Key Structural Overview
📍 Location: Chongqing, China
🏗 Structure Type: Dual-level steel truss pedestrian bridge
🔗 Function: Connects 3rd & 4th floors of Medical Complex and Science-Education Complex
Engineering Highlights
Innovative Disconnection: Seismic isolation via full structural separation from main buildings
✔ Precision Fabrication: Laser-cut box sections with ±1.5mm tolerance
✔ Wind Engineering: CFD-optimized truss profile for Chongqing’s high humidity & gusty conditions
“This walkway demonstrates how medical infrastructure can blend seismic resilience with architectural lightness.”
— Wenchen Lead Structural Engineer
Technical Specifications
1. Structural System
Design Concept: Freestanding steel truss system (disconnected from main buildings)
Spans: Total length 78.4m | Height 19.65m | Floor area 182.5m²
Levels: Two stacked trusses (each 4.5m clear height)
Lateral Resistance: Steel-reinforced concrete columns + truss action (designed as sway frame)
2. Material & Components
Primary Steel: Q355B grade
Columns: Steel-reinforced concrete with welded H-section cores
Trusses: Box-welded sections (vertical load-bearing)
Floor Beams: Box-welded sections, rigidly connected to truss chords
3. Safety & Compliance
Design Life: 50 years (structure & seismic)
Seismic Rating:
Seismic class: Standard fortification
Intensity: 6° (PGA 0.05g)
Group: 1st
Fire Protection:
Safety class: Level 1 (primary members)
Fire rating: Level 2 (1.5h resistance for columns/trusses/beams)
4. Connection Technology
High-Strength Bolts:
Type: Shear-type (GB/T 3632-2008)
Grade: 10.9 (per JGJ82-2011)
Friction surface: Sandblasted (μ=0.5)
Why Choose Wenchen for Such Projects?
Hospital Experience: 12+ healthcare steel structure projects
Certifications: GB/ISO for medical facility construction
BIM Integration: Clash detection with MEP systems
Request the full technical dossier → Support@cqsses.com
