The main part of the roof adopts steel truss structure

The panel part adopts aluminum-zinc profiled steel sheet

The structure level is complex, involving 9 structural levels

BIM technology runs through the whole process of

roof construction

which strictly control the structural accuracy

and ensure the perfect presentation of lotus roof

There are many extreme weather in Tibet

In order to meet the test of heavy wind and snow,

The wind-resistant clip added to the roof of the terminal building can resist the level-12 gale

C50 self-compacting concrete was poured

 in 12 steel columns supporting the lotus roof

In the process, the project changed the traditional concrete pouring technology and adopted

special pumping jacking technology

to avoid the quality defects of unconsolidated concrete in steel tube columns under plateau environment

The T3 terminal of Lhasa Gongga International Airport

has experienced three winters of construction

The lowest temperature in winter in Tibet can reach -20℃

 and the temperature difference between day and night

is 18 ~ 20℃

In order to ensure the construction quality,

the project adopts the greenhouse method and covers the concrete with rubber-plastic thermal insulation cotton

and use a heater to heat the concrete members

to ensure that the concrete strength reaches

the curing temperature before the frost-resistant

critical strength.

10,000 tons of steel cast "reinforced iron bones"

The T3 terminal building of

Lhasa Gongga International Airport

has a total construction area of about 88,000 square meters,

of which the steel structure construction area

is 56,000 square meters

It uses 10,000 tons of steel members

which exceeds the weight of an Eiffel Tower

The project also set up 24 windproof sheds on site

 which adopted technical measures such as preheating before welding and heat preservation after welding

to ensure welding quality in low temperature environment

Only in the roof construction part,

more than 200 workers

completed the construction of 3,708

high-altitude welded joints in 4 months

During the period, 200 tons of welding materials were used,

and the length of welding wire

could circle the equator of the earth once

After the reconstruction and expansion project of Lhasa Gongga Airport is put into operation, it will achieve the goal of 9 million passengers

 and 80 thousand tons of cargo and mail throughput in 2025

CCEED assisted for the construction in Tibet

and narrowed the air distance with the world