This architectural drawing is Upper and lower layer reinforcement details of the structure in AutoCAD 2D drawing, CAD file, dwg file. The bottom mat of reinforcement, which is typically continuous across the entire slab surface, resists positive bending forces at the crucial span portions. In the key regions around the supports in the column strips and middle strips, the top mat resists the negative bending moments. For more details and information download the drawing file. Thank you for visiting our cadbull.com.