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  • 1
    Publication Date: 2018-12-16
    Description: This article presents the obtained theoretical solutions for determining the degree of impact of ground transport vehicles on pedestrian undercrossings and shallow subways. Frequency characteristics of the transport impact on underground engineering structures are determined, and the maximum vertical load at high speed is found to equal 50 km/hour. With the increase of the speed of vibrational frequency the lateral vibrations of maximum amplitude occur and spike. However, the vibrational frequencies spike at the increase of speed, what may lead to resonant vibrations with underground structures, what will cause serious damage as a consequence. Studying of vibrational processes as the effect from the moving transport on underground structures it is easy to calculate that their impact is equivalent to seismicity, and can be deemed as grade 3-4 of a real earthquake intensity. The research reveals that if an engineering structure exposed to external effects of moving transport does ...
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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  • 2
    Publication Date: 2018-12-17
    Description: In this article theoretical calculations of the construction of the underground passages under the influence of seismic forces are conducted and refined by a series of experiments. As a result of experimental studies, the authors have clarified the value of the active pressure of the ground on the construction and the active seismic inertial forces, taking into account the design. As a result of theoretical and experimental studies of seismic resistance of underground pedestrian crossings at different ground, areas of stress concentration in these constructions have been determined, which allows these sections to provide anti-seismic beams, which ensures the safety of the constructions to an earthquake or significantly reduce the degree of damage.
    Print ISSN: 1757-8981
    Electronic ISSN: 1757-899X
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
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