North Horizontal Passage Phase II Project
Keywords：North Horizontal Passage Phase II Project
Product Details
The spiral staircase of Phase II of the North Horizontal Passage is an atypical steel‑structure project that forms part of Shanghai’s core municipal expressway network. Integrated into the urban traffic upgrade and expansion system of the North Horizontal Passage, it primarily supports emergency evacuation, routine maintenance and inspection, and pedestrian connectivity in the tunnel and ramp areas, serving as a key municipal infrastructure facility that balances functionality with aesthetic appeal. Unlike conventional civil‑use staircases, this structure is designed to withstand year‑round outdoor exposure and operate within severely constrained construction spaces, while rigorously complying with fire‑safety evacuation standards. It stands as a quintessential demonstration project for the meticulous execution of complex, non‑standard steel‑structure works in urban settings.
This project employs a central‑tube cantilevered rotating steel structure system, featuring an integrated design with no ground‑borne support columns. The central steel tube serves as the primary load‑bearing core, while the treads and handrail framework are arranged in a helical, ring‑shaped cantilevered configuration, resulting in a compact structure with high space efficiency. This load‑carrying system is scientifically balanced, effectively distributing live loads from occupants, external wind pressures, and thermal‑induced deformation stresses, thereby mitigating common issues associated with irregular geometries, such as stress concentrations and dynamic sway. The fluid, spiraling form adapts seamlessly to constrained installation spaces, harmonizing with the aesthetic of modern municipal architecture and achieving a high degree of integration between structural integrity and visual appeal.
Customized Steel Solutions
For the needs of different industries, the company provides personalized design and production services:
- **Precision processing capability**: Equipped with CNC operation, automated welding (e.g., two bonded welding technology) and high-precision cutting equipment to support customized processing of complex components.
- **Quality Assurance System**: from raw material procurement to finished products leaving the factory, we implement ISO quality management standards throughout the process, and ensure mechanical properties and dimensional accuracy through third-party testing.
- **Rapid Response Service**: With a professional technical team (covering mechanical design, electrical automation and other fields), we can provide customers with technical advice, installation guidance and after-sales maintenance support.
Our Advantages
Extensive Experience
Since its establishment, the Company has been responsible for manufacturing metal structural parts, as well as the installation and maintenance of lifting machinery and electrical equipment for numerous large enterprises. Supporting facilities for manufacturing mining equipment and agricultural machinery for a major international company.
Rich Experience
Quality Assurance
Our eternal quality policy is "quality comes first" and "customer satisfaction is our pride"
Quality Assurance
Strong Technology
The Company has state-of-the-art production equipment and skilled technicians.
Strong Technology
Intimate Service
We have professional after-sales service personnel available to provide 24/7 support, ensuring that any challenging issues you encounter are promptly addressed
Intimate Service
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Address: No. 8 Yangpu Road, Haian Economic and Technological Development Zone
Email: th@zgjsthzg.com
Tel: 86-513-88744899
Postcode: 226601
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