Guangdong Building Aerodynamics Wind Tunnel CGB-l built in 1986 is the first large wind tunnel specially designed for architectural aerodynamics in china, supported by State Department of Construction and local government. As an adiabatic atmospheric boundary layer wind tunnel, it is dual test section in tandem and close circuit type. The lager test section is close type of 3m (W) ×2m (H) × 10m (L) and maximum wind speed 18m/s, and small one is either close or open type available of 1.2m (W) × 1.8m (H) × 10m (L) and maximum wind speed 46m/s. Using “spires, roughness elements and barries” simulation methods. the modeled atmospheric boundary layers over various terrains can be generated in either test section at a scale appropriate to the model. On-line digital data acquisition, processing and display have been realized with personal computer-base system.
Testing capacities provided in CGB-1 include pressure and balance measurements, pedestrian-level wind environment investigations, and wind-induced dynamic response with aeroelastic models. Newly-equiped High-Frequency Base Balance has been successfully demonstrated in CAARC standard model testing, resulting in well-agreeded results with other labs in the world.
The vital activities on wind engineering research in this facility since 1986 when the wind tunnel was put into operation, particularly its important role in wind-resistance structure design for many new high rise buildings, long-span cable bridges and shell roof structure, which recently increasingly appeared in Guangzhou, Shenzhen and Zhuhai Economic Special Zone and other South-China modern cities which already became the forward economical developing regions located in typhoon zone. The testing capacity of this wind tunnel is demonstrated here by several typical examples among over 40 major consultant contracts, which have been completed up to date, e.g. Guangdong International Building (63 stories), Shenzhen Xianchen Building (218ni high), Zhuhai Jinniu Plaza (193. 8m high) and so on. It enjoys good reputation through the research projects from the clients.
The wind tunnel CGB-1 is well-equipped, has advanced-trained engineers and good engineering experiences through the testings practice for many years. We sincerely welcome the colleagues both at home and abroad to joint our co-operative research programme and carry out the wind engineering activities there in order to make great contributions to the development of architectural aerodynamics in this country. The wind tunnel lab is ready to serve any customes including in Asia-Pacific area.
