1: Vibration table test of precast concrete frame structure with 5 proportions, 2 spans, and 3 floors
Due to the similarity relationship, the similarity ratio of mass density is 1.
333, which is greater than 1, and there is a difference between the actual constant load borne by the model structure and the constant load obtained from the similarity relationship with the original structure.
Therefore, it is necessary to add mass blocks to the model to compensate.
In addition, 50% live load was also considered in this experimental model, and the layer mass and additional mass of the model structure are shown in Table 3.
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