Jomo Kenyatta Aircraft Maintenance Hangar
An 85 m clear-span box-truss roof housing twin Boeing 787 wide-bodies for heavy maintenance, with motorised sliding door leaves and overhead tele-platform cranes.
Project data
- Client
- East African Aviation Services
- Location
- Nairobi, Kenya
- Year completed
- 2024
- Tonnage
- 1 650 t
- Clear span
- 85 m box truss
- Steel grade
- S355J2+N carbon steel
- Fire rating
- Intumescent, 2-hour rating
- Door leaves
- 6 motorised, 14 m high
- Programme
- 11 months
An 85 m span with a deflection limit tight enough to keep six 14 m door leaves running true, on a live airside plot with a hard 4-hour nightly crane window imposed by the aviation authority.
The roof was designed as a triangulated box truss with a pre-camber calculated from the finite-element deflection model, so the door head rail sits level under permanent load. Each truss was fabricated in three shop-welded segments with bolted splices, sized so a single night-shift window could land and secure one segment.
Delivered without a single airside incident or overrun of the nightly window. Measured door-head deflection came in under the 1/500 serviceability limit across the full span.
Engineering highlights
- ▹85 m triangulated box-truss span
- ▹Pre-cambered from the FEA deflection model
- ▹Segmented for 4-hour airside night-shift lifts
- ▹2-hour intumescent fire protection to aviation spec
Related infrastructure
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