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October 28, 2021Applied SciencesOpen Access

Comparison of Strengthening Solutions with Optimized Passive Energy Dissipation Systems in Symmetric Buildings

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Authors

CMCharbel MradMTMagdalini TitirlaWLWalid Larbi

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Overview

Computational study demonstrates height-dependent performance of passive energy dissipation systems in reinforced concrete buildings, highlighting tailored damper selection for seismic protection.

Key Points

  • To compare the seismic response of symmetric reinforced concrete buildings of varying heights strengthened with optimized passive energy dissipation systems.
  • Modeled three symmetric reinforced concrete residential buildings with four, nine, and sixteen stories.
  • Conducted 94 nonlinear dynamic analyses using seven recorded and synthetic seismic accelerograms.
  • Optimized tuned mass damper, viscous damper, and friction damper configurations to minimize roof displacement, base shear loads, and interstory drift.
  • Tuned mass dampers (TMDs) showed superior effectiveness in taller, flexible structures, with multidirectional pendulum TMD configurations outperforming conventional designs.
  • Viscous dampers yielded the most substantial seismic demand reductions in mid-rise (nine-story) structures.
  • Friction dampers improved seismic performance across all building heights, particularly reducing displacements in low-rise (four-story) buildings.

Cite This Study

Mrad et al. (2021) studied this question.

synapsesocial.com/papers/69d947089873513554835bfahttps://doi.org/10.3390/app112110103
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