To study the seismic behavior of recycled aggregate concrete filled steel tube (RACFST) frames infilled with recycled hollow block filler walls (RHBFW), four frame specimens were designed subjected to low cycle loading experiments. Through the test, the failure process and pattern of specimens were observed and the seismic performance indexes were obtained. The results show that the hysteretic curves of RACFST frames infilled with RHBFW are full; the equivalent viscous damping coefficients h_e of specimens when destroyed both exceed 0.2, and the interlayer displacement angle is between 1/34 and 1/33 when destroyed, meaning the frame structures having good energy dissipation and good collapse resistance abilities. The RAC beam section height has little effect on the ductility and stiffness degradation of specimens; however, the bearing capacities of specimens increase gradually with the increase of beam section height. The existence of RHBFW can be the first seismic defense line of RACFST frames, and they can improve the ductility of specimens, as well as the bearing capacities and initial elastic stiffness. Before RHBFW failed, the specimens with filler wall have better energy dissipation abilities than those without filler wall. After RHBFW failed, the specimens without filler wall have better energy dissipation abilities than those with filler wall.

中文翻译：

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填充再生空心砌块填充墙的再生骨料钢管混凝土框架抗震试验及性能指标研究

为了研究填充有再生空心砌块填料墙 (RHBFW) 的再生骨料钢管混凝土 (RACFST) 框架的抗震性能，设计了四个框架试件进行低周荷载试验。通过试验，观察了试件的破坏过程和破坏规律，得到了抗震性能指标。结果表明，填充了RHBFW的RACFST框架的滞后曲线是完整的；等效粘性阻尼系数h _e破坏时的试样数量均超过0.2，破坏时层间位移角在1/34～1/33之间，表明框架结构具有良好的能量耗散和抗倒塌能力。RAC梁截面高度对试件延性和刚度退化的影响不大；但随着梁截面高度的增加，试件的承载能力逐渐增加。RHBFW的存在可以作为RACFST框架的第一道抗震防线，可以提高试件的延性、承载力和初始弹性刚度。在 RHBFW 失效前，有填充壁的试件比没有填充壁的试件具有更好的能量耗散能力。RHBFW失败后，