The Features of the Deformation Behavior of Reinforced Masonry Structures under Technogenic Impact in Subsided Areas

G. N. Gusev; V. V. Korepanov

doi:10.17804/2410-9908.2024.6.131-142

G. N. Gusev, V. V. Korepanov

THE FEATURES OF THE DEFORMATION BEHAVIOR OF REINFORCED MASONRY STRUCTURES UNDER TECHNOGENIC IMPACT IN SUBSIDED AREAS

DOI: 10.17804/2410-9908.2024.6.131-142

This paper considers the mechanism of the transfer of mining-caused deformations from subsided soil mass to the structural components of reinforced masonry structures (brick buildings). Different models of the behavior of a brick wall and a ground base, as well as variants of their contact interaction, are considered. The limiting strains of the ground are determined for the characteristics specified in the models. The level of strains and their growth in the bearing elements of reinforced masonry structures is shown to be essentially governed by the choice of the type of interaction of the structural elements in the system with the ground base. Curves showing the averaged strain in a brick wall of bonded section for different strength grades as a function of the deformation of the ground base are plotted on the basis of the models.

Acknowledgement: The study was performed under the state assignment, theme registration number 124020700047-3.

Keywords: subsided area, ground base deformation, brick wall, foundation wall block, numerical simulation

References:

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Г. Н. Гусев, В. В. Корепанов

ОСОБЕННОСТИ ДЕФОРМАЦИОННОГО ПОВЕДЕНИЯ АРМОКАМЕННЫХ СООРУЖЕНИЙ В УСЛОВИЯХ ТЕХНОГЕННОГО ВОЗДЕЙСТВИЯ НА ПОДРАБАТЫВАЕМЫХ ТЕРРИТОРИЯХ

В настоящей работе рассмотрен механизм передачи деформаций от подрабатываемого грунтового массива, вызванных влиянием добычи полезных ископаемых, на конструктивные элементы армокаменных сооружений – кирпичных зданий. Рассматриваются различные модели поведения кирпичной стены и грунтового основания, а также варианты их контактного взаимодействия. Определены предельные деформации грунта для заданных характеристик в моделях. Показано, что уровень деформаций и их рост в несущих элементах армокаменных сооружений существенным образом определяется выбором варианта взаимодействия конструктивных элементов в системе с грунтовым основанием. На основе рассмотренных моделей построены зависимости осредненной деформации в кирпичной стене перевязанного сечения для разных марок прочности от деформации грунтового основания.

Ключевые слова: подработанная территория, деформация грунтового основания, кирпичная стена, фундаментный стеновой блок, численное моделирование

Библиография:

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Microplane model for concrete. II: data delocalization and verification / Z. P. Bazant, Y. Xiang, M. D. Adley, P. C. Prat, A. Akers // Journal of Engineering Mechanics. – 1996. – Vol. 122 (3). – P. 255–262. – DOI: 10.1061/(ASCE)0733-9399(1996)122:3(255).
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Kachanov L. M. Introduction to Continuum Damage Mechanics. – Dordrecht : Springer, 1986. – 135 p.
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Valanis K. A. Theory of viscoplasticity without a yield surface. Part 1. General Theory // Archives of Mechanics. – 1971. – Vol. 23. ‑ P. 517–533.
Willam K. J., Warnke E. P. Constitutive model for the triaxial behavior of concrete // International Association for Bridge and Structural Engineering Proceedings. – 1975. – Vol. 19. – P. 1–30.
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СП 15.13330.2020 Каменные и армокаменные конструкции СНиП II-2281.

Библиографическая ссылка на статью

Gusev G. N., Korepanov V. V. The Features of the Deformation Behavior of Reinforced Masonry Structures under Technogenic Impact in Subsided Areas // Diagnostics, Resource and Mechanics of materials and structures. - 2024. - Iss. 6. - P. 131-142. -
DOI: 10.17804/2410-9908.2024.6.131-142. -
URL: http://dream-journal.org/issues/content/article_476.html
(accessed: 21.01.2025).