www.journal-vniizht.ru/jour/article/view/545 |
| _version_ | 1826572543659606016 |
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| author | A. A. Loktev V. V. Korolev I. V. Shishkina |
| author_facet | A. A. Loktev V. V. Korolev I. V. Shishkina |
| author_sort | A. A. Loktev |
| collection | DOAJ |
| description | The article describes features of operation and monitoring of low-water bridges, which are found on highways of regional, intermunicipal and local importance. Vibrations of the bridge span are considered in detail, taking into account its interaction with other structural elements and the environment. As a characteristic, the change of which takes into account the change in the state of the bridge structure, it is proposed to use the frequency of natural vibrations. To simulate the dynamic effects of transport and the dynamic behavior of individual elements and the entire structure as a whole, it is proposed to use viscoelastic elements of the Kelvin–Voigt type. When solving the problem, an approach has been implemented that makes it possible to take into account the anisotropic properties of the superstructure associated with various reinforcement along and across the roadway of the bridge, and to present the design scheme of the span not in the form of a beam supported at the edges with the help of hinges or viscoelastic dampers, but in the form of a plate, which can have different fxing conditions along the entire contour. The use of the proposed model and approach will make it possible to obtain the necessary data on the state of low-water bridges, for which there is often no possibility of visual inspection or instrumental inspection from the lower side of the bearing part of the superstructure. By the values of the frequency of natural vibrations, it is possible to estimate the water level above the low-water period and predict food situations, during which the roadway of the low-water bridge may be fooded. |
| first_indexed | 2024-04-10T00:55:53Z |
| format | Article |
| id | doaj.art-0fb5f515307d475289f452f6a389a082 |
| institution | Directory Open Access Journal |
| issn | 2223-9731 2713-2560 |
| language | Russian |
| last_indexed | 2025-03-14T12:28:41Z |
| publishDate | 2021-12-01 |
| publisher | Joint Stock Company «Railway Scientific and Research Institute» |
| record_format | Article |
| series | Вестник Научно-исследовательского института железнодорожного транспорта |
| spelling | doaj.art-0fb5f515307d475289f452f6a389a0822025-03-02T09:26:49ZrusJoint Stock Company «Railway Scientific and Research Institute»Вестник Научно-исследовательского института железнодорожного транспорта2223-97312713-25602021-12-0180633434210.21780/2223-9731-2021-80-6-334-342359Features of assessing the condition and behavior of low-water bridgesA. A. Loktev0V. V. Korolev1I. V. Shishkina2Федеральное государственное автономное образовательное учреждение высшего образования «Российский университет транспорта» (ФГАОУ ВО «РУТ» (МИИТ)Федеральное государственное автономное образовательное учреждение высшего образования «Российский университет транспорта» (ФГАОУ ВО «РУТ» (МИИТ)Федеральное государственное автономное образовательное учреждение высшего образования «Российский университет транспорта» (ФГАОУ ВО «РУТ» (МИИТ)The article describes features of operation and monitoring of low-water bridges, which are found on highways of regional, intermunicipal and local importance. Vibrations of the bridge span are considered in detail, taking into account its interaction with other structural elements and the environment. As a characteristic, the change of which takes into account the change in the state of the bridge structure, it is proposed to use the frequency of natural vibrations. To simulate the dynamic effects of transport and the dynamic behavior of individual elements and the entire structure as a whole, it is proposed to use viscoelastic elements of the Kelvin–Voigt type. When solving the problem, an approach has been implemented that makes it possible to take into account the anisotropic properties of the superstructure associated with various reinforcement along and across the roadway of the bridge, and to present the design scheme of the span not in the form of a beam supported at the edges with the help of hinges or viscoelastic dampers, but in the form of a plate, which can have different fxing conditions along the entire contour. The use of the proposed model and approach will make it possible to obtain the necessary data on the state of low-water bridges, for which there is often no possibility of visual inspection or instrumental inspection from the lower side of the bearing part of the superstructure. By the values of the frequency of natural vibrations, it is possible to estimate the water level above the low-water period and predict food situations, during which the roadway of the low-water bridge may be fooded.https://www.journal-vniizht.ru/jour/article/view/545automobile roadslow-water bridgespanvibration frequencyviscoelastic elementsmonitoringdefects |
| spellingShingle | A. A. Loktev V. V. Korolev I. V. Shishkina Features of assessing the condition and behavior of low-water bridges Вестник Научно-исследовательского института железнодорожного транспорта automobile roads low-water bridge span vibration frequency viscoelastic elements monitoring defects |
| title | Features of assessing the condition and behavior of low-water bridges |
| title_full | Features of assessing the condition and behavior of low-water bridges |
| title_fullStr | Features of assessing the condition and behavior of low-water bridges |
| title_full_unstemmed | Features of assessing the condition and behavior of low-water bridges |
| title_short | Features of assessing the condition and behavior of low-water bridges |
| title_sort | features of assessing the condition and behavior of low water bridges |
| topic | automobile roads low-water bridge span vibration frequency viscoelastic elements monitoring defects |
| url | https://www.journal-vniizht.ru/jour/article/view/545 |
| work_keys_str_mv | AT aaloktev featuresofassessingtheconditionandbehavioroflowwaterbridges AT vvkorolev featuresofassessingtheconditionandbehavioroflowwaterbridges AT ivshishkina featuresofassessingtheconditionandbehavioroflowwaterbridges |