Rebar Estimation Class: 17 (Slab on Grade) Part - 2

 Slab Bolster & Slab Bolster Upper

 

Slab Bolster height = 2”

 

Length of Slab Bolster = 5+4 = 9’- 0”

 Number of Slab Bolster = 200/9  = 22.22

                                           = 23+1 = 24

 

         No. of SB   =  150 -  (2 X ½ Spacing)

                                         Spacing

                            =  150  -   4

                                      4                

                           =  146 / 4 

                           =  36.5 + 1  = 38

                   

  

Total number of SB =  24 X 38

                                  =  720 Nos.

 

Total linear feet = 720 X 5

                           = 3600 L ft

 

 

Required = 720 Nos.

2” Height of SB (5’-0”) Length

The total length of the Beam Bolster 3600’- 0” L ft

 

 

 

 

Individual high chair  ( I H C )

 

         No. of IHC   =  200 -  (2 X ½ Spacing)

                                         Spacing

                            =   200 -   4

                                      4                

                           =  196 / 4 

                           =  49 + 1  = 50

 

         No. of IHC   =   150 -  (2 X ½ Spacing)

                                         Spacing

                            =   150 -   4

                                      4                

                           =  146 / 4 

                           =  36.5 + 1  = 38

 

 

Total no. IHC = 50 X 38

                           = 1900 PCS

 

 

Required = 1900 PCS

10½” Height of IHC @ 48” OC.