Abstract：
The service hangar in an airport adopted three layers of oblique quadrangular pyramid grid structure. High altitude assembly, ground assembly and lifting were compared with other before construction, and a combined installation method was finally determined, including (1) ground assembly and integral lifting; (2) high altitude assembly; (3) ground partial assembly and high altitude connection; (4) high altitude closing. Key construction techniques were introduced, such as grid frame assembly sequence, assembly method, integral lifting, closing and unloading, etc. It was proved that this technical process is feasible and efficient.
