Changsha Huanghua International Airport Terminal 3

The curtain wall glazing of Terminal 3 at Changsha Huanghua International Airport extends over a continuous length exceeding 8,000 meters. Walking along the elevated approach road to the third floor of Terminal 3, the south facade reveals a visually striking glass curtain wall, characterized by its immense scale and distinctive inclined design.

The total curtain wall construction area exceeds 400,000 square meters — equivalent to approximately 56 standard football fields. If all glass panels were arranged end to end, their total length would surpass 8,000 meters. This represents the largest single-unit curtain wall project in Central China, utilizing a 20-meter large-span cable-supported point-fixed glass curtain wall system, with each panel measuring 3.0m × 1.5m.

The inclined design of the curtain wall serves a functional purpose. Given Changsha's hot summers and intense solar radiation, the south facade is tilted outward at an angle of 12.5° to reduce direct sunlight penetration into the terminal and limit ultraviolet exposure.

In addition, the south facade incorporates triple-silver laminated insulated glass filled with argon gas, achieving a "high light transmission with low heat gain" performance. This design maximizes the use of natural daylight to maintain a bright indoor environment while effectively reducing internal temperatures and lowering energy consumption for artificial lighting and air conditioning — balancing sustainability with practical performance.

The non-standard inclined design significantly increases installation complexity. Each glass panel requires coordinated operation by four technicians, supported by two aerial work platforms and one crane. Beyond installation logistics, the project also faces strict precision requirements. Curtain wall assembly demands near-zero tolerance alignment between panels, while intense sunlight can affect the calibration accuracy of total stations. To address this challenge, continuous manual monitoring is implemented, placing exceptionally high demands on the expertise of surveying personnel.

Through meticulous control of every installation detail, the project ultimately achieved China's first cable-stayed inclined curtain wall system with a single lock exceeding 30 meters in height.