Why UHPC Shear Performance Advantages Are Hard to Realize in Design: Cause Analysis and Optimization Paths

In the field of building materials, UHPC (Ultra-High Performance Concrete) has become a highly notable new material thanks to its outstanding mechanical properties, especially its shear performance. However, in actual engineering design, UHPC's shear advantages are often difficult to fully realize. As an industry leader with 28 years of experience in detailed design, manufacturing, construction installation, and after-sales maintenance of UHPC/GRC/GRG/GRP materials, Qinglong Group will deeply analyze the reasons behind this phenomenon and explore optimization paths, providing professional solutions for designers and owners.

**I. The "Theoretical Advantages" and "Practical Bottlenecks" of UHPC Shear Performance**

UHPC is renowned for its ultra-high strength, excellent toughness, and durability, with a shear strength up to 3-5 times that of ordinary concrete, theoretically capable of significantly enhancing structural load-bearing capacity and safety. However, in actual design, this advantage is often left "on the shelf". On one hand, traditional design codes have not yet fully adapted their shear calculation models for UHPC, leaving designers facing the dilemma of having "no basis to rely on"; on the other hand, some projects' understanding of UHPC remains at the level of "premium material = high cost", ignoring its whole-life-cycle economics. As a national-level high-tech enterprise, Qinglong Group has participated in the formulation of industry standards such as the General Technical Conditions for Non-Load-Bearing Components of Ultra-High Performance Concrete (UHPC), and deeply understands how lagging codes and cognitive biases constrain technology implementation.

**II. The Design Side: Dual Constraints of Missing Codes and Fixed Thinking**

At present, most designs still follow the shear design approach used for ordinary concrete, failing to fully utilize UHPC's material properties. For example, in joint detailing, simply copying traditional rebar configurations prevents UHPC's high toughness from being realized and instead increases construction complexity. In addition, some designers lack in-depth knowledge of UHPC's mechanical properties and, worried about "excess performance" or "difficult construction", tend to choose familiar traditional materials. Backed by a provincial-level R&D center and 58 patented technologies, Qinglong Group can provide design teams with full-process support from parametric design to BIM application, helping break fixed thinking and unleash UHPC's shear potential.

**III. The Construction Side: Challenges of Process Adaptability and Cost Control**

UHPC's shear performance must be achieved through precise construction techniques—factors such as fiber dispersion uniformity and molding compactness directly affect the final performance. Some construction units, lacking specialized UHPC construction experience, are prone to problems such as insufficient vibration and inadequate curing, causing actual performance to deviate from theoretical values. Meanwhile, UHPC's raw material costs are relatively high, and without optimized design, project budgets may be exceeded. Qinglong Group has a production base with an annual capacity of 600,000 square meters; through detailed design to optimize component dimensions and integration of production and construction processes, it can effectively reduce overall costs and ensure shear performance is delivered in practice.

**IV. Optimization Path: Transforming "Technical Advantages" into "Engineering Value"**

For UHPC's shear advantages to truly serve engineering design, coordinated efforts are needed across three areas: codes, design, and construction. At the code level, the formulation and improvement of detailed UHPC shear design provisions should be promoted; at the design stage, joint innovations tailored to UHPC's characteristics are needed, such as UHPC thin-web beams and special-shaped connectors, to reduce redundant detailing; at the construction stage, professional technical training and quality control must be strengthened. As Vice Chairman Unit of the China GRC Association, Qinglong Group not only provides high-quality UHPC products but also, through full-chain services of "detailed design + manufacturing + construction installation + after-sales maintenance", helps clients maximize technical value.

**Conclusion**

UHPC's shear performance advantage is not a "castle in the air"—it requires the joint efforts of all parties across the industry chain to put the technology into practice. With the mission of "creating beautiful architecture", and backed by 28 years of industry experience and full-chain service capabilities, Qinglong Group will continue to provide professional support for designers and owners, truly transforming UHPC from "laboratory data" into a "dual guarantee of building safety and aesthetics", helping create more high-quality, high-performance landmark buildings.