Parameters Identification Of The Layer Dynamic Foundation, The Storehouse Structure, And The Layer Foundation-Storehouse Structure Interaction System

The paper carry out parameters identification of the layer dynamic foundation, the storehouse structure, and the layer foundation—storehouse structure system. Identifying the parameters of the layer dynamic foundation, the analysis model of the layer foundation is built according to the characterisic of the strata, and on the basis of the identification theory of Least—Square, the time domain identification method of the layer dynamic foundation is established by means of solving iteratively and identifying stage by stage. The method can be used in the layer foundation panameters identification under the condition of unknowing the input motion from base rock and the limited measurement data of the strata response, and the method can be applied to determination of the dynamic coefficient matric in the dynamic response computation model of the lumped mass system. Identifying the storehouse structura parameters, according to the chanacteristic of the storehouse structure and the standard of the relative construction the N—degree of freedom lumped mass system of the storehouse structure is established, and the problem of measuring difficultly the rotation freedom in the parameters identification of the storehouse structure is solved. In addition, the identification methods in frequency domain and time domain established respectively by utilizing the modal experiment data or the strata dynamic respose of the storehouse structure. These methods can be applied to the nondestructive evaluation for the old storehouse structures which have been used for many years, or the determination of the computation pa-...