将形状记忆合金(SMA)轴心埋置于混凝土构件中,着重研究SMA使轴心构件产生预应力和变形的性能及影响驱动效果的主要因素。在试验基础上,对SMA在周围混凝土约束下的本构模型进行了理论探索。研究表明:SMA在加热逆相变过程中可以实现对混凝土轴心构件施加预应力,可以控制混凝土构件的变形;初始预应变值及通电激励模式对变形性能或预应力效果有影响。 The shape memory alloy (SMA) shaft is embedded in the concrete member, and the main factors that affect the driving effect of the SMA member are prestressed and deformed by SMA. Based on the experiment, the constitutive model of SMA under the confinement of surrounding concrete is theoretically explored. The results show that SMA can prestress concrete members during heating and reverse phase transformation, and can control the deformation of concrete members. The initial pre-strain value and energized excitation mode have an impact on the deformation performance or prestressing effect.