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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 study the mechanical properties and failure modes of a RPC prestressed concrete column under compression, 10 RPCs with different slenderness ratios were tested under axial compression. Observe the process of stress and damage characteristics. The results show that the main failure modes of RPC column are the failure of compression material, the failure of both compression and buckling and the buckling failure. The ultimate bearing capacity of RPC column is mainly related to the slenderness ratio and increases with the slenderness ratio Decrease On the basis of experimental research and analysis, the stability coefficient of RPC column was given and compared with the stability coefficient of ordinary concrete column under axial compression.