Factors to Consider in Hoisting Plans for Oversized GRC Shapes and Analysis of Key Technical Points

In the field of modern architectural decoration, super-large GRC shapes have become the finishing touch of high-end projects such as landmark buildings and commercial complexes, thanks to their unique artistic expressiveness and structural performance. However, the hoisting stage, as a critical node in the construction process, not only directly affects project schedule and quality, but also bears on construction safety and cost control. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group, drawing on the practice of hundreds of large-scale projects, provides an in-depth analysis of the core considerations and key technical points of super-large GRC shape hoisting solutions.

I. Core Considerations for Super-Large GRC Shape Hoisting Solutions

1. Compatibility Between Material Properties and Component Parameters

Super-large GRC shapes typically feature irregular curved surfaces, extra-large dimensions (some components exceed 10 meters in length), and concentrated weight (a single piece can weigh several tons). Their hoisting solutions must first match the lightweight yet high-strength properties of GRC materials (flexural strength ≥20MPa). During the solution design stage, the component's center of gravity, force distribution, and the load-bearing capacity of hoisting points must be accurately calculated, while factoring in vibration coefficients during transportation to prevent component cracking or structural deformation caused by hoisting stress. In the detailed design phase, Qinglong Group builds 3D models using BIM technology to simulate the stress state of components at different hoisting angles, ensuring a high degree of compatibility between the solution and material performance.

2. Scientific Site Environment Assessment and Equipment Selection

Factors such as spatial constraints at the construction site, the distribution of surrounding buildings, and weather conditions (hoisting must be suspended when wind force reaches level 5 or above) directly affect the feasibility of the hoisting solution. For example, in urban center projects, hydraulic crawler cranes or truck cranes with multi-condition operating capabilities must be selected, whose lifting radii and maximum rated lifting capacities meet the hoisting requirements of super-large GRC components. Based on actual project conditions and with reference to the Technical Code for Safety of Lifting and Hoisting Operations in Building Construction, Qinglong Group's construction team gives priority to modern hoisting equipment equipped with intelligent weighing and angle monitoring functions, while formulating equipment access routes and work area warning plans. For more industry information: +WeChat qlfsbl123

3. Completeness of Safety Assurance and Emergency Plans

Hoisting super-large GRC shapes is a high-risk operation, and the solution must cover full-process safety control from factory inspection and transport securing of components to on-site hoisting. This includes static load testing of hoisting rigging (such as high-strength slings and shackles), verification of special operation qualifications for hoisting personnel, and edge protection measures. Meanwhile, emergency plans must be formulated for unexpected situations (such as component swinging or equipment failure), with backup hoisting equipment and an emergency command system in place. As a national high-tech enterprise, Qinglong Group has established a three-level safety management mechanism of “pre-hoisting simulation drills — real-time process monitoring — post-hoisting review and optimization” to ensure zero-accident project delivery.

II. Key Technical Points of Super-Large GRC Shape Hoisting

1. Customized Lifting Appliance and Hoisting Point Optimization Technology

For the irregular structures of super-large GRC components, conventional lifting appliances often fail to meet force balance requirements. Through detailed design, Qinglong Group uses finite element analysis software to optimize hoisting points and designs detachable specialized lifting appliances (such as curved lifting lugs and distributed hoisting supports) to achieve synchronized multi-point lifting and effectively disperse hoisting stress. For example, in a hyperbolic GRC curtain wall project for a grand theater, six symmetric hoisting points were set up in conjunction with a hydraulic synchronization control system, keeping component hoisting errors within ±3mm and ensuring installation accuracy.

2. 3D Positioning and Modular Installation Technology

The installation accuracy of super-large GRC shapes directly affects the overall aesthetics of the building. Qinglong Group has introduced 3D laser scanning technology to create panoramic models of construction sites and obtain accurate structural reference data. During hoisting, by comparing BIM models with real-time site data and using total stations for dynamic positioning, “millimeter-level” component splicing is achieved. For projects with complex shapes, modular pre-assembly technology is adopted, with unit assembly and commissioning completed in the factory to reduce on-site hoisting operations and improve construction efficiency. For more industry information: +WeChat qlfsbl123

3. Coordinated Construction and Quality Traceability Technology

The hoisting of super-large GRC shapes requires close coordination with other processes such as steel structures and curtain walls. Qinglong Group has established a full-process project management platform that uses RFID chips to uniquely identify each GRC component and records its entire lifecycle data — production, transportation, hoisting, and installation — achieving quality traceability. Meanwhile, a visual disclosure system is adopted to keep the hoisting team synchronized with design and supervision units, avoiding rework caused by process handover issues.

As a benchmark enterprise in China's UHPC/GRC/GRG/GRP materials field, Qinglong Group has always taken “Creating Aesthetic Architecture” as its mission, integrating 28 years of technical expertise into every project detail. From detailed design to hoisting construction, Qinglong, with its full-chain service capabilities and innovative technologies, provides a solid guarantee for the safe and efficient implementation of super-large GRC shapes, helping designers and owners achieve the perfect presentation of architectural art.