When tube's diameter is small and endlong ribs and concrete up and down the tube is comparatively thicker, the dissimilarity of parallel slabs's flexural rigidity and perpendicular slabs's flexural rigidity is not evidence.
When tube's diameter is small and endlong ribs and concrete up and down the tube is comparatively thicker, the dissimilarity of parallel slabs's flexural rigidity and perpendicular slabs's flexural rigidity is not evidence.
当开孔直径较小，纵肋和面层、底层混凝土相对较厚时，横孔板和顺孔板的刚度差异不大。