International Journal of Advance Civil Engineering and Technology ISSN: 3107-7374 (Online)

Authors: *Dr. Raghav Sharma, *Ms. Sweta Kumari

Abstract: Seismic-resistant design has become a pivotal component in modern civil engineering, particularly for structures located in seismically active regions. The integration of base isolation and tuned mass dampers (TMDs) offers a transformative approach to minimize structural vibrations and enhance safety. Base isolation systems function by decoupling the superstructure from ground motions, significantly reducing energy transfer during seismic events. Meanwhile, TMDs counteract vibrational energy by using a secondary mass-spring-damper system tuned to the structure’s natural frequency. This paper explores the fundamentals, applications, performance advantages, and future potential of combining base isolation with TMDs. It highlights real-world case studies and experimental results demonstrating improved damping, cost-effectiveness, and resilience of hybrid systems. As seismic design criteria become more rigorous, the synergy between these technologies can revolutionize how urban infrastructure is protected against earthquakes.

Keywords: Seismic design, base isolation, tuned mass dampers, structural vibration, earthquake-resistant structures, damping technologies.