【摘要】 根据作者开发研制的形状记忆合金丝-橡胶复合支座,建立了传统抗震结构和两种不同支座隔震结构体系的运动方程,并对某个实际工程四层钢框架结构进行了数值模拟,分析其在阪神波和ElCentro波作用下的时程反应。研究表明,SMA丝-橡胶复合支座是一种很有效的隔震装置,将它用于钢框架结构,能有效地减小结构的位移、速度及加速度时程反应,而对于加速度峰值较大的阪神波的隔震效果更为明显,说明该复合支座能有效地提供罕遇地震作用下钢结构的隔震效果。更多还原

【Abstract】 Motion equations of traditional earthquake resistant structure and shock isolation structure with different isolators were presented based on shape memory alloy(SMA)fiber-laminated rubber bearing developed by the authors.Numerical simulation of a four-floor steel-frame structure with different isolators was carried out,to analyze the seismic response of structure excited by Hanshin and El Centro waves.Analysis shows that SMA fiber-laminated rubber bearing works very well in shock isolation and the dynamic response,such as displacement,velocity and acceleration of steel-frame structure supported on it can be reduced effectively.The larger acceleration of seismic wave,the more remarkable of isolation effect,that is to say,SMA fiber-laminated rubber bearing makes isolation effect dramatically better when structure is excited by rare earthguake.更多还原