PSI - Issue 61

First page Table of contents Previous page 308 Next page Last page

Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 ScienceDirect

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 61 (2024) 171–179

© 2024 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 the scientific committee of IWPDF 2023 Chairman © 2024 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 the scientific committee of IWPDF 2023 Keywords: Nonlinear time history analysis method, Lead rubber bearing (LRB), Base isolation system Abstract This study is designed to evaluate the efficacy of multi-storey buildings in mitigating seismic responses, particularly through the implementation of a base isolation system. Our focus centers on two reinforced concrete structures, one eight stories high and the other ten stories high, both outfitted with a base isolation system featuring lead rubber isolators to proactively minimize seismic risks. The primary objective of introducing a base isolation system is to curtail the potentially destructive impact of earthquakes on a building by attenuating the transmission of seismic forces from the superstructure to the foundations. This seismic protection technique involves strategically installing isolators between the building's superstructure and its foundations. The integration of lead rubber bearing (LRB) isolators into the building's base constitutes a pivotal approach to significantly augmenting the seismic performance of a structure. This method boasts several advantages, chief among them being a notable reduction in floor drift, a critical factor for ensuring the safety and stability of a structure amidst seismic activity. The outcomes of our study underscore the remarkable effectiveness of base isolation in substantially decreasing the overall seismic responses of buildings in the studied region. The observed reductions range from 50% to 70%, affirming the robustness and resilience that this innovative approach imparts to buildings in earthquake-prone areas. © 2024 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 the scientific committee of IWPDF 2023 Keywords: Nonlinear time history analysis method, Lead rubber bearing (LRB), Base isolation system 3rd International Workshop on Plasticity, Damage and Fracture of Engineering Materials (IWPDF 2023) Seismic behavior of base-isolated building structures with lead rubber bearings (LRBs) Adil Ziraoui a *, Benaissa Kissi a , Hassan Aaya b , Ilham Azdine a a Hassan II University, National School of Arts and Crafts, LISPS2I, Casablanca, Morocco b International University of Casablanca, LMSI, Morocco Abstract This study is designed to evaluate the efficacy of multi-storey buildings in mitigating seismic responses, particularly through the implementation of a base isolation system. Our focus centers on two reinforced concrete structures, one eight stories high and the other ten stories high, both outfitted with a base isolation system featuring lead rubber isolators to proactively minimize seismic risks. The primary objective of introducing a base isolation system is to curtail the potentially destructive impact of earthquakes on a building by attenuating the transmission of seismic forces from the superstructure to the foundations. This seismic protection technique involves strategically installing isolators between the building's superstructure and its foundations. The integration of lead rubber bearing (LRB) isolators into the building's base constitutes a pivotal approach to significantly augmenting the seismic performance of a structure. This method boasts several advantages, chief among them being a notable reduction in floor drift, a critical factor for ensuring the safety and stability of a structure amidst seismic activity. The outcomes of our study underscore the remarkable effectiveness of base isolation in substantially decreasing the overall seismic responses of buildings in the studied region. The observed reductions range from 50% to 70%, affirming the robustness and resilience that this innovative approach imparts to buildings in earthquake-prone areas. 3rd International Workshop on Plasticity, Damage and Fracture of Engineering Materials (IWPDF 2023) Seismic behavior of base-isolated building structures with lead rubber bearings (LRBs) Adil Ziraoui a *, Benaissa Kissi a , Hassan Aaya b , Ilham Azdine a a Hassan II University, National School of Arts and Crafts, LISPS2I, Casablanca, Morocco b International University of Casablanca, LMSI, Morocco

* Corresponding author E-mail address: adil_ziraoui@hotmail.com * Corresponding author E-mail address: adil_ziraoui@hotmail.com

2452-3216 © 2024 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 the scientific committee of IWPDF 2023 2452-3216 © 2024 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 the scientific committee of IWPDF 2023

Made with FlippingBook Digital Publishing Software