BBS (Bar Bending Schedule )
Method of Calculate No of bars with required specification design and its weight is called bar bending schedule.
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Reinforcement Bar:
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Reinforcement Bar:
Steel Bar used as reinforcement in RCC structure called reinforcement bar.
Value of Dia < 6mm, Called Wire
Value of Dia >= 6mm, Called Bar
Grade < Fe-450, Called, MS TOR BAR
Grade >= Fe-450, Called, HYSD TOR BAR
Grade of Bar:Value of Dia < 6mm, Called Wire
Value of Dia >= 6mm, Called Bar
Grade < Fe-450, Called, MS TOR BAR
Grade >= Fe-450, Called, HYSD TOR BAR
Generally, Fe 450 used as a reinforcement Bar.
450 Means Strength 450N/mm2
To increase strength, Carbon content should increase
Fe-450
Fe-500
Fe-600
450 Means Strength 450N/mm2
To increase strength, Carbon content should increase
Fe-450
Fe-500
Fe-600
Note: In field always used above Fe-450
Clear Cover:
Clear Cover is a distance which made by concrete and it resists the reinforce from the weathering action such as moisture, snow etc.
Following of clear cover is used in RCC -
For, Slab =20mm
Beam = 30 mm
Column = 40 mm
Foundation & Footing = 50 mm
Lintel = 25 mm
Pile Foundation = 50 mm
Man Hole = 50 mm
All Water Tank and Reservoir wall if If not Given then assumed 200mm
Following of clear cover is used in RCC -
For, Slab =20mm
Beam = 30 mm
Column = 40 mm
Foundation & Footing = 50 mm
Lintel = 25 mm
Pile Foundation = 50 mm
Man Hole = 50 mm
All Water Tank and Reservoir wall if If not Given then assumed 200mm
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