YOUR STEEL STRUCTURE ENGINEERING EXPERT
We are an international company specializing in steel structure construction and export, with over 15 years of experience in steel structure engineering. We have provided high-quality steel structure building solutions to more than 30 countries worldwide. Our company holds international quality system certifications and possesses integrated service capabilities encompassing design, manufacturing, construction, and export.
Portal Steel Structure & Prefab High Rise Building
Portal steel structures combined with prefabricated high-rise construction represent a building system that integrates portal frame structures with prefabricated assembly technology. Component production and on-site construction work in tandem to form a comprehensive building implementation process. This combination of portal steel structures and prefabricated high-rise construction systems offers the dual advantages of large-span spaces and efficient construction. Multi-story steel structure (below 7 floors) with welded H-section frames. Steel grade: Q355B / ASTM A572 Gr.50. Composite floor decks. Seismic resistant up to Magnitude 8. Fire protection coated. 50+ year design life.

Portal Steel Structures for High-Rise Prefabricated Buildings
Core Features & Advantages
High-rise steel-frame buildings with a portal frame structure employ a modular and prefabricated design approach. The main structure is composed of steel sections, ensuring overall stability and reliable load-bearing capacity. The structure features an open and airy interior with a high degree of design flexibility, while also offering excellent scalability and potential for future modifications, making it suitable for a wide range of modern high-rise building projects.
♦ 75% lighter than concrete;
♦ 40% faster build;
♦ Magnitude 8 seismic resistant;
♦ 12m+ clear span;
♦ 100% recyclable;
♦ ±2mm precision;
♦ Easy to modify.
Applications
Steel-framed high-rise buildings with a portal frame structure can be custom-designed to meet various usage requirements. They are suitable for single-use buildings such as commercial office buildings, residential apartments, hotels, hospitals, and schools, as well as for mixed-use complexes that integrate multiple functions. With its unique architecture and spatial design, it has become a new window showcasing the city’s cultural heritage and the spirit of the times, drawing people to explore and reflect.
♦ Commercial offices;
♦ Residential apartments;
♦ Hotels;
♦ Hospitals;
♦ Schools;
♦ Mixed-use complexes.
Product Parameter
| Hot Galvanizing | Steel Beams/Column | Paint Spraying | Steel Beams/Column |
| 30m Length | Steel House | Welding H Steel | Welding H Steel |
| 200m2 | Steel Warehouse | 50m Length | Steel Warehouse |
| 50mm PU Panel | Steel Warehouse | 500m2 | Steel Warehouse |
| Package | Load Into 20gp/40gp/Hq/Ot Containers | Steel | Steel Structure Air Tower |
| Material | Steel Structure | Multistory | Multistory Steel Structure Warehouse |
| Customized | Customized | Certification | ISO, CE |
| Transport Package | Seaworthy Package in 40hc/40ot | Warranty | 1 Year |
| Steel Structure Warehouse Workshop Hanger Shed Building Storage Framework Hall Materials Construction | |
| ITEMS | SPECIFICATION |
| Main Steel: | Q355, Q235, Q355B, Q235B, etc. |
| Anti-rust protection | Hot-dip galvanized or anti-rust painting |
| Purlin and girts | Cold-rolled C or Z steel, Q355 or Q235 |
| Column & Beam: | Welded or Hot rolled H-section |
| Connection method of steel structure: | Welding connection or bolt connection |
| Wall & Roof: | Sandwich panel or steel sheet. |
| Door: | Rolled up door or Sliding door |
| Window: | Plastic steel or Aluminum alloy window |
| Surface: | Hot-dip galvanized or painted |
| Crane: | 5MT, 10MT, 15MT, and more |
| Drawings & Quotation Information: | |
| 1) Customized design is welcomed. | |
| 2) Could you tell me your steel structure project? | |
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.
CONTACT
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SHANDONG SHIJIE HEAVY INDUSTRY CO., LTD
Shandong Shijie Heavy Industry Co., Ltd. is located in the High-Tech Development Zone of Jining City, Shandong Province, the hometown of Confucius and Mencius. Covering an area of more than 120 mu (about 80,000 square meters)and with a registered capital of 120 million yuan, the company currently employs over 600 people. It is an integrated service enterprise engaged in general contracting of projects such as construction, municipal engineering, petrochemical engineering, pressure pipelines, and long-distance transmission pipelines. Additionally, it manufactures products including steel structures (space grids,trusses), pressure vessels, SF/FF double-layer oil tanks, skid-mounted refueling devices, and various metal containers.Shandong Shijie has obtained over 80 qualifications and honors, including certifications for the ISO9001 quality management system, ISO14001 environmental management system, ISO45001 occupational health and safety management system, as well as the National Industrial Product Production License.
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