Issue 78

S. A. Mustafa et alii, Fracture and Structural Integrity, 78 (2026) 298-314; DOI: 10.3221/IGF-ESIS.78.18

Experimental evaluation of the cyclic behavior of implanted reinforced concrete shear walls

Suzan A. A. Mustafa University of Tabuk, Saudi Arabia; Zagazig University, Egypt smustafa@ut.edu.sa , http://orcid.org/0000-0001-9647-2456 Osman Shallan Zagazig University, Egypt osmanshalan@yahoo.com , https://orcid.org/0000-0002-6471-5561 Mohamed A. Khafaga Housing and Building National Research Center, Egypt. makhafaga@yahoo.com, https://orcid.org/0009-0005-9654-9325 Mahmoud Mashaal Zagazig University, Egypt eng.mahmoudmashaall@gmail.com , https://orcid.org/0009-0002-4306-6723

Citation: Suzan A. A. Mustafa., Osman Shallan, Mohammed A. Khafaga, Mahmoud Mashaal, "Experimental evaluation of the cyclic behavior of implanted reinforced concrete shear walls", Fracture and Structural Integrity, 78 (2026) 298-314.

A BSTRACT . Adding new reinforced concrete (RC) shear walls is a widely adopted strategy for seismic strengthening of deficient RC buildings; however, the global performance of such walls depends critically on the reliability of the wall–foundation connection. This study experimentally investigates the cyclic behavior of newly implanted RC shear walls anchored to existing foundations using post-installed vertical reinforcement, highlighting the influence of embedment length. A two-stage experimental program was conducted. The first stage focused on pull-out tests to find the best adhesive type and hole diameter. In the second stage, four large-scale shear wall specimens were tested under displacement-controlled cyclic lateral loading: one control wall with cast-in-place reinforcement and three walls anchored using post-installed bars with embedment lengths of 10Ø, 15Ø, and 20Ø. The experimental results showed that variations in embedment length directly influence the lateral strength and stiffness degradation of the tested

Received: 27.04.2026 Accepted: 01.09.2026 Published: 14.09.2026 Issue: 10.2026

Copyright: © 2026 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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