Since the winning of the scheme, the design has been further developed and wind tunnel tests, fire- and load tests have been completed. Performance-based approaches have been adopted to achieve breakthrough on the local regulations on planning, fire escape and structural design issues. The groundbreaking ceremony took place in November 2005 after which the foundation and piling, (24 x 4m diameter piles) have been constructed.
About half of the steel-structure has now been assembled above ground. Currently the core of the Guangzhou TV & Sightseeing tower has reached 350m and the steel structure 270m, which is about 40 meters below the ultimate "waist" of the building.
The tower is due to be completed at the end of 2009, in order to be fully operational for the 2010 Asian Games.
for more info go to the canton tower information website: gztvtower.info