摘要
通过对10根不同废弃骨料掺入百分比的再生混凝土梁进行结构构件的基本研究,了解废弃混凝土掺入量对梁的受弯承载力、变形性能等基本性能的影响。试验结果表明:再生混凝土梁与普通混凝土梁一样,其受弯过程中都要经历弹性、带裂缝工作、钢筋屈服和构件破坏三个阶段。在每级荷载作用下的跨中挠度变化与普通混凝土梁相似,废弃骨料掺入百分比对于再生混凝土梁的受弯承载力和变形性能影响不大。
It was mainly discussed the concrete structure of 10 recycled concrete beams with different percentage and the effect of the recycled concrete on the flexural capacity and the deformation of beams.Test results showed that similar to the natural aggregate concrete beams,the recycled aggregate concrete beams would go through three stages——the elasticity stage,the crack stage and the destroy stage.In each stage,the change of mid-span deflection of recycled aggregate concrete beams is similar to that of the natural aggregate concrete beams,and the percentage of the recycled aggregate of recycled concrete beams has only less impact on the deformation and yield.
出处
《工业建筑》
CSCD
北大核心
2009年第S1期864-867,共4页
Industrial Construction
基金
江苏省自然科学基金资助项目(BK200517)
关键词
再生混凝土
变形性能
挠度
recycled concrete
deformation performance
deflection
