ABSTRACT

Introduction to the concepts of slabs, their behavior, and the bending theory and shear force theory is provided in Chapter 1. Sectional strength of the slabs is discussed in Chapter 4. This chapter deals with the code specifications and the design methodology for one-way and two-way slabs. Several design examples are provided that demonstrate the code specifications for design and sectional strength of the slabs. In the examples, the serviceability requirements of the code are also checked. Slabs are classified as one-way slabs when their aspect ratio is 2 or greater. The length of the slab is at least twice the width. The slab would bend (sag) in the shorter direction due to its geometry. Hence, the main reinforcement to resist the bending moment would be placed in the shorter direction. Since the slab is simply supported, it has only one span and is required to have two beams along the long edges to support the slab (Figure 6.1). Unless the two short edges of the slab are loaded (e.g., with a masonry wall above the slab along its short edges), beams are not required along the short edges, if the columns are short columns and are not resisting any lateral loads.