The member and beam-column joint mechanical behavior of recycled aggregate concrete-filled square steel tube(RACFSST) were summarized in terms of material and member test,numerical simulation,theoretical study.The mechanical behavior of RACFSST axial compression short column,compression long column of RACFSST,seismic and hysteretic behavior of RACFSST column,basic mechanical behavior and seismic behavior of RACFSST beam-column joint,flexural and shear behavior of RACFSST beam were analyzed and summarized.Afterward,the influence of recycled concrete strength grade and recycled coarse aggregate replacement ratio to RACFSST bond-slip behavior were investigated and discussed.Finally,several key aspects are put forward,RACFSST member and beam-column joint mechanical behavior still need to research include that research the impact resistance and fire behavior of RACFSST column.Research the hysteretic behavior of RACFSST beam-column joint.%从材料与构件试验、仿真分析和理论研究三个方面,总结归纳了方钢管再生混凝土构件及梁柱节点受力性能的研究进展.分析归纳了方钢管再生混凝土轴压短柱受力性能、方钢管再生混凝土受压长柱受力性能、方钢管再生混凝土柱的抗震性能和滞回性能、方钢管再生混凝土梁柱节点的基本受力性能和抗震性能、方钢管再生混凝土梁的抗弯性能和抗剪性能;分析探讨了再生混凝土强度等级、再生粗骨料取代率对方钢管再生混凝土界面黏结滑移性能的影响.最后提出了方钢管再生混凝土构件及梁柱节点受力性能亟需研究的若干重要方面,包括:研究方钢管再生混凝土柱的抗冲击性能和抗火性能、方钢管再生混凝土柱-钢梁节点的滞回性能等.
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