Численное исследование динамической реакции конструкции с фрикционно-маятниковыми опорами
https://doi.org/10.26907/2541-7746.2025.4.675-688
Аннотация
Разработана упрощенная модель фрикционно-маятниковой опоры, применяемой при конечноэлементном расчете конструкции с сейсмоизолированным фундаментом. Упрощенная модель выступает в качестве альтернативы детализированной конечно-элементной модели опоры и описывает движение, совершаемое ползуном, представленным в виде материальной точки с тремя степенями свободы, по поверхности скольжения. Уравнения движения ползуна получены с использованием формализма Лагранжа. Проведено сравнение данной модели с известными аналитическими моделями, прогнозирующими поведение фрикционно-маятниковых опор, преимущественно однонаправленных. Динамическое поведение сейсмоизолированной конструкции и её варианта при отсутствии сейсмоизоляции изучено посредством численных экспериментов с помощью метода конечных элементов. В качестве входных данных использовались акселерограммы, записанные во время землетрясения. Анализ численных данных, характеризующих амплитуду перемещения и ускорения сейсмоизолированной конструкции, показал, что применение сейсмоизоляции значительно снижает риск повреждения конструкций.
Об авторе
Т. Желязов
Национальный институт геофизики, геодезии и географии (НИГГГ), Болгарская академия наук
Болгария
Болгария
Тодор Желязов, PhD, научный сотрудник
София, Болгария
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Рецензия
Для цитирования:
Желязов Т. Численное исследование динамической реакции конструкции с фрикционно-маятниковыми опорами. Ученые записки Казанского университета. Серия Физико-математические науки. 2025;167(4):675-688. https://doi.org/10.26907/2541-7746.2025.4.675-688
For citation:
Zhelyazov T. Numerical analysis of the dynamic response of a structure equipped with friction pendulum bearings. Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki. 2025;167(4):675-688. https://doi.org/10.26907/2541-7746.2025.4.675-688
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