The damping is the main reason of structure's energy dissipation, it is described the process of structural-system vibration energy dissipation characteristics. The damping is one of the basic dynamic characteristics. During the dynamic response analysis, the damping has a great influence to the structure. The research on the damping began ages ago, and it continues to develop and improve some kinds of the damping theory. In recent years as the buildings higher and the bridges longer, a lot of scientific re...