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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">bzhb</journal-id><journal-title-group><journal-title xml:lang="ru">Бетон и железобетон</journal-title><trans-title-group xml:lang="en"><trans-title>Concrete and Reinforced Concrete</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0005-9889</issn><issn pub-type="epub">3034-1302</issn><publisher><publisher-name>АО «НИЦ «Строительство»</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">bzhb-8</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Методика расчета параметров резьбы и геометрических размеров соединительных муфт механических соединений арматуры</article-title><trans-title-group xml:lang="en"><trans-title>Method of calculating the parameters of the thread and the geometric dimensions of the couplings of the mechanical splices of the reinforcement bars</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>Дьячков</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dyachkov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. техн. наук, зам. руководителя Центра № 3</p><p>e-mail: d_vv@mail.ru </p></bio><bio xml:lang="en"><p>Candidate of Sciences (Engineering), Deputy Head of the Centre No. 3</p><p>e-mail: d_vv@mail.ru </p></bio><email xlink:type="simple">d_vv@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Научно-исследовательский, проектно-конструкторский и технологический институт бетона и железобетона им. А.А. Гвоздева АО «НИЦ «Строительство»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Research, Design and Technological Institute of Concrete and Reinforced Concrete named after A.A. Gvozdev “Research and Development Center “Stroitel’stvo” JSC</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>07</day><month>09</month><year>2023</year></pub-date><volume>603</volume><issue>1</issue><fpage>24</fpage><lpage>29</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Дьячков В.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Дьячков В.В.</copyright-holder><copyright-holder xml:lang="en">Dyachkov V.V.</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://www.bzhb.ru/jour/article/view/8">https://www.bzhb.ru/jour/article/view/8</self-uri><abstract><p>Приведена методика расчета геометрических размеров муфт, а также параметров накатанной и нарезанной цилиндрической резьбы механических соединений арматуры. Методика расчета позволяет выполнять подбор геометрических размеров соединительных муфт из разных марок сталей для соединения арматуры различных классов прочности. Рассматривается методика расчета, позволяющая выполнять подбор параметров механических соединений арматуры как с накатанной, так и с нарезанной резьбой, которые принципиально отличаются друг от друга по способу изготовления. В основе методики лежат принципы расчета на прочность резьбового стержня с гайкой, нагруженных осевой силой, что отражено в расчетной схеме усилий для определения длины соединительной муфты и параметров резьбы концов арматуры. Методика расчета состоит из определения расчетного диаметра накатанной или нарезанной резьбы арматурного стержня и подбора параметров по ГОСТ 24705–2004. Длина соединительной муфты определяется по напряжениям среза и смятия. Наружный диаметр муфт определяется с учетом коэффициента запаса по нагрузке, который учитывает фактическую прочность арматуры. По результатам расчета предложена формула определения диаметра штампа для высадки концов арматурных стержней перед выполнением нарезки резьбы. Сравнение результатов расчета, полученных по предлагаемой методике, с параметрами механических соединений арматуры с нарезанной и накатанной резьбой известных и апробированных производителей показало удовлетворительную сходимость. Статья будет полезна для инженеров-проектировщиков и производителей механических соединений арматуры.</p></abstract><trans-abstract xml:lang="en"><p>The method of calculating the geometric dimensions of the couplings, as well as the parameters of the rolled and cut cylindrical threads of the mechanical splices of the reinforcement bars is given. The calculation method allows you to select the geometric dimensions of connecting couplings made of different grades of steel for connecting reinforcement bars of different strength classes. The article discusses the calculation method that allows you to select the parameters of mechanical splices of reinforcement bars with both rolled and cut threads, which are fundamentally different from each other in terms of manufacturing method. The methodology is based on the principles of calculating the strength of a threaded rod with a nut loaded with an axial force, which is reflected in the design scheme of forces for determining the length of the coupling and the parameters of the thread of the ends of the reinforcement bars. The calculation method consists of determining the calculated diameter of the rolled or cut thread of the reinforcing bar and selecting the parameters according to GOST 24705–2004. The length of the coupling is determined by the shear and crease stresses. The outer diameter of the couplings is determined by taking into account the safety factor for the load, which takes into account the actual strength of the reinforcement bars. Based on the results of the calculation, a formula for determining the diameter of the stamp for the stamping of the end of the reinforcement bars before performing thread cutting is proposed. Comparison of the calculation results obtained by the proposed method with the parameters of mechanical connections of reinforcement bars with cut and rolled threads of known and approved manufacturers showed satisfactory convergence. The article will be useful for engineers, designers and manufacturers of mechanical connections of the reinforcement bars.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>механическое соединение арматуры</kwd><kwd>соединительная муфта</kwd><kwd>накатанная и нарезанная резьба</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mechanical connection of reinforcement bars</kwd><kwd>coupling</kwd><kwd>rolled and cutting threads</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">Нетеса А.Н. Сравнительный анализ трудоемкости и стоимости контроля качества основных способов соединения арматуры // &lt;i&gt;Мосты и туннели: теория, исследования, практика&lt;/i&gt;. 2015. № 8. С. 57–64.</mixed-citation><mixed-citation xml:lang="en">Netesa A.N. 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