Title: The use of friction bearing isolate developed by shape memory alloys wire toward earthquake resistant buildings and more sustainable

Authors: Alaa Barmo; Hala Tawfek Hasan; Mayada Al-Ahmad Al-Kousa

Addresses: Structural Earthquake Engineering Department, Higher Institute of Earthquake Studies and Research, University of Damascus, Damascus, Syria; Al-Rasheed International Private University for Science and Technology, Damascus, Syria ' Structural Earthquake Engineering Department, Higher Institute of Earthquake Studies and Research, University of Damascus, Damascus, Syria ' Department of Structural Engineering, Faculty of Civil Engineering, Damascus University, Damascus, Syria

Abstract: Seismic isolation systems are crucial for buildings to withstand earthquake loads and manage deformations. Shape memory alloys (SMA), like superelastic SMA, offer exceptional self-centring ability and dissipate seismic energy effectively. This study explores the hybrid use of SMA-based triple friction bearings (TFBs) for response control in standalone reinforced concrete structures. Parametric analysis compares the performance of SMA-based TFB systems with traditional TFBs, revealing reduced residual displacement in bearings (9%-17%) without significant increases in drift, displacements, and forces. This effectiveness in decreasing displacement and lateral deformation preserves efficacy and durability, safeguarding superstructures.

Keywords: seismic isolation; shape memory alloys; SMA; superelasticity; Triple friction bearing; TFB; smart materials.

DOI: 10.1504/IJMRI.2025.146255

International Journal of Masonry Research and Innovation, 2025 Vol.10 No.3/4/5, pp.445 - 457

Received: 19 Aug 2023
Accepted: 22 Dec 2023
Published online: 14 May 2025 *

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