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How To Calculate Staircase Concrete Quantity



The calculation of concrete quantities is the first step in the process of constructing a concrete staircase. People need to know how much material should be purchased for construction to proceed smoothly. But it's a huge mathematical process, showing the dimensions of the stairs and how they will be built. construction.

Concrete Quantity Calculations The images will show you the calculations on the piece of paper and the link bellow will explain it better.





Staircase quantity


R.C.C. work (staircase)


Base Toe wall


L X B X H 1.10 x 30 cm x 23 cm 1.10 x 0.30 x 0.23 = 0.076 cu. Meter


No. of Toe wall is one


Therefore, total volume of Toe wall = 0.076 x 1 = 0.076 cubic meter


Waist slab of flights


Volume = L X B X H





Length of waist slab =




Length of waist slab = L = 3.05 meter  Breadth of waist slab = 1.15 meter


Adding bearing 15 cm    1.15 cm + 1.15 cm = 1.30 meter


Thickness of waist slab is 15 cm.


Therefore, volume of waist slab = L X B X H


Volume of waist slab = 3.05 x 1.30 x 0.15


Volume of waist slab = 0.594 m3


No. of waist slab is 2


Therefore, volume of waist slab = 0.594 x 2 = 1.190 m3








Landings


Length of landing = 2.30 meter


Add 15 cm bearing both ends


i.e. = 2.30 + 15 cm + 15 cm = 2.60 meter





Breadth of landing is 1.15 cm


Add 15 cm bearing as per drawing


i.e. = 1.15 cm + 15 cm = 1.30 meter





Thickness of landing slab is 15 cm i.e. 0.15 meter


Therefore, volume of landing = L X B X C


Volume of landing = 2.60 x 1.30 x 0.15


Volume of landing = 0.507 meter





No. of landing is 2


Therefore, total volume of landing = 0.507 x 2 = 1.014 cubic meter








Steps without slanting


Length of steps without slanting


= 2.3 m / 2               (As per drawing)


= 1.15 meter





Breadth of steps without slanting


= ½ x 0.25   (Triangle formula)


= 0.125 meter





Height of step without slanting is 16 cm


i.e. 0.16 meter





therefore, volume of step without slanting = L X B X H


volume of step without slanting = 1.15 x 0.125 x 0.16


volume of step without slanting = 0.023 m3  (cubic meter)





no. of steps is 20


therefore, total volume of steps without slanting = 0.023 x 20 =0.460 m3 





steps with slanting’s





length of steps with slanting’s


= 2.3 m / 2        (As per drawing)


= 1.15 meter





Breadth of step with slantings


= ½ x 0.03   ( ie. 0.28 – 0.25 = 0.03) = 0.0153 meter


Height of step with slantings is 16 cm i.e 0.16 meter


Therefore, volume of step with slanting = L X B X H


Volume of step with slanting = 1.15 x 0.0153 x 0.16


Volume of step with slanting = 0.00281





No. of steps with slanting is 20


Therefore, total volume of steps with slanting = 0.00281 x 20 = 0.055 m3





Total volume of staircase is = 0.076 + 1.190 + 1.014 + 0.460 + 0.055


Total volume of staircase is = 2.765 m3   (cubic meter)