Vol. 11, no.3, 2019
РусскийEnglish

INFORMATION TECHNOLOGIES



CALCULATION THE EARTHQUAKE STABILITY OF VARIOUS STRUCTURES USING THE GRID-CHARACTERISTIC METHOD
1,2,3Alena V. Favoskaya
1Moscow Institute of Physics and Technology, https://mipt.ru/
Dolgoprudny 141700, Moscow region, Russian Federation
2Scientific Research Institute of System Analysis of RAS, https://www.niisi.ru/
Moscow 117218, Russian Federation
3National Research Centre "Kurchatov Institute", http://www.nrcki.ru/
Moscow 123182, Russian Federation
E-mail: aleanera@yandex.ru
1,2Igor B. Petrov
1Moscow Institute of Physics and Technology, https://mipt.ru/
Dolgoprudny 141700, Moscow region, Russian Federation
2Scientific Research Institute of System Analysis of RAS, https://www.niisi.ru/
Moscow 117218, Russian Federation
E-mail: petrov@mipt.ru

Received 15.10.2019, peer reviewed 23.10.2019, accepted 31.10.2019
Abstract. Building in earthquake-prone regions requires the development of new methods for computer simulation in order to assess the safety of exploitation of constructed structures and design new structures. In this paper, we propose to use the grid-characteristic method on structured curvilinear grids to calculate the elastic and acoustic wave fields in the structure under consideration, containing the geological massif and surrounding water bodies. Then, based on the calculated field of the Cauchy stress tensor, the possible damaged regions are determined. To highlight the complex shape of the boundaries, multiple contacting separate computational grids are used, between which the contact condition of continuity of speed and traction is used. Test calculations of the earthquake resistance of a multi-story residential building, metro station, footbridge with elevator shaft and dam of hydroelectric power station were carried out. The used grid-characteristic method allows us to accurately solve the boundary-value problem of elastic and acoustic wave equations in the integration domain of complex shape.

Keywords:computer simulation, grid-characteristic method, structural curved grids, earthquake resistance, residential building, footbridge, dam, metro station

UDC 519.63

RENSIT, 2019, 11(2):345-350 DOI: 10.17725/rensit.2019.11.345

Full-text electronic version of this article - web site http://en.rensit.ru/vypuski/article/297/11(3)345-350e.pdf