Thiết kế công trình thép vượt nhịp lớn
- Nhà thi đấu, sân vận động chìa ra 30m
- Công trình khu chờ máy bay, bãi đậu xe , nhà xưởng vượt nhịp 200m
Long Span Structures
- Integrated Architecture and Engineering
- Undisciplined Geometry
- Constructability: What does it look like half built?
- Unrealistic specifications: tolerance, fit
- Tender documentation: “Normal” standards are inadequate
- Underdeveloped Contractor’s alternative design – continuity of knowledge
- Lack of specialist knowledge
Fabrication
- Connections often govern (number and complexity)
- With modern technology, geometry is not necessarily a major concern
- Visibility/ aesthetics
- Open sections or closed sections
- Durability and ductility of details
- Whole life implications for painting
- Offsite / onsite welding
- Maximize modularity and repetition
Erection
- Stability of the roof in its partially erected state
- Access for and availability of cranes and other lift techniques
- Size of elements to be lifted
- Stability of elements during lift
- Tolerances
- Connections to superstructure
- Locked in stresses
- Deflection control (pre-cambering?)
