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Pritykin Aleksey Igorevich -
Immanuel Kant Baltic Federal University (IKBFU)
Doctor of Technical Sciences, Associate Professor, Department of Urban Development, Land Planning and Design, Immanuel Kant Baltic Federal University (IKBFU), 14 Aleksandra Nevskogo str., Kaliningrad, 236041;
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Kirillov Il’ya Evgen’evich -
Kaliningrad State Technical University (KSTU)
postgraduate student, Department of Industrial and Civil Engineering, Kaliningrad State Technical University (KSTU), 1 Sovetskiy Prospect, Kaliningrad, 236022, Russian Federation;
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Application of flexible-walled beams is rather effective because the reducing of wall thickness compared to ordinary welded beams leads to substantial reduction of metal expenditure for the walls and its more rational use. The operation experience of such beams shows that the loss of local stability of a wall takes place near bearing cross section with characteristic diagonal type of half waves, indicating, that the reason for the stability loss is in shear deformation. In plate girder with slender web big transverse forces appear, which leads to its buckling as a result of shear. One of the ways to increase stability of the parts of web near supports is to install stiffeners. In the given work the task of finding critical stresses of fixed square plate with installed inclined stiffener is considered. Investigations were performed with the help of finite element method and were experimentally checked. Recommendations were given on the choice of optimal size of the stiffener.
DOI: 10.22227/1997-0935.2014.12.77-87
References
- Chen W.F., Lui E.M. Handbook of Structural Engineering, 2nd ed. CRC Press, 2005, 1768 p.
- Duggal S.K. Design of Steel Structures. Tata McGraw-Hill Education, 2000, 663 p.
- Darko Beg. Plate and Box Girder Stiffener Design in View of Eurocode 3: Part 1.5. 6th National Conference on Metal Structures. 2008, vol. 1, pp. 286—303.
- Hendy C.R., Presta F. Transverse Web Stiffeners and Shear Moment Interaction for Steel Plate Girder Bridges. Proceedings of the 7th International Symposium on Steel Bridges. Guimaracs. Portugal. 2008. ECCS, p. 8.
- Evans H.R. Longitudinally and Transversely Reinforced Plate Girders. Chapter 1. Plated Structures, Stability&Strength. Ed R. Narayanan. Elsevier Applied Science Publishers, London, 1983, pp. 1—73.
- Ravi S. Bellur. Optimal Design of Stiffened Plates. M. Sc. Thesis, University of Toronto, Graduate Department of Aerospace Science and Engineering, 1999, 100 p.
- Mohammed M. Hasan. Optimum Design of Stiffened Square Plates for Longitudinal and Square Ribs. Al-khwarizmi Engineering Journal. 2007, vol. 3, no. 3, pp. 13—30.
- Leitch S.D. Steel Plate Girder Webs with Slender Intermediate Transverse Stiffeners. Ottawa: National Library of Canada. Biblioth? que national edu Canada, 1999.
- Virag Z. Optimum Design of Stiffened Plates for Different Load and Shapes of Ribs. Journal of Computational and Applied Mechanics. 2004, vol. 5, no. 1, pp. 165—179.
- Kubiak T. Static and Dynamic Buckling of Thin-Walled Plate Structures. Cham, Springer, 2013, 250 p. DOI: http://dx.doi.org/10.1007/978-3-319-00654-3.
- ?kesson B. Plate Buckling in Bridges and Other Structures. London, Taylor & Francis, 2007, 282 p.
- Gaby Issa-El-Khoury, Daniel G Linzell, Louis F. Geschwindner. Computational Studies of Horizontally Curved, Longitudinally Stiffened, Plate Girder Webs in Flexure. Journal of Constructional Steel Research. February 2014, vol. 93, pp. 97—106. DOI: http://dx.doi.org/10.1016/j.jcsr.2013.10.018.
- Aleksi? S., Roga? M., Lu?i? D. Analysis of Locally Loaded Steel Plate Girders: Model for Patch Load Resistance. Journal of Constructional Steel Research. October 2013, vol. 89, pp. 153—164. DOI: http://dx.doi.org/10.1016/j.jcsr.2013.07.005.
- Saliba N., Real E., Gardner L. Shear Design Recommendations for Stainless Steel Plate Girders. Engineering Structures. February 2014, vol. 59, pp. 220—228. DOI: http://dx.doi.org/10.1016/j.engstruct.2013.10.016.
- Real E., Mirambell E., Estrada I. Shear Response of Stainless Steel Plate Girders. Engineering Structures. July 2007, vol. 29, no. 7, pp. 1626—1640. DOI: http://dx.doi.org/10.1016/j.engstruct.2006.08.023.
- Chac?n R., Mirambell E., Real E. Transversally stiffened plate girders subjected to patch loading. Part 1. Preliminary study. Journal of Constructional Steel Research. January 2013, vol. 80, pp. 483—491. : http://dx.doi.org/10.1016/j.jcsr.2012.06.008.
- Tang K.H., Evans H.R. Transverse Stiffeners for Plate Girder Webs—an Experimental Study. Journal of Constructional Steel Research. 1984, vol. 4, no. 4, pp. 253—280. DOI: http://dx.doi.org/10.1016/0143-974X(84)90002-6.
