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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vestniktgasu</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Томского государственного архитектурно-строительного университета</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1607-1859</issn><issn pub-type="epub">2310-0044</issn><publisher><publisher-name>Tomsk State University of Architecture and Building</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31675/1607-1859-2020-22-3-94-105</article-id><article-id custom-type="elpub" pub-id-type="custom">vestniktgasu-809</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>СТРОИТЕЛЬНЫЕ КОНСТРУКЦИИ, ЗДАНИЯ И СООРУЖЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BUILDING AND CONSTRUCTION</subject></subj-group></article-categories><title-group><article-title>Критерий оценки оптимальных решений при формировании кусочно-постоянных участков полосы, усиливающей стенку стержней двутаврового поперечного сечения, при ограничениях по устойчивости или на величину первой частоты собственных колебаний</article-title><trans-title-group xml:lang="en"><trans-title>Assessment criterion for optimum design solutions of piecewise constant sections in I-rods with stability or first eigen-frequency limits</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ляхович</surname><given-names>Л. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Lyakhovich</surname><given-names>L. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ляхович Леонид Семенович, докт. техн. наук, профессор, академик Российской академии архитектуры и строительных наук</p><p>634003, г. Томск, пл. Соляная, 2</p></bio><bio xml:lang="en"><p>Leonid S. Lyakhovich, DSc, Professor, Academy Fellow of the Russian Academy of Architecture and Construction Sciences, Department of Structural Mechanics</p><p>2, Solyanaya Sq., 634003, Tomsk</p></bio><email xlink:type="simple">lls@tsuab.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Акимов</surname><given-names>П. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Akimov</surname><given-names>P. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Акимов Павел Алексеевич, докт. техн. наук, профессор, академик Российской академии архитектуры и строительных наук, Томский государственный архитектурно-строительный университет; главный ученый секретарь президиума, Российская академия архитектуры и строительных наук</p><p>634003, г. Томск, пл. Соляная, 2107031, г. Москва, ул. Большая Дмитровка, 24, стр. 1</p></bio><bio xml:lang="en"><p>Pavel A. Akimov, DSc, Professor, Chief Academic Secretary, Academy Fellow of the Russian Academy of Architecture and Construction Sciences; Professor, Tomsk State University of Architecture and Building</p><p>24, Bol'shaya Dmitrovka, 107031, Moscow2, Solyanaya Sq., 634003, Tomsk</p></bio><email xlink:type="simple">akimov@raasn.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тухфатуллин</surname><given-names>Б. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tukhfatullin</surname><given-names>B. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тухфатуллин Борис Ахатович, канд. техн. наук, доцент</p><p>634003, г. Томск, пл. Соляная, 2</p></bio><bio xml:lang="en"><p>Boris A. Tukhfatullin, PhD, A/Professor, Department of Structural Mechanics</p><p>2, Solyanaya Sq., 634003, Tomsk</p></bio><email xlink:type="simple">bat9203@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Томский государственный архитектурно-строительный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tomsk State University of Architecture and Building</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Томский государственный архитектурно-строительный университет; Российская академия архитектуры и строительных наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian Academy of Architecture and Construction Sciences; Tomsk State University of Architecture and Building</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>29</day><month>06</month><year>2020</year></pub-date><volume>22</volume><issue>3</issue><fpage>94</fpage><lpage>105</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ляхович Л.С., Акимов П.А., Тухфатуллин Б.А., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Ляхович Л.