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Orientation-Driven Enhancement of Fluid Viscous Dampers for High-Rise Resilience

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Abstract:

This study evaluates hybrid fluid viscous damper (FVD) layouts for seismic control of a 20-storey reinforced-concrete tower. Two retrofit configurations (C1, C2), each employing 120 FVDs with a combined damping capacity of approximately 60,000 kN·s/m per configuration, were modelled in ETABS as nonlinear link elements and subjected to nonlinear time-history analyses using representative ground motions. Device constitutive behavior was represented by a velocity-dependent law and model verification included explicit link spring/area settings to prevent silent unit-scaling of damper properties. Both hybrid layouts substantially reduce peak inter-story drifts and increase system energy dissipation, though performance varies by direction: relative to the undamped frame, C1 reduced peak drift by ≈28.7% in X and ≈44.6% in Y, while C2 reduced peak drift by ≈26.2% in X and ≈53.9% in Y. Damper contribution to seismic energy dissipation reached ≈47.3% for C1 and ≈45.6% for C2, with total (structural plus device) dissipation of ≈52.4% and ≈55.6%, respectively. Directional asymmetry is attributed to modal shapes and damper distribution. The results indicate that carefully arranged hybrid FVD systems can deliver significant, orientation-aware improvements to seismic resilience.

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Periodical:

Construction Technologies and Architecture (Volume 23)

Pages:

111-116

DOI:

https://doi.org/10.4028/p-OM7oMv

Citation:

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Online since:

May 2026

Authors:

Muhammad Adil Javaid*, Ahmed Saboor, Umer Shahzad, Tamjeed Attaullah, Muhammad Ali, Usama Afzal

Keywords:

Energy Dissipation, ETABS Nonlinear Link Modelling, Fluid Viscous Dampers, Hybrid Orientations, Inter-Story Drift Reduction, Nonlinear Damping, Seismic Response Control

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© 2026 Trans Tech Publications Ltd. All Rights Reserved

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