Strength Analysis and Method of Load-Bearing Wall Areas Loosen by Installing New Openings
https://doi.org/10.31675/1607-1859-2025-27-4-95-108
EDN: RIJNBG
Abstract
The paper proposes the strength analysis of internal load-bearing walls loosen by the installation of new openings during the redevelopment (reconstruction) of apartments in an old building.
Purpose: The proposed method for strengthening load-bearing walls is developed to ensure further trouble-free operation of load-bearing structures of buildings.
Methodology/approach. The creation of combined structure based on gluing a double-sided frame made of carbon fiber reinforced canvases (tapes), including determination of their cross-sectional area based on the equality of the bearing capacity of the tape and missing (cut) longitudinal working reinforcement.
Research findings: The efficiency of the proposed combined structure for strengthening load-bearing walls is substantiated and confirmed by calculations and introduced into practice in 2016. Practical implications:
Research results can be used in strengthening not only load-bearing walls loosen by the installation of new openings, but also existing window or door openings.
Originality/value. It is possible to consider reinforcing a section of the internal load-bearing wall above the cut-out opening by gluing a double-sided clamp made of carbon fiber reinforced canvases (tapes) and calculating their required cross-section.
About the Authors
E. K. Opbul
Emperor Alexander I St. Petersburg State Transport University; Tuvan State University
Russian Federation
Russian Federation
Ehres K. Opbul, PhD
9, Moskovskii Ave., 190031
36, Lenin Str., 667000, Kyzyl
G. N. Shirunov
The Saint Petersburg Military Engineering-Technical University (Nikolaevsky)
Russian Federation
Russian Federation
Gurii N. Shirunov, DSc
8, Makarov Emb., 199034, Saint-Petersburg
Anai-Khaak B. Kaldar-ool
Tuvan State University
Russian Federation
Russian Federation
Anai-Khaak B. Kaldar-ool, PhD
36, Lenin Str., 667000, Kyzyl
E. E. Namchil
The Saint Petersburg Military Engineering-Technical University (Nikolaevsky)
Russian Federation
Russian Federation
Evgenii E. Namchil, Research Assistant
8, Makarov Emb., 199034, Saint-Petersburg
References
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Review
For citations:
Opbul E.K., Shirunov G.N., Kaldar-ool A.B., Namchil E.E. Strength Analysis and Method of Load-Bearing Wall Areas Loosen by Installing New Openings. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2025;27(4):95-108. (In Russ.) https://doi.org/10.31675/1607-1859-2025-27-4-95-108. EDN: RIJNBG
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