Published since 1923
DOI: 10.33622/0869-7019
Russian Science Citation Index (RSCI) Web of Science
  • BUILDING STRUCTURES, BUILDINGS AND FACILITIES
  • Nonlinear Methods Of Calculations During Scientific And Technical Support
  • UDC 624.04.7
    doi: 10.33622/0869-7019.2022.10.32-36
    Vladimir B. DOROZHINSKIY, dorozhinski@mail.ru
    Moscow State University of Civil Engineering (National Research University), Yaroslavskoe shosse, 26, Moscow 129337, Russian Federation
    Abstract. An example of calculating a building of an increased level of responsibility by a nonlinear direct dynamic method when conducting scientific and technical support at a site with an intensity of seismic impact of eight points is considered. Calculations were performed taking into account geometric and physical nonlinearities. The isofields of stress intensity and plastic deformations in structural elements, graphs of changes in values over time are given. When analyzing the calculation results, the redistribution of forces, stresses during inelastic work of the material and the failure of individual elements in time, the possibility of collapse of the entire building with such damage were estimated. Based on the results of the research, recommendations on the adjustment of structural solutions (the use of beam ceilings; alignment of horizontal and vertical structures for the perception and transmission of horizontal forces; the position of vertical structures and stiffening cores, etc.) were given. It is concluded that the study of the work of structures by the nonlinear dynamic method will increase the reliability and seismic resistance of the objects under consideration.
    Keywords: nonlinear dynamic calculation methods, consideration of geometric and physical nonlinearities, isofields of stress intensity and plastic deformations, correction of structural solutions, seismic impact
  • REFERENCES
    1. Mkrtychev O. V., Busalova M. S., Dorozhinskiy V. B. Verification of the spar model of a reinforced concrete beam. MATEC Web of Conferences, 2017, no. 117, pp. 00124.
    2. Mkrytychev O. V., Bunov A. A., Dorozhinskiy V. B. Comparison of linear-spectral and nonlinear dynamic calculation methods on the example of a building of a frame-link structural scheme in an earthquake. Vestnik MGSU, 2016, no. 1, pp. 57-67. (In Russ.).
    3. Mkrtychev O. V., Lokhova E. M. Accumulation of damage in reinforced concrete elements under cyclic loads. IOP Conferece Series: Materials Science Engineering, 2021, vol. 1015, pp. 012038.
    4. Belostockiy A. M., Akimov P. A., Pavlov A. S. On numerical modeling of physically nonlinear dynamic reaction of buildings and structures under seismic impacts given by accelerograms. Sbornik nauch. tr. RAASN. Moscow, ASV Publ., 2020, pp. 105-112. (In Russ.).
    5. Kurbackiy E. N., Mondrus V. L., Pestryakova E. A. To the question of the correct assignment of the initial seismic information. ACADEMIA. Arhitektura i stroitel'stvo, 2021, no. 1, pp. 134-143. (In Russ.).
    6. Kabantsev O. V., Sergeev E. Determination seismic effect of buildings and structures, taking into account changes model of external relations within the life cycle. IOP Conference Series: Materials Science and Engineering, IOP Publishing Ltd, 2021, pp. 012093.
    7. Poznyak E. V., Bugaevskiy A. G., Simbirkin V. N., Kurnavin V. V. Calculation of stadium coverage for differentiated seismic impacts by modified linear spectral method. Stroitel'naya mekhanika i raschet sooruzheniy, 2022, no. 2(301), pp. 23-30. (In Russ.).
    8. Bulushev S. V. Comparison of the results of calculating structures for given accelerograms by nonlinear static and nonlinear dynamic methods. Stroitel'naya mekhanika inzhenernyh konstrukciy i sooruzheniy, 2018, no. 5(14), pp. 369-378. (In Russ.).
    9. Bulushev S. V., Dzhinchvelashvili G. A. Calculation justification of a given level of seismic resistance of structures. Stroitel'naya mekhanika inzhenernyh konstrukciy i sooruzheniy, 2018, no. 1, pp. 70-79. (In Russ.).
    10. Bulushev S.V., Mkrtychev O. V. Probabilistic estimation seismic resistance of plain steel frame. IOP Conferece Series: Materials Science Engineering, 2019, no. 661(1), pp. 012016.
    11. Rajzer V. D. Teoriya nadezhnosti v stroitel'nom proektirovanii [Reliability theory in construction design]. Moscow, ASV Publ., 1998. 302 p. (In Russ.).
    12. Jinchvelashvili G. A., Kolesnikov A. V., Bondar N. M. Critical analysis and development prospects of the modern theory of seismic stability of structures. International Journal for Computational Civil and Structural Engineering, 2013, no. 1, vol. 9, pp. 53-58.
  • For citation: Dorozhinskiy V. B. Nonlinear Methods of Calculations During Scientific and Technical Support. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering], 2022, no. 10, p. 32-36. (In Russ.). doi: 10.33622/0869-7019.2022.10.32-36


BACK