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根据形状记忆合金(SMA)材料的热力学特性,提出了装有SMA拉索,利用其独特的相变伪弹性性能被动控制建筑结构地震响应的力学分析和计算模型,讨论了这种全新功能材料在结构抗震控制中的应用。通过有控结构与无控结构的地震响应分析,检验了SMA被动拉索的被动控制效果,探讨了其控制机理和规律。研究结果表明,SMA被动拉索不仅可以有效地减小和抑制结构的地震响应,而且性能可靠,构造简单,自适应能力强,因此在结构抗震控制中具有广阔的应用前景。
According to the thermodynamic properties of shape memory alloy (SMA) materials, a mechanical analysis and calculation model of passive control of seismic response of building structure with SMA cable and its unique phase transition pseudo-elastic property is proposed. The new functional material Application of Structural Seismic Control. Through the seismic response analysis of controlled structure and uncontrolled structure, the passive control effect of SMA passive cable was tested, and its control mechanism and law were discussed. The results show that SMA passive cable can not only effectively reduce and suppress the seismic response of the structure, but also have the advantages of reliable performance, simple structure and strong self-adaptability. Therefore, SMA passive cable has broad application prospects in structural seismic control.