Numerical study of the stress-strain state of a rigid ridge assembly of wooden structures with glued washers
https://doi.org/10.22227/1997-0935.2025.9.1313-1329
Abstract
Introduction. In order to give geometric immutability to load-bearing structures that accept horizontal loads from the wind, it is necessary to introduce rigid nodes into the design scheme. The insufficiency of the regulatory framework for calculating nodes with glued joints leads to a separation of calculations from company to company. This paper proposes a method for designing and calculating a ridge assembly of wooden structures with glued washers.
Materials and methods. Engineering calculation of the ridge node and its elements, modelling and calculation of the considered connection, as well as analysis of the possibility of its application on the example of an existing building, calculated in the SCAD software.
Results. A constructive solution for a new type of rigid assembly was developed based on the use of steel washers glued into wood. A numerical and theoretical analysis of each element of the joint for the forces transmitted by neighboring structures is carried out. Estimation of the numerical order of the bending moment perceived by the proposed design. The bearing capacity of the proposed solution eliminates ductility and increases the strength of the entire joint.
Conclusions. The proposed assembly is lighter than its counterpart on glued rods, and the lack of a regulatory framework for such structures forces designers to make standard decisions. The proposed method for calculating the nodal connection can improve reliability, as well as increase the economic efficiency of the entire structure. The possibility of using the proposed node has been confirmed by numerical modelling methods.
About the Authors
F. S. Shkoliar
Peter the Great St. Petersburg Polytechnic University (SPbPU)
Russian Federation
Russian Federation
Filipp S. Shkoliar — Candidate of Technical Sciences, senior lecturer
29 Polytechnic st., St. Petersburg, 195251
ResearcherID: GLR-0652-2022
M. O. Starodubcev
Peter the Great St. Petersburg Polytechnic University (SPbPU)
Russian Federation
Russian Federation
Maxim O. Starodubcev — student
29 Polytechnic st., St. Petersburg, 195251
M. A. Safoshkin
Peter the Great St. Petersburg Polytechnic University (SPbPU)
Russian Federation
Russian Federation
Mikhail A. Safoshkin — student
29 Polytechnic st., St. Petersburg, 195251
ResearcherID: MGW-6965-2025
A. A. Astahov
Peter the Great St. Petersburg Polytechnic University (SPbPU)
Russian Federation
Russian Federation
Andrey A. Astahov — student
29 Polytechnic st., St. Petersburg, 195251
ResearcherID: MGW-7379-2025
References
1. Azzi Z., Al Sayegh H., Metwally O., Eissa M. Review of Nondestructive Testing (NDT) Techniques for Timber Structures. Infrastructures. 2025; 10(2):28. DOI: 10.3390/infrastructures10020028
2. Zolotov M.S. Investigation of stress-strain state of anchor joint on epoxy glue : autoref. dis. … candidate of technical sciences. Kharkov, 1971. (rus.).
3. Zubarev G.N., Boitemirov F.A., Golovina V.M. Test of a wooden arch with joints on glued rods. News of Higher Educational Institutions. Construction and Architecture. 1983; 12:15-21. (rus.).
4. Ivanov J.M. Long-term bearing capacity of wooden structures. News of Higher Educational Institutions. Construction and Architecture. 1972; 11:6-12. (rus.).
5. Ivanov Yu.M., Linkov I.M., Sorotkin V.M. Study of the influence of reinforcement on the strength and rigidity of wooden bent elements. Development and study of glued wooden and plywood reinforced structures. 1972; 24:13-30. (rus.).
6. Kovalchuk L.M. Gluing wood materials with plastics and metals. Moscow, Forestry industry, 1968; 239. (rus.).
7. Kalugin A.V. Glued timber structures in modern construction. Industrial and Civil Engineering. 2011; 7-2:32-37. EDN NXOUFJ. (rus.).
8. Shkoliar F.S., Nikitin A.G., Zatsepina A.I. Experimental research of a rod glued along wood fibres. Vestnik MGSU [Monthly Journal on Construction and Architecture]. 2023; 18(12):1915-1925. DOI: 10.22227/1997-0935.2023.12.1915-1925. EDN LQVESG. (rus.).
9. Zubarev G.N., Loginova M.P., Golovina V.M. Testing and calculation of connections of wooden structures : collection of scientific works. Moscow, TsNIISK named after V.A. Kucherenko, 1981. (rus.).
10. Turkovsky S.B., Sayapin V.V. Research of assembly joints of glued wooden structures. Moscow, TsNIISK named after V.A. Kucherenko, 1981. (rus.).
11. Turkovsky S.B., Pogoreltsev A.A. Development of wooden structures of “TSNIISK-system” based on inclined stuck-in rods. Industrial and Civil Engineering. 2007; 3:6-7. EDN HZIVXP. (rus.).
12. Shchelokova T. A research of stress/strain condition of reinforced timber structures with natural weakenings. MATEC Web of Conferences. 2018; 193:03051. DOI: 10.1051/matecconf/201819303051
13. Jockwer R., Caprio D., Jorissen A. Evaluation of parameters influencing the load-deformation behaviour of connections with laterally loaded dowel-type fasteners. Wood Material Science & Engineering. 2022; 17(1):6-19. DOI: 10.1080/17480272.2021.1955297
14. Jockwer R., Dietsch P. Review of design approaches and test results on brittle failure modes of connections loaded at an angle to the grain. Engineering Structures. 2018; 171:362-372. DOI: 10.1016/j.engstruct.2018.05.061
15. Mirski R., Kuliński M., Dziurka D., Thomas M., Antonowicz R. Strength properties of structural glulam elements from pine (Pinus sylvestris L.) timber reinforced in the tensile zone with steel and basalt rods. Materials. 2021; 14(10):2574. DOI: 10.3390/ma14102574
16. Akter S.T., Serrano E., Bader T.K. Numerical modelling of wood under combined loading of compression perpendicular to the grain and rolling shear. Engineering Structures. 2021; 244:112800. DOI: 10.1016/j.engstruct.2021.112800
17. Steilner M., Blaß H.J. A method to determine the plastic bending angle of dowel-type fasteners. Materials and Joints in Timber Structures. 2014; 301-306. DOI: 10.1007/978-94-007-7811-5_28
18. Franke S., Magnière N. The embedment failure of European beech compared to spruce wood and standards. Materials and Joints in Timber Structures. 2014; 221-229. DOI: 10.1007/978-94-007-7811-5_21
19. Schweigler M., Bader T.K., Hochreiner G., Lemaître R. Parameterization equations for the nonlinear connection slip applied to the anisotropic embedment behavior of wood. Composites Part B: Engineering. 2018; 142:142-158. DOI: 10.1016/j.compositesb.2018.01.003
20. Blaß H.J., Colling F. Load-carrying capacity of dowelled connections. INTER Meeting. 2015; 115-129.
21. Franke S., Magnière N. Discussion of testing and evaluation methods for the embedment behaviour of connections. INTER Meeting. 2014; 93-102.
Review
For citations:
Shkoliar F.S., Starodubcev M.O., Safoshkin M.A., Astahov A.A. Numerical study of the stress-strain state of a rigid ridge assembly of wooden structures with glued washers. Vestnik MGSU. 2025;20(9):1313-1329. (In Russ.) https://doi.org/10.22227/1997-0935.2025.9.1313-1329
Views:
9
Email this article 