139x
001842
2025-02-11

短期荷载未开裂状态下虚拟重心的有效惯性矩

II,st=b⋅h312+b⋅h⋅(zI,st-h2)2+αe,I,st⋅(As,def,-z,(bottom)⋅(def,-z,(bottom)-z1,st)2+As,def,-z,(top)⋅(z1,st-def,-z,(top))2)

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