CAJ | 학술논문

为研究方钢管再生混凝土柱的抗震性能，以再生粗骨料取代率为变化参数，设计制作了4根不同取代率的试件，对其进行拟静力试验，研究分析其破坏形态、滞回曲线、骨架曲线、延性、耗能能力、刚度退化等力学性能指标。研究结果表明：方钢管再生混凝土柱的破坏形态与方钢管普通混凝土柱相似，均为柱脚的鼓曲破坏；随着再生骨料取代率的增大，试件的极限承载力会有所减小，但减小幅度不大；再生粗骨料取代率对试件的延性、耗能性能、刚度退化则没有明显的影响。
위연구방강관재생혼응토주적항진성능，이재생조골료취대솔위변화삼수，설계제작료4근불동취대솔적시건，대기진행의정력시험，연구분석기파배형태、체회곡선、골가곡선、연성、모능능력、강도퇴화등역학성능지표。연구결과표명：방강관재생혼응토주적파배형태여방강관보통혼응토주상사，균위주각적고곡파배；수착재생골료취대솔적증대，시건적겁한승재력회유소감소，단감소폭도불대；재생조골료취대솔대시건적연성、모능성능、강도퇴화칙몰유명현적영향。
In order to study the seismic behavior of recycled-aggregate-concrete-filled square steel tube columns, four specimens with different replacement rates were test under the cyclic reversed loading. The destruction pattern and hysteretic performance, the hysteretic curves, skeleton curve, ductility, energy dissipation and stiffness degradation were analyzed. Research findings indicate that the destruction mode of recycled-aggregate-concrete-filled square steel tube columns is similar to that of concrete-filled square steel tubular columns. With the increase of the replacement ratio, the ulti-mate bearing capacity and measured value of he will be reduced, but the reduction is very tiny. The replacement ratio of recycled aggregate has no obvious effect on the ductility, energy dissipation and stiffness degradation.