Which type of slabs are commonly used in single storey buildings?

Explanation:

Two-way slabs are generally divided into the following three heads:

1) Slabs simply supported on the four edges, with corners not held down and carrying uniformly distributed load

• Such slabs are commonly used in single-story buildings, where supporting walls do not cause any fixidity.

• When such a slab is loaded to failure, a crack pattern at the bottom of the slab is observed.
• As evident from the crack pattern, the bending takes place in the direction CD for the portion EF of the slab, while the corners (say A) bending takes place along ab, perpendicular to the direction of the crack AE.
• Grashoff-Rankine gave the simplified method to solve such type of slab

2) Slabs simply supported on the four edges, with corners held down and carrying uniformly distributed load

• Such a case arises when the slab is built into brick walls or they are cast monolithically into the thin beams, providing the slab is not continuous over its edges.
• The exact analysis of such slabs is based on the theory of analysis, which can be done by the following methods
  • Pigeaud's method
  • Marcus method
  • IS code method

3) Slabs with edges fixed or continuous and carrying uniformly distributed load

• The following three methods may be used for the analysis of slabs with fixed edges or continuous slabs (slab as the above 2nd case)
  • Pigeaud's method
  • Marcus method
  • IS code method