Evaluation of the Dynamic Characteristics of Coupled Shear Wall System under Seismic Loads

Authors

  • Hytham Alhunami Civil Engineering Department, College of Engineering and Architecture, Umm Al-Qura University, Saudi Arabia
  • Hamdy A. El-Gohary Civil Engineering Department, College of Engineering and Architecture, Umm Al-Qura University, Saudi Arabia | Structural Engineering Department, Faculty of Engineering, Mansoura University, Egypt
  • Rabeea W. Bazuhair Civil Engineering Department, College of Engineering and Architecture, Umm Al-Qura University, Saudi Arabia
Volume: 15 | Issue: 3 | Pages: 22262-22268 | June 2025 | https://doi.org/10.48084/etasr.10411

Received: 6 February 2025 | Revised: 25 February 2025 | Accepted: 6 March 2025 | Online: 22 March 2025


Corresponding author: Hytham Alhunami

Abstract

The Coupled Shear Wall (CSW) is a widely used lateral resistance system in medium to high-rise buildings, known for its efficiency in mitigating seismic wind forces. Its features, including high shear stiffness, strong energy dissipation, enhanced ductility, and robustness, help minimize lateral deformations. This study investigates the dynamic properties of CSW systems, focusing on the fundamental vibration period, top lateral displacement, degree of coupling, and shear force distribution in coupling beams. The research analyzes various design parameters, such as wall thickness, wall length, building height, and coupling beam thickness across multiple CSW models. The results indicate that an optimal wall thickness effectively reduces fundamental period and top displacement while increasing shear force capacity in lower stories. Additionally, greater coupling beam thickness leads to maximum shear forces occurring lower in the structure, enhancing shear resistance, particularly in the lower third of the building. The percentage reduction in fundamental period and top displacement ranges from 30% to 60%, achieved by increasing coupling beam rigidity.

Keywords:

coupled shear wall, coupling beam, displacement, fundamental period, degree of coupling

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[1]
Alhunami, H., El-Gohary, H.A. and Bazuhair, R.W. 2025. Evaluation of the Dynamic Characteristics of Coupled Shear Wall System under Seismic Loads. Engineering, Technology & Applied Science Research. 15, 3 (Jun. 2025), 22262–22268. DOI:https://doi.org/10.48084/etasr.10411.

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