方形CFRP钢管约束再生混凝土轴压长柱试验研究

摘要

Seven axially square CFRP steel tubular confined recycled aggregate concrete long columns were experimentally investigated to study their static behavior.The influence of the slenderness ratio,recycled coarse aggregate replacement ratio,layers of CFRP jackets ef-fect on the performance of axial compression.The test results show that the higher the recycled coarse aggregate content and the slenderness ratio,the greater the specimen ultimate bearing capacity is smaller,and the more the layers of CFRP jackets,the greater the specimen ulti-mate bearing capacity.%进行了7个方形CFRP钢管约束再生混凝土轴压长柱的静力试验，分析了长细比、再生粗骨料取代率、包裹CFRP布的层数对轴压性能的影响。试验结果表明，再生粗骨料取代率越高和试件长细比越大，试件极限承载力越小；包裹CFRP布的层数越多，试件极限承载力越大。