Development of precast prestressed concrete structures with damage controlling capability usingy energy dissipaters at the interface between members

在预制混凝土构件之间的界面处放置了耗能装置，以利用界面处的间隙开口。裂缝开口通常被认为是预制预应力混凝土结构的缺点，但损伤控制系统利用了这一特性。本文提出的预制预应力结构体系由于具有自定心的特性，可以使地震时的响应位移和震后的残余位移最小。采用波纹剪切板作为耗能装置。波纹剪力板的抗剪刚度大，轴向刚度可忽略不计，便于在结构体系中优化其尺寸和位置。剪力板放置在梁之间作为中间柱。试验结果和分析模型表明，剪力板能有效地耗散地震能量，但不会抑制预制预应力混凝土结构的自定心功能。提出了一种利用容量设计谱预测多层建筑结构地震反应的简单方法。该程序考虑了简化系统的程序、MAP分析程序以及等效单自由度系统中的高模态效应和多重阻尼效应。提出了一种后张连接系统，使预制混凝土构件在未来可以重复使用。试验量化了剪切能力、拆卸能力和重复使用能力。提出了预应力混凝土构件和结构残余位移的预测公式。该方程基于平衡和塑性铰长度。预应力筋的作用也在方程中得到了明确的表达。

Energy dissipating devices were placed at the interface between precast concrete members to take advantage of gap openings at the interfaces. Gap openings are ordinarily considered to be disadvantage of precast prestressed concrete structures but the damage control system utilizes this characteristics. The proposed precast prestressed structural system can minimize the response displacement during the seismic event and the residual displacement after that due to the self-centering characteristics of the system.A corrugated shear panel was used as an energy dissipating devices. The corrugated shear panel has large shear stiffness and negligible axial stiffness, and hence, it is easy to optimize its size and location in the structural system. The shear panels are placed between beams as intermediate columns. The experimental results and analytical model demonstrated that the shear panels efficiently dissipate seismic energy but does not inhibit the self-centering function of the precast prestressed concrete structures.A simple procedure was proposed to predict the seismic response of multistory building structures using capacity design spectra. The procedure considers the procedure to simplify the system, MAP analytical procedure, and the higher mode effects and multiple damping effects in a equivalent single degree of freedom system.A post-tenstioned connection system was proposed so that the precast concrete members can be reused in the future. Experiment was conducted to quantify the shear capacity, disassembling capability, and the reusability.An equation to predict the residual displacement was proposed for the prestressed concrete members and structures. The equation is based on the equilibrium and the plastic hinge length. The effect of prestressing tendons are also explicitly expressed in the equation.