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Влияние конструктивных параметров свариваемых элементов из парных уголков на уровень концентрации напряжений соединения с торца уголков

Authors: Emelianov, O. V.; Bultykov, A. V.; Shuvalov, A. N.;

Влияние конструктивных параметров свариваемых элементов из парных уголков на уровень концентрации напряжений соединения с торца уголков

Abstract

На основании исследования напряженно-деформированного состояния методом конечных элементов стержней из равнополочных уголков, соединенных в тавр, получены закономерности изменения коэффициентов концентрации упругих напряжений по обушку и перу с торца уголков в зависимости от конструктивных параметров свариваемых элементов. Установлено, что величина коэффициента концентрации упругих напряжений с торца уголков со стороны обушка и пера определяется длиной, катетом сварных швов, шириной полки уголков и не зависит от толщины полки уголков и фасонки. Заведение фланговых швов на торец уголков на 20 мм не сказывается на концентрации напряжений. Наложение лобового шва снижает концентрацию упругих напряжений по обушку и перу в 1,62–2,45 раза. On the basis of analysis of stress-strain behaviour by the finite-element method of back-toback double equal angle bars there are the results of the coefficient variation standards of the elastic stresses concentration in the angel end on the back edge and point depending on construction parameter of welding components. It is stated that the value of elastic stress concentration in the angel end on the side of the back edge and the point has been determined by the length and the welding leg of the welding seams, the width of the angel flange and that coefficient does not depend on the thickness of the angel flange and the gusset plate. The setting of lateral welds on the back edge angels on 20mm does not influence on the stress concentration. The application of end-lap weld reduces the elastic stresses concentration on the back edge and point in 1,62–2,45 times. Емельянов Олег Владимирович, кандидат технических наук, профессор кафедры «Проектирование зданий и строительные конструкции», Магнитогорский государственный технический университет им. Г.И. Носова (Челябинская обл., г. Магнитогорск), oleg_emelianov58@mail.ru Бултыков Александр Валерьевич, студент, Магнитогорский государственный технический университет им. Г.И. Носова (Челябинская обл., г. Магнитогорск), slik.s-team@bk.ru Шувалов Александр Николаевич, кандидат технических наук, профессор кафедры «Испытание сооружений», Московский государственный строительный университет (Москва), shuvalov@weld.su. O.V. Emelianov, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russian Federation, oleg_emelianov58@mail.ru A.V. Bultykov, Nosov Magnitogorsk State Technical University, Magnitogorsk, Russian Federation, A.N. Shuvalov, Moscow State University of Civil Engineering, Moscow, Russian Federation, shuvalov@weld.su

Keywords

laced steel structures, напряженно-деформированное состояние, сварные швы, УДК 624.014.2, решетчатые металлические конструкции, the value of elastic stress concentration, stress-strain behaviour, коэффициент концентрации упругих напряжений, welded seams, ГРНТИ 67.11

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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