- Birger I.A., Panovko Ya.G., editors. Prochnost’, ustoychivost’, kolebaniya. Spravochnik v trekh tomakh [Strength, Stability, Fluctuations. Reference Book]. Vol. 3, Moscow, Mashinostroenie Publ., 1968, 567 p. (In Russian)
- SP 16.13330.2011. Stal’nye konstruktsii. Aktualizirovannaya redaktsiya SNiP II-23—81* [Construction Requirements SP 16.13330.2011. Steel Structures. Revised edition of SN&R II-23—81*]. Minregion Rossii [Ministry of Regional Development of Russia]. Moscow, OAO «TsPP» Publ., 2011, 172 p. (In Russian)
- Pritykin A.I. Mestnaya ustoychivost’ balok-stenok s shestiugol’nymi vyrezami [Local Stability of Wall Beams with Hexagonal Gains]. Stroitel’naya mekhanika i raschet sooruzheniy [Structural Mechanics and Calculation of Structures]. 2011, no. 1, pp. 2—6. (In Russian)
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Gustov Yuriy Ivanovich -
Moscow State University of Civil Engineering (MGSU)
Doctor of Technical Sciences, Professor, Department of Machinery, Machine Elements and Process Metallurgy, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 183-94-95;
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Voronina Irina Vladimirovna -
Moscow State University of Civil Engineering (MGSU)
Senior Lecturer, Department of Building and Hoisting Machinery, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; +7 (499) 182-16-87;
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Allattouf Hassan Lattouf -
Moscow State University of Civil Engineering (MGSU)
postgraduate student, Department of Mechanic Equip- ment, Details of Machines and Technology of Metals, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation;
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The authors have demonstrated that coefficients of deformation and strength of metals can be applied to identify interrelationship between their shear stress and fatigue strength values.δThe authors have found that coefficient of proportionality ƒconnecting tensileвstrength σand hardness HB of magnesium alloys varies between 0.353 – 0.366 withthe average value equaling to 0.359. The coefficient of proportionality connecting shear stress τср and hardness HB varies between 0.246 – 0.267, and its average value equals to 0.254. Ratio S of shear stress to fatigue strength varies within 1.365 – 1.481, and its average value is equal to 1.410. For aluminum alloys, the above values are lower by 43% and 42%, respectively.δFor carbon steels, the coefficient of proportionality ƒ= 0.312 – 0.349, its averageδvalue is equal to 0.333, and for alloy steels, ƒ= 0.289 – 0.351, its average value is equalto 0.325. Coefficients of proportionality connecting the shear stress and hardness of carbon and alloy steels are equal to 0.172 – 0.229 and 0.134 – 0.223, with their average values being equal to 0.202 and 0.183.Therefore, the authors believe that the relation of shear stress values to fatigue strength values of the above non-ferrous and ferrous metals is close to one.
DOI: 10.22227/1997-0935.2013.4.31-37
References
- Gustov Yu.I. Povyshenie iznosostoykosti rabochikh organov i sopryazheniy stroitel’nykh mashin [Improvement of Wear Resistance of Operating Elements and Interfaces of Construction Machinery]. Moscow, 1994, 529 p.
- Gustov Yu.I., Gustov D.Yu., Voronina I.V. Metodologiya opredeleniya tribo-tekhnicheskikh pokazateley metallicheskikh materialov [Methodology for Identification of Tribo-engineering Values of Metallic Materials]. Teoreticheskie osnovy stroitel’stva: XV Slovatsko-rossiysko-pol’skiy seminar: sb. dokladov. [Theoretical Fundamentals of Civil Engineering. 15th Slovac-Russian-Polish Workshop. Collected Reports]. Moscow, 2007, pp. 339—342.
- Gustov Yu.I. Tribotekhnika stroitel’nykh mashin i oborudovaniya [Tribo-engineering of Construction Machinery and Equipment]. Moscow, MGSU Publ., 2011, 192 p.
- Gustov Yu.I., Gustov D.Yu., Yarmolik N.V. Vybor materialov dlya tribosistem i metallo-konstruktsiy stroitel’noy tekhniki [Selection of Materials for Tribosystems and Metal Structures of Construction Machinery]. Interstroymekh — 2008. Materialy Mezhdunar. nauch.-tekhn. konf. [Interstroymech – 2008. Works of International Scientific and Technical Conference]. Vladimir, 2008, vol. 2, pp. 35—40.
- Gustov Yu.I. Energotopograficheskiy metod issledovaniya iznosostoykosti metallov [Power Topography Method of Research into Wear Resistance of Materials]. Novoe v metallovedenii. Nauchno-prakticheskiy seminar. Sb. dokladov. [Metal Science News. Scientific and Practical Workshop. Collected Reports.] Moscow, MGSU Publ., 2009, pp. 3—7.
- Tylkin M.A. Spravochnik termista remontnoy sluzhby [Reference Book for Repair Service Heat- Treaters]. Moscow, Metallurgiya Publ., 1981, 647 p.
- Babichev A.P., Babushkina I.A., Bratkovskiy A.M. Fizicheskie velichiny [Physical Values]. Moscow, Energoatomizdat Publ., 1991, 1232 p.
- Arzamasov B.N., Solov’eva T.V., Gerasimov S.A. Spravochnik po konstruktsionnym materialam [Reference Book of Structural Materials]. Moscow, MGTU im. N.E. Baumana Publ., 2005, 640 p.
- Sorokin V.G., Volosnikova A.V., Vyatkin S.A. Marochnik staley i splavov [Book of Steel and Alloy Grades]. Moscow, Mashinostroenie Publ.,1989, 640 p.