How To Calculate The Volume of Concrete For Trapezoidal Footing
Trapezoidal footing is that footing which has two portions one is the bottom rectangle portion and 2nd is the upper inclined portion. Today I have the topic of these footing to find the volume of the concrete. How To Calculate The Volume of Concrete For Trapezoidal Footing. Concrete For Trapezoidal Footing  Calculate The Concrete For Trapezoidal Footing
How To Calculate The Volume of Concrete For Trapezoidal Footing
Calculate the volume of the concrete of this footing with the help of some given dimension. we use this dimension to find the volume of the concrete.
Bottom Rectangle Portion
The Length of the bottom Rectangle Portion =L= 3.5m
The Width of the bottom Rectangle Portion = W= 2.5m
The bottom Rectangle Portion = H= 0.200m
1st Step to calculate the volume of this portion
The volume of the bottom Rectangle Portion =L × W × H
The volume of the bottom Rectangle Portion= 3.5 × 2.5 × 0.200
The volume of the bottom Rectangle Portion= 1.750m³
Upper Inclind or trapezoidal Portion
The Length of the Upper Inclind or trapezoidal Portion =L= 400mm=0.400m
The Width of the Upper Inclind or trapezoidal Portion =W= 200mm = 0.200m
The Height of the Upper Inclind or trapezoidal Portion =H= 400mm = 0.400m
2nd Step to calculate the volume Upper Inclind or trapezoidal Portion
For calculation of these shapes by using this formula
The volume of the Upper Inclind or trapezoidal Portion Formula= 1/3[A1+A2+(√A1 ×A2)H]
For calculation, the volume must be needed Area of the bottom rectangle portion and upper portion
Now Calculate the area of both portion
Area 1 = A1 = L × W
Area 1 = A1 = 3.5 × 2.5
Area 1 = A1 = 8.75m²
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Now Area of 2nd upper portion
Area 2 = A2 = L × W
Area 2 = A2 = 0.400 × 0.200
Area 2 = A2 = 0.080m²
Now All Values put into the formula
The volume of the Upper Inclined or trapezoidal Portion = 1/3[A1+A2+(√A1 ×A2)H]
The volume of the Upper Inclined or trapezoidal Portion = 1/3 [8.75+0.080+(√8.75+0.08)0.40
The volume of the Upper Inclined or trapezoidal Portion = 1/3 ( 8.83+2.97)0.4
The volume of the Upper inclined or trapezoidal Portion = 1/3(4.72)
The volume of the Upper Inclined or trapezoidal Portion = 4.72/3 = 1.5733m³
Now We Calculate The Total volume of Concrete for inclined or trapezoidal footing
The Total volume of inclined or trapezoidal footing = Volume of the bottom rectangle + volume of the inclined portion
The Total volume of inclined or trapezoidal footing = 1.750 + 1.5733
The Total volume of Concrete for inclined or trapezoidal footing = 3.323m³
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