The unit weight of each steel bar can be used to calculate the total weight of the bars. This is determined after the final estimate of the total steel required for a construction project.
To calculate the weight of steel bars, you can use the following formula:
Weight = π × D2 /4 × L × Density
where:
- π is a constant (approximately 3.14159),
- DD is the diameter of the steel bar,
- LL is the length of the steel bar, and
- Density is the density of steel.
The density of steel is typically around 7.85 grams per cubic centimeter or 7850 kilograms per cubic meter.
Here’s a step-by-step guide:
- Measure the diameter (DD) of the steel bar in millimeters.
- Measure the length (LL) of the steel bar in meters.
- Substitute these values into the formula.
- Use the density of steel (7850 kg/m³) as the value for density
- Perform the calculations to find the weight in kilograms.
Here’s the simplified version of the formula using the density of steel:
Weight (kg) = 0.006165 × D2 × L
Remember to use consistent units (e.g., if the length is in meters, the diameter should also be in meters). Additionally, ensure that the diameter and length are measured at the same point on the steel bar for accurate calculations.
