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The Use of Thermally Damaged Wood in Laminated Wood Beam Structures. C. 168-181

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V.A. Martynov, M.S. Lisyatnikov, A.V. Lukina, S.I. Roshchina

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This paper deals with the experimental research results of laminated wood beam structures made using lamellas produced from the pine trees, partially damaged in forest plantations. The purpose of the research has been to study the stress-strain state of laminated wood beam structures utilizing the wood damaged by the thermal exposure caused by a forest fire. Previously, the authors have carried out a significant amount of research into the physical, mechanical and strength properties of thermally damaged pine wood. They have established the dependence of the strength properties of the wood on the degree of fire damage and the wood sampling points according to the height of the stem. Prior to the experiment on the large-scale models in the “Lira 10.12” software complex, numerical studies of four series of single beams with a span of 6.0 m and a section of 140×500 mm produced from the 1st grade pine wood in the upper and lower parts of the section and from thermally damaged pine wood in the middle part of the section. A comparative analysis of the beams has been performed with varying percentages of replacement of the healthy pine wood with the one weakened by the fire along the height of the section: 76, 62, 51 and 36 %. As a result of the numerical calculation of the beams under study using the derived safety factor equaling 1.136, their actual load-bearing capacity has been determined. It has been established that a decrease in the load-bearing capacity of the СB-2 beams equals 12.2 kN, which is 16.05 % relative to the reference beam CB-5, made entirely of the 1st grade pine wood. For the CB-4 beams a decrease in the load-bearing capacity equals 7.4 kN, which is 9.74 % relative to the reference beam CB-5. The difference between the calculated and experimental breaking loads is 9.5 to 14.3 %. The introduction of the safety factor equaling 1.136 in the numerical calculation ensures sufficient convergence of the calculated and experimental data (the measurement error is 3 %). The load-bearing capacity of the reference beam СB-5, made entirely of the 1st grade pine wood, is 12.38 kN/m. For beams CB-1 to CB-4 it equals from 8.53 to 12.06 kN/m. The relative decrease in the load-bearing capacity did not exceed 31.1 to 32.5 %. It has been established that the CB-4 beam, made using 34 % of lamellas produced from thermally damaged pine wood, allows for the load-bearing capacity of 97.5 % relative to the beams made entirely of the 1st grade pine wood.


Vladislav A. Martynov, Postgraduate Student;
Mikhail S. Lisyatnikov, Candidate of Engineering, Assoc. Prof.; ResearcherID: V-6057-2018, 
Anastasiya V. Lukina, Candidate of Engineering, Assoc. Prof.; ResearcherID: O-1352-2016, 
Svetlana I. Roshchina*, Doctor of Engineering, Prof.; ResearcherID: A-7722-2019,


Vladimir State University named after A.G. and N.G. Stoletovs, ul. Gor’kogo, 87, Vladimir, 600000, Russian Federation;*


pine wood, thermally damaged pine wood, modeling, laminated wood beam structure, wood composite beam, strength, resource saving, forest fire

For citation

Martynov V.A., Lisyatnikov M.S., Lukina A.V., Roshchina S.I. The Use of Thermally Damaged Wood in Laminated Wood Beam Structures. Lesnoy Zhurnal = Russian Forestry Journal, 2024, no. 1, pp. 168–181. (In Russ.).


