Reinforcement detailing of a slab is done based on its support conditions.
Roof slab reinforcement details.
Rcc roof slab reinforcement details if you follow the minimum standards for structural design for modern day buildings you can opt for creating the rcc without a beam it is called a flat slab.
Slab supported on two sides and bending takes place predominantly in one direction only is called one way slab.
Two way slab full detail explanation diagrams with site below these links are our civil videos learn field work watch and subscribe for more videos building.
As shown in the figure above in the one way slab the main bars cranked bars are provided on the shorter side.
Reinforcement details of concrete beams and slabs should specify clearly about cover to reinforcement length of reinforcement curtailment of reinforcement number and diameter of reinforcement to be provided.
Detailing of medium slab openings.
Slab supported directly by columns are called flat slab.
Detailing of slab openings of 450mm to 900mm.
Reinforcement details of one way slab.
However including the beams would effectively transfer a load of slabs to the columns which is good for durability of the structure.
Slab may be supported on walls or beams or columns.
For slabs with openings more than 450mm and less 900mm at least one half the quantity of main steel reinforcement intersected by the opening is provided parallel to the main reinforcement bars on each side of the opening extending a length of development length l d beyond edges of the opening on both top.
Figure 1 depicts the reinforcement details of a one way slab.