PSI - Issue 66

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ScienceDirect Structural Integrity Procedia 00 (2025) 000–000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2025) 000–000 Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 66 (2024) 433–448

8th International Conference on Crack Paths Alteration of the Shear Force in an Internal Beam-Column Joint during the Initiation and Growth of a Crack in a Cantilever Beam Albena Doicheva* Technical Mechanics Department, University of Architecture, Civil Engineering and Geodesy (UACEG), 1 Hr. Smirnenski Blvd., Sofia 1046, Bulgaria This paper is an extension of the following conference paper: Doicheva, A. (2024b). Shear force in RC internal beam-column connections for a beam loaded with a transverse force occupying different possible positions. The Eurasia Proceedings of Science, Technology, Engineering & Mathematics (EPSTEM), 29, 128-144. http://www.epstem.net/tr/download/article-file/4272273. Abstract The beam-column connection is a fundamental element in the frame structure. It is often responsible for structural damage during seismic impacts. Bending design of moment resisting frames is done according to a uniform procedure in the design codes of the different countries. Shear force sizing is different and continues to interest researchers. Experimental studies since the 1960s have monitored the variation of various parameters. The main factor affecting the magnitude of the shear force is the load on the structural elements and especially on the beams. In the present paper, a cantilever beam loaded with a uniformly distributed load is investigated. The expressions for the support reactions of the beam are derived. The beam is in real size. The geometric dimensions of the beam and its material properties are taken into account. It is shown the shear force changes in a frame joint that supports the cantilever beam. The results are compared with adopted method from literature and the results from Eurocode. The results showed that the proposed exact method gives results that differ from the adopted one by 15% to 31%, depending on the stage of crack development. The difference between the new exact method and that of the Eurocode ranges from 0.5% to 18%, based only on the largest shear force value determined by the exact method. © 2025 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 CP 2024 Organizers © 2025 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 CP 2024 Organizers 8th International Conference on Crack Paths Alteration of the Shear Force in an Internal Beam-Column Joint during the Initiation and Growth of a Crack in a Cantilever Beam Albena Doicheva* Technical Mechanics Department, University of Architecture, Civil Engineering and Geodesy (UACEG), 1 Hr. Smirnenski Blvd., Sofia 1046, Bulgaria This paper is an extension of the following conference paper: Doicheva, A. (2024b). Shear force in RC internal beam-column connections for a beam loaded with a transverse force occupying different possible positions. The Eurasia Proceedings of Science, Technology, Engineering & Mathematics (EPSTEM), 29, 128-144. http://www.epstem.net/tr/download/article-file/4272273. Abstract The beam-column connection is a fundamental element in the frame structure. It is often responsible for structural damage during seismic impacts. Bending design of moment resisting frames is done according to a uniform procedure in the design codes of the different countries. Shear force sizing is different and continues to interest researchers. Experimental studies since the 1960s have monitored the variation of various parameters. The main factor affecting the magnitude of the shear force is the load on the structural elements and especially on the beams. In the present paper, a cantilever beam loaded with a uniformly distributed load is investigated. The expressions for the support reactions of the beam are derived. The beam is in real size. The geometric dimensions of the beam and its material properties are taken into account. It is shown the shear force changes in a frame joint that supports the cantilever beam. The results are compared with adopted method from literature and the results from Eurocode. The results showed that the proposed exact method gives results that differ from the adopted one by 15% to 31%, depending on the stage of crack development. The difference between the new exact method and that of the Eurocode ranges from 0.5% to 18%, based only on the largest shear force value determined by the exact method. © 2025 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 CP 2024 Organizers

* Corresponding author. E-mail address: doicheva_fhe@uacg.bg * Corresponding author. E-mail address: doicheva_fhe@uacg.bg

2452-3216 © 2025 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 CP 2024 Organizers 2452-3216 © 2025 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 CP 2024 Organizers

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