Color Durability of Colored UHPC Curtain Wall Panels: Analysis of Influencing Factors, Testing Methods, and Improvement Strategies

**How to Set Up Temporary Supports for GRC Panel Installation — Analysis of Standards and Practical Key Points**

In the field of architectural decoration, GRC (Glass Fiber Reinforced Concrete), with its advantages of lightweight, high strength, and flexible styling, is widely used for exterior wall cladding panels and decorative components in high-end projects such as grand theaters, commercial complexes, and landmark buildings. However, the setting of temporary supports during GRC panel installation directly affects construction safety and final project quality. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group, drawing on the Technical Standard for Building Application of Glass Fiber Reinforced Cement (GRC) (JGJ/T423-2018) and over a thousand engineering projects, provides designers and contractors with systematic solutions from both standard requirements and practical details.

**I. Core Standard Principles for Temporary Supports of GRC Panels**

Temporary supports are the 'safety barrier' for GRC panels from hoisting to permanent fixing, and their setup must meet three major standard requirements: First, the load-bearing capacity must reach at least 1.5 times the self-weight of the GRC panel, while also considering dynamic factors such as wind loads and construction loads, as clearly specified in GRC Decorative Products (JC/T940-2022). Second, the stiffness of the support system must ensure no plastic deformation of the panel; especially for double-curved and large-span GRC components, BIM technology should be used to simulate load distribution and avoid cracking risks caused by unstable supports. Finally, support points should avoid weak areas of the GRC panel, such as openwork modeling areas or embedded bolt holes; the spacing must be strictly calculated based on panel dimensions and generally should not exceed 1.2 meters.

**II. Key Practical Steps for Setting Up Temporary Supports**

In the standardized construction process at Qinglong Group's Nanning production base, temporary support setup is divided into a 'three-step method': The first step is **positioning and layout**, using 3D laser scanning technology to verify installation reference lines, ensuring support points precisely correspond to the embedded parts of the building structure with errors controlled within ±3mm. The second step is **support structure selection**, with customized solutions for different scenarios — exterior wall cladding panels commonly use adjustable steel brackets with verticality fine-tuned via screw rods, while indoor ceiling GRC components are paired with aluminum alloy truss supports, balancing lightweight design and stability. The third step is **dynamic monitoring and unloading**: after the support system is installed, 24-hour settlement observation is required, and unloading follows the 'staged and symmetrical' principle to avoid panel displacement caused by excessive single-point loading.

**III. Common Problems and Expert Solutions**

In actual construction, temporary supports are prone to problems of 'over-support' or 'under-support'. For example, in a commercial complex project, GRC decorative moldings once bent due to excessive support spacing; the Qinglong technical team completed the rectification within 48 hours by combining additional diagonal supports with carbon fiber reinforcement. For high-temperature or severe cold environments, elastic support joints are recommended with allowances reserved for thermal deformation; in coastal areas, support components need anti-corrosion treatment to ensure durability. In addition, Qinglong's self-developed RFID quality traceability system can record support installation parameters in real time, providing data support for later maintenance.

**Conclusion**

The scientific setup of temporary supports is the 'invisible cornerstone' of GRC panel installation quality. As a national high-tech enterprise and a participant in formulating GRC industry standards, Qinglong Group has always maintained a 'meticulous and excellence-pursuing' attitude, deeply integrating detailed design, manufacturing, and construction installation, and providing customers with full-chain services from scheme optimization to after-sales maintenance. Whether for super high-rise landmarks or complex special-shaped components, Qinglong, with 28 years of technical accumulation and professional strength as a member of the International GRC Association, ensures the safety and aesthetic realization of every project, helping to fulfill the mission of 'Creating Aesthetic Architecture'.