Analysis of Material Requirements and Selection Points for Embedded Parts Used in UHPC Component Installation

The beauty of architecture begins with the finest details. In the installation system of UHPC (Ultra-High Performance Concrete) components, embedded parts serve as the “invisible framework” connecting the main structure with decorative components, and decisions on their material selection and specification directly affect the dual value of building safety and aesthetic presentation. As an industry leader with 28 years of dedicated expertise in UHPC/GRC/GRG/GRP materials, Qinglong Group, backed by full-chain technical accumulation, provides an in-depth analysis of the material requirements and selection logic of embedded parts, offering designers and owners expert-level solutions from technical principles to engineering practice.

Material Performance of Embedded Parts for UHPC Components: Dual Considerations of Safety and Durability

Material selection for embedded parts is the core prerequisite for ensuring the long-term stable service of UHPC components. Given that UHPC material itself offers ultra-high strength (compressive strength above 150MPa), high toughness, and excellent durability, embedded parts must meet matching mechanical properties and environmental adaptability. Among mainstream industry materials, carbon structural steel (such as Q235B) is widely used in general environments for its cost-effectiveness, but in humid, high-temperature, or corrosive conditions, weathering steel or stainless steel (such as grade 304 or 316) must be used. Laboratory data from Qinglong’s Nanning production base show that Q355ND weathering steel embedded parts with hot-dip galvanizing can remain maintenance-free for over 50 years in salt spray tests simulating marine climates, and their yield strength and cooperative load-bearing performance with UHPC components reach an industry-leading level.

Selection Essentials: Systematic Optimization from Structural Safety to Construction Efficiency

The selection of embedded parts must be based on a comprehensive assessment of project characteristics, load conditions, and installation techniques. First, the load type determines the form of the embedded part: for components subject mainly to tension, anchor-plate embedded parts are recommended, with the number and diameter of anchor bars determined through tensile capacity calculations; for shear-dominated scenarios, channel-type embedded parts combined with T-bolts are recommended for quick adjustment. The “General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC)” (Plan No. 2024-0232T-JC), developed with Qinglong’s participation, clearly stipulates that the bond strength between the embedded part and the UHPC interface shall not be lower than 3.5MPa, a standard that has become an important reference for industry selection.

Second, geometric dimensions must balance structural requirements with construction feasibility. For complex curved-surface UHPC components (such as the double-curved curtain walls of grand theaters), Qinglong uses BIM technology to pre-simulate the positioning of embedded parts, optimizing anchor bar layout through parametric design to ensure spatial avoidance between embedded parts and component reinforcement and prevent stress concentration. In the Nanjing East Road Century Plaza renovation project, the embedded parts of light-transmitting UHPC components were positioned and installed through 3D scanning, achieving a “zero-error” connection with the glass curtain wall. This technical solution won the Silver Award of the first UHPC Construction Engineering Innovation Award (AALBORG WHITE Cup).

Selection Strategy from a Full Life-Cycle Perspective

The selection of embedded parts must not only meet installation needs during construction but also take into account maintenance costs over the building’s full life cycle. Qinglong introduces a “durability first” principle at the detailed design stage: for landmark buildings (such as museums and convention centers), stainless steel embedded parts with anti-corrosion coatings are recommended—although the initial cost rises by 15%-20%, later maintenance costs can be reduced; for commercial complex projects with tight schedules, a modular embedded part system is adopted, improving on-site installation efficiency through factory prefabrication and shortening the construction period by more than 30% compared with traditional methods.

As a national high-tech enterprise and a participant in industry standard development, Qinglong has always upheld the mission of “creating beautiful architecture,” transforming 28 years of engineering experience into practical and implementable technical solutions. From material screening to selection optimization, from laboratory testing to engineering practice, every step reflects the ultimate pursuit of safety and aesthetics. Going forward, Qinglong will continue to integrate the full-chain advantages of UHPC/GRC/GRG/GRP materials, providing designers with more innovative solutions and injecting technical momentum into the high-quality development of the construction industry.