Influence of gaps in flange joints on the stress-strain state of the unit
https://doi.org/10.22227/1997-0935.2023.11.1763-1779
Abstract
Introduction. For the solution of engineering problems, the question of the actual operation of the building frame as a whole, taking into account the peculiarities of the operation of the joints connecting the load-bearing elements, is of interest. It is proposed to investigate the influence of initial gaps in flange “beam – column” type connections on strength and deformation characteristics of the joint solution. Special attention is paid to the operation of high-strength bolts with pretensioning in the “tension-bending” mode of operation. In this article, the configuration of the experimental model is proposed, the method of fixing the value of stresses in bolts at three points is chosen, which makes it possible to take into account stresses not only along the axis, but also in the plane of the cross-section of the bolt.
Materials and methods. A literature review of the subject of the influence of initial imperfections in flange joints is carried out, the question of disadvantages of existing approaches to the analytical calculation of assemblies on the basis of Russian and foreign normative documents is considered. Experimental installation and prototypes are described, recommendations for experimental studies of a frame fragment with two types of joints are given. The installation and prototypes are developed on the basis of the results of numerical calculation of finite element models.
Results. A test of a stud with the declared strength class 8.8 to determine its actual mechanical characteristics, a tensile test of a stud with slots to assess the reliability of strain gauge data and adjust the design of experimental specimens taking into account the test results, testing of joint solutions of two types of configurations, processing and analyzing the test results were carried out.
Conclusions. The methodology of experiment execution on the research subject is substantiated, the character of the influence of the formed gap on the stresses in the elements of the joint is determined.
Supporting agencies: The study was supported by a grant from NRU MGSU. Order 453/130 dated May 15, 2023 “On the implementation of projects supported by the results of the 2023 competition for fundamental and applied scientific research (R&D) by the research teams of NRU MGSU”.
About the Authors
A. R. Tusnin
Moscow State University of Civil Engineering (National Research University) (MGSU)
Russian Federation
Russian Federation
Alexander R. Tusnin — Doctor of Technical Sciences, Associate Professor, Head of the Department of Metal and Wooden Structures, Director of the Institute of Industrial and Civil Engineering
26 Yaroslavskoe shosse, Moscow, 129337
ID RSCI: 455914, Scopus: 6507367654
V. D. Platonova
Moscow State University of Civil Engineering (National Research University) (MGSU)
Russian Federation
Russian Federation
Valeria D. Platonova — postgraduate student of the Department of Metal and Wooden Structures
26 Yaroslavskoe shosse, Moscow, 129337
References
1. Kosenkova I.S., Egorov P.I. Comparative analysis of the coupling nodes of a steel beam with a column. Materials of the 57th student scientific and technical conference of the Engineering and Construction Institute of TOGU. 2017; 150-154. EDN YTGEUL. (rus.).
2. Dobrachev V.M., Vershinin D.S. New frame-parts engineering solutions for the steel frame of the building. News of Higher Educational Institutions. Construction. 2015; 7(679):5-17. EDN UKQJWH. (rus.).
3. Vershinin D.S., Shabanov E.A., Dobrachev V.M. Research of stress-deformed state of rigid units of steel frames of buildings with preliminary voltage on computer models. Innovations and Investments. 2020; 10:193-198. EDN XGFBME. (rus.).
4. Volodin M.V., Katushin V.V., Konin D.V., Olurombi A.R., Rychkov S.P. Standardization of requirements for the design and acceptance of flange connections on the basis of experimental data and calculations. Structural Mechanics and Analysis of Constructions. 2020; 1(288):62-73. EDN CBLPBA. (rus.).
5. Son M.P., Savich S.A., Zemlyanukhin A.D., Shestakov A.P. Mathematical modeling of flange connections in ANSYS software complex. International Research Journal. 2017; 6-3(60):164-167. DOI: 10.23670/IRJ.2017.60.081. EDN YTTIZJ. (rus.).
