The Modal Parameter Identification Of Multi-ribbed Slab Structure Based On Time Domain Method

As a neotype structure system, the safety and practicality of Multi-ribbed Slab Structure (MRSS) is one of the issues that the people most concerned about.So it's necessary to analyse its dynamic characteristics through dynamic detection, then give its dynamic modal, identify its modal and physical parameters and evaluate its security forsafety of the people and property. The main research contents are as follows:1. According to the discussion and analysis to the ITD method, the complex exponential(CE) method and the ARMA method ,give the process and method of modal parameter identification with time domain method(TDM);2. Through calculating a six-storey MRSS' response under stationary random motivation with time history method to obtain the free vibration response after treating the calculated data,and identifing the structure's modal parameter by ITD,CE and ARMA,argument the feasibility that the TDM is used to the MRSS;3. On the basis of the comparison of the modal parameter identification to displacement response of 1st student apartment of Xi'an University of Architecture and Technology obtained from the dynamic detection experiment and the result of the modal analysis with the finite element method, prove the feasibility further that the TDM is used to the MRSS;...