The reaction of the building structure with window unit to the explosiveimpact on the basis of dynamic equation solution

Vestnik MGSU 1/2014
  • Doronin Fedor Leonidovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Hydraulics and Water Resources, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, 129337, Moscow, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Truchanova Lyudmila Nikolaevna - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Pro- fessor, Department of Physics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, 129337, Moscow, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Fomina Marina Vasilyevna - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Physics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, 129337, Moscow, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 33-40

When designing residential buildings, additional measures for increasing the strength at dynamic effects indoors are not foreseen. The walls of the structure fixed in the framework are not designed for shock wave caused by explosion of utility gas. When designing a building, the task of the special dynamic load is often reduced to the calculation of the safe shock pressure, exceeding of which leads to the destruction of the structures. The wall with the window area under dynamic effects is a blast relief panel, which reduces the excess pressure inside the room. The proposed method of calculating a design with a window unit allows determining the dynamic reaction of the wall on explosive pulse. The proposed calculation technique of the constructions at shock loads allows tracing the changes of the inertial forces and displacements at any stage of dynamic response. The reaction to dynamic loads can be also set for non-monolithic structures, consisting of different materials with different conditions of fastening. Elastoplastic reaction of a brick wall with glass units was determined using step-by-step method of linear acceleration. The calculation of stress-strain state of brick walls with window panes determined the strength properties of the structures close to the monolithic version. The proposed technique of numerical solution of dynamic equations is applied only in the analysis of elastic systems, in which the dynamic characteristics remain unchanged throughout the reaction process.

DOI: 10.22227/1997-0935.2014.1.33-40

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Design of non-rigid pavements in view of moving vehicles influence

Vestnik MGSU 8/2018 Volume 13
  • Kirillov Andrey M. - Automotive Road College candidate of physical and mathematical sciences, teacher of physics and astronomy, Automotive Road College, 26a/1 Yana Fabritsiusa st., Sochi, Krasnodar region, 354008, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 959-972

Subject: interaction of the moving vehicle with asphalt concrete road pavement. Research objectives: analysis of influence of dynamic loads from the moving vehicle on the road pavement with asphalt concrete. Materials and methods: interaction models are based on the impulse approach (impulse of dynamic loads) and dynamic factor. Results: creation of the mathematical model which is based on the impulse approach and allows us to determine the load on the pavement as a function of vehicle speed. Conclusions: 1) when the speed increases, the force exerted by the moving vehicle on pavement quickly decreases, reaching a minimum at some speed, and then slowly increases; 2) there exists the optimum vehicle speed for the highway exploitation, at which the impact of the force on the road is minimum; it is possible to increase the pavement longevity if this speed for road exploitation is complied with.

DOI: 10.22227/1997-0935.2018.8.959-972

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