61x
001837
2025-02-11

长时间荷载作用下未开裂构件的虚拟重心的有效惯性矩

截面抗弯强度

II=bh312+bh(zI-h2)2 + αe,I(As,def,-z,(bottom)(def,-z,(bottom)-zI)2 + As,def,-z,(top)(zI-def,-z,(top))2)

;