Bar Bending Schedule For Column
In this article I explain the bar bending schedule for column. Bar bending schedule is also called BBS. purpose of BBS is that the explain about the steel which is using the any reinforcement concrete foundation or column in this method all the detail mention for steel means the diameter of steel length of steel and the weight of steel.
What is the Column?
A corroborated concrete column is a structural member designed to carry compressive loads, composed of concrete with an bedded sword frame to give underpinning. For design purposes, the columns are separated into two orders short columns and slender column.
given data
Length of Column=500mm
Width of Column=450mm
Height of Column=1500mm
Number of vertical bar=8Nos
Diameter of vertical bar=16mm
Diameter of stirrups(Rectangle)=10mm
Diameter of Stirrups (diamond)=10mm
Concrete Cover of Column=50mm
Spacing of stirrups =150mm
Now we calculate the bar bending schedule for column
Vertical Bar
Cutting length of vertical bar =total height of column+2bends
Cutting length of vertical bar =1500+2(16d)
Cutting length of vertical bar =1500+2(16×16)
Cutting length of vertical bar =1500+2(256)
Cutting length of vertical bar =1500+512=2012mm=2.012m
Number of vertical bar =8Nos
Total length of vertical bar =No’s of bar ×length of one bar
Total length of vertical bar =8×2.012=16.096m
Weight of vertical bar=d²/162.26×total length of vertical bar
Weight of vertical bar=16²/162.26×16.096
Weight of vertical bar=256/162.26×16.096=25.39kg=26kg
Rectangle Stirrups
Cutting length of Stirrups = 2 sides of column length +2 sides of column width+2bends(9d)
Cutting length of Stirrups =2 (500)+2(450)+2(9d)
Cutting length of Stirrups =2 (500)+2(450)+2(9×10)
Cutting length of Stirrups =1000+900+180=2080mm=2.080m
Number of stirrups(Rectangle)=total height of column/spacing+1
Number of stirrups(Rectangle)=1500/150+1=11Nos
Total length of stirrups=No’s of stirrups × length of one stirrups
Total length of stirrups=11 × 2.080=22.88m
Weight of stirrups= d²/162.26×total length of stirrups
Weight of stirrups=10²/162.26×22.88
Weight of stirrups=100/162.26×22.88=14.100kg=15kg
Diamond stirrups
cutting length of Diamond stirrups=4sides of diagonal+2bends
diagonal side =250 for find the right triangle
cutting length of Diamond stirrups=4(250)+2(9d)
cutting length of Diamond stirrups=1000+2(9×10)=1180mm=1.180m
Number of Diamond stirrups=total height of column/spacing+1
Number of Diamond stirrups=1500/150+1=11nos
Total length of Diamond stirrups=number of stirrups × length of one stirrups
Learn More
Bar Bending Schedule For Footing
Total length of Diamond stirrups=11 × 1.180=12.98m
Weight of Diamond stirrups=d²/162.26×total length
Weight of Diamond stirrups=10²/162.26×12.98
Weight of Diamond stirrups=100/162.26×12.98=7.99kg=8kg
Total weight of 16mm bar=26kg
Total weight of 10mm bar =15+8=23kg
