Research of Models, Methods and Means of Assessment  of Technical Condition of Construction Objects in the Conditions  of Loads and Influences of Transport Magistrales

Komandyrov, Oleksii

doi:10.32347/2412-9933.2020.43.104-109

Cited by 1 publication

(2 citation statements)

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“…In this regard, without considering the damping capacity of the tunnel tubing and the upper structure of the metro, it is necessary to expand the frequency range from 20 to 70 Hz (Banakh, 2011b(Banakh, , 2011c. However, Komandyrov (2020) noted in his work that this range should be expanded from 20 to 80 Hz. Simultaneously, it is also necessary to take into account the fact that natural frequencies of buildings, as a rule, can fall into this range, which is especially dangerous.…”

Section: Methodsmentioning

confidence: 98%

“…Scientists conducted experimental studies to determine the amplitudes of vibrations of soil embankments generated by rolling stock with increased axial and linear loads. There also were studies conducted to identify influence zones of dynamic train loads in the subgrade and assess the levels of vertical dynamic loads on the upper structure of the railway track from wagons with a carrying capacity of 70 to 125 tons, which moved at different speeds (Kun & Onargan, 2013;Komandyrov, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Study of the Influence of Metro Loads on the Destruction of Nearby Buildings and Construction Structures Using Bim Technologies

Bashynskyi,

Barabash,

Bieliatynskyi

2023

Journal of Civil Engineering and Management

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The authors studied the influence of metro loads on the destruction of nearby buildings and construction structures with the help of BIM technologies in order to eliminate the human factor at the design stage. In the study, numerical modeling was carried out using the LIRA-SAPR software package, and dynamic loadings were set by the time integration technique. The suggested technique involved a nonlinear dynamic analysis conducted considering the time factor; the parameters of the stress-strain state (displacement, force, stress) were determined at each moment of exposure, changing the rigid characteristics of the building structures. The authors conducted a structural assessment of an unfinished construction facility, considering the vibrodynamic loads of the metro. Numerous models were adopted as the structural designs of buildings that consider various impact factors, such as nonlinear soil behavior and permanent action and the nature of dynamic loads. The comparison with experimental data confirmed the theoretical and computational parts of the developed technique. The study determined the vibrodynamic impact of the metro on the construction structures. Verification of the developed methodology based on BIM technologies was carried out by comparing the results of numerical experiments with the results of subsequent full-scale vibration tests.

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Section: Methodsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%