How To Calculate The Bar Bending Schedule For Slab OneWay And Two Way
Find the bar bending schedule for the slab means all detail find the steel used in the slablike diameter of the bar length of the bar weight of the bar and fixing of the bar.BBS For Slab. BBS For oneway Slab.BBS For twoway Slab. How To Calculate The Bar Bending Schedule for Slab. How To Calculate The Bar Bending Schedule For Slab OneWay And Two Way
What is The OneWay And TwoWay Slab
The oneway slab and Two way slab is the only difference between the steel. means we can check the difference in steel fixing. if the main bar or bentup bar comes to the shorter side and the distribution bar comes to the long side its means this is a oneway slab. if the main bar or bentup bar comes to both sides its means this is a Twoway slab.

How to Calculate Bar Bending Schedule for Lintel Beam

How to Calculate the Bar Bending Schedule of The Footing

How To Find BBS For The Circular Column
Rebar Location of oneway slab
Main bar or bentup abr is the shorter side
The Straight bar on the long side. and this abr is distribution bar.
The bentup on the up side and the extra bar is bottom on bentup bar.
Rebar Location of Twoway slab
The Straigh bar, main bar and bentup abr are the same size on both sides.
The bentup on the up side and the extra bar is bottom on bentup bar on both sides.
How To Calculate The Bar Bending Schedule For Slab OneWay And Two Way
Deatil Given Data For Calcultion
Slab length on beam side = 5000mm = 5m
The Widht of the slab Expected beam (90Âº) = 2000mm = 2m
The Length of the extra bar is equal to L/4 = 2000/4 = 500mm
The diameter of the bentup bar = 16mm
The diameter of the top side of the extra bar = 16mm
The diameter of the distribution bar = 12mm
The spacing between main bar and distribution bar = 150mm
The Concrete Cover both sidesÂ B and T= 20mm
The Concrete Cover of the both side L and R side =Â 25mm

Why Provide The Bent Up Bar In The Column Beam And Slab

Definition And Difference B/w Main Bar And Distribution Bar
Now SolutionÂ
 The Cutting length of the main barÂ
 The Weight of the main barÂ
 The Cutting length of the distribution bar
 The Weight of the distribution bar
 The Cutting length of theÂ Extra bar
 The Weight of the Extra bar
Â The Cutting length of the main bar or Bentup bar (16mm)
Cutting length of the main bar or Bentup bar = clear span+2 x Ld+crank length – 2bends (45Âº)
Cutting length of the main bar or Bentup bar = 2000+2x40d+0.42D2×45Âº
Now Calculate the (d)
The Ld = development length of the rebar
The Ld = 40d = 40 x 16 = 640mm
Now Calculate the D
The Crank lengthÂ = 0.42D
D= depth of the slab – 2x L and R concrete cover – diameter of the bar
Depth of the slab = 150
concrete cover L and R = 25
Diameter of the bar = 16mm
D = 150 – 2 x 25 – 16 = 84mmÂ
The bends of 45Âº = 1d = 1 x 16 = 16
SoÂ
Cutting length of the main bar or Bentup bar = 2000+2x40d+0.42D2×45Âº
Cutting length of the main bar or Bentup bar = 2000+2x40x16+0.42 84 – 2×16
Cutting length of the main bar or Bentup bar =3283.28mm = 3.283m
The Number of the main barÂ
The Number of the main bar = length of the slab/spacing between rebar +1
The Number of the main bar = 5000/150+1=34.33 says 35No’s
The total length of the main bar
The Total length of the main bar= cutting length of the one bar x numbers of the bar
The Total length of the main bar= 3.283 x 35 =114.915m
The Weight of the main barÂ
Weight of the main bar = dÂ²/162 x Total length of the main bar
Weight of the main bar = 16Â²/162Â x 114.915 =182kg
The Cutting length of the distribution bar (12mm)
The Cutting length of the distribution bar = Total length of slab + 2x Ld
We Know
Ld = 40d =40 x12 = 480mm
The Cutting length of the distribution bar = 5000 + 2 x 480 =5960mmÂ = 5.960m
The Number of The Distribution bar
The Number of The Distribution bar = width of the slab/spacing between rebar +1
The Number of The Distribution bar = 2000/150+1= 15No’s
The total length of the distribution bar
The total length of theÂ distribution bar = length of the one bar x number of the bars
The total length of the distribution bar =Â 5.960 x 15 = 89.400m
The Weight of the distribution bar
The Weight of the distribution bar =Â dÂ²/162 x Total length of the distribution bar
The Weight of the distribution bar =Â 12Â²/162Â x 89.400 = 80kg
The Cutting length of the Top Extra bar
The Cutting length of the Top Extra bar= width of the slab /4 = 2000/4 =500
The Number of the Top extra bar
The Number of the top extra bar = The Number of the main bar
35=35
The Total length of the top extra bar = cutting length of the one barÂ x number of bar
The Total length of the top extra bar = 500 x 35 = 17.500m
The Weight of the Top Extra bar
The Weight of the Top Extra bar = dÂ²/162 The length of the top extra bar
The Weight of the Top Extra bar = 16Â²/162 x 17.500 = 28kg
Total weight of the 16mm bar
Total weight of the 16mm bar = 182+28=210kg
Total weight of the 12mm bar
Total weight of the 12mm bar = 80kg
This method of finding the bar bending schedule of a oneway slab and the same method of finding the bar bending schedule for two way slab but just add the bendup bar on both sides of the slab
Other Post

Bar Bending Schedule For Column

Bar bending Schedule of Plinth Beam

Find The Bar Bending Schedule For Duct Bank

Calculate Load And Design Calculation For Column Beam Wall And Slab

Calculate The Volume of Sand Aggregates In Dipper Truck

How To Calculate The Volume of Concrete For Trapezoidal Footing

Base Station Installation on SPS855 and TSC3 Controller Configuration

Seismic Proof Construction And Technical TermsÂ
[…] How To Calculate The Bar Bending Schedule For Slab OneWay And Two Way […]