How to Integrate UHPC Shapes with Metal Components: A Complete Analysis of Stable and Compatible Solutions

The core of combining UHPC shaping with metal components lies in "adapted connection methods + anti-corrosion compatibility + deformation coordination + structural stability". Through four major processes—embedded, externally mounted, welded, and bolted connections—the unity of function and aesthetics is achieved. With 28 years of technical expertise, Qinglong has ensured that the joints of projects such as the Shanghai Astronomy Museum and Sanya Yingbin No.1 remain free from loosening and corrosion for 10 years.

1. Core Connection Methods and Applicable Scenarios

The four methods cover different load-bearing and decorative requirements. Embedded connection: stainless steel connectors (steel plates/bolts) are embedded simultaneously during production, suitable for load-bearing connections; Qinglong's embedding depth is ≥50mm with bond strength ≥1.0MPa—the load-bearing connection of the Shanghai Astronomy Museum sculpture adopts this method. Externally mounted connection: after UHPC forming, metal components are externally mounted on the surface via bolts, suitable for decorative bonding; Qinglong's externally mounted metal parts are ≥3mm thick with fixing point spacing ≤500mm—the decorative lines of Sanya Yingbin No.1 adopt this process. Welded connection: pre-embedded metal inserts are welded to metal components on site, suitable for large-span load-bearing; Qinglong's weld seams are coated with anti-corrosion coating, with strength ≥5.0MPa. Bolted connection: stainless steel bolts penetrate through UHPC to fix metal components, suitable for detachable and adjustable scenarios; Qinglong's bolts have pull-out resistance ≥5kN for easy maintenance.

2. Key Technologies Ensuring Bonding Quality

Multi-dimensional technologies mitigate the risk of connection failure. Anti-corrosion treatment: metal components are made of 304/316 stainless steel or hot-dip galvanized with fluorocarbon coating; Qinglong's metal parts withstand salt spray corrosion for ≥1500 hours, suitable for coastal environments. Elastic joint design: rubber gaskets are set between connectors and UHPC to absorb deformation from thermal expansion and contraction; Qinglong's gaskets have an elastic recovery rate ≥90%, allowing ±3mm displacement. Bond enhancement: embedded connectors feature anti-slip grooves + sandblasting on the surface; Qinglong's anti-slip grooves are ≥3mm deep, increasing bond strength by 40%. Sealing protection: joints are filled with weather-resistant sealant (elongation ≥500%); Qinglong's sealing system achieves water-tightness of 1.5kPa, preventing rainwater penetration and corrosion.

3. Qinglong's Project Practice and Technical Advantages

Real-world cases verify bonding reliability. Shanghai Astronomy Museum public art sculpture: the UHPC sculpture and metal supports are combined using "embedding + welding", with load capacity ≥5 tons and no loosening after 5 years of use. Sanya Yingbin No.1 commercial complex: UHPC exterior walls and metal decorative lines are connected via bolts, with no corrosion after 6 years in a high-salt-spray coastal environment. Technical support: 8 patents related to connection methods, with participation in formulating the "Technical Specification for UHPC and Metal Component Connections". Full-process service: from connection design and production embedding to on-site installation, Qinglong provides one-stop solutions. Quality commitment: an 8-10 year warranty on connection areas, covering loosening, corrosion, and other issues, with free maintenance during the warranty period.