## Application of bed rebar in construction

Bottom rebar is widely used in construction projects, including:

- internal separating walls

- The surrounding walls of the building

- non-structural walls

- Walls located in earthquake-prone areas

- Cement, clay and brick block walls

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## types of bed rebar

### 1. Ladder bed rebar (Ladder Type)

It consists of two parallel wires connected by transverse wires. Simple implementation and general use.

### 2. Truss bed rebar (Truss Type)

It has a diagonal connection between the wires and creates a higher resistance against tensile and lateral forces.

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## Advantages of using bed rebar

✅ increasing the resistance of the wall against earthquakes

✅ Prevent wall cracking

✅ prevent non-structural walls from falling

✅ increasing the integrity of the wall with the structure's skeleton

✅ reduction of life and financial damages

✅ Easy and fast implementation

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## Spacing and criteria for implementing bed rebar

Based on national building regulations:

- The bed rebar should be installed every 3 to 5 rows of bricks or blocks.

- The two ends of the bed rebar must be mechanically connected to the wall post or column.

- It is mandatory to use galvanized rebar to prevent rusting.

- Rebar must be completely covered in mortar.

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## The difference between bed rebar and wall post

| compared bed rebar | Wallpaper |

| Place of execution Inside the wall The sides of the wall

| Type of function Continuous reinforcement Overall control of the wall |

| cost | less | more |

| Application | Masonry walls High and heavy walls |

(In many projects, bed rebar and wall post complement each other.)

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## The price of bed rebar depends on what factors?

- Rebar type (ladder or truss)

- Wire diameter

- coating (galvanized or plain)

- branch length

- Steel price fluctuations

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## Summary

The bed rebar is one of the most important components of strengthening masonry walls, which plays a vital role in building safety, especially against earthquakes. The correct and principled use of bed rebar increases the useful life of the wall and minimizes possible damages.

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