Methodologies of Electromagnetic Shaking Table Seismic Test on Reduced Scale Specimen of Building Structures

The performance of shaking tables and their control systems are key elements to achieve the objects of a seismic vibration test simulation. In this paper, the methodology of a vibration test on reduced scale test specimens with a small scale electromagnetic shaking table has been proposed. For the influence of the test specimens and table structure over the table output signal, this method optimizing the non-linear correction of signals driven by the shaking table so as to reduce the distortion degree of the table output excitation parameters has been discussed. The solutions of the preprocessing of input signals, post-processing of output signals, and analyzing test data targeted at the structural features of the reduced-scaled test specimens has also been put forward.