Rigid-Plastic Approximation to Predict Plastic Motion Under Strong Earthquakes
Rigid-Plastic Approximation to Predict Plastic Motion Under Strong Earthquakes
复制标题
预测强地震下塑性运动的刚塑性近似
DOI：
10.1002/1096-9845(200101)30:1
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
M. Porcu
中科院分区：
文献类型：
--
作者：
A. Paglietti;M. Porcu
结果表明，刚塑性振子可以用来计算任意地震作用下弹塑性振子的最大塑性位移。在此基础上，引入刚塑性反应谱，为计算任意给定地震作用下刚塑性振子的最大塑性位移提供了一种简便的方法。这种谱比弹塑性反应谱或经典弹性反应谱更容易构造。借助于本文提出的适当公式，刚塑性反应谱可用于确定任意弹塑性振子在给定地震作用下的最大塑性位移的实际上限。版权所有©2001 John Wiley&Sons，Ltd.
The paper shows that the rigid–plastic oscillator can be used to evaluate the maximum plastic displacement of any elastic–plastic oscillator under any earthquake. Motivated by this result a rigid–plastic response spectrum is introduced, which provides an easy method to calculate the maximum plastic displacement of a rigid–plastic oscillator for any given earthquake. Such a spectrum is easier to construct than the elastic–plastic response spectrum or the classical elastic one. By means of appropriate formulas presented in the paper, the rigid–plastic response spectrum can be used to determine a realistic upper bound to the maximum plastic displacement of any elastic–plastic oscillator under the given earthquake. Copyright © 2001 John Wiley & Sons, Ltd.