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首页> 外文期刊>Practice periodical on structural design and construction >Fabrication and Testing of a Laminar Shear Soil Box for a Shaking-Table Test
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Fabrication and Testing of a Laminar Shear Soil Box for a Shaking-Table Test

机译：用于振动台测试的层状剪力箱的制造和测试

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摘要

A rectangular laminar shear rectangular soil box was designed and fabricated that consisted of multilayer steel frames to minimize the influence of the boundary effect of soil boxes used for the soil-structure shaking-table tests. Omnidirectional rolling bearings were placed between the vertical adjacent frames of the soil box, allowing the frame to rotate in any direction out of plane. The dynamic characteristics of the laminar shear soil box are analyzed based on computer modeling and the shaking table's movement. Results showed that the natural frequency and damping ratio of the laminar shear soil box were considerably different from those of the soil sample. The acceleration of time history and the frequency spectrum of each measuring point at the same depth of the soil sample were highly consistent, and the boundary effect index associated with each measuring point was low. The influence of the boundary effect can be effectively eliminated using the laminar shear soil box; therefore, it can be used in the soil-structure shaking-table tests.
机译：设计和制造了一块矩形层状剪切矩形土箱，由多层钢框架组成，以最大限度地减少用于土壤结构摇动台测试的土箱边界效应的影响。将全向滚动轴承放置在土箱的垂直相邻框架之间，允许框架在平面中以任何方向旋转。基于计算机建模和摇架运动，分析了层状剪力箱的动态特性。结果表明，层状剪切土箱的固有频率和阻尼比与土壤样品的固体频率和阻尼比。在土壤样品相同深度处的每个测量点的时间历史和频谱的加速度高度一致，与每个测量点相关的边界效应指数低。可以使用层剪剪切土箱有效地消除边界效应的影响;因此，它可以用于土结构摇动台测试。

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