论文标题
屈服结构的地震响应与摇摆壁搭配补充阻尼
Seismic Response of Yielding Structures Coupled to Rocking Walls with Supplemental Damping
论文作者
论文摘要
鉴于将框架结构耦合到坚固的摇摆壁的耦合可以强制执行第一模式响应，因此本文研究了沿其侧面的补充阻尼（滞后或线性粘度）的屈服于屈服的单度振荡器的动态响应。完整的非线性运动方程是得出的，该研究在非弹性光谱方面提出了地震反应分析。研究表明，对于具有抗野星周期的结构T1 <1.0 s，即使使用了大型阻尼值，沿摇摆壁侧面补充阻尼的作用也很边缘。该研究发现，偶尔抑制反应匹配或超过未阻尼反应的研究。但是，当这种情况发生时，超级是边缘的。该论文得出的结论是，对于强度少于其重量的强度的结构，不建议沿摇摆壁的侧面使用补充阻尼，并不建议使用屈服结构。该论文表明，沿摇摆壁的侧面进行补充阻尼可能对较长的捕食期（例如T1> 1.0 s）的结构有一些有限的有益作用。然而，当使用较大的滞后或粘性阻尼值时，未观察到明显的进一步响应。
Given that the coupling of a framing structure to a strong, rocking wall enforces a first-mode response, this paper investigates the dynamic response of a yielding single-degree-of-freedom oscillator coupled to a rocking wall with supplemental damping (hysteretic or linear viscous) along its sides. The full nonlinear equations of motion are derived, and the study presents an earthquake response analysis in term of inelastic spectra. The study shows that for structures with preyielding period T1<1.0 s the effect of supplemental damping along the sides of the rocking wall is marginal even when large values of damping are used. The study uncovers that occasionally the damped response matches or exceeds the undamped response; however, when this happens, the exceedance is marginal. The paper concludes that for yielding structures with strength less than 10% of their weight the use of supplemental damping along the sides of a rocking wall coupled to a yielding structure is not recommended. The paper shows that supplemental damping along the sides of the rocking wall may have some limited beneficial effects for structures with longer preyielding periods (say T1>1.0 s). Nevertheless, no notable further response reduction is observed when larger values of hysteretic or viscous damping are used.