  1. Balantseva N.B., Melekhov V.I., Kalinicheva O.A. Improvement of the Method for Calculating the Process of Convective Drying of Sawn Timber. Lesnoy Zhurnal = Russian Forestry Journal, 2018, no. 4, pp. 132–139. (In Russ.).
  2. Gubenko L.A., Khandov M.G. The Possibility of Using Low-Grade Wood in Glued Wooden Structures. Proc. of the VII Int. Sci-Tech Conf. dedicated to the 100th anniversary of the birth of SPbGASU (LISI) scientists V.A. Lebedev, V.A. Trull, E.I. Svetozarova “Construction Science – XXI century: Theory, Education, Practice, Innovations for the North Arctic Region”, June 28–30, 2016. Arkhangelsk, RAD Advertising Agency LLC, 2016, pp. 64–68. (In Russ.)
  3. Labudin B.V., Morozov V.S., Popov O.N., Nikitina T.A., Orlov A.O. The Resistance of Laminated Wood to Tension at Different Angles of the Orientation of the Fibers. Stroitel’naya Mekhanika i Raschet Sooruzheniy = Structural Mechanics and Analysis of Constructions, 2019, no. 3(284), pp. 12–17. (In Russ.).
  4. Lukina A.V., Lisyatnikov M.S., Martinov V.A., Roschina S.I. Strength and Deformability of Raw Wood after Fire Exposure. Construction and Reconstruction, 2022, no. 6(104), pp. 40–49. (In Russ.)
  5. Naichuk A.Ya., Pogorel’tsev A.A., Serov Ye.N. Theory and Practice of Further Development of Wooden Structures. Part 1: Loads, Design Resistance and Long-Term Strength of Timber. Promyshlennoe i grazhdanskoe stroitel’stvo = Industrial and Civil Engineering, 2018, no. 6, pp. 38–44. (In Russ.).
  6. Nikitina A.V., Isakova V.V., Ashikhmina A.A. Wood and Adhesives Used in the Manufacture of Laminated Wood Structures. Integratsiya Nauk = Integration of Sciences, 2018, no. 8(23), pp. 431–433. (In Russ.).
  7. Ivanov K.V. Wooden Glued Structural Element, Method of Erecting Wall Structures from Wooden Glued Structural Elements. Patent RF, no. RU 2587215 C1, 2016. (In Russ.).
  8. Pirtskhalava-Karpova N.R., Karpov A.A., Kozlovski E.E., Grishchenko M.Yu. Protection of Spruce Forests from Outbreaks of Ips Typographus (Review). Lesnoy Zhurnal = Russian Forestry Journal, 2021, no. 4, pp. 55–67. (In Russ.).
  9. Pogorel’tsev A.A., Pyatikrestovskiy K.P. Issues of Further Development and Improvement of Design Standards for Wood Structures. Promyshlennoe i grazhdanskoe stroitel’stvo = Industrial and Civil Engineering, 2019, no. 3, pp. 35–41. (In Russ.).
  10. Pyatikrestovskiy K.P., Travush V.I., Pogorel’tsev A.A., Klukin A.A. Development of Structures from Solid Wood for Objects of Infrastructure. International Journal for Computational Civil and Structural Engineering, 2018, vol. 14, no. 1, pp. 145–154. (In Russ.).
  11. Tyurina O.E. Increasing the Strength and Rigidity of Wood-Laminated Beam Elements Reinforced with Composite Rods: Cand. Tech. Sci. Diss. Arkhangelsk, 2022. 128 p. (In Russ.).
  12. Arefyev S.P. West Siberian Latitundial Xylomycological Scale and Its Use for Indicating Forest Conditions. Contemporary Problems of Ecology, 2018, vol. 11, iss. 5, pp. 527–541.
  13. Castillo M.E., Garfias R., Plaza Á. Effects of Fire on Forest Communities and Sclerophyllous Scrubs in Central Chile as a Basis for the Formulation of Restoration Guidelines. Forestist, 2021, vol. 71, iss. 1, pp. 9–17.
  14. Lisyatnikov M., Lukina A., Chibrikin D., Labudin B. The Strength of Wood-Reinforced Polymer Composites in Tension at an Angle to the Fibers. Proceedings of MPCPE 2021. Lecture Notes in Civil Engineering. Cham, Springer, 2022, vol. 182, pp. 523–533.
  15. Lukin M., Prusov E., Roshchina S., Karelina M., Vatin N. Multi-Span Composite Timber Beams with Rational Steel Reinforcements. Buildings, 2021, vol. 11, iss. 46.
  16. Lukina A., Lisyatnikov M., Lukin M., Vatin N., Roschina S. Strength Properties of Raw Wood after a Wildfire. Magazine of Civil Engineering, 2023, iss. 3(119), art. no. 11907.
  17. Lukina A., Lisyatnikov M., Martinov V., Chernykh A., Roschina S. Mechanical and Microstructural Changes in Post-Fire Raw Wood. Architecture and Engineering, 2022, vol. 7, iss. 3, pp. 44–52.
  18. Scandelli H., Ahmadi-Senichault A., Richard F., Lachaud J. Simulation of Wood Combustion in PATO Using a Detailed Pyrolysis Model Coupled to fireFoam. Applied Sciences, 2021, vol. 11, iss. 22, art. no. 10570.
  19. Suzuki J., Mizukami T., Naruse T., Araki Y. Fire Resistance of Timber Panel Structures Under Standard Fire Exposure. Fire Technology, 2016, vol. 52, pp. 1015–1034.
  20. Veselkin D., Kuyantseva N., Pustovalova L., Mumber A. Trends in Forest Fire Occurrence in the Ilmensky Nature Reserve, Southern Urals, Russia, between 1948 and 2014. Forests, 2022, vol. 13, iss. 4, art. no. 528.
  21. Yang Y., Hu X., Han M., He K., Liu B., Jin T., Cao X., Wang Y., Huang J. Post-Rire Temporal Trends in Soil Properties and Revegetation: Insights from Different Wildfire Severities in the Hengduan Mountains, Southwestern China. Catena, 2022, vol. 213, art. no. 106160.


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