When tube’s diameter is big and endlong ribs and concrete up and down the tube is comparatively thiner, the dissimilarity of parallel slabs’s flexural rigidity and perpendicular slabs’s flexural rigidity is become evidence.
When tube’s diameter is big and endlong ribs and concrete up and down the tube is comparatively thiner, the dissimilarity of parallel slabs’s flexural rigidity and perpendicular slabs’s flexural rigidity is become evidence.
当开孔直径较大,纵肋和面层、底层混凝土相对较薄时,横孔板和顺孔板的刚度才有较明显的差异。