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制作了12根高钛重渣骨料高强混凝土缩比模型柱,进行了拟静力试验。试验轴压比分为0.3和0.5两种;考虑了矩形配箍、十字拉筋复合箍和双矩形复合箍3种配箍方式,其体积配箍率分别为1.38%,1.56%和1.42%;主筋的配筋率分为2.01%和2.26%两种;高钛重渣骨料高强混凝土的强度等级分为C52.5和C68.8两种。对高钛重渣骨料混凝土的滞回曲线、骨架曲线、耗能能力、延性、层间位移角、刚度退化和强度退化进行了分析。研究表明高钛重渣骨料高强混凝土柱的抗震性能与普通骨料高强混凝土柱基本相当。
12 high titanium heavy slag aggregate high-strength concrete shrinkage model columns were made and the quasi-static test was carried out. The test axial compression ratio is divided into two types of 0.3 and 0.5. Considering the three kinds of hoop ways of rectangular hoop, cross hoop composite hoop and double rectangular composite hoop, the volume hoop ratio is 1.38%, 1.56% and 1.42% respectively; Of the reinforcement ratio is divided into two kinds and 2.01% and 2.26%; high strength titanium heavy aggregate concrete strength grades are divided into C52.5 and C68.8 two. Hysteresis curves, skeleton curves, energy dissipation capacity, ductility, interlayer displacement angle, stiffness degradation and strength degradation of high titanium heavy-weight aggregate concrete were analyzed. The results show that the seismic performance of HSC columns with high titanate heavy slag is basically the same as those of ordinary high-strength concrete columns.