用振型分解法求解框架结构的地震反应，地震波为EI Centro波-Using modal decomposition method to solve the seismic response of fr a me structure, seismic waves for EI Centro wave

EI Centro地震波时程的EMD分解，分解得到的一个典型的IMF分量，这个分量可以是线性的，亦可以是非线性的。-EI Centro earthquake wave of EMD decomposition process, decomposition of a typical IMF component obtained, this component may be linear, but also can be non-linea

Ei-centro地震波三向数据，可用于各大有限元数值仿真软件，输入地震加速度时程数据。(EI Centro seismic wave three-way data)