Аннотації

Аналіз напружено-деформованого стану фундаменту-оболонки при взаємодії із пружнопластичним середовищем

Автор(и):
Вабіщевич М.О., Затилюк Г.А.
Автор(и) (англ)
Vabishchevich M.O., Zatyliuk Gh.A.
Дата публікації:

28.05.2021

Анотація (укр):

У статті на базі сучасних чисельних реалізацій метода скінченних елементів представлено обґрунтування адекватності методики розв’язання задач деформування конструкцій при їх контактній взаємодії із пружнопластичним нелінійним грунтовим середовищем. Врахування методики побудови розрахункових моделей сумісного деформування і взаємного впливу жорстких конструкцій і суттєво пластичного зовнішнього середовища дозволяє істотно уточнити напружений стан конструкцій, взаємодіючих з ґрунтовою основою, і робить помітний вплив на розрахунковий рівень несучої здатності основи.

Анотація (рус):

В статье на базе современных численных реализаций метода конечных элементов представлено обоснование адекватности методики решения задач деформирования конструкций при их контактном взаимодействии с упругопластической нелинейной грунтовой средой. Учет методики построения расчетных моделей совместного деформирования и взаимного влияния жестких конструкций и существенно пластической внешней среды позволяет уточнить напряженное состояние конструкций, взаимодействующих с грунтовым основанием, и оказывает заметное влияние на расчетный уровень несущей способности основания.

Анотація (англ):

On the basis of modern numerical implementations of the finite element method the article presents the justification of the adequacy of the method of solving the problems of structures straining in their contact interaction with the elastic-plastic nonlinear soil medium. Compatible calculations of structures and nonlinear bases, which are described by modern mechanical and soil models within one problem is a significant technical problem. The solution of the assigned tasks is possible only within the framework of numerical methods, the most common of which is the finite element method (FEM). The construction of the computational finite element model raises many complex questions that require additional detailed study. In addition, the compliance with the state building norms and regulations is an important factor for further practical use. The use of numerical methods in the calculation of machines and structures, taking into account their interaction with the elastic-plastic medium is largely determined by the complexity or even impossibility of analytical calculation due to the complexity of structural schemes, heterogeneity of material features, uneven soil layers, implementation of step-by-step work execution technologies and so on. The combination of the latest achievements in the field of structural mechanics and soil mechanics is a promising direction for the development of effective approaches to building discrete models of space systems “structure-nonlinear base” for solving applied problems. The use of the developed method allows to significantly specify the structures stress state interacting with the soil base, and to significantly specify the impact on the calculated level of the base bearing capacity. Only the simultaneous consideration of the nonlinear resistance of the soil base together with the plasticity and the structure destruction in the numerical simulation of the foundation-shell load provided good agreement with the natural experiment data as to the type of the boundary state and the bearing capacity level.

Література:

  1. Boyandin V.S. Non-linear processes of interaction of reinforced concrete foundations with soil Non-linear processes of interaction of reinforced concrete foundations with soil / V.S. Boyandin, I.A, Semenetc, A.L. Kozak // Problemy chislennogo modelirovaniia i avtomatizatcii proektirovaniia inzhenernykh konstruktcii. Sb. tr./ Pod red. Kandaurova I I. i Snitko A.N. – Leningrad: Izd-vo LIIZHT, – 1987. – P.41-89.
  2. Boyko I.P. Progressive methods of designing foundations and foundations on computers. / I.P. Boyko - Kiev: Znanie, 1986. – 20 p.
  3. Boyko I.P. Tense-deformed state of elastic-plastic dilating base of pile foundations / I.P.Boyko // Osnovaniia i fundamenty`. - 1986. - Issue. 19. - P. 10-12.
  4. Boyko I.P. Numerical modeling of the process of cracking in the reinforced concrete foundation-shell on elastic-plastic base / I.P. Boyko, V.S. Boyandin, A.E Delnik et al. // Issledovaniia i razrabotki po komp`iuternomu proektirovaniiu fundamentov i osnovanii, – Novocherkassk, Izd-vo NPI. – 1990. – P.21-27.
  5. Boyko I.P. The nonlinear processes during the interaction of reinforced concrete structures with the subsoil / I.P. Boyko, V.S. Boyandin, A.E Delnik et al. // European mechanics colioguium/248 "Non linear Soil structures interaction”10. – April 11-14, 1989, Grenoble, France. – P.142-145.
  6. Boyko I.P. Finite element simulation of the stable resistance in a foundation soil system / I.P. Boyko, V.S. Boyandin, A.E. Delnik et. al. // Archive of Appl. Mech. – 1992 – N.62 - P.316-328.
  7. Climanov V.I. Conical shell foundations. / V.I. Climanov, A.G. Leetvinenko, V.P. Kanaeva – M- Stroyizdat, 1988. – 128 p.
  8. Kroner E. Elasticity theory of materials with long-range cohesive forces / E. Kroner // Int. J. Solids and Struct. – 1967. – N 3. – P.731-742.
  9. Report on engineering and geological research at the N4 n Kiev Dairy Plant – Kiev: GPI "Iugozapadpromiaso-molprom". – Albom 2. Kn. 1. – 70 p.
  10. Schweiger H.F. Examples of successful numerical modelling of complex geotechnical problems / H.F. Schweiger et al. // Innovative Infrastructure Solutions. – 2019. – Т. 4. – №. 1. – С. 2.
  11. Solodei I.I. Nonlinear problem of structural deformation in interaction with elastoplastic medium / I.I. Solodei, E.Yu. Petrenko, Gh.A. Zatyliuk // Strength of Materials and the Theory of Structures. – 2020. – Issue 105. – P.49-64.
  12. Tetior A.N. Shell foundations. / A.N. Tetior, A.G. Leetvinenko M.: Stroiizdat, 1975. - 136 p.
  

