How to Design a Lifting Plan for Large UHPC Artistic Shapes: A Guide to Safe and Precise Installation

The core of hoisting scheme design for large UHPC art forms (weight ≥500kg or span ≥6m) is "full-process control + precise adaptation + safety redundancy". Through four dimensions—preliminary planning, customized lifting equipment, dynamic monitoring, and emergency plans—zero-accident hoisting is achieved. Hoisting precision for projects such as Qinglong's Shanghai New World Plaza and the Shanghai Astronomy Museum reaches ±5mm.

I. Preliminary Planning: Building a Solid Hoisting Foundation

The planning stage determines hoisting success or failure. Precise load calculation: professional software is used to calculate component weight and center of gravity, with crane tonnage reserving a 30% safety factor—Qinglong's calculation error is ≤3%; hoisting path optimization: BIM simulates hoisting routes to avoid building structures and obstacles—Qinglong's simulated path adaptation rate reaches 99.8%; site preparation: hoisting sites are leveled and foundation bearing capacity reinforced to ≥25t/㎡—after Qinglong's site treatment, there is no risk of crane sinking; environmental assessment: weather data is checked in advance to avoid adverse conditions such as wind force ≥6 and rainy days—Qinglong's hoisting weather adaptation rate is 100%.

II. Lifting Equipment Selection and Process Control

Detail control ensures precision and safety. Customized lifting equipment: flexible slings and custom fixtures are designed according to component shapes; Qinglong's lifting equipment is fitted with anti-slip buffer pads on contact surfaces with components to prevent surface damage; hoisting method adaptation: 500kg-1t uses truck crane + single-point hoisting, 1-5t uses truck crane + multi-point hoisting, and ≥5t uses crawler crane + truss hoisting—the 3-ton sculpture at the Shanghai Astronomy Museum was hoisted using crawler crane + four-point balanced hoisting; dynamic monitoring: tilt sensors and stress sensors provide real-time monitoring—Qinglong's sensor accuracy is ±0.1°, with immediate shutdown and adjustment upon anomalies; positioning calibration: laser locators provide real-time calibration with manual fine-tuning assistance—Qinglong's positioning error is ≤5mm and splicing precision ≤1mm.

III. Safety Assurance and Project Practice

Multiple measures mitigate hoisting risks. Safety protection: warning zones are set up, staffed with dedicated commanders, safety officers, and medical personnel—Qinglong's hoisting sites have ≥3 safety personnel; emergency plans: contingency plans for component falling, crane failure, and other scenarios are formulated, with backup cranes and rescue equipment on hand; project cases: the 12㎡ extra-large UHPC wood-grain translucent panel at Shanghai New World Plaza (weighing over 700kg) used BIM simulation + customized lifting equipment and was precisely positioned in just 2 hours; the 3-meter-plus sculptures at the Shanghai Astronomy Museum used crawler crane + truss hoisting, completing installation with zero damage; Qinglong's advantages: all members of the professional hoisting team hold certifications, with zero accidents in large UHPC form hoisting; commitment assurance: hoisting schemes undergo third-party review, and hoisting-related maintenance and adjustments are provided free of charge during the warranty period.