A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic Resilience Assessment of Highway Bridges Equipped with Shape Memory Alloy Isolation Bearings
https://orcid.org/http://orcid.org/0000-0002-8423-4650
https://orcid.org/http://orcid.org/0000-0001-9840-3438
Evaluating bridge seismic resilience is one of the vital components of transportation system resilience. Efficient and reliable seismic protection systems must be implemented to decrease economic losses and casualties during a seismic event. Among different seismic protection systems for bridges, one of the most effective systems is the seismic isolation bearings. This study explores the seismic resilience sensitivity of a base-isolated bridge equipped with shape memory alloy (SMA)-based smart isolation systems. Considering a reinforced concrete bridge isolated with SMA bearing and conventional lead rubber bearing, this study examines the impact of these isolation systems on the seismic resilience of bridges. The seismic vulnerability of the base-isolated bridges is evaluated through detailed finite element analysis under pairs of 22 far-field ground motions representing seismic hazards at the bridge site. The comparative resilience of the base-isolated bridge systems is evaluated by considering appropriate loss and recovery models. The resilience assessment of SMA-isolation systems represents the adequacy and effectiveness of the base-isolation technique. The findings of the present study evince that the seismic performance, resilience, and recovery trajectory of isolated bridges are contingent upon the type of isolation system employed. Furthermore, the study revealed that the employment of shape memory alloy isolation bearing confers a robust seismic performance and resilience upon bridges, by virtue of their high capacity for dissipating seismic energy.
Seismic Resilience Assessment of Highway Bridges Equipped with Shape Memory Alloy Isolation Bearings
https://orcid.org/http://orcid.org/0000-0002-8423-4650
https://orcid.org/http://orcid.org/0000-0001-9840-3438
Evaluating bridge seismic resilience is one of the vital components of transportation system resilience. Efficient and reliable seismic protection systems must be implemented to decrease economic losses and casualties during a seismic event. Among different seismic protection systems for bridges, one of the most effective systems is the seismic isolation bearings. This study explores the seismic resilience sensitivity of a base-isolated bridge equipped with shape memory alloy (SMA)-based smart isolation systems. Considering a reinforced concrete bridge isolated with SMA bearing and conventional lead rubber bearing, this study examines the impact of these isolation systems on the seismic resilience of bridges. The seismic vulnerability of the base-isolated bridges is evaluated through detailed finite element analysis under pairs of 22 far-field ground motions representing seismic hazards at the bridge site. The comparative resilience of the base-isolated bridge systems is evaluated by considering appropriate loss and recovery models. The resilience assessment of SMA-isolation systems represents the adequacy and effectiveness of the base-isolation technique. The findings of the present study evince that the seismic performance, resilience, and recovery trajectory of isolated bridges are contingent upon the type of isolation system employed. Furthermore, the study revealed that the employment of shape memory alloy isolation bearing confers a robust seismic performance and resilience upon bridges, by virtue of their high capacity for dissipating seismic energy.
Seismic Resilience Assessment of Highway Bridges Equipped with Shape Memory Alloy Isolation Bearings
https://orcid.org/http://orcid.org/0000-0002-8423-4650
https://orcid.org/http://orcid.org/0000-0001-9840-3438
Evaluating bridge seismic resilience is one of the vital components of transportation system resilience. Efficient and reliable seismic protection systems must be implemented to decrease economic losses and casualties during a seismic event. Among different seismic protection systems for bridges, one of the most effective systems is the seismic isolation bearings. This study explores the seismic resilience sensitivity of a base-isolated bridge equipped with shape memory alloy (SMA)-based smart isolation systems. Considering a reinforced concrete bridge isolated with SMA bearing and conventional lead rubber bearing, this study examines the impact of these isolation systems on the seismic resilience of bridges. The seismic vulnerability of the base-isolated bridges is evaluated through detailed finite element analysis under pairs of 22 far-field ground motions representing seismic hazards at the bridge site. The comparative resilience of the base-isolated bridge systems is evaluated by considering appropriate loss and recovery models. The resilience assessment of SMA-isolation systems represents the adequacy and effectiveness of the base-isolation technique. The findings of the present study evince that the seismic performance, resilience, and recovery trajectory of isolated bridges are contingent upon the type of isolation system employed. Furthermore, the study revealed that the employment of shape memory alloy isolation bearing confers a robust seismic performance and resilience upon bridges, by virtue of their high capacity for dissipating seismic energy.
Seismic Resilience Assessment of Highway Bridges Equipped with Shape Memory Alloy Isolation Bearings
Lecture Notes in Civil Engineering
Desjardins, Serge (editor) / Poitras, Gérard J. (editor) / El Damatty, Ashraf (editor) / Elshaer, Ahmed (editor) / Aghaeidoost, Vahid (author) / Billah, A. H. M. Muntasir (author)
Canadian Society of Civil Engineering Annual Conference ; 2023 ; Moncton, NB, Canada
2024-12-13
12 pages
Article/Chapter (Book)
Electronic Resource
English
| Taylor & Francis Verlag | 2018
| Taylor & Francis Verlag | 2025
Seismic Design of Highway Bridges using Multiple Types of Isolation Bearings
| British Library Conference Proceedings | 2003