DESIGN
OF DEEP BEAM WITH/WITHOUT CUTOUTS
PROGRAM INFO/LIMITATIONS :
(
Actual program is available in
Super Civil CD ) |
This
program designs deep beam without cutout as per IS: 456-2000, however it
checks the shear as per ACI code. |
Deep
beam with cutout is designed using British Practice. |
Salient
features are as under : |
A
beam will be defined as Deep,
If L/D < 2.0 & beam is simply supported.
If L/D < 2.5 & beam is continuous. |
Shear
check is not required as per IS:456-2000. |
+ Ve reinforcement shall extend between support without curtailment
& shall be anchored 0.80 * Ld in to the support.
50 % of -ve reinforcement can be cut at a distance of 0.50 * D from the
face of the support. Reminder shall continue over the full span. |
Minimum horizontal steel = 0.20 %, & Maximum = 4 %.
Minimum vertical steel = 0.12 % |
Width
of the beam shall be > of the following to avoid buckling.
D/25. { D = depth }
L/50. { L = length } |
Applied
bending is checked against beam capacity. |
Fy
= 415 N/mm2 |
In
case of beams with cutouts, the clear distance between soffit of beam
& cutout shall be > D/5 |
Spacing
of reinforcements shall not be greater than the following :
3 * width of beam
450 MM. |
|