Research and Application of Key Technologies for Achieving High Perforation Rates in UHPC Shapes

Driven by both contemporary architectural aesthetics and engineering technology, ultra-high performance concrete (UHPC), with its outstanding mechanical properties and design freedom, is becoming the core material for shaping the artistic quality of building skins. Especially in landmark buildings pursuing high-perforation designs, how UHPC materials can break through traditional process limitations to achieve a structural aesthetics combining strength and flexibility has become a focus of industry attention. As a full-chain solution provider with 28 years of deep expertise in the UHPC/GRC/GRG/GRP materials field, Qinglong Group has built unique technical barriers in this niche segment through technological innovation and engineering practice.

Technical Breakthroughs in UHPC High-Perforation Designs: From Material Properties to Structural Optimization

The core of achieving a high perforation rate lies in balancing material strength with design complexity. UHPC itself offers mechanical advantages of compressive strength exceeding 150MPa and flexural strength exceeding 30MPa, and the dense microstructure formed by its embedded steel fibers and ultra-fine silica fume provides the foundation for thin-walled and perforated designs. Through its independently developed fiber dispersion process, Qinglong Group precisely controls steel fiber content within the 2%-3% range, avoiding the fiber agglomeration caused by traditional mixing processes while ensuring efficient stress transfer in perforated areas. In the Nanjing East Road Century Plaza renovation project, this technology successfully unified a 35% perforation rate in light-transmitting concrete components with structural safety, winning the Silver Award of the First UHPC Construction Engineering Innovation Award (AALBORG WHITE Cup).

Digital Design and Intelligent Manufacturing: Solving the Engineering Challenges of Complex Perforations

The realization of high-perforation designs is inseparable from the deep empowerment of digital technology. Relying on the technical resources of its provincial-level R&D center, Qinglong Group has built a full-process system from parametric design to intelligent production. In the detailed design phase, the Rhino+Grasshopper platform is used for topology optimization, with algorithms simulating the stress distribution of perforated structures, upgrading the traditional experience-driven design model to a data-driven one. In production, industrial robots are introduced for five-axis machining, combined with a self-developed mold temperature control system, keeping the forming precision of perforated components within ±0.5mm. This closed-loop system of "design-simulation-manufacturing" successfully controlled the installation error of double-curved perforated GRC components within an industry-leading 2mm/m range in the Dongguan Women and Children's Activity Center project.

Full-Chain Service Support: Bringing Technology from the Laboratory to the Construction Site

As a national high-tech enterprise, Qinglong Group emphasizes the combination of technological innovation and engineering practice. To address the installation challenges of high-perforation UHPC components, the company developed a "3D laser scanning + modular hoisting" construction method, achieving precise assembly of complex perforated structures through real-time comparison between BIM models and on-site measured data. In after-sales maintenance, supported by a nationwide service network, a full lifecycle management system has been established covering material performance monitoring and structural health assessment. This full-chain service capability—from detailed design and manufacturing to construction and installation—has made Qinglong a strategic partner of renowned real estate groups such as Poly and China Overseas, with products exported to overseas markets including Malaysia and Australia.

From micro-level innovations in material science to the systematic integration of engineering technology, the realization of UHPC high-perforation designs is the result of synergy among material performance, digital technology, and engineering experience. Building on 28 years of industry accumulation, Qinglong Group is continuously expanding the application boundaries of UHPC through sustained R&D investment and standards development (participating in drafting the industry standard "General Technical Conditions for Non-Load-Bearing Ultra-High Performance Concrete (UHPC) Components"). Driven by the mission of "creating aesthetically beautiful architecture," more perforated building skins that integrate technology and art will be transformed from design drawings into urban landmarks through Qinglong's full-chain solutions.