Roof Slab Reinforcement Details
Slab supported on two sides and bending takes place predominantly in one direction only is called one way slab.
Roof slab reinforcement details. Slab may be supported on walls or beams or columns. Figure 1 depicts the reinforcement details of a one way slab. 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. Slab containing supports on less than 4 sides can be designed as the one way slab.
Detailing of medium slab openings. However including the beams would effectively transfer a load of slabs to the columns which is good for durability of the structure. Reinforcement details of one way slab. Detailing of slab openings of 450mm to 900mm.
Reinforcement detailing of a slab is done based on its support conditions. 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 one way slab. Slab supported directly by columns are called flat slab.
Detailing of reinforcements in beams and slabs plays an important role in providing strength durability and cost optimization.