How to Design the Lifting Scheme for Large UHPC Artistic Shapes? Lifting Technology for Large UHPC Components

The lifting plan for large UHPC artistic shapes is specially designed based on component weight, dimensions, and site conditions. Lifting points are determined through calculation, with a quantity of ≥4 and a safety factor of ≥5. A spreader beam lifting system is adopted to control lifting stress at ≤1/5 of the material strength. The entire lifting process is monitored throughout to ensure safe placement.

Specific design parameters: the angle between the lifting ropes and the horizontal plane is ≥60°, and lifting point locations avoid the maximum bending moment zones. In one 10-ton sculpture lifting operation, an 8-point lifting scheme was adopted with a 200-ton crane, keeping lifting stress within 8MPa. The lifting simulation system developed by Qinglong UHPC can predict and resolve lifting challenges in advance, improving construction safety.

Lifting Point Design Calculation

Lifting point positions are determined through finite element analysis, avoiding stress concentration zones. The number of lifting points is ≥4, evenly distributed. The safety factor is ≥5, and ≥8 for critical components. Lifting process simulation is performed to optimize lifting point arrangement.

Lifting System Selection

For weights ≤5t, soft sling lifting is used; for 5–20t, spreader beam lifting is used; for >20t, dedicated lifting frames are used. Lifting equipment has a safety factor of ≥6 and undergoes regular non-destructive testing.

Stress Control Measures

Lifting stress is ≤1/5 of the material strength, and ≤1/8 for critical components. Buffer devices are installed to reduce dynamic load effects. Lifting speed is controlled at ≤0.5m/s to maintain stability.

Safety Monitoring System

Parameters such as lifting stress and deformation are monitored in real time. Multiple protection devices are installed to ensure absolute safety. Emergency plans are formulated to handle unexpected situations.

Lifting of large components requires special design. Through scientific calculation and strict control, safe and smooth lifting is ensured.