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<p>Ensuring the seismic resilience of structural components is essential in earthquake-prone regions to prevent catastrophic failures. Ordinary Concrete Shear Walls are widely used for lateral force resistance but suffer from brittle failure and limited ductility under high seismic stress. This study investigates the seismic performance of shear walls enhanced with Engineered Cementitious Composites (ECC), an advanced fiber-reinforced material known for its superior ductility, energy dissipation, and crack resistance. Two 1:3 scale shear wall models, one made of conventional concrete and the other incorporating ECC at the plastic hinge region were subjected to quasi-static lateral loading. Key performance metrics, including crack propagation, displacement capacity, hysteresis behavior, and energy dissipation, were analyzed. The ECC shear wall exhibited significantly improved seismic behavior, demonstrating higher ductility, delayed crack initiation, and enhanced energy absorption compared to the OCSW. The results demonstrated that the ductility ratio of ECC shear wall is 14.3% higher than ordinary concrete shear wall. These findings highlight the potential of ECC to enhance earthquake resistance in structural applications, advocating for its broader adoption in seismic design and retrofitting strategies.</p>

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Seismic response of hybrid shear walls: the role of ECC in structural resilience

  • 期刊论文

  • 发表日期：

    2025年10月21日

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  • Mashal Shah Jehan,
  • Khan Shahzada,
  • Umar Ahmad Noor,
  • Abdul Halim Halimi,
  • Zhao-Dong Xu

摘要

Ensuring the seismic resilience of structural components is essential in earthquake-prone regions to prevent catastrophic failures. Ordinary Concrete Shear Walls are widely used for lateral force resistance but suffer from brittle failure and limited ductility under high seismic stress. This study investigates the seismic performance of shear walls enhanced with Engineered Cementitious Composites (ECC), an advanced fiber-reinforced material known for its superior ductility, energy dissipation, and crack resistance. Two 1:3 scale shear wall models, one made of conventional concrete and the other incorporating ECC at the plastic hinge region were subjected to quasi-static lateral loading. Key performance metrics, including crack propagation, displacement capacity, hysteresis behavior, and energy dissipation, were analyzed. The ECC shear wall exhibited significantly improved seismic behavior, demonstrating higher ductility, delayed crack initiation, and enhanced energy absorption compared to the OCSW. The results demonstrated that the ductility ratio of ECC shear wall is 14.3% higher than ordinary concrete shear wall. These findings highlight the potential of ECC to enhance earthquake resistance in structural applications, advocating for its broader adoption in seismic design and retrofitting strategies.