**Bar Bending Schedule of Lintel Beam | Typical Beam | Detailed Beam**

In this Article today we will talk about the **Bar Bending Schedule of Lintel Beam | Blockwork Lintel ****| Concrete Lintel | Steel Estimation | Bar Bending Schedule Software | BBS of Lintel Beam**** | Bar Bending Schedule of Beam | Cutting Length of Steel Bar | Bar Bending Schedule Calculation Excel | Bar Bending Formula**

**Bar Bending Schedule of Beam**

**Bar Bending Schedule of Beam**

We know the importance of the **Bar Bending Schedule** and have already discussed it.

Here we are going to see the Bar Bending Schedu e for **Beam**. It’s not totaly different from slab calcu ation. **Blockwork Lintel**

Before starting the topic make sure that you have read the below topics **Blockwork Lintel**

- Why steel is used in
**Concrete**?**Concrete Lintel** **Bar Bending Shape Codes Blockwork Lintel****Bar Bending Schedule Basic Formulas****What is Development Length and Lap Length?****Types of Stirrups in Reinforcement**

**Thumb Rules for Lintel Beam:**

- The minimum bearing for lintels onto
**brickwork**shall be 150 mm - The minimum bearing for lintel onto
**Blockwork**shall be 300 mm **Lintel**shall bear on**whole blocks**not**cut Blocks**- Lintels are to be added in
**mortar**similar to that used for laying the units. - The width of the lintel should be equal to the
**thickness**of opening and**depth**in the range between 1/2 to 1/8 of the span.**Concrete Lintel**

We will discuss this scheduling topic as two parts, one for a **Lintel Beam**, second for a **typical beam** and third for **detailed beam design specification**.**Concrete Lintel**

Let’s start. **Concrete Lintel**

**Bar Bending Schedule of a Lintel Beam:**

** Given Data:**

- Length of Lintel Beam = 1700 mm = 1.7 m
- Bearings = 150 mm
**Steel Estimation** - Breadth of Lintel Beam = 200 mm = 0.2 m
- Depth of Lintel Beam = 200 mm = 0.2 m
- Length of Door = 1200 mm = 1.2 m
- Clear Cover = 25mm = 0.025 m
**Steel Estimation**

**STEP-1: Calculate Length Of One Main Bar**

Length of one bar = Length of door opening + (2 x bearing length) – clear cover for both sides **Steel Estimation**

**Length of door**** = 1200mm – 1.2m**

**Bearing length**** = 150mm **(*150 mm to 200 mm bearing length should be provided and it should be placed on the motor.)*

**Clear cover** = 25mm (*we will take 25mm as clear cover)*

Length of one bar = 1.2+ (2 x 0.150) – 0.025 =**1.475m Steel Estimation**

**STEP-2: Calculate Total Length Of Main Bars**

**Before we calculate the total length of the main bars. We should know how many bars we are going to use in lintel reinforcement.**

**Below tips from lceted will help you to select proper how many bars we should use: Bar Bending Schedule Software** As we have a length of the lintel is more than 1.3m so we will have to choose 5nos of bars for the lintel reinforcement **Bar Bending Schedule Software**

**So, Bar Bending Formula**

We need 5 nos of 1.425m length of 10mm bars. In that case

Length of 5 bars = 1.425 x 5 = **7.125m Bar Bending Formula**

**STEP-3: Calculate Weight Of Steel For Main Bars**

**Weight of steel** for 10 mm bar = D²L/162 = 10² x 7.125/162 = **4.398 kg.**

**STEP-4: Calculate Length Of One Stirrups**

As we know size of bar is 200mm x 200mm

Cutting length of stirrups = (2x depth distance) +(2xWidth depth) + Hooks Length – Bend

Depth distance = depth – (2 x clear cover) – (dia of stirrups)

Depth distance = 200 -25 -25 – 8 = 142 mm

width distance = depth – (2 x clear cover) – (dia of stirrups)

width distance = 200 -25 -25 – 8 = 142 mm

**Hooks length = 9d**

**Bend = 2d**

We have 2 hooks and 5 bend

**So,**

Cutting length of stirrups = (2×142) + (2 x 142) + (2x9x8) –(5x2x8) = 632 mm = 0.632 m **Bar Bending Schedule Calculation Excel**

**STEP-5: Calculate No Of Stirrups**

No of stirrups = (Total length of lintel / distance between strriups) + 1

= (1.475/0.150) + 1 = 10.8 = 11nos

Total length of stirrups = 0.632 x 11nos = **6.952m Bar Bending Schedule Calculation Excel**

**STEP-6: Calculate Weight Of Steel For Stirrups**

Weight of steel for stirrups = D²L/162 = 8² x 6.952/162 **= 2.746 kg.**

*So we can order steel bar as,*

**7m (6.952) of 8mm bar**

**7.5m (7.125) of 10mm bar Cutting Length of Steel Bar**

**Bar Bending Schedule of a Typical Beam**

From the diagram, we can extract the be ow data

**Given Data**

**Beam**Size – 600 x 300 x 2600 mm- Bottom Reinforcement 16mm of 2 numbers
- Top Reinforcement 12mm of 2 numbers
- Stirrups – 8mm of 200 c/c
- Concrete cover – 2 5 mm @ sides & 40mm @ top & bottom
- Development Length as 50d (assumption)
**Cutting Length of Steel Bar**

