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.
Steel Frame for High-rise Buildings
Custom high-rise steel frame structures fit super high-rise offices, senior care apartments & R&D buildings, disaster-resistant & durable for quick delivery in urban core areas.
With over 20 years of practical experience in steel structure engineering, our High-rise Steel Frame Structure (also called Prefabricated High-rise Steel Frame, Long-span Steel Frame System) is a core load-bearing solution for new-generation green buildings. Featuring the structural advantages of “lightweight, high strength, low carbon and environmental protection”, it adapts to diverse high-rise building scenarios, has passed multiple international certifications such as ISO9001 and CE, and is exported to more than 30 countries and regions worldwide.
Core Structural Features
- Lightweight & High Strength + Green Recyclable：Made of Q355B low-alloy high-strength steel, the structural weight is only 1/3 of that of concrete structures, greatly reducing foundation costs; the steel is 100% recyclable, complying with green building standards and helping projects gain LEED certification points.
- Disaster Resistant & Durable + All-climate Adaptation：Through professional mechanical calculation and anti-corrosion treatment, it has a seismic grade of ≥ magnitude 8 and wind resistance of ≤ 130km/h, capable of withstanding complex climates such as coastal salt spray and inland temperature differences; the main structure is designed for a 70-year service life, far exceeding traditional concrete buildings.
- Flexible Assembly + Special-shaped Customization：Breaking the limitations of traditional structures, it supports long-span column-free design (maximum span 35m) and special-shaped frame customization, easily realizing creative architectural shapes such as curved facades and cantilevered observation decks to meet the personalized needs of landmark projects.
- Rapid Construction + Cost Reduction & Efficiency Improvement：Factory prefabricated components have a precision of ±2mm, with on-site bolt connection assembly, eliminating the need for large formwork equipment, shortening the construction period by 50% compared with concrete structures; low construction noise and less dust make it suitable for construction of high-density projects in urban core areas.
Target Application Scenarios
- Super High-rise Landmark Buildings：Suitable for skyscraper office buildings and headquarters buildings above 50 floors, the lightweight structure can reduce foundation load, and the long-span design creates high-ceiling lobbies and open office spaces, highlighting the value of urban skyline landmarks.
- Urban TOD Complexes：For integrated projects of commercial, residential and office buildings above subway stations, the flexible layout of steel structures can adapt to complex traffic line planning, and the rapid construction feature meets the “fast turnover” development needs of TOD projects.
- High-end Senior Care Apartments：Customized small-span frames and sound insulation and shock absorption design adapt to the aging-friendly spatial layout of senior care apartments; the anti-corrosion and durable characteristics can reduce later maintenance costs and improve living comfort and asset preservation rate.
- Industrial Park R&D Buildings：High load-bearing capacity can support laboratory precision equipment and large ventilation systems; prefabricated construction does not affect the existing operation of the park, helping enterprises put into production quickly and shorten the investment return cycle.
We provide a full-chain service from structural design, BIM modeling, component production to on-site installation, with professional engineers stationed for guidance to ensure the efficient implementation of projects. Whether you are building an urban landmark or developing a livelihood project, you can obtain a cost-effective steel structure solution.
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
