However it is difficult to conduct the aseismic designs of modern and large complicated structures with long spans, and deal with non proportionaldamping etc.
但难以解决大跨度、现代大型复杂结构的抗震设计以及处理非比例阻尼等情况。
2
A simplified approach in dealing with damping in structures is reviewed in this paper. It is pointed out that the proportionaldamping theory is adaptable for small damping structures.
对工程结构中阻尼矩阵的简化处理途径做了简要评述，指出目前常用的比例阻尼理论对于小阻尼结构是适用的。
3
For the earthquake resistant analysis of actual engineering structures, most of structural systems have the properties of non-proportional (non-classical) damping, I.