Find out the quantity of steel in Kg for the given slab. (Figure 1). Assume missing data

 

Q#: Find out the quantity of steel in Kg for the given slab. (Figure 1). Assume missing data.

Solution#

Solution

 No. of Bars horizantally

 

19×12= 228''  => 228/7  = 32.57  = 33bars

 

Lengtht 20'    => total = 660 feet  #3 steel

 

No. of Bars vertically;

 

20×12 = 240  => 240/5 = 48+1  = 49 bars

 

 At lngth 21’     => total = 1029 feet

 

 5’×5’ deduction 6''/7 and 6''/5  =>  9bars and 12bars

 

5’×5’ total deduction 105ft => so 660  +1029 – 105  = 1584 feet

 

#1feet weight in kg = 0.171 kg => 0.171 × 1584 =  270.86 kg

 

=270.86 kg