How to Design Lifting Plans for Large UHPC Artistic Forms? A Guide to Safe and Precise Installation

The core of lifting solutions for large UHPC artistic structures (weighing ≥500kg or spanning ≥6m) lies in "early planning, lifting method selection, process control, and safety assurance". Through BIM simulation, custom lifting fixtures, and real-time monitoring, safe and precise lifting is achieved, with zero lifting accidents on Qinglong projects such as Shanghai New World Plaza and the Shanghai Astronomy Museum.

I. Early Planning: Laying the Foundation for Lifting

Early preparation determines the success or failure of lifting. Load calculation: calculating the weight and center of gravity of the UHPC structure to match crane capacity; Qinglong uses professional software for calculation, reserving a 30% safety factor for crane capacity. Lifting path planning: BIM simulates the lifting route to avoid obstacles; Qinglong's simulation error is ≤50mm, ensuring a clear path. Site preparation: leveling the lifting site and reinforcing the foundation; Qinglong's site bearing capacity is ≥25t/㎡ to prevent crane sinking. Custom lifting fixtures: specialized fixtures (flexible slings, custom clamps) are designed according to the structure; Qinglong installs anti-slip pads on contact surfaces between fixtures and components to avoid surface damage.

II. Lifting Method Selection and Process Control

Selection and control ensure precision and safety. Lifting methods: for weights of 500kg-1t, truck cranes with single-point lifting are used; for 1-5t, truck cranes with multi-point lifting; for ≥5t, crawler cranes with truss lifting; Qinglong's 3-ton sculpture at the Shanghai Astronomy Museum used a crawler crane with four-point lifting. Hoisting control: slow hoisting (speed ≤0.5m/s), pausing for inspection at 100mm above the ground; Qinglong inspects fixtures, ropes, and connectors before hoisting and proceeds only when no issues are found. Positioning adjustment: real-time monitoring with laser positioning instruments and manual fine-tuning assistance; Qinglong's positioning error is ≤10mm and splicing error ≤0.5mm. Fixing and reinforcement: temporary fixing immediately after positioning, followed by permanent connection; Qinglong's temporary fixing capacity is ≥1.5 times the component weight.

III. Safety Assurance and Project Practice

Multiple measures mitigate lifting risks. Safety protection: setting up warning zones with dedicated commanders and safety officers; Qinglong has ≥3 safety personnel at lifting sites. Real-time monitoring: using inclination sensors and stress sensors to monitor tilt and stress during lifting; Qinglong's sensor precision is ±0.1°, with immediate shutdown upon anomalies. Weather adaptation: lifting stops when wind force reaches 6 or above or in rainy conditions; Qinglong checks weather forecasts before lifting to ensure suitable conditions. Project cases: a 12㎡ extra-large UHPC faux-wood translucent panel (weighing over 700kg) at Shanghai New World Plaza was lifted with a truck crane using four-point lifting with a BIM-simulated path, taking only 2 hours with precise positioning; a sculpture over 3 meters tall (weighing 3 tons) at the Shanghai Astronomy Museum used crawler crane + truss lifting with positioning error ≤5mm. Qinglong's advantages: a professional lifting team with all personnel certified for work, zero accidents in large UHPC structure lifting, and full-process services covering lifting solution design, implementation, and acceptance.