**Step 1- Find Cutting Length of Top & Bottom Bars**

**Cutting Length of Top Bar** = Lclear + 2 x Deve opment Length = 2600 + (2x 50x 12) = 3800 mm

Cutting Length of Bottom Bar = Lclear + 2 x Development Length = 2600 + (2x50x16) = 4200 mm **BBS of Lintel Beam**

**Step 2 – Find Number of Stirrups**

Number of Stirr ups = Lclear / Spacing +1 = 2600/ 200 = 13 +1 = 14 Nos

**Step 3 – Find Cutting Length of Stirrups**

Cutting Length of Stirrups = Sum of total engths (excluding cover) – 3 nos of 90° bends – 2 nos of 135° bends + 2 nos of Hook Length

We have a detailed post about cutting Length of stirrups.

Assuming Length of one hook = 9d **BBS of Lintel Beam** Cutting Length of Stirrups = (520+250+520+ 250)-(3 x 2d)- (2 x 3d)+ 2x9d) = 1540-(3x2x8)-(2x3x8) + (2x9x8) = 1588 mm

Cutting Length of Stirrups = 1588 mm or 1.59 m **BBS of Lintel Beam**

**Step 4: Bar Bending Schedule – Typical Beam Format**

**Bar Bending Schedule for Detailed Beam**

Sometimes beams will come up with an extra one **crank bar** at the centre as shown in the diagram below. From the diagram,we can extract the be ow data

**Given Data**

- Beam Size – 600 x 300 x 2600 mm
- Bottom Reinforcement 16mm of 2 numbers
- Crank bar at bottom reinforcement 16mm of 1 number
- Top Reinforcement 12 mm of 2 numbers
- Stirrups – 8mm of 200 c/c
- Concrete cover – 25 mm @ sides & 40mm @ top & bottom
- Deve opment Length as 50d (assumption)

**Step 1- Find Cutting Length of Top & Bottom Bars**

Cutting Length of Top Bar = Lclear + 2 x Development Length = 2600 + (2x50x12) = 3800 mm

Cutting Length of Bottom Bar = Lclear + 2 x Development Length = 2600 + (2x50x16) = 4200 mm

Cutting Length of Bottom Crank Bar = Lclear + (2 x 0.42H) + (2 x 45° bend) + (2 x Deve opment Length)

Length of crank bar = 0.42 H

Where, H = Beam Depth – Concrete Cover – dia of bar = 600 – (2 x 40) – 16 = 504 mm

Cutting Length of Bottom Crank Bar = 2600 + (2 x0.42 x 504) + (2x1d) + (2 x 50d)

= 2600 + (2 x 0.42 x 504) + (2 x 1x 16) + (2 x 50 x 16) = 4655.36 mm or 4.66 m

**Step 2 – Find Number of Stirrups**

Number of Stirrups = Lclear / Spacing +1 = 2600/ 200 = 13 +1 = 14 Nos

**Step 3 – Find Cutting Length of Stirrups**

Cutting Length of Stirrups = Sum of total Lengths (excluding cover) – 3 nos of 90° bend – 2 nos of 135° bend + 2 nos of Hook Length

Assuming Length of one hook = 9d

= (520+250+ 520+250) – (3 x 2d) – (2 x 3d) + (2x9d) = 1540 – (3x2x8) – (2x3x8) + (2x9x8)

= 1588 mm

Cutting Length of Stirrups = 1588 mm or 1.59 m

**Step 4: Bar Bending Schedule – Detailed Beam Format:**

**OTHER POSTS:**

#### How to Calculate the Cutting Length of Spiral Bar or Helix Bar | BBS

#### How to Calculate Cutting Length of Bent Up Bar in Slab

#### How to Calculate Unit Weight of Steel Bars | Steel Weight Formula

#### How To Find Out The Cutting Length Of Main Bars & Circular Rings

### Bar Bending Schedule (BBS) | BBS Step by Step Preparation | Excel Sheet

### Bar Bending Schedule Basic Formulas | BBS Formula | What is BBS

**Conclusion:**

Full article on **Bar Bending Schedule of Lintel Beam | Blockwork Lintel ****| Concrete Lintel | Steel Estimation | Bar Bending Schedule Software | BBS of Lintel Beam**** | Bar Bending Schedule of Beam | Cutting Length of Steel Bar | Bar Bending Schedule Calculation Excel | Bar Bending Formula****.** Thank you for the full reading of this article in “**The Civil Engineering**” platform in English. If you find this post helpful, then help others by sharing it on social media. **If any formula of BBS is missing from this article please tell me in comments.**

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