活性粉末混凝土柱轴心受压试验研究  

Experimental study on reactive powder concrete columns under uniaxial compression

作　　者：唐昌辉[1] 刘冬明[1] 

机构地区：[1]湖南大学土木工程学院,长沙410082

出　　处：《中国科技论文》2016年第1期7-11,共5页China Sciencepaper

基　　金：国家自然科学基金资助项目(50978091);高等学校博士学科点专项科研基金资助项目(20120161110022)

摘　　要：为研究一种以受压为主的新型建筑材料活性粉末混凝土(RPC)轴心受压柱的受力性能和破坏形态,对10个不同长细比的RPC柱进行了轴心受压试验,观察其受力过程及破坏特征。结果表明:RPC柱的主要破坏形态有受压材料破坏、受压与屈曲兼有的破坏及屈曲失稳破坏;RPC柱的极限承载力主要与长细比有关且随长细比的增大而减小。在试验研究与分析的基础上,给出了RPC轴心受压柱稳定系数,并与普通混凝土轴心受压柱稳定系数进行了比较分析。In order to investigate the mechanical performances and failure patterns of reactive powder concrete RPC columns under uniaxial compression,ten RPC columns with various slenderness ratios were tested.The failure process and patterns were observed.It has been shown that the compression failure,compression and bending failure and buckling stability failure with bending are the major modes of failure.The ultimate load is related to the slenderness ratio and decreases as the increasing of the slenderness ratio.Based on the experimental study and analysis,the stability coefficient of RPC concrete column with uniaxial compression is given and compared with the ordinary concrete column under the same loading conditions.

关 键 词：活性粉末混凝土 轴心受压 长细比 极限承载力 稳定系数 

分 类 号：TU375.3[建筑科学—结构工程]