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DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

Experimental and theoretical studies into the stress-strain state of the purlin supported by sandwich panels

Vestnik MGSU 11/2014
  • Danilov Aleksandr Ivanovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Metal Structures, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Tusnina Ol’ga Aleksandrovna - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Metal Structures, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 26-36

In the article, the co-authors analyze the findings of the experimental and theoretical studies into the real behaviour of a thin-walled cold-formed purlin as part of the roof structure made of sandwich panels. The roof structure fragment was tested; displacements and stresses, that the purlin was exposed to, were identified in respect of each loading increment. NASTRAN software was employed to perform the numerical analysis of the roof structure, pre-exposed to experimental tests, in the geometrically and physically non-linear setting. The finite element model, generated as a result (the numerical analysis pattern), is sufficiently well-set, given the proposed grid of elements, and it ensures reasonably trustworthy results. The diagrams describing the stress/displacement to the load ratio and obtained numerically are consistent with those generated experimentally. The gap between the critical loading values reaches 4%. Analytical and experimental findings demonstrate their close conformity, and this fact may justify the application of the numerical model, generated within the framework of this research project, in the course of any further research actions. The co-authors have identified that the exhaustion of the bearing capacity occurs due to the loss of the buckling resistance as a result of the lateral torsional buckling.

DOI: 10.22227/1997-0935.2014.11.26-36

References
  1. Georgescu M. Distortional Behavior of Z Purlins Continuously Connected to Sandwich Panel Roofs. Proceedings of International Conference “Steel — a New and Traditional Material For Building”. Brasov, 2006, 143—148 p.
  2. Joo A.L. Analysis and Design of Cold-Formed Thin-Walled Roof Systems. PhD Dissertation, Budapest, 2009, 107 p.
  3. Ayrumyan E.L. Osobennosti rascheta stal’nykh konstruktsiy iz tonkostennykh gnutykh profiley [Features of Calculating Steel Structures of Thin-Walled Formed Sections]. Montazhnye i spetsial’nye raboty v stroitel’stve [Erection and Special Works in Construction]. 2008, no. 3, pp. 2—7. (In Russian).
  4. Ayrumyan E.L. Rekomendatsii po raschetu stal’nykh konstruktsiy iz tonkostennykh gnutykh profiley [Recommendations on Calculating Steel Structures of Thin-Walled Formed Sections]. StroyPROFIl’ [Construction Profile]. 2009, no. 8 (78), pp. 12—14. (In Russian).
  5. Ayrumyan E.L., Galstyan V.G. Issledovanie deystvitel’noy raboty tonkostennykh kholodnognutykh progonov iz otsinkovannoy stali [Investigation of the Actual Work of Thin-Walled Cold-Formed Beams of Galvanised Steel]. Promyshlennoe i grazhdanskoe stroitel’stvo [Industrial and Civil Engineering]. 2002, no. 6, pp. 31—34. (In Russian).
  6. Luza G., Robra J. Design of Z-purlins: Part 1. Basics and Cross-section Values According to EN 1993-1-3. Proceedings of the 5th European Conference on Steel and Composite Structures EUROSTEEL. Graz, Austria, 2008, vol. A, pp. 129—134.
  7. Luza G., Robra J. Design of Z-purlins: Part 2. Design Methods Given in Eurocode EN 1993-1-3. Proceedings of the 5th European Conference on Steel and Composite Structures EUROSTEEL. Graz, Austria, 2008, vol. A, pp. 135—140.
  8. EN 1993-1-1:2009 Eurocode 3: Design of Steel Structures — Part 1-1: General Rules and Rules for Buildings. Available at: http://www.eurocodes.fi/1993/1993-1-1/SFS-EN1993-1-1-AC.pdf/. Date of access: 27.07.2014.
  9. Gardner L., Neterkot D.A. Rukovodstvo dlya proektirovshchikov k evrokodu 3: proektirovanie stal’nykh konstruktsiy EN 1993-1-1,1993-1-3, 1993-1-8 [Guidance for Designers to Eurocode 3: Design of Steel Structures EN 1993-1-1,1993-1-3, 1993-1-8]. Moscow, MISIMGSU Publ., 2013, 224 p. (In Russian).
  10. Young-Lin P., Put B.M., Trahair N.S. Lateral Buckling Strength of Cold-Formed Steel Z-Section Beams. Thin-Walled Structures. 1999, vol. 34, no. 1, pp. 65—93.
  11. Chu X., Rickard J., Li L. Influence of Lateral Restraint on Lateral-torsional Buckling of Cold-formed Steel Purlins. Thin-Walled Structures. 2005, vol. 43, no. 5, pp. 800—810. DOI: http://dx.doi.org/10.1016/j.tws.2004.10.012.
  12. Chu X., Ye Z., Kettle R., Li L. Buckling Behavior of Cold-formed Channel Sections under Uniformly Distributed Loads. Thin-Walled Structures. 2005, vol. 43, no. 4, pp. 531—542. DOI: http://dx.doi.org/10.1016/j.tws.2004.10.002.
  13. Duerr M., Misiek T., Saal H. The Torsional Restraint of Sandwich-panels to Resist the Lateral Torsional Buckling of Beams. Steel Construction. 2011, vol. 4, no. 4, pp. 251—258. DOI: http://dx.doi.org/10.1002/stco.201110033.
  14. Li L.Y. Lateral-torsional Buckling of Cold-formed Zed-purlins Partial-laterally Restrained by Metal Sheeting. Thin-Walled Structures. 2004, vol. 42, no. 7, pp. 995—1011.
  15. Seek M.W., Murray T.M. Mechanics of Lateral Brace Forces in Z-purlin Roof Systems. Conference Proceedings, Structural Stability Research Council Annual Stability Research Council. Rolla, Missouri, 2005, pp. 56—76.
  16. Albermani F.G.A., Kitipornchai S. Cold-formed purlin-sheeting systems. Proceedings of the Third International Conference on Advances in Steel Structures. Hong Kong, China, 2002, pp. 429—435.
  17. Lucas R.M., Albermani F.G.A., Kitiporchai S. Modelling of Cold-Formed Purlin-Sheeting Systems — Part 1: Full Model. Thin-Walled Structures. 1997, vol. 27, no. 4, pp. 223—243. DOI: http://dx.doi.org/10.1016/S0263-8231(96)00038-9.
  18. Rzeszut K., Czajkowski A. Laterally Braced Thin-walled Purlins in Stability Problems. Proceedings of the Conference Computer Methods in Mechanics. 2011. Available at: http://www.cmm.il.pw.edu.pl/cd/pdf/202.pdf/. Date of access: 27.07.2014.
  19. Vrany T., Braham M., Belica A. Restraint of Purlins for Various Roof Systems. 11th Nordic Steel Construction Conference NSCC. 2009, pp. 422—429.
  20. Kujawa M., Werochowski W., Urba?ska-Galewska E. Restraining of the Cold-formed Z-purlins with Sandwich Panels. Final Report. Gdansk, Poland, 2008, 126 p.
  21. Shimkovich D.G. Raschet konstruktsiy v MSC/NASTRAN for Windows [Calculation of Structures in MSC/NASTRAN for Windows]. Moscow, DMK Press, 2001, 448 p. (In Russian).

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