Research and Application of Anti-Detachment Measures for UHPC Exterior Wall Panels in High-Rise Residential Buildings

Guarding High-Rise Safety: Innovative Practices in Anti-Detachment Technology for UHPC Exterior Wall Panels

In the field of high-rise residential buildings, the safety performance of exterior wall panels directly affects the lives and property of occupants. With the widespread application of ultra-high performance concrete (UHPC) materials in architectural decoration, how to ensure their anti-detachment performance in high-rise environments has become a core issue of industry concern. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group has always placed structural safety and technological innovation first, building a safety protection system for UHPC exterior wall panels in high-rise residential buildings through systematic upgrades in detailed design, material optimization, and construction techniques.

UHPC Material Properties: Inherent Advantages in Anti-Detachment Performance

As a new generation of building material, UHPC provides a material foundation for the anti-detachment of exterior wall panels with its ultra-high strength (compressive strength up to 150-200MPa), excellent toughness, and durability. Compared with traditional concrete, UHPC significantly improves interfacial bond strength and crack resistance by incorporating steel fibers and ultra-fine active mineral admixtures. Qinglong Group strictly controls the water-binder ratio and curing process during production, ensuring that the porosity of UHPC components remains below 1%, reducing the risk of detachment caused by material defects at the source. Meanwhile, combining the lightweight, high-strength characteristics of GRC materials, the mechanical properties of exterior wall panels are further optimized through composite structural design, achieving a balance between safety and lightweight construction.

Full-Chain Technical Solutions: Anti-Detachment Assurance from Design to Construction

Based on 28 years of engineering practice, Qinglong Group has built a four-dimensional anti-detachment technical system covering "design-production-installation-maintenance." In the detailed design phase, BIM technology is used for parametric modeling to precisely calculate stress distribution under wind loads and seismic actions, optimizing anchor joint design to ensure that the fixing-point bearing capacity of each UHPC exterior wall panel meets the requirements of the T/CBMF 171-2022 standard "Ultra-High Performance Concrete (UHPC) Exterior Wall Panels." The production stage introduces automated production lines and non-destructive testing technology, conducting 100% mechanical performance tests on components, with substandard products firmly rejected. During construction, the innovative "3D laser positioning + modular installation" process is adopted, keeping errors within ±2mm and avoiding stress concentration caused by installation deviations.

Leading Industry Standards: Strengthening the Safety Baseline

As a participating unit in formulating the industry standard "General Technical Conditions for Ultra-High Performance Concrete (UHPC) Non-Load-Bearing Components," Qinglong Group has been deeply involved in setting the anti-detachment performance indicators for UHPC exterior wall panels. Through empirical data accumulated from hundreds of engineering cases, the group proposed a "double-insurance anchoring system" solution—adding chemical anchor bolts for auxiliary fixing on top of traditional mechanical anchoring, increasing pull-out resistance by more than 40%. At the same time, a comprehensive after-sales maintenance mechanism has been established, with regular ultrasonic testing and structural assessments of completed projects, forming a closed loop of full-life-cycle safety management.

From the UHPC curtain wall system of a super high-rise residential project in Guangzhou to the externally mounted decorative panels of the riverside building complex in Shanghai, Qinglong Group practices its mission of "creating beautiful architecture" through technological innovation. In the future, as UHPC materials become more widespread in the construction field, Qinglong will continue to deepen its research and development of anti-detachment technology, providing more reliable material solutions for the safe construction of high-rise residential buildings and driving the industry toward higher quality and higher safety standards.