任意荷载的作用含反对称荷载分量的图乘剪力的作用。
For any load the function from load is in multiplication shear force by antisymmetry load.
注意结构是对称的， 而节点线位移表示反对称荷载。
We note that the structure is symmetrical and that sways represent antisymmetrical loading .
注意结构是对称的， 而节点线位移表示反对称荷载。
We note that the structure is symmetrical and that sways represent antisymmetrical loading .
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