References:

  1. Boyandin V.S. Non-linear processes of interaction of reinforced concrete foundations with soil Non-linear processes of interaction of reinforced concrete foundations with soil / V.S. Boyandin, I.A, Semenetc, A.L. Kozak // Problemy chislennogo modelirovaniia i avtomatizatcii proektirovaniia inzhenernykh konstruktcii. Sb. tr./ Pod red. Kandaurova I I. i Snitko A.N. – Leningrad: Izd-vo LIIZHT, – 1987. – P.41-89.
  2. Boyko I.P. Progressive methods of designing foundations and foundations on computers. / I.P. Boyko - Kiev: Znanie, 1986. – 20 p.
  3. Boyko I.P. Tense-deformed state of elastic-plastic dilating base of pile foundations / I.P.Boyko // Osnovaniia i fundamenty`. - 1986. - Issue. 19. - P. 10-12.
  4. Boyko I.P. Numerical modeling of the process of cracking in the reinforced concrete foundation-shell on elastic-plastic base / I.P. Boyko, V.S. Boyandin, A.E Delnik et al. // Issledovaniia i razrabotki po komp`iuternomu proektirovaniiu fundamentov i osnovanii, – Novocherkassk, Izd-vo NPI. – 1990. – P.21-27.
  5. Boyko I.P. The nonlinear processes during the interaction of reinforced concrete structures with the subsoil / I.P. Boyko, V.S. Boyandin, A.E Delnik et al. // European mechanics colioguium/248 "Non linear Soil structures interaction”10. – April 11-14, 1989, Grenoble, France. – P.142-145.
  6. Boyko I.P. Finite element simulation of the stable resistance in a foundation soil system / I.P. Boyko, V.S. Boyandin, A.E. Delnik et. al. // Archive of Appl. Mech. – 1992 – N.62 - P.316-328.
  7. Climanov V.I. Conical shell foundations. / V.I. Climanov, A.G. Leetvinenko, V.P. Kanaeva – M- Stroyizdat, 1988. – 128 p.
  8. Kroner E. Elasticity theory of materials with long-range cohesive forces / E. Kroner // Int. J. Solids and Struct. – 1967. – N 3. – P.731-742.
  9. Report on engineering and geological research at the N4 n Kiev Dairy Plant – Kiev: GPI "Iugozapadpromiaso-molprom". – Albom 2. Kn. 1. – 70 p.
  10. Schweiger H.F. Examples of successful numerical modelling of complex geotechnical problems / H.F. Schweiger et al. // Innovative Infrastructure Solutions. – 2019. – Т. 4. – №. 1. – С. 2.
  11. Solodei I.I. Nonlinear problem of structural deformation in interaction with elastoplastic medium / I.I. Solodei, E.Yu. Petrenko, Gh.A. Zatyliuk // Strength of Materials and the Theory of Structures. – 2020. – Issue 105. – P.49-64.
  12. Tetior A.N. Shell foundations. / A.N. Tetior, A.G. Leetvinenko M.: Stroiizdat, 1975. - 136 p.