摘要
为研究高温和骨料类型对钢筋混凝土边节点抗震性能的影响,分别针对硅质和钙质两种不同骨料的RC边节点进行了高温后的低周反复载荷试验,分析了高温后硅质和钙质骨料RC边节点在低周反复载荷作用下的承载能力、破坏形态、延性指标和耗能能力的变化规律。结果表明:相对于钙质骨料混凝土边节点,硅质骨料的承载力退化较少,梁柱相对转角偏小,高温核心区剪切变形较小,证实硅质骨料混凝土边节点有更好的弹塑性性能、耗能能力及抗震性能。
The effects of high temperature on seismic behaviour of RC joints were investigated using the low cyclic reversed loading tests on reinforced concrete joints with two different coarse aggregates at different temperatures.The failure models,mechanical behaviours,ductility index and energy dissipation capacity of the specimens were obtained from the study.The results showed that the siliceous aggregate improves the plastic deformation,energy dissipation capacity and seismic behaviour of the joints comparing to the calcareous aggregate joints.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2010年第6期1070-1073,共4页
Journal of Liaoning Technical University (Natural Science)
基金
国家自然科学基金资助项目(59978008)
关键词
高温
骨料
边节点
低周反复载荷
抗震性能
high temperature
aggregates
exterior joint
low cyclic reversed loading
seismic behaviour