6. Son M. Influence of mechanical characteristics of bolts on stress-strain state and behavior of flange connections of beams with columns. PNRPU Bulletin. Urban development. 2019; 1(33):142-152. DOI: 10.15593/2409-5125/2019.01.10. EDN VXKZFU. (rus.).
7. Kashevarova G.G., Son M.P., Zemlyanukhin A.D. Comparison of the bearing capacity and deformability of the flange units of the beam-to-column junction at different flange thicknesses. Modern Technologies in Construction. Theory and Practice. 2020; 1:44-49. EDN JRUIXN. (rus.).
8. Son M.P. Experimental studies of strength flanged connections. Structural Mechanics of Engineering Constructions and Buildings. 2018; 14(4):348-356. DOI: 10.22363/1815-5235-2018-14-4-348-356. EDN UXZBEG. (rus.).
9. Tusnina V.M., Platonova V.D. Numerical analysis of the stiffness of the “beam-column” flange joints. Industrial and Civil Engineering. 2020; 9:28-33. DOI: 10.33622/0869-7019.2020.09.28-33. EDN ELLLJF. (rus.).
10. Elflah M.A.H. Structural behaviour of stainless steel bolted beam to column joints : thesis. University of Birmingham, 2018. URL: https://etheses.bham.ac.uk/id/eprint/8545/9/Elflah18PhD.pdf
11. Tartaglia R., D’Aniello M., Costanzo S., Landolfo R., De Martino A. Seismic design and performance of extended stiffened end-plate joints. ce/papers. 2017; 1(2-3):570-579. DOI: 10.1002/cepa.94
12. Cassiano D., D’Aniello M., Rebelo C., Seismic behaviour of gravity load designed flush end-plate joints. Steel and Composite Structures. 2018; 26(5). DOI: 10.12989/scs.2018.26.5.621
13. Yoganata Y.S., Suswanto B., Iranata D., Irawan D. Analysis study of extended end plate connection due to cyclic load using finite element method. IOP Conference Series: Materials Science and Engineering. 2020; 930(1):012050. DOI: 10.1088/1757-899X/930/1/012050
14. Hasan M.J., Ashraf M., Uy B. Moment-rotation behaviour of top-seat angle bolted connections produced from austenitic stainless steel. Journal of Constructional Steel Research. 2017; 136:149-161. DOI: 10.1016/j.jcsr.2017.05.014
15. Luo L., Du M., Yuan J., Shi J., Yu S., Zhang Y. Parametric analysis and stiffness investigation of extended end-plate connection. Materials. 2020; 13(22):5133. DOI: 10.3390/ma13225133
16. Pisarek Z. Calculation of the bolted end-plate joints subjected to two axis bending. Journal of Civil Engineering, Environment and Architecture. 2013; 30(60):219-229. DOI: 10.7862/rb.2013.27
17. Costa R., Valdez J., Oliveira S., da Silva L.S., Bayo E. Experimental behaviour of 3D end-plate beam-to-column bolted steel joints. Engineering Structures. 2019; 188:277-289. DOI: 10.1016/j.engstruct.2019.03.017
18. Al-Rifaie A. Lateral Impact Responses of Steel End Plate Beam-to-Column Connections: thesis. University of Liverpool, 2018. URL: https://core.ac.uk/download/pdf/160276083.pdf
19. Zhao D., Wang Z., Pan J., Wang P. Error analysis method of geometrically incomplete similarity of end-plate connection based on linear regression. Applied Sciences. 2020; 10(14):4812. DOI: 10.3390/app10144812
20. Luo L., Du M., Yuan J. , Shi J., Yu S., Zhang Y. Parametric analysis and stiffness investigation of extended end-plate connection. Materials. 2020; 13(22):5133. DOI: 10.3390/ma13225133
Review
For citations:
Tusnin A.R., Platonova V.D. Influence of gaps in flange joints on the stress-strain state of the unit. Vestnik MGSU. 2023;18(11):1763-1779. (In Russ.) https://doi.org/10.22227/1997-0935.2023.11.1763-1779
Views:
391
Email this article 