# Calculate The Bar Bending Schedule For One Way And Two Way Slab

## Bar Bending Schedule For One Way Slab | Bar Bending Schedule For Two Way Slab

**Calculate The Bar Bending Schedule For One Way And Two Way Slab**

Today I have the topic of Calculate The Bar Bending Schedule For One Way And Two Way Slab.| what is the difference between one-way ad two-way slab |Bar Bending Schedule For One Way Slab |Bar Bending Schedule For Two Way Slab|Bar Detail of one Way Slab | Bar Detail of Two Way slab?

### What Is The One Way and Two Way Slab?

Before calculating the bar bending schedule for the slab must be known about the one-way and two-way slabs. one way slab has the main bar or crank bar on the shorter side and a distribution bar on the long side. But the two-way slab has both sides the crank bar which is the difference between one way and a two-way slab.

**Bar ****D****etail on a one-way slab**

Main bar or crank bar on the shorter side

The distribution bar is on the long side. And this bar is the straight bar

The extra bar has the bottom of the crank bar. And this bar is the straight bar.

**Bar ****D****etail on a two-way slab**

The main bar and distribution are the same size same crank bar on both sides.

The extra bar has the bottom of the crank bar on both sides.

**Calculate the Bar Bending Schedule for One Way and Two Way Slab**

### One way slab

**Given data:**

Length of slab (along beam) =5000mm=5m

Width of slab (without beam 90degree beam side) =2000mm=2m

Length of extra bar=L/4=2000/4=500

Diameter of main bar/crank bar=16mm

Diameter of top extra bar=16mm

Diameter of distribution bar=12mm

Spacing of main and distribution bar=150mm

Concrete cover bottom and top=20mm

Concrete cover of side=25mm

**Solution**

**Main bars dia=16mm**

**Cutting Length of main bar/crank bar**

Cutting Length of main bar/crank bar=clear span+2xLd+crank length -2bends 45degre

Cutting Length of main bar/crank bar=2000+(2x40d)+0.42D-2x45d

**Here**

Ld=development length

Ld=40d=40×16=640mm

Crank length=0.42D ({D= deapth of slab-2(sides c.c) –dia of bar}

D= 150-2(25)-16=84mm

45 degree bend=1d=16

**Now **

Cutting Length of main bar/crank bar=2000+(2x40x16)+(0.42×84)-(2×16)

**Cutting Length of main bar/crank bar=2000+1280+35.28-32=3283.28mm=3.283m**

**Number of main bar/crank bar**

Number of main bar/crank bar =length of slab/spacing+1

**Number of main bar/crank bar =5000/150+1=34.33=35No’s**

Total length of main bar/crank ba=length of one bar x number of bar

**Total length of main bar/crank bar=3.283×35=114.915m**

**Other Post**

**How To Find The Derivation Of 0.42d Bent Up Bar**

**Weight of main bar/crank bar**

Weight of main bar/crank bar=d²/162.25 x total length

**Weight of main bar/crank bar=(16)²/162.25 x 114.915=181.314kg=182kg**

** Distribution bars dia=12mm**

**Cutting Length of distribution bar**

Cutting Length of distribution bar=length of the slab +2xLd

Ld = 40d=40×12=480mm

**Cutting Length of distribution bar=5000+2x40x12=5960mm=5.960m**

**Number of distribution bar**

Number of distribution bar=total width of slab/spacing +1

Number of distribution bar=2000/150+1=14.33=15No’s

Total Length of distribution bar=length of one bar x number of bar

Total Length of distribution bar=5.960×15=89.400m

**Weight of distribution bar**

Weight of distribution bar=d²/162.25 x total length

**Weight of distribution bar=(12)²/162.25 x 89.400=79.344=80kg**

**Top Extra bars **

**Cutting length of extra bar**

Cutting length of extra bar=L/4=2000/4=500

**We know**

**Number of extra bar= Number of the main bar**

35=35

The total length of extra bar=length of one extra bar x Number of extra bar

**Total length of extra bar=500×35=17500mm=17.500m**

**Weight of Extra bar**

Weight of Extra bar= d²/162.25 x total length

Weight of Extra bar= (16)²/162.25 x 17.500=27.612=28kg

Total weight of 16mm=182+28=210kg

Total weight of 12mm=80kg

**Calculate The Bar bending Schedule for Two Way slab**

Bar bending schedule for two way slab have both sides of the crank bar and is the same procedure that is followed to find the one way slab for the crank bar.

**Read More**

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