On September 21, 2026, the expert demonstration meeting for the world’s first European‑Style Steel‑Frame structure was successfully convened in Yichang, Hubei. This review conducted special technical examination for the innovative European‑Style Steel‑Frame system applied to the workshop of Shengrong Intelligent Science and Technology Industrial Park. The project has passed expert demonstration and is ready for full‑scale implementation.

Located in Baiyang Industrial Park of Yichang High‑tech Zone, this project covers a total construction area of 12,905.82 ㎡. It is a single‑story large‑span industrial workshop with seismic fortification intensity of 6 degrees, serving as a demonstration project that adopts the innovative European‑Style Steel‑Frame structural system for the first time both in China and across the globe.

Innovative Structural System

Core features of the system:

1. Beams and columns adopt high‑efficiency shear‑resistant configuration with corrugated webs.
2. Rectangular concrete‑filled steel tubes are used for compression flanges, delivering both pressure‑bearing capacity and enhanced structural stability.
3. Adopt refined equal‑stiffness replacement calculation, compatible with general‑purpose design software.

Relying on the mechanical principle of shear resistance by corrugated webs together with pressure‑bearing and stability improvement of concrete‑filled steel tubes, the system achieves leap‑forward upgrading of structural performance.

High‑Level Expert Review

An authoritative expert panel from Central China was assembled for this demonstration meeting. Wen Siqing, Consultant Chief Engineer of CITIC General Institute of Architectural Design and Research, served as the group leader, while Zhang Ronghua, Hu Shui, Liu Min and Gu Chunbo acted as panel judges. These experts have long‑term in‑depth engagement in the fields of large‑span steel‑structure, industrial workshops and complex structures, with professional expertise covering new‑type components, structural stability, seismic design and other disciplines.

At the meeting, Wu Yichao, Chief Engineer of OPEN Group, gave the expert panel a detailed presentation on the technical principle, R&D history and core innovation points of the European‑Style Steel‑Frame. Yichang Sanxia Guangbo Architectural Design Co., Ltd., the design institute, simultaneously reported on the design concepts for implementing the project scheme. Representatives from participating entities including design, construction and supervision institutions attended the meeting jointly.

The expert panel thoroughly reviewed structural calculation documents, component system, joint details and mechanical mechanism. After thorough inquiry and discussion, the panel unanimously confirmed that the European‑Style Steel‑Frame scheme is feasible and spoke highly of this new‑type structural system.

On‑site Expert Comments

Components of this European‑Style Steel‑Frame system feature clear load‑bearing division. Concrete filled inside rectangular steel tubes can effectively restrain component buckling, delivering high overall structural stability and ample safety margin. The system can greatly reduce steel consumption and cut carbon emissions generated in metallurgical and fabrication phases at the source, which conforms to the development trend of low‑carbon, energy‑saving and green construction. While satisfying all structural‑safety indicators, it can effectively control comprehensive material and project investment with favorable engineering economy. It is suitable for pilot engineering application as a new‑generation portal rigid‑frame technology.

Signed and confirmed by the five experts, the world’s first European‑Style Steel‑Frame system has officially passed the expert demonstration.

Important Exploration of New Steel‑Structure Technology

The successful expert‑demonstration approval of this world‑original European‑Style Steel‑Frame system signifies that it offers a brand‑new technical option for industrial portal rigid‑frame structures. It enables steel‑structure technology to achieve upgrades toward better stability, lower material consumption and lower carbon emissions, and builds valuable precedents for the engineering application of innovative structures for large‑span domestic industrial workshops.

Going forward, the project team will keep advancing detailed design work and go all out to build the world’s first benchmark demonstration workshop of European‑Style Steel‑Frame, providing brand‑new technical reference for similar industrial steel‑structure projects.