Note:
The Load per Anchor During De-Moulding Calculator is used to determine the load each anchor must bear during the initial lifting or de-moulding process of precast elements. This calculation ensures safe handling and prevents overloading of anchors, thus preventing accidents.
Parameters Explained:
- Weight (G) in kN: The total weight of the element being de-moulded. It must be greater than zero as a zero or negative weight is physically meaningless.
- Additional Load (Hq) in kN: Any additional load acting during de-moulding. It must be greater than or equal to zero.
- Lifting Coefficient (f): A factor that accounts for dynamic forces during lifting, typically 1.3 for de-moulding. It must be greater than zero as a zero or negative coefficient implies no load or a negative safety margin, which is not applicable.
- Spread Angle Factor (z): A factor based on the spread angle of the lifting cables, typically 1.04 for a 15° spread angle. It must be greater than zero as a zero or negative angle factor implies no force transfer or an inverted force transfer, which is not physically meaningful.
Key Parameters Table:
| Parameter |
De-mould |
| Concrete strength |
20 N/mm² |
| Weight (G) |
50 kN |
| Spread angle (θ) |
15° |
| Spread factor (z) |
1.04 |
| Lifting coeff (f) |
1.3 |
Real-Life Applications:
- Construction: Safely lifting precast concrete elements from molds.
- Manufacturing: Moving heavy machinery and equipment during initial setup.
- Marine Industry: Lifting and moving precast components for docks and structures.
Importance of Accurate Calculations:
Accurate calculation of the load per anchor is crucial for ensuring the safety and structural integrity of de-moulding operations. Incorrect calculations can lead to overloading of anchors, which may result in:
- Anchor failure
- Dropped loads
- Structural damage
- Serious injuries or fatalities
Conclusion:
This calculator provides a vital tool for ensuring the safe handling of precast elements during de-moulding. By accurately determining the load per anchor, it helps prevent accidents and ensures compliance with safety standards in various industries.