Note:
Formula for Dynamic Lifting Load:
When lifting precast units, dynamic forces arise due to acceleration, requiring a correction factor. The formula to calculate the dynamic lifting load is:
Why Dynamic Load Calculation is Important?
Ensuring proper load calculation prevents equipment overload, structural damage, and workplace accidents.
Key Parameters That Affect Lifting Load:
- Static Load: Weight of the object being lifted.
- Lifting Coefficient (f): Factor depending on the type of lifting equipment.
- Lifting Speed: In high-speed lifting, additional forces impact the dynamic load.
Real-Life Applications:
- Construction: Cranes lifting heavy steel beams.
- Factories: Overhead cranes moving machinery.
- Shipbuilding: Lifting large ship parts with mobile cranes.
Standard Values of Lifting Coefficient (f):
| Lifting Equipment |
Dynamic Factor (f) |
| Tower Crane |
1.1 |
| Overhead Crane |
1.3 |
| Mobile Crane |
1.4 |
| High-Speed Lifting |
1.6 |
Conclusion:
By using the correct dynamic load factor, lifting operations can be optimized for safety, efficiency, and reliability.