Project Name: Tonglu Yintai City (Commercial Complex shopping mail Steel Structure Project)

Project Location: Tonglu County, Hangzhou City, Zhejiang Province

Founded Year:  2021 (construction started in June 2020)

·Core Business

This is a steel structure commercial building benchmark, integrating steel-framed shopping mall, multi-story commercial steel structure complex, column-free retail space, and mixed-use commercial facilities (fashion retail, catering, entertainment, parent-child zones). Adopting prefabricated steel structure technology, it enables efficient construction of large-span commercial buildings and sets a model for sustainable steel structure commercial development.

·Key Materials

Core components use Q355 high-strength structural steel for stability. The structure adopts steel frame-brace system, matched with box-shaped steel columns, H-shaped steel beams, and large-span steel trusses. Welding uses JM-58 solid welding wire + CO₂ gas shielded welding process to ensure firm steel structure connections.

·Key Dimensions

Total construction area: 173,700 ㎡ (2 underground floors, 4 above-ground commercial floors). E2 zone steel trusses: 27m span, 2.85m section height, 33 tons/single truss. Max steel structure hoisting height: 40m; building height: ~28m. Commercial floor height: 5.5m; total commercial area: 109,000 ㎡.

·Project Highlights & SEO Core Value

A classic application of large-span steel structure in commercial complexes. With high-strength structural steel and steel truss systems, it solves traditional spatial limitations, creating column-free open areas for diverse business formats. 650-ton crawler crane hoisting technology ensures efficient installation of heavy steel components, shortening the construction period by nearly 2 months and verifying steel structure hoisting advantages. As an ecological commercial steel structure benchmark, it combines prefabricated steel components with green construction concepts, conforming to the trend of low-carbon and sustainable commercial steel structure buildings.