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<p>Vibration control in tall buildings is a critical aspect of modern structural design, directly influencing safety, occupant comfort, and long-term durability. Due to their slender and flexible geometry, high-rise structures are especially susceptible to dynamic forces such as wind and seismic activity, which can induce resonance and lead to structural damage or collapse. One effective strategy for mitigating such vibrations involves the use of end shear walls specialized shear wall elements that connect the extremities of reinforced concrete core walls across all floors. These walls enhance diaphragm stiffness and reduce stress concentrations at shear wall ends, contributing to improved dynamic stability. This research examines how end shear walls affect the seismic behavior of two 30-story structures, utilizing far-field earthquake records and nonlinear dynamic analysis. The model incorporating end shear walls demonstrated a 22% reduction in peak acceleration, a 76% drop in variance, and a 51% decrease in standard deviation in the X-direction, as confirmed through SPSS analysis. Q-Q plots further revealed up to 38% vibration reduction, underscoring the effectiveness of end shear walls in enhancing seismic resilience and improving overall dynamic performance in high-rise structures.</p>

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Vibration control of reinforced concrete high-rise building with end shear walls under seismic loads

  • 期刊论文

  • 发表日期：

    2025年10月16日

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  • Mehran Akhavan Salmassi,
  • Paweł Ciężkowski,
  • Damian Markuszewski

摘要

Vibration control in tall buildings is a critical aspect of modern structural design, directly influencing safety, occupant comfort, and long-term durability. Due to their slender and flexible geometry, high-rise structures are especially susceptible to dynamic forces such as wind and seismic activity, which can induce resonance and lead to structural damage or collapse. One effective strategy for mitigating such vibrations involves the use of end shear walls specialized shear wall elements that connect the extremities of reinforced concrete core walls across all floors. These walls enhance diaphragm stiffness and reduce stress concentrations at shear wall ends, contributing to improved dynamic stability. This research examines how end shear walls affect the seismic behavior of two 30-story structures, utilizing far-field earthquake records and nonlinear dynamic analysis. The model incorporating end shear walls demonstrated a 22% reduction in peak acceleration, a 76% drop in variance, and a 51% decrease in standard deviation in the X-direction, as confirmed through SPSS analysis. Q-Q plots further revealed up to 38% vibration reduction, underscoring the effectiveness of end shear walls in enhancing seismic resilience and improving overall dynamic performance in high-rise structures.