How Many Connection Types Exist Between UHPC Decorative Components and Main Structures: Engineering Application Analysis

Connection technology defines the dual boundaries of architectural aesthetics and safety, and innovative connection solutions for UHPC decorative components are reshaping the expressiveness of modern architecture.

In the field of contemporary architectural decoration, UHPC (Ultra-High Performance Concrete) has become the material of choice for landmark buildings and high-end projects thanks to its ultra-high strength, excellent durability, and outstanding formability. As an industry leader with 28 years of full-chain experience in UHPC/GRC/GRG/GRP materials, Qinglong Group deeply understands the decisive role of connection systems in the safety and aesthetic realization of decorative components. This article systematically analyzes the mainstream connection methods between UHPC decorative components and main structures as well as their engineering practices, providing designers and owners with a professional reference from technology selection to practical application.

### 1. Four Core Connection Technology Systems for UHPC Decorative Components

The connection design of UHPC decorative components must balance structural safety, construction convenience, and architectural expressiveness. Currently, mature connection methods in the industry can be divided into four categories: mechanical connections, chemical connections, composite connections, and special node connections. Mechanical connections achieve rigid fixation through metal embedded parts and bolts, making them suitable for exterior wall cladding panels and special-shaped components with heavier loads; chemical connections use a combination of high-performance adhesives and anchors to achieve seamless joining on complex interfaces such as glass curtain walls; composite connections combine the advantages of both mechanical and chemical methods. In projects such as the Nanjing Road Century Plaza renovation, the Qinglong team innovatively adopted a composite solution of "stainless steel back bolt + epoxy resin," successfully solving the load-bearing and seismic challenges of light-transmitting UHPC components.

### 2. Engineering Adaptability Analysis of Key Connection Methods

Different connection technologies demonstrate differentiated advantages in engineering scenarios. Welded embedded part connections are widely used in large stadium projects; for example, the UHPC sunshade system at a provincial capital's Olympic Sports Center achieved a 12-meter cantilevered form through the rigid connection between hot-dip galvanized embedded parts and the main steel structure. Detachable bolt connections, on the other hand, are more suitable for commercial complex projects requiring later maintenance. Qinglong adopted this solution for the UHPC decorative profiles designed for a landmark shopping mall, reducing single-point replacement time to one-third of that of traditional methods. Notably, anti-corrosion treatment of connection nodes is crucial—Qinglong's self-developed zinc-aluminum alloy coating technology extends the service life of embedded parts to more than 50 years in marine climate environments.

### 3. Innovative Connection System Practices from a Full-Chain Perspective

As a national high-tech enterprise, Qinglong Group integrates connection technology innovation into the entire process from detailed design and manufacturing to construction and installation. In the Dongguan Women and Children's Activity Center project, the team used BIM technology to simulate the stress distribution of connection nodes for 128 UHPC decorative components, optimizing a combined solution of "concealed connectors + adjustable supports." This not only met the architect's requirements for the integrity of the building skin, but also kept on-site installation tolerances within ±2mm through standardized factory-prefabricated connectors. This integrated "design-manufacturing-construction" technical approach is precisely where Qinglong's core competitiveness as a UHPC/GRC/GRG/GRP custom manufacturer lies.

### 4. Three Key Decision-Making Dimensions for Connection Technology Selection

When selecting UHPC connection solutions, designers and owners need to comprehensively consider three major factors: building function, environmental conditions, and cost control. Exterior wall components of public buildings should prioritize seismic performance, and composite solutions based primarily on mechanical connections are recommended; interior decoration such as GRG ceiling systems can adopt lightweight chemical connections; while overseas projects, such as the UHPC curtain wall of a high-end hotel in Malaysia, require special attention to the weather resistance requirements that tropical climates impose on connection materials. Qinglong's 58 patents accumulated over 28 years and its participation in formulating multiple industry standards provide engineering-validated technical selection references for different scenarios.

From material innovation to breakthroughs in connection technology, UHPC is redefining the boundaries of possibility in architectural decoration. Guided by the mission of "Creating Beautiful Architecture," Qinglong Group will continue to drive technological upgrades of connection systems, providing global designers with solutions that combine safety and aesthetic value. In the development of future architecture, connection technology will not only safeguard structural safety, but also become an important part of architectural artistic expression.