Structural Optimization of Linear Vibration Isolation Systems

Bakirov, Zhetpisbai; Bakirov, M. Zh.; Tazhenova, Gulzada; Nuguzhinov, Zhmagul

doi:10.7546/jtam.50.20.01.04

JТАМ

2020

DOI: 10.7546/jtam.50.20.01.04

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Structural Optimization of Linear Vibration Isolation Systems

Zhetpisbai Bakirov¹,

M. Zh. Bakirov²,

Gulzada Tazhenova³

et al.

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2023

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“…The circumstances listed above show that the codes of reinforced concrete structures must be brought into line with the principle general nonlinear theory of the calculation of structures (European standard), which will require significant material costs and organizational efforts [51]. However, this is justified, as it facilitates the flow of foreign investment into the country, improving the quality of manufactured materials and structures and objects under construction, which means improving the quality of life of people [52][53][54].…”

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confidence: 99%

Creep of Concrete in Shell Structures: Nonlinear Theory

Mussabayev,

Nuguzhinov,

Nemova

et al. 2023

Materials

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The creep of concrete is one of the main problems threatening concrete structural development and the stability and safety of structures. However, the nonlinear theory is the key to solving the problem of taking into account the physical and mechanical properties of concrete creep in shell structures. To create such a theory, the original shell is replaced by a continuous equivalent elastic shell. To determine the stress–strain state of the structure, the equations of nonlinear creep and crack growth are derived, and a deformation model of the section is created. The behavior of the structure at all stages of the life cycle is investigated by solving the solving systems of differential equations of equilibrium, motion, and perturbation of the equivalent shell. The values of the ratios of dependence of long-term and short-term critical loads on deformations, forces, cracks, etc., are given. The accuracy of the solution of the developed nonlinear theory is compared with the linear theory of concrete creep as well as experimental data. The results show that, according to the linear theory, for the values for the short term and long term, up to 56% and up to 39% of critical loads are overestimated, respectively. The creep process in practical engineering can be effectively controlled by the results of the proposed theory.

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confidence: 99%

Creep of Concrete in Shell Structures: Nonlinear Theory

Mussabayev,

Nuguzhinov,

Nemova

et al. 2023

Materials

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show abstract

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Structural Optimization of Linear Vibration Isolation Systems

Cited by 1 publication

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Creep of Concrete in Shell Structures: Nonlinear Theory

Creep of Concrete in Shell Structures: Nonlinear Theory

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