Analysis of Key Technical Points and Design Strategies for Combining UHPC Curtain Walls with Glass Curtain Walls

When architectural aesthetics meet technical performance in curtain wall design, the combined application of UHPC (Ultra-High Performance Concrete) and glass curtain walls is becoming an important direction for innovation in modern building envelopes. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group deeply understands the technical essence of the synergistic application of these two materials. This article analyzes the core technical points of combined curtain wall systems from three dimensions: material property matching, structural safety design, and performance optimization strategies.

Material Property Synergy Strategies for UHPC and Glass Curtain Walls

The ultra-high strength of UHPC (compressive strength up to 150-200MPa) forms a natural complement to the light transmittance of glass, but close attention must be paid to the compatibility of the materials' physical properties. During the detailed design stage, thermal stress simulation should be used to calculate the difference in linear expansion coefficients between the two materials (approximately 10×10⁻⁶/℃ for UHPC and 8×10⁻⁶/℃ for glass), and elastic buffer layers should be provided at connection joints to avoid interfacial stress concentration caused by thermal deformation. In the Century Plaza renovation project on Nanjing East Road, Qinglong's technical team innovatively adopted a combination of translucent UHPC and ultra-clear glass, using BIM technology to simulate temperature field distribution and keep the deformation coordination error between the two materials within 0.3mm.

Structural Safety and Connection System Design for Combined Curtain Walls

Structural safety is a core consideration for combined curtain walls, requiring a composite load-bearing system of "UHPC load-bearing framework + glass enclosure". When UHPC components serve as the supporting structure, refined mechanical analysis should be performed, with emphasis on verifying flexural capacity (high-quality UHPC can achieve flexural strength above 20MPa) and the durability of the anchoring system. In the Dongguan Women and Children's Activity Center project, Qinglong combined UHPC sunshade canopies with glass curtain walls, achieving component installation errors of ≤2mm through 3D scanning positioning technology, and innovatively developed stainless steel embedded connectors that increased joint pull-out resistance by 40%, meeting the safety requirements for a 50-year service life.

Performance Optimization and Whole-Life Cycle Cost Control

Combined curtain wall systems must achieve the unity of mechanical performance, energy efficiency, and aesthetic effect. In terms of energy-saving design, UHPC's excellent thermal insulation performance (thermal conductivity of 0.8-1.2W/(m·K)) can be combined with Low-E glass to create composite insulation construction, improving energy savings by 15%-20% compared with traditional curtain walls. In overseas projects, Qinglong optimized UHPC component cross-sections through parametric design, achieving a 30% weight reduction while ensuring strength, and, together with standardized production processes, reduced overall project costs by 12%. At the same time, a whole-life cycle maintenance plan should be established, leveraging UHPC's strong weather resistance (≥300 freeze-thaw cycles) to reduce later maintenance costs.

As a national high-tech enterprise and a drafting unit for multiple industry standards, Qinglong Group has always upheld the mission of "creating beautiful architecture" and accumulated rich engineering experience in the combined application of UHPC and glass curtain walls. Full-chain service capabilities spanning material selection, detailed design, and construction installation ensure that every project achieves a perfect balance between technical feasibility and aesthetic creativity. In the future, with the development of BIM technology and modular construction, the combined application of UHPC and glass curtain walls will open up broader space for innovation, injecting new vitality into building envelope design.