The Train-Bridge Coupled Vibration Analysis of a Long-Span Prestressed Concrete Continuous Beam Bridge under Creep Deformation Effect
نویسندگان
چکیده
The track smoothness of high-speed railroads is severely limited to ensure train performance. concrete continuous girder bridge deformed influence the decks and caused by creep bulge. There a need research impact beam on dynamical response operation safety. This paper used Midas software calculate long-term deformation large-span prestressed bridges under shrinkage. train-bridge coupled system was established adopting self-programming software. Thereafter, large-term results main are considered as irregularity input into vibration equation system. safety evaluated calculating dynamic analyzing criteria running It shown that indicators within allowable code values all working conditions. has an displacement acceleration when passes through. no noticeable operational performance trains. Nevertheless, for assessing trains’ operation, such derailment factor, wheel load differences, lateral forces, vehicle acceleration, have been increased.
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ژورنال
عنوان ژورنال: Applied sciences
سال: 2022
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app122211838