YOUR STEEL STRUCTURE ENGINEERING EXPERT
We are an international company specializing in steel structure construction and export, with over 17 years of experience in steel structure engineering. We have provided high-quality steel structure building solutions to more than 60 countries worldwide. Our company holds international quality system certifications and possesses integrated service capabilities encompassing design, manufacturing, construction, and export.
Prefabricated Portal Steel Structure Cold Storage Facility
This structure is fabricated from high-strength steel (Q235/Q355) and features integral hot-dip galvanized surface treatment. All steel components—including columns, beams, purlins, and connectors—are subjected to high-temperature galvanization, resulting in a dense, metallurgically bonded zinc coating that ensures comprehensive corrosion protection from the substrate outward. The coating is uniform and durable, with strong adhesion that resists peeling and cracking. It effectively withstands rain erosion, UV degradation, and atmospheric corrosion. Compared to conventional spray painting or electrogalvanizing, the overall hot-dip galvanizing process offers a longer service life, ensuring long-term, stable performance in outdoor environments and enhancing the overall durability and safety of the structure.
Multifunctional Portal Steel Structure Cold Storage Building
Core Features & Advantages
The main structure of steel-frame warehouses is constructed using high-strength steel, ensuring excellent overall stability. Compared to traditional brick-and-concrete warehouses, steel-frame warehouses have a lighter dead weight, which helps reduce foundation costs; the prefabricated assembly method minimizes labor and material waste, resulting in lower overall costs.
♦ Full galvanization – zero maintenance;
♦ Fast installation – 4–8 weeks;
♦ Column-free space;
♦ Relocatable & expandable.
Applications
Hot-dip galvanized Q235B/Q355B steel portal frame warehouses are corrosion-resistant and durable, offering spacious interiors. They are suitable for industrial plants, logistics warehouses, industrial sheds, coastal storage facilities, and various material storage areas, featuring a wide range of applications and excellent long-term stability.
♦ Industrial storage;
♦ Agricultural storage;
♦ Harsh environments;
♦ Temporary facilities.
Technical Superiority vs Concrete Structures
| Performance Metric | Steel Structure | Concrete Structure | Improvement Rate |
|---|---|---|---|
| Strength-to-Weight Ratio | 490MPa yield strength | 30MPa compressive | 1630%↑ |
| Construction Speed | 500m²/day | 150m²/day | 233%↑ |
| Seismic Performance | Ductility coefficient μ=6-8 | μ=3-4 | 100%↑ |
| Carbon Footprint | 85% recyclable | 40% recyclable | 112%↓ |
Vision & Mission
We are committed to providing safe, efficient, and environmentally friendly solutions for global customers through continuous technological innovation and exceptional product quality, driving industry progress and collectively creating a better future.
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SHANDONG SHIJIE HEAVY INDUSTRY CO., LTD
Headquartered in the High-Tech Development Zone of Jining, Shandong Province, Shandong Shijie Heavy Industry Co., Ltd. and its sister company, Henan Hengfeng Steel Structure Engineering Co., Ltd., operate as a unified manufacturing group under the same ultimate ownership. Globally, we deliver our end-to-end solutions through our dedicated export brand, SynJect.
Drawing on 17 years of export expertise and a proven track record across more than 60 countries, we provide integrated EPC contracting and heavy fabrication. This global reach is backed by our robust manufacturing footprint: an 80,000 m² facility with an annual capacity exceeding 500,000 tons, RMB 120 million in registered capital, and a skilled workforce of over 600 professionals.
Our core expertise spans civil construction, petrochemical facilities, long-distance pressure pipelines, heavy steel structures, pressure vessels, and skid-mounted refueling stations.
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INDUSTRIAL STEEL BUILDINGS