С., Акимов П.А., Тухфатуллин Б.А.</copyright-holder><copyright-holder xml:lang="en">Lyakhovich L.S., Akimov P.A., Tukhfatullin B.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vestnik.tsuab.ru/jour/article/view/809">https://vestnik.tsuab.ru/jour/article/view/809</self-uri><abstract><p>Ранее был сформулирован критерий минимальной материалоёмкости полос, усиливающих стенки двутавра, при ограничениях на величину критической силы или первой частоты собственных колебаний и непрерывном изменении варьируемого параметра. Также известно, что такое решение позволяет оценивать реальный конструкторский проект не только по критерию его близости к минимально материалоёмкому, но и использовать его как ориентир при реальном проектировании. Во многих случаях для этого используется замена непрерывного изменения варьируемого размера полос, усиливающих стенку, по её длине кусочно-постоянными участками. Границы участков выбираются на основе минимально материалоёмкого проекта, а размеры ширины полос на участках определяются методами оптимизации. В статье предлагается критерий, позволяющий объективно оценивать окончание процессов такой оптимизации.</p></abstract><trans-abstract xml:lang="en"><p>The criterion for the minimum material consumption of strips strengthening the I-rod with stability or first eigen-frequency limits is formulated in previous studies for the case of continuous change of the variable parameter. It is known that this solution allows evaluating a real design project not only by the criterion of its proximity to the minimum material consumption, but also by the reference point in the real design. In many cases, it is used to replace the continuous change in the variable size of the rod-strengthening piecewise constant sections. The boundaries of these sections are based on the minimum material consumption. The width of the strengthening strips is determined by the optimization methods. The paper proposes the criterion allowing to correctly assess the termination of the optimization processes.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>усиление</kwd><kwd>критерий</kwd><kwd>оптимизация</kwd><kwd>материалоемкость</kwd><kwd>устойчивость</kwd><kwd>частота собственных колебаний</kwd><kwd>критическая сила</kwd><kwd>формы потери устойчивости</kwd><kwd>формы собственных колебаний</kwd><kwd>напряжения</kwd><kwd>изгиб</kwd><kwd>двутавр</kwd></kwd-group><kwd-group xml:lang="en"><kwd>strengthening</kwd><kwd>criterion</kwd><kwd>optimization</kwd><kwd>consumption</kwd><kwd>sustainability</kwd><kwd>natural frequency</kwd><kwd>critical force</kwd><kwd>buckling</kwd><kwd>mode shapes</kwd><kwd>stresses</kwd><kwd>bending</kwd><kwd>I-rod</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Ляхович Л.С. Особые свойства оптимальных систем и основные направления их реализации в методах расчета сооружений. Томск : Изд-во Том. гос. архит.-строит. ун-та, 2009. 372 с.</mixed-citation><mixed-citation xml:lang="en">Lyakhovich L.S. Osobye svoistva optimal'nykh sistem i osnovnye napravleniya ikh realizatsii v metodakh rascheta sooruzhenii [Specific properties of optimum systems using methods of structural analysis]. Tomsk: TSUAB, 2009. 372 p. (rus).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Afzal M., Liu Y., Cheng J.C.P., Gan V.J.L. Reinforced concrete structural design optimization: A critical review // Journal of Cleaner Production. 2020. V. 260. Article 120623.</mixed-citation><mixed-citation xml:lang="en">Afzal M., Liu Y., Cheng J.C.P., Gan V.J.L. Reinforced concrete structural design optimization: A critical review. Journal of Cleaner Production. 2020. V. 260. Article 120623.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Khan W., Siraj-ul-Islam, Ullah B. Structural optimization based on meshless element free Galerkin and level set methods // Computer Methods in Applied Mechanics and Engineering. 2019. V. 344. P. 144−163.</mixed-citation><mixed-citation xml:lang="en">Khan W., Siraj-ul-Islam, Ullah B. Structural optimization based on meshless element free Galerkin and level set methods. Computer Methods in Applied Mechanics and Engineering. 2019. V. 344. Pp. 144−163.