Today's topic is for civil engineers and those who are new.Those who can't figure out the amount of rod in the stairwell. Let's start without talking. How to Calculation Stairs Reinforcement. Stair full Estimate. Stair Rod Estimate. Civilengineering65.Stair BBS.
Important Note
12 mm Dia Main St bar 5" c/c
10 mm Dia Binder 6" c/c
Extra Top - 10 mm Dia 5" c/c
Extra Bottom - 10 mm Dia 5" c/c
Extra Bottom Binder 10 mm Dia 5" c/c
Lobby = 4'-6"
Bed = 9'-6
Landing = 3'-8"
So lets see Stair Reinforcement calculation Formula Apply.
- 12 mm Dia Main St bar 5" c/c
= 3'-4"÷. 42" (3'-8"-- Clear Cover side 2x2= 4")
= 8+1 = 9 Nos (+1Exrtra)
= 9 Nos x 17'-6" = (157.5 Rft x 0.2706)
- 10 mm Dia Binder 6" c/c
= 17'-6"÷.50" = 35+1 Nos (+1Exrtra)
= 36 Nos x 3'-4" = (119.88 Rft x 0.1806)
- Extra Top - 10 mm Dia 5" c/c
= 4'-0"÷.42" = 8+1 Nos (+1Exrtra)
= 9 Nos x 3'-8" = (33.05 Rft x 0.18)
=(5.95kg x 2) = 11.89 kg
- Extra Bottom Binder 10 mm Dia 5" c/c
= 3'-4"÷.42" = 8+1 Nos (+1Exrtra)
= 9 Nos x (2'-6" + 4'-2")= (60.03 Rft x 0.18)
= (10.805 x 2) = 21.17 kg
- Extra Bottom Binder 10 mm Dia 5" c/c
= (3'-8"+2'-6") ÷. 50 = 13+1 Nos (+1Exrtra)
= 14 Nos x 3'-4" = (46.62 Rft x 0.1806)
- Landing Reinforcement Long Direction
Lenth 7'-10" @10 mm Dia Rod 4" c/c
= 3'-8" ÷. 42 = 9+1 = 10 Nos
=10 Nos x 7'-6" = 75 Rft x 0.18= 13.5kg
( clear cover lenth - 2x2= 4 ")
- Landing Reinforcement Short Direction
Lenth 3'-8" @10 mm Dia Rod 6" c/c
= 7'-6" ÷.50 = 15+1 Nos
= 16 Nos x 3'-8" = 58.72 Rft x 0.18= 10.459kg
( clear cover lenth - 2x2= 4 ")
Total Nubers of Bars Calculation Estimated Weight = 202.11 kg