Dynamics of a Slab in the Roof of a Buried Structure When the Stiffness of its Supports is Varied
https://doi.org/10.22227/2949-1622.2024.4.14-23
Abstract
An approach to the assessment of the dynamic behaviour of the floor slab of a buried structure is proposed. The estimation of the limiting dynamic load at changing the stiffness of the slab support nodes is performed. The design of supports in the form of crumpled inserts made of electric-welded steel pipe is considered. When building the fibre concrete model, volumetric finite elements were used, coupling with reinforcement was taken into account by using interpolation elements, steel reinforcement was represented as an ideal elastoplastic body. The impulsive impact was represented as a multiplication of a constant and a series of time-varying unit functions. The effect of the presence of damping supports in the perception of dynamic impact with the direction of propagation across the span of the slab was analysed. The results of the research can be used in the design of coverings of buried buildings and structures.
About the Author
A. V. Alekseytsev
Moscow State University of Civil Engineering (National Research University) (MGSU)
Russian Federation
Russian Federation
Anatoly V. Alekseytsev, Doctor of Technical Sciences, Associate Professor, Associate Professor of the Department of Reinforced Concrete and Masonry Structures
26 Yaroslavskoe shosse, Moscow, 129337
Scopus: 57191530761, ResearcherID: I-3663-2017
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Review
For citations:
Alekseytsev A.V. Dynamics of a Slab in the Roof of a Buried Structure When the Stiffness of its Supports is Varied. Reinforced concrete structures. 2024;8(4):14-23. (In Russ.) https://doi.org/10.22227/2949-1622.2024.4.14-23
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