, Page 0-0 (1)

Volume Title: ICASGE2023

DOI: ICASGE-STA

¹Mohamed Sakr; ²Tarek Khalifa; ³Essam Darwish; ⁴Omar El-Batsh ; Omar Hesham El-Batsh

¹Professor of Structural Analysis, Faculty of Engineering, Tanta University, Tanta, Egypt

²Associate Professor of Structural Analysis, Faculty of Engineering, Tanta University, Tanta, Egypt

³Assistant Professor of Structural Engineering, Faculty of Engineering, Tanta University, Tanta, Egypt

⁴Demonstrator of Structural Analysis, Faculty of Engineering, Tanta University, Tanta, Egypt

Coupled shear walls have been widely used in high‐rise buildings, since they can provide efficient lateral stiffness and energy dissipation capacity. The adjacent isolated walls in a coupled shear wall building are always connected by coupling beams throughout the height of the building. The coupling beams play a crucial role in dissipating energy and resisting lateral loads. Coupling beam must behave in a ductile manner, yield before the wall piers and exhibit significant energy dissipation characteristics. At first, Conventional RC coupling beams are studied with using diagonal reinforcement.
Conventional RC coupling beams, however, are prone to significant damage during earthquakes and may require costly post-event repair or replacement. To address this issue, researchers have proposed various alternative solutions such as replaceable steel coupling beams, steel corrugated plate coupling beams, and self-centering steel coupling beams with super elastic shape memory alloy bolts. Additionally, the concept of a "fuse" has been introduced in which the central part of the coupling beam is designed to dissipate energy and concentrate damage, allowing for easy replacement after an earthquake. These solutions aim to enhance the performance of coupling beams while minimizing post-event repair or replacement difficulties and expenses.

Coupled shear wall; Coupling beam; Coupling ratio; Energy dissipation capacity; Seismic Behavior

Structural Analysis (STA)