Bar bending schedule of footing
In this article we will calculate bar bending schedule of a footing.
to calculate bar bending schedule of any component be its, column, beam, footing,or slab, the first thing you should keep in your mind is properly read the drawing and carefully observe the given data.
In this article we will calculate bar bending schedule of a footing.
to calculate bar bending schedule of any component be its, column, beam, footing,or slab, the first thing you should keep in your mind is properly read the drawing and carefully observe the given data.
GIVEN,
DIA OF BAR = 12mm
CLEAR COVER= 50mm
LENGTHOF FOOTING= WIDTH OF FOOTING = 2m =
2000mm
THICKNESS OF FOOTING = 250mm
Ld=DEVELPOMENT LENGTH= thickness of
footing-clear cover = {250-(2x50)}=150
Number of bars:-
MAIN BAR = RED BARS=(TOTAL
DISTANCE/SPACING)+1
={(2000-(2X50))/150}+1=14
DISTRIBUTION BAR = BLUE BAR=(TOTAL
DISTANCE/SPACING)+1
={(2000-(2X50))/150}+1=14
THEREFORE, TOTAL BARS REQUIRED= 28
CUTTING LENGTH:-
MAIN BAR= (TOTAL SPAN-CLEAR COVER)+Ld
-BENDS
={2000-(2
X 50)} +(2 x 150)-2(2 x 12)}
=2152mm
=2.152m
*AS BOTH SPANS ARE EQUAL, THE CUTTING
LENGTH OF MAIN BAR WILL BE EAUAL TO THAT OF DISTRIBUTION BAR.
DISTRIBUTION BAR= 2.152m
WEIGHT OF BARS:-
MAIN BAR= D^2/162 X LENGTH OF BAR
=〖12〗^2/162 X 2.152
=1.91
kg.
TOTAL WEIGHT OF MAIN BAR = (TOTAL
NO. OF BAR X WEIGHT OF 1 BAR)
=14 X 1.91kg
=26.74kg
TOTAL WEIGHT OF DISTRIBUTION BAR= MAIN
BAR=26.74kg
now , you can also calculate bbs of a footing of any size.
best of luck.