This contract was finished on the scheduled date 30th June 1998 at a total cost of £10 million, on behalf of Hong Kong Aircraft Engineering Co. Ltd. The HAECO Base Maintenance Hangar is a 3 bay hangar, capable of accommodating 3 no. wide body 747 jumbo jets fully under cover.
The hangar was designed by Meinhardt C & S Ltd. and consists of a four storey concrete structure housing offices and workshops, with a 70m cantilever roof, approximately 210m wide, covering the open hangar area. The roof is supported by pinned connections to concrete shear walls and 6 no. box section steel masts and stays.
 HAECO Hangar Roof During Construction |
The Main Contractor for the project was Dragages et Travaux Publics
(HK) Ltd Cleveland Bridge were responsible for the connection design
and the supply, fabrication and erection of the 3,400t roof and gables.
This included door header steel and crane and gantry runway support
beams.
Cleveland were also subsequently awarded the assembly and erection of the hangar doors. In order to accommodate the tight tolerances required at the runway beams and door header steel, Cleveland engineered an erection scheme that allowed the assembly of the roof to be carried out at ground level. The roof was then strand jacked into position in two separate lifts, each of approximately 1000t and connected to the permanent pins and stays. Each strand jacking operation involved lifting with nine hydraulically linked 180t jacks. |