The Modal Experiment Analyse Of The Large-Span Structurers Based On Environment Encourage

Experiment importance that model design of right verification bridge of analysis, establish the dynamics model of the bridge construction and the valuation of the movement appearance to have the important meaning, the model experiment to become the bridge to finish construction to experiment, the bridge health monitor to constitute the part. The tradition's model experiments request to proceeds to arouse to flap, make to experiment to large bridge construction difficult then complete. According to environment the circumstance that encourage that model experiment method only need to respond to the signal to down proceeds a new model that analyze of model experiment the method, and get the extensive application in the engineering. This paper introduces the traditional model experiment and the model that according to the environment encourage to experiment the method first, from theoretically study its contact and differentiation. Here foundation top, further method ( similar in the tradition arouse the method) towards environments encourage proceed assumption, according to bridge construction characteristics, application move the measuring order proceeds the model experiment. At identify the model damping, this text returning rightly tradition take the breadth method to make improvement, make the accuracy to get very big exaltation. Combine the applied above method to pull the bridge to proceeds the modeled to experiment to north of big bridge in Yangtze River of Runyang. Experiment with the limited dollar the model for model for method for calculation consequently express, applying the ambulation the measuring ordering proceeding bridge model experimenting can getting than ideal frequency, flapping the type and the damping ratio, is a good economy large quantity experimenting cost improving the accuracy experiment the method.