The influence of bond-slip behavior, shown by pinched hysteretic curves in the inelastic response of degrading structural systems, is investigated in this paper. Inelastic response spectra are calculated and compared for deteriorating structures with and without manifestation of bond-slip. The response spectra are generated by using a smooth hysteretic model with distinct degrading parameters that are calibrated to the generic inelastic envelopes. In addition to the ductility demands, degraded residual strengths and stiffness of structural systems after an earthquake are considered as the relevant response measures. These measures can serve as design parameters for structures that should remain functional after an extreme event. Based on the response spectra analyses, it is found that nonlinear responses of degrading structural systems with bond-slip develop larger ductility demands and greater loss of strength and stiffness than the responses without bond-slip. Numerical results show that, ductility demand is increased up to 25–100% with consideration of slip in the model, as well as residual strength and stiffness decreased up to almost half.

中文翻译：

---

粘结滑移对结构系统非弹性动力响应的影响

本文研究了在退化结构系统的非弹性响应中由收缩滞后曲线显示的粘结滑移行为的影响。计算非弹性响应谱并比较有和没有粘结滑移表现的恶化结构。响应谱是通过使用平滑滞后模型生成的，该模型具有不同的退化参数，这些参数被校准到通用非弹性包络。除了延性要求外，地震后结构系统的剩余强度和刚度下降也被视为相关的响应措施。这些措施可以作为在极端事件后应该保持功能的结构的设计参数。基于响应谱分析，结果表明，与没有粘结滑移的响应相比，具有粘结滑移的退化结构系统的非线性响应会产生更大的延展性要求和更大的强度和刚度损失。数值结果表明，考虑到模型中的滑移，延性需求增加了 25-100%，残余强度和刚度降低了近一半。