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储存谷物和其它粉粒状的产品(如砂糖、洗衣粉等),需要许多容积形构筑物。在苏联,它是由尺寸为3.2×3.2米、高1.2米的薄壁箱形的装配式钢筋混凝土构件制成的。制造高1.2米的容积薄壁构件时,混凝土混合物的密实用产生垂直方向振动的振动台是不合适的。因为随着混凝土混合物高度的增加,在振动方向上振动急剧衰减。因此,为有效地密实混凝土混合物,必须采用产生垂直于构件壁平面上的圆周振动的振动台。在这种情况下,对振幅有影响的不是构件的高度,而是构件的厚度,所以,振幅的
The storage of grain and other granular products (such as sugar, detergent, etc.) requires many volumetric structures. In the Soviet Union, it was made of a thin-walled, box-shaped, prefabricated reinforced concrete member measuring 3.2 x 3.2 meters in height and 1.2 meters in height. When manufacturing a thin-walled member with a height of 1.2 meters, it is not suitable for the viscous concrete vibrating table to vibrate in a vertical direction. Because with the increase of the height of the concrete mixture, the vibration is abruptly attenuated in the vibration direction. Therefore, in order to effectively compact the concrete mixture, it is necessary to use a vibration table that generates a circular vibration perpendicular to the plane of the member wall. In this case, it is not the height of the component that affects the amplitude, but the thickness of the component. Therefore, the amplitude