How to Design a Lifting Plan for Large UHPC Artistic Shapes? A Full-Process Analysis of Qinglong's Safe and Efficient Hoisting

The hoisting plan for large UHPC art sculptures (weight ≥5t or height ≥3m) must balance safety, precision, and feasibility. Through four core phases—pre-hoisting preparation, plan customization, equipment selection, and on-site execution—zero-accident, efficient hoisting can be achieved. Leveraging 28 years of experience in hoisting large components, Qinglong Group has completed the hoisting of UHPC sculptures weighing over 10t and exceeding 5m in height in the Shanghai Astronomy Museum public art project and the Algeria Ouargla Hotel facade project, with hoisting precision of ≤±2mm, earning authoritative industry recognition.

1. Pre-Hoisting Preparation: Laying the Safety Foundation

Load and center-of-gravity calculation: Through 3D modeling and actual weighing, the weight and center of gravity of the UHPC sculpture are precisely calculated, and lifting points are determined (≥2 lifting points, symmetrically distributed). Qinglong uses BIM software to simulate the center-of-gravity distribution with an error of ≤±50mm. Site and environment assessment: Survey the bearing capacity of the hoisting site (≥1.2 times the hoisting weight), the working space, and surrounding obstacles; clear the hoisting route and reserve sufficient slewing space. Qinglong's on-site survey precision reaches ±100mm, ensuring smooth equipment passage. Lifting appliance and lifting point design: Custom lifting appliances (vacuum suction cups, wire rope slings) are made according to the sculpture's characteristics; lifting points use pre-embedded lifting rings or reinforced lugs with tensile strength ≥1.2 times the hoisting weight. Qinglong's lifting appliances are load-tested with a safety factor ≥1.5.

2. Plan Customization: Scientifically Planning Hoisting Details

Hoisting method selection: Smaller sculptures (5-10t) use single-crane hoisting, while extra-large sculptures (≥10t) use dual-crane coordinated hoisting to ensure stable posture. Qinglong's 12t-class UHPC sculpture was lifted by two cranes with a smooth, sway-free process. Hoisting path optimization: Simulate the entire hoisting process with BIM software to avoid obstacles such as overhead pipelines and buildings, optimizing hoisting angle and speed. In the Shanghai New World UHPC wood-effect translucent panel project, path optimization improved hoisting efficiency by 30%. Emergency plan formulation: Response plans are drawn up for emergencies such as equipment failure and sudden weather changes, with backup lifting appliances and rescue equipment on hand. Qinglong's hoisting projects have a 100% emergency plan approval rate, ensuring controllable risks.

3. Equipment Selection: Matching Sculpture Characteristics and Site Conditions

Crane selection: Cranes are chosen according to hoisting weight, height, and operating radius, with rated lifting capacity ≥1.5 times the sculpture weight. Qinglong commonly uses truck cranes (25-100t) and crawler cranes (100-300t) to meet the needs of projects of different scales. Auxiliary equipment configuration: Laser positioning instruments (positioning precision ≤±1mm), guide ropes, and tailing ropes are provided to control the sculpture's posture and avoid collisions. Qinglong's laser positioning system adjusts the hoisting position in real time to ensure precise placement. Lifting appliance material requirements: Lifting appliances are made of high-strength alloy steel with anti-corrosion surface treatment; vacuum suction cup appliances have a suction force ≥2 times the hoisting weight. Qinglong's lifting appliances undergo regular testing with a 100% pass rate.

4. On-Site Execution: Standardized Operations Ensure Safety

Trial lift inspection: Before formal hoisting, a trial lift (lifting height 0.5-1m) is conducted to check the stress on lifting appliances and lifting points as well as the sculpture's stability; formal hoisting proceeds only after confirmation. Qinglong strictly applies the "three-check system" in trial lifts to eliminate safety hazards. Precise placement: Laser positioning instruments provide real-time position feedback, and signal personnel coordinate operations using standardized hand gestures and intercom systems to adjust the sculpture's posture to the preset position. Qinglong controls hoisting precision within ±2mm, achieving perfect alignment. Fixing and acceptance: Temporary fixing is carried out immediately after placement, followed by installation of permanent connectors. After hoisting, appearance inspection and strength testing are performed. Qinglong's hoisting acceptance pass rate is 100%, ensuring project quality.

5. Qinglong's Hoisting Advantages and Project Evidence

Professional team support: A certified hoisting team of more than 50 members, each with over 8 years of industry experience, capable of meeting hoisting needs in complex scenarios. Project evidence: The 3-meter-high UHPC sculpture at the Shanghai Astronomy Museum was hoisted using single-crane hoisting plus laser positioning and placed successfully in one attempt; the hoisting of 50mm-thick UHPC hollow panels for the Algeria Ouargla Hotel overcame the dual challenges of overseas transport and on-site operations with zero hoisting accidents. Technical innovation: Qinglong participated in formulating the hoisting standard "General Technical Conditions for Non-Load-Bearing Ultra-High Performance Concrete (UHPC) Components," promoting the standardized development of the industry.

The hoisting plan for large UHPC art sculptures requires scientific planning and standardized execution. With full-process control, professional equipment, and rich experience, Qinglong Group achieves safe and efficient hoisting. Choosing a manufacturer with core capabilities in hoisting large components is key to the successful implementation of UHPC art sculpture projects.