To implement the energy-based seismic design, it is important to quantify the energy dissipation within a structure. This paper evaluates the hysteretic energy demand (E_H) within self-centering concrete frames (SCCF) with hybrid joints. Twelve SCCFs with different stories and self-centering parameters λ were designed. Two-dimensional analytical models were developed in OpenSees and subjected to forty-four far-field ground motions to assess the energy distribution within structures. The result shows that SCCF dissipating input energy (E_I) depends mainly on the hysteresis of the beam-column joints and column bases at the first floor. The proportions of E_H within different components are closely related to the peak ground acceleration (PGA) and the self-centering parameter λ defined in this paper. E_H in middle floors decreases proportional to the PGA, while E_H in upper floors changes reversely. Meanwhile, E_H tends to distribute more evenly along the height in frames with more stories. Finally, empirical equations to quantify the distribution of E_H within self-centering structures are proposed. The results show that the proposed approaches can be adopted to conservatively estimate the distribution of E_H for SCCFs with hybrid joints.

为了实施基于能量的抗震设计，量化结构内的能量耗散很重要。本文评估了带有混合节点的自定心混凝土框架 (SCCF) 内的滞后能量需求 ( E _H )。设计了 12 个具有不同楼层和自定心参数λ 的SCCF 。二维分析模型是在OpenSees中开发的，并受到44 次远场地面运动的影响，以评估结构内的能量分布。结果表明，SCCF耗散输入能量（E _I）主要取决于首层梁柱节点和柱底的滞后。E _H的比例不同分量内的峰值加速度 (PGA) 和本文定义的自定心参数λ密切相关。中层的E _H与PGA成正比下降，而上层的E _{H 则}相反地​​变化。同时，E _H倾向于在具有更多故事的帧中沿高度更均匀地分布。最后，提出了量化E _H在自定心结构内的分布的经验方程。结果表明，所提出的方法可用于保守估计具有混合关节的 SCCF的E _H分布。