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<p>An isolator is a seismic device that reduces the transfer of earthquake forces to a structure by adding flexibility and dissipating energy, effectively decoupling it from ground motion. This enhances structural performance by minimising damage, ensuring safety, and maintaining functionality during seismic events. This project focuses on optimising energy dissipation and improving the seismic resilience of RCC structures through advanced design methodologies and performance evaluation using analytical tools. This study develops an optimal design methodology to protect both structural segments divided by the inter-story isolation system, optimising energy dissipation by the isolation system relative to the total input energy. The research evaluates using lead rubber bearings to improve seismic performance in a six-story moment-resisting RC building, assuming a linear elastic response under dynamic excitations. Using SAP2000, non-linear time history analysis was conducted to analyse seismic responses, focusing on RC structures with non-linear dampers arranged in the inter-story configuration.</p>

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Optimal energy based seismic design of inelastic tuned mass damper

  • 期刊论文

  • 发表日期：

    2025年6月28日

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  • Mohan K. Rahekwal,
  • Atulkumar Manchalwar,
  • P. B. Nangare

摘要

An isolator is a seismic device that reduces the transfer of earthquake forces to a structure by adding flexibility and dissipating energy, effectively decoupling it from ground motion. This enhances structural performance by minimising damage, ensuring safety, and maintaining functionality during seismic events. This project focuses on optimising energy dissipation and improving the seismic resilience of RCC structures through advanced design methodologies and performance evaluation using analytical tools. This study develops an optimal design methodology to protect both structural segments divided by the inter-story isolation system, optimising energy dissipation by the isolation system relative to the total input energy. The research evaluates using lead rubber bearings to improve seismic performance in a six-story moment-resisting RC building, assuming a linear elastic response under dynamic excitations. Using SAP2000, non-linear time history analysis was conducted to analyse seismic responses, focusing on RC structures with non-linear dampers arranged in the inter-story configuration.