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<p>Quasi-static experiments and analytical investigations of ultra-high-strength bars (UHSB) reinforced walls with two shear span ratios of 1.5 and 2.2, were conducted. The hysteretic responses of test walls in terms of damage evolution, load–displacement curves, curvature profiles, reinforcement strain, and residual drift ratio were explored. Experimental results indicated that all test walls exhibited drift-hardening behavior. Specimens achieved a maximum residual drift ratio of 0.27% before 2% drift ratio, satisfying the limit value of 0.5%. The calculation of hysteresis curves calculation of the test walls was conducted considering the weak bond behavior of UHSB and verified by the experimental results.</p>

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Cyclic behavior of slender and mid-rise resilient recycled aggregate concrete walls: Experiment and theoretical analysis

  • 期刊论文

  • 发表日期：

    2025年9月20日

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  • Man Zhang,
  • Jianwei Zhang,
  • Yuping Sun,
  • Hongying Dong

摘要

Quasi-static experiments and analytical investigations of ultra-high-strength bars (UHSB) reinforced walls with two shear span ratios of 1.5 and 2.2, were conducted. The hysteretic responses of test walls in terms of damage evolution, load–displacement curves, curvature profiles, reinforcement strain, and residual drift ratio were explored. Experimental results indicated that all test walls exhibited drift-hardening behavior. Specimens achieved a maximum residual drift ratio of 0.27% before 2% drift ratio, satisfying the limit value of 0.5%. The calculation of hysteresis curves calculation of the test walls was conducted considering the weak bond behavior of UHSB and verified by the experimental results.