Journal of Materials and Engineering Structures
Volume 13, Numéro 3, Pages 407-432
2026-09-30

Enhancing Seismic Resilience Of Curved Bridges Using Shape Memory Alloy With Rubber Bearings



Authors : Kalyani Anil P. . Soni Devesh P. .

Abstract

Shape Memory Alloys (SMA), owing to their superelastic behavior, play a significant role in improving structural performance during seismic events. This study examines the seismic response of a curved bridge isolated with conventional elastomeric rubber bearings (ERB) and shape memory alloy rubber bearings (SMARB) under different ground motion sets. The bridge model consists of a three-span continuous concrete box girder superstructure supported on piers and abutments. Six recorded earthquake ground motions three near-fault and three far-field were considered. The coupled nonlinear equations of motion for the isolated system were solved in incremental form using Newmark’s step-by-step method under biaxial excitation in the Seismostruct environment. Sensitivity analysis was performed by varying damping ratios (10–35%) and isolation periods (1.5–3.0s), with key response parameters including pier torsional moment, force transfer to piers, deck displacement, and isolator displacement. Results indicate that SMARB consistently reduces isolator and deck displacements as well as force transfer to piers compared to ERB, while exhibiting higher torsional moments. Overall, the integration of SMA with conventional rubber bearings proves effective for enhancing seismic resilience of curved bridges, provided that isolation parameters are carefully optimized.

Keywords

Curved Bridge ; Base-Isolation ; Shape Memory Alloys ; Elastomeric Rubber Bearing ; Non-linear Dynamic

Les articles similaires

Thermal, Electrochemical And Mechanical Properties Of Shape Memory Alloy Developed By A Conventional Processing Route

Ahmad T. .  Malik A. N. .  Raza S. S. .  Kamran M. .  Manzoor M. U. .  Salman A. .  Hussain F. .  Riaz F. .  Ahmad R. .  Akhtar M. N. . 
pages 847-860.

Study On Structural Analysis Of Composite Based On Isoprene Rubber With The Participation Of Butadiene-nitrile Rubber

Rahimova Sabina .  Amirov Fariz .  Movlayev Ibrahim .  Mammadov Shiraz .  Khankishiyeva Rana . 
pages 50-54.

Sensitivity Study Of Load-dependent Ritz Vectors On Modal And Seismic Responses Of Cable Stayed Bridges

Ouanani M. .  Tiliouine B. .  Belkheri N. . 
pages 113-124.

Study Of The Behavior Of Bridges Under Seismic Loads Considering Soil-structure Interaction

Baheddi Mohamed .  Youb Youcef . 
pages 71-77.

2d Elastic Finite Element Method (fem) For Deformation Analysis Of The Seismic And Post-seismic Cheliff (algeria) Geodetic Network

Gourine B . 
pages 19-26.

Formats de citation