应用SMA阻尼器的巨型框架悬挂结构减震分析
|
摘要
应用形状记忆合金(Shape memory alloy简称SMA)的超弹性和阻尼特性设计了一种新型SMA阻尼器。介绍了这种阻尼器的构造和工作原理;建立了SMA阻尼器的力学分析模型。采用结构动力学有限元方法,分别建立了应用SMA阻尼器控制和无阻尼器控制的巨型框架悬挂结构的三维实体有限元模型,对两种结构体系进行了地震时程分析。结果表明,应用SMA阻尼器控制的结构体系能有效地减小主-子结构的相对和绝对位移、相对和绝对加速度响应。保证了结构的安全性和使用的舒适性,具有很好的减震效果。
In this paper a new Shape memory alloy(SMA) damper based hyperelastic and damper properties of SMA is designed.The configuration and operation principle of the SMA damper are presented and the mechanical model of the SMA damper is built.By the structural dynamic finite element method,the 3d solid FE models of Mega-frame suspended structure with and without the control of SMA damper are built and the time history analysis and response spectrum analysis of the two systems under earthquake are carried out.The results show that the application of SMA damper can effectively reduce the relative and absolute displacement and acceleration of the Mega-frame suspended structure and its substructures.Also, the control regularity of the SMA damper for seismic response of Mega-frame suspended structure is further discussed through adjusting the damper value of the SMA damper.
In this paper a new Shape memory alloy(SMA) damper based hyperelastic and damper properties of SMA is designed.The configuration and operation principle of the SMA damper are presented and the mechanical model of the SMA damper is built.By the structural dynamic finite element method,the 3d solid FE models of Mega-frame suspended structure with and without the control of SMA damper are built and the time history analysis and response spectrum analysis of the two systems under earthquake are carried out.The results show that the application of SMA damper can effectively reduce the relative and absolute displacement and acceleration of the Mega-frame suspended structure and its substructures.Also, the control regularity of the SMA damper for seismic response of Mega-frame suspended structure is further discussed through adjusting the damper value of the SMA damper.
引文
[1]刘郁馨,吕志涛,袁发顺.多高层砼悬挂体系建筑结构体系及受力性质[J].工程力学,1996(增刊):542-546.
[2]赵艳秋.悬挂式结构核筒的受力分析[C]//第十三届全国高层建筑结构学术交流会论文集.北京:中国建筑科学研究院,1994:582-587.
[3]刘郁馨,张旭,吕志涛.悬挂楼层的动力反应分析[J].工程力学,1997(增刊):33-37.
[4]张晖,朱伯龙,苏少军.悬挂体系层间减震控制系统试验及分析[J].建筑结构学报,1997,18(5):59-65.
[5]梁启智,张耀华.巨型框架悬挂体系动力及减震性能分析[J].华南理工大学学报,1998,26(10):1-6.
[6]王奇,刘海卿.应用SMA-粘滞阻尼器的框架结构减震效果数值模拟分析[J].辽宁工程技术大学学报,2009(增刊):168-171.
[2]赵艳秋.悬挂式结构核筒的受力分析[C]//第十三届全国高层建筑结构学术交流会论文集.北京:中国建筑科学研究院,1994:582-587.
[3]刘郁馨,张旭,吕志涛.悬挂楼层的动力反应分析[J].工程力学,1997(增刊):33-37.
[4]张晖,朱伯龙,苏少军.悬挂体系层间减震控制系统试验及分析[J].建筑结构学报,1997,18(5):59-65.
[5]梁启智,张耀华.巨型框架悬挂体系动力及减震性能分析[J].华南理工大学学报,1998,26(10):1-6.
[6]王奇,刘海卿.应用SMA-粘滞阻尼器的框架结构减震效果数值模拟分析[J].辽宁工程技术大学学报,2009(增刊):168-171.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心