Based on the equation for estimation of bubble sizes in a freedom bubbling fluidized-bed studied by former researchers, the influence of vertical inner structures of the bed on the bubble sizes was taken into account and a concept of “equivalent column” was proposed.
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等效柱模型 equivalent column model
在此基础上，本文还论述了简体结构的简化计算，并提出了法向框架的等效柱公式。
Based on the above results the simplified calculation of tube structures has also been discussed, and the equivalent column formula of flange-frame has been presented in this paper.
抗扭构件的刚度计算公式可应用于钢筋混凝土平板-异形柱板柱结构体系的等效柱理论分析。
The theory expression of transverse torsion member can be applied to equivalent column method to analyze the behavior of reinforced concrete flat plate-special-shaped column structural system.
空间协同分析时，采用超元法（每个单元由多根杆组成）计算等效柱的侧移刚度矩阵，自由度成倍减少。
The method is applied to calculate lateral stiffness matrix in space cooperating analysis and the the degree of freedom can be greatly decreased.
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