It talked about axial compression behavior of axial compression of ferrous tailing reinforced concrete short column.Short column of 5 strength grade are contained in the test with WC30,WC35,WC40,WC45 and WC50.And the test piece were made with 4 stirrup characteristic value to each strength grade,with the dimensions 300 mm×300 mm×1200 mm.Test data showed that the ferrous tailing concrete has the approximate axial bearing capacity with the natural sand concrete,and it can be computed by GB 50010—2010"The formula of code for design of concrete structures".At the same time,the effection of stirrup characteristic value to the performance of axial compression short column was analyzed.Research results showed that axial compression performance of short column will be improved significantly with the stirrup characteristic value no less than 0.2.%通过试验的方法来研究铁尾矿砂混凝土短柱的轴心受压性能.试验设计了WC30、WC35、WC40、WC45、WC505个强度等级的尾矿砂混凝土短柱,每个强度等级又分别按照4种不同的配箍特征值来制作试件,试件尺寸300 mm×300 mm×1200 mm.试验结果表明尾矿砂混凝土短柱具有和天然砂混凝土短柱接近的轴向承载力,并且该承载力可以按照GB 50010—2010《混凝土结构设计规范》中的轴压构件的承载力计算公式计算.同时本试验还重点分析了配箍特征值对短柱轴压性能的影响.研究结果表明当配箍特征值超过0.2的时候,短柱的轴压性能会得到明显改善.
展开▼
