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All Journal Journal of Novel Engineering Science and Technology
Yusril Abdurrahman
University of Brawijaya
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Environmental Science Mechanical Engineering

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Evaluating Friction Dampers for Seismic Protection of Non-structural Elements in Hospitals Yusril Abdurrahman; Ari Wibowo; Achfas Zacoeb
Journal of Novel Engineering Science and Technology Vol. 5 No. 02 (2026): Journal of Novel Engineering Science and Technology
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56741/jnest.v5i02.1178

Abstract

This study evaluates the effectiveness of friction dampers in improving the seismic performance of non-structural components in hospital buildings. A five-story reinforced concrete hospital, intentionally modeled to exceed allowable drift limits, was analyzed using nonlinear time history analysis under three earthquake scenarios: BSE-1E (225-year), BSE-2E (975-year), and BSE-2N (2475-year), assuming soft soil conditions. Non-structural components were classified as drift- or acceleration-sensitive, with damage probabilities assessed using fragility curves and categorized into risk classes. Results show that friction dampers significantly reduced damage probability for acceleration-sensitive components up to 74% for cabinet contents under BSE-1E. However, drift-sensitive elements remained vulnerable, particularly in higher-intensity events, due to the building's flexible design and limited damper activation. While friction dampers improved global structural performance, their effectiveness declined with increasing seismic demand. These findings underscore the potential and limitations of friction dampers in retrofitting hospital buildings and highlight the need for careful damper sizing and consideration of alternative strategies to protect non-structural systems.
Co-Authors Achfas Zacoeb Ari Wibowo