| A series of eedhquake in the last decades caused greatdamage around the world. It becomes more and more important tostudy the theory and method of reducing vibration. The theoriesand applications of smictural seismic test method with increasingimportance are summarized in this paper. The shake table used forthis sthectural seismic test comes from an MTS instrument, and inthis test, a tow-span colltinuous beam bridge is given as an example.On the basis of responses of the model, effects of three factors,including the height of piers, the stiffoess of suPport and thedamping of system, are discussed and so come to some meaningfulconclusions. |