正交构造异性板计算分析方法探讨

在盖板刚度的基础上,将加劲肋的抗弯及抗扭刚度往两正交方向进行均摊,得到另一种刚度形式的比拟正交异性板。这样处理可避开繁琐的剪滞分析过程且计算结果更为合理。另外,用空间梁单元模拟加劲肋,空间板单元模拟盖板的有限元计算分析方法,可应用于对正交构造异性板结构的计算,计算结果更可靠,方法具有很好的适应性。

Analysis Methods of Constructional Orthotropic Plate with Adding Stiffening Rib Rigidity

In order to calculate constructional orthotropic plate,the valid width of cover board must be ascertained,and effects of the lag of shearing force must be taken into account in the process of employing traditional G-M method.By adding rib's share to cover board's rigidity,a new form rigidity of assimilated plate is put forward.The method avoids numerous calcuation and is more accurate.In addition,when the rib is supposed to work as a beam,and the cover board works as a plate,the FEM has good adaptability in analyzing constructional orthotropic plate.