摘要
为了研究方钢管约束再生塑料混凝土短柱在轴压作用下的性能退化规律,以再生塑料取代率和混凝土强度为变化参数,完成了7个试件的轴压试验,并分析其能量耗散、刚度退化的演化过程。研究结果表明:再生塑料的掺入的确可以改善方钢管混凝土柱的延性,但其极限承载力会有所降低;随着再生塑料取代率的增加,方钢管约束再生塑料混凝土短柱的耗能能力先减小后增大,但其刚度却不断下降,相关结论可为工程设计提供参考。
In order to study the performance degradation of square steel tube confined recycled plastic concrete short columns under axial compression,7 specimens are designed for axial compression test with recycled plastic replacement ratio and concrete strength as the main parameters. The evolution of energy dissipation and stiffness degradation is analyzed. The research results show that recycled plastic can improve the ductility of square steel tube confined concrete column, but its ultimate bearing capacity will be reduced. With the increase of recycled plastic replacement, the energy-dissipating capacity of square steel tube confined recycled plastic concrete short columns will be reduced firstly and then increased. It can provide references for engineering design.
出处
《四川建筑科学研究》
北大核心
2016年第6期1-3,共3页
Sichuan Building Science
基金
国家自然科学基金资助项目(51368001)
中国博士后基金资助项目(2014M562132)
江西省青年科学基金资助项目(20142BAB216002)
江西省科技支撑计划资助项目(20151BBG70012)
江西省重点研发计划项目(20161BBH80045)
江西省教育厅科技项目(GJJ150586)
江西省新能源工艺与装备工程技术研究中心开放基金项目(JXNE-2014-08)
中南大学博士后基金资助项目
关键词
再生塑料混凝土
取代率
混凝土强度
耗能
刚度
recycled plastic concrete
replacement ratio
concrete strength
energy consumption
stiffness
