PSI - Issue 36

Available online at www.sciencedirect.com Available online at www.sciencedirect.com Sci nceD rect Structural Integrity Procedia 00 (2021) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2021) 000 – 000

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Procedia Structural Integrity 36 (2022) 217–222

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors Abstract In the article, the behaviour of glued wood beams are studied in order to increase their strength under normal stresses by means of combined reinforcement. The design of the reinforced beam provides reinforcement of the compressed area by steel rod, and of the tensioned zone – by external tape reinforcement from high-strength composite materials. An attempt to increase the strength of wood elements at normal bending stresses using this type of reinforcement has been made. Based on the experimental research results, graphs of layer-by-layer deformation along the height of beams are constructed. Data on the bearing capacity of the tested samples are presented. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors Keywords: glued wood, strength, bearing capacity, steel reinforcement, composite reinforcement. Abstract In the article, the behaviour of glued wood beams are studied in order to increase their strength under normal stresses by means of combined reinforcement. The d sign f th reinforced b am provides reinforc ment of the compr ssed area by t el rod, d the te sion d zon – by external tape reinforcem nt fro high-strength composite materials. An attempt to increase the strength of woo elements at normal bending stress s using this type of r infor e ent has been made. Based on the experim ntal res arc results, graphs of layer-by- ayer deformation along the height of beams ar constructed. Data on the bearing capacity of the tested samples re present d. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors Keywords: glued wood, strength, bearing capacity, steel reinforcement, composite reinforcement. 1st Virtual International Conference “In service Damage of Materials: Diagnostics and Prediction” Improving the strength of bending elements of glued wood Svyatoslav S. Gomon a , Petro Gomon a , Sviatoslav Homon a * , Mykola Polishchuk a , Tetiana Dovbenko a , Leonid Kulakovskyi b 1st Virtual International Conference “In service Damage of Materials: Diagnostics and Prediction” Improving the strength of bending elements of glued wood Svyatoslav S. Gomon a , Petro Gomon a , Sviatoslav Homon a * , Mykola Polishchuk a , Tetiana Dovbenko a , Leonid Kulakovskyi b a National University of Water and Environmental Engineering, Soborna 11, Rivne 33000, Ukraine b National technical university of Ukraine “ Igor Sikorsky Kyiv Polytechnic Institute ” , Kyiv 03056, Ukraine a National University of Water and Environmental Engineering, Soborna 11, Rivne 33000, Ukraine b National technical university of Ukraine “ Igor Sikorsky Kyiv Polytechnic Institute ” , Kyiv 03056, Ukraine

Nomenclature h Nomenclature h u d

height of the beam height of the beam r lative deform tion of wood along fibers

relative deformation of wood along fibers maximum bending moment that the beam can receive max mum bending m ment th t the beam can receive ultimate oment

u d М max М max

ultimate moment

М

* Corresponding author. Tel.:+380679158650 E-mail address: s.s.homon@nuwm.edu.ua * Corresponding author. Tel.:+380679158650 E-mail address: s.s.homon@nuwm.edu.ua

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors 2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors 10.1016/j.prostr.2022.01.027