Review on seismic resilient bridge structures

Abstract

Bridge structures are the important part of lifeline engineering, which are easy to lose their traffic function when subjected to strong earthquakes. Seismic resilient bridge structures are that do not require repair or can be restored to normal operating condition with minor repair after an earthquake, which are mainly characterized by self-centering capacity, damage control capacity and easy repair. Therefore, the bridge structures with seismic resilience have become one of the research hotspots in bridge engineering due to the excellent characteristics. This paper firstly reviews the development of bridge seismic design theory, and then highlights the current status of research on bridge structures with seismic resilience. The seismic resilient bridge structures are divided into rocking bridges, bridges with replaceable members and bridges with high-performance materials, according to the method to achieve the performance recovery of bridge structures. Then the research status of these three kinds of seismic resilient bridge structures is reviewed and summarized systematically. A large number of experimental studies and numerical simulations have presented that the seismic resilient bridge structures have excellent performance recovery capability. In addition, this paper also summarizes the current research status of performance evaluation and design methods of seismic resilient bridge structures, and presents practical engineering applications of typical seismic resilient bridge structures. Finally, the future research directions and development trends of seismic resilient bridge structures are prospected.

Prioritizing Bridges for Seismic Resilience Enhancement: A Case Study of Algeria

“…Bridge damage and collapse result in road closures, isolation of areas and cities, disruption of transportation and commerce, and even difficulties for emergency and security interventions. It becomes challenging for rescue teams to reach affected areas during natural disasters such as earthquakes and floods, as well as human-made disasters such as explosions and collisions, as bridges are considered one of the weakest and most accident-prone points (Chen et al, 2023;Dong et al, 2022;Gidaris et al, 2022).…”

Constant ductility inelastic displacement ratio spectra of shape memory alloy-friction self-centering structures based on a hybrid model

“…However, previous strong earthquakes have proved that the action of strong earthquakes would lead to significant plastic deformation and residual deformation of structures. Excessive residual deformation will cause structures to lose their function and make it difficult to restore their function (Dong et al 2022;Chen et al 2016). At present, residual deformation has been used as an important indicator to measure the post-earthquake resilience and seismic performance level of structures in performance-based seismic design (Zhong et al 2022).…”