Fig: RCC Beam Reinforcement Details
Fig: RCC Beam Reinforcement Details
Fig: RCC Beam Reinforcement Details
onsider a beam of clear length of 4m, 300mm wide by 450mm depth. It consists of 2-12 diameter
bars at top, and 2-16 diameter and 1 12 diameter bars at the bottom. Diameter of stirrup is 8mm
spaced at 180mm center to center. Clear cover to reinforcement provided is 40mm.
Length of B1 = clear distance between walls + 2 x width of walls 2 x bar cover + 2 x bend
length
Bend length = 6 x 16 = 96 consider as 100mm
Bend length is calculated as 6 x diameter of bar for reinforcement conforming to IS: 1786-1961
Length of B1 = 4000 + 2 x 230 2 x 40 + 2 x100 = 4580mm
Length of bar B2 is calculated based on shape of this bar. This bar bends up near the support as
shown below:
Stirrups are spaced at 180mm center to center. Stirrups are provided between walls or support for
a beam.
B1
16
4580
14.5
Bar Shape
B2
12
4520
4.02
T1
12
4380
7.80
S1
24
1330
12.6