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Martin A., Deierlein G.G. Structural topology optimization of tall buildings for dynamic seismic excitation using modal decomposition // Engineering Structures. 2020. V. 216. Article 110717.</mixed-citation><mixed-citation xml:lang="en">Martin A., Deierlein G.G. Structural topology optimization of tall buildings for dynamic seismic excitation using modal decomposition. Engineering Structures. 2020. V. 216. Article 110717.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Mayencourt P., Mueller C. Hybrid analytical and computational optimization methodology for structural shaping: Material-efficient mass timber beams // Engineering Structures. 2020. V. 215. Article 110532.</mixed-citation><mixed-citation xml:lang="en">Mayencourt P., Mueller C. Hybrid analytical and computational optimization methodology for structural shaping: Material-efficient mass timber beams. Engineering Structures. 2020. V. 215. Article 110532.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang R., Phillips B.M., Fernández-Caban P.L., Masters F.J. Cyber-physical structural optimization using real-time hybrid simulation // Engineering Structures. 2019. V. 195. P. 113−124.</mixed-citation><mixed-citation xml:lang="en">Zhang R., Phillips B.M., Fernández-Caban P.L., Masters F.J. Cyber-physical structural optimization using real-time hybrid simulation. Engineering Structures. 2019. V. 195. Pp. 113−124.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Ляхович Л.С., Малиновский А.П. Критерий минимальной материалоемкости при усилении стержней двутаврового поперечного сечения и ограничениях на величину критической силы или первой собственной частоты // Вестник Томского государственного архитектурно-строительного университета. 2015. № 5. С. 41–50.</mixed-citation><mixed-citation xml:lang="en">Lyakhovich L.S., Malinovskii A.P. Kriterii minimal''noi materialoemkosti pri usilenii sterzhnei dvutavrovogo poperechnogo secheniya i ogranicheniyakh na velichinu kriticheskoi sily ili pervoi sobstvennoi chastoty [Minimum materials consumption at rebar H-shaped section strengthening and critical load and first eigenfrequency restrictions]. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. Journal of Construction and Architecture. 2015. No. 5. Pp. 41–50. (rus)</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Ляхович Л.С., Малиновский А.П., Тухфатуллин Б.А. Критерии оптимального усиления стенки стержней двутаврового поперечного сечения при ограничениях по устойчивости или на величину первой собственной частоты // International Jornal for Computational Civil and Structural Engineering. 2016. V. 12. I. 2. С. 118−125.</mixed-citation><mixed-citation xml:lang="en">Lyakhovich L.S. Malinovskii A.P. Tukhfatullin B.A. Kriterii optimal'nogo usileniya stenki sterzhnei dvutavrovogo poperechnogo secheniya pri ogranicheniyakh po ustoichivosti ili na velichinu pervoi sobstvennoi chastoty [Criterion for optimum strengthening of I-rods with stability or first eigen-frequency limits]. International Journal for Computational Civil and Structural Engineering. 2016. V. 12. No. 2. Pp. 118−125.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Ляхович Л.С., Перельмутер А.В. Некоторые вопросы оптимального проектирования строительных конструкций // International Jornal for Computational Civil and Structural Engineering. 2014. V. 10. I. 2. P. 14–23.</mixed-citation><mixed-citation xml:lang="en">Lyakhovich L.S., Perel'muter A.V. Nekotorye voprosy optimal'nogo proektirovaniya stroitel'nykh konstruktsii [Optimum structural design]. International Journal for Computational Civil and Structural Engineering. 2014. V. 10. No. 2. Pp. 14–23.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Ляхович Л.С., Акимов П.А., Тухфатуллин Б.А. О задачах поиска минимума и максимума в строительной механике // International Journal for Computational Civil and Structural Engineering. 2017. Т. 13. № 2. С. 103–124.</mixed-citation><mixed-citation xml:lang="en">Lyakhovich L.S., Akimov P.A., Tukhfatullin B.A. O zadachakh poiska minimuma i maksimuma v stroitel'noi mekhanike [Search for minimum and maximum in structural theory]. International Journal for Computational Civil and Structural Engineering. 2017. V. 13. No. 2. Pp. 103–124.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
