With a door rigid frame as example, the influence is analyzed of elasticity, plasticity and different initial bending on stability of the frame respectively.
文中采用门式刚架作为算例，分别研究了弹性、塑性及不同初始挠曲对其稳定性的影响。
2
The method and process to back analyze the above initial geostress in linear elasticity material with finite element method is discussed, followed by an example.