CCTV Headquarter building is a landmark tower located in Central Beijing Business district. The tower is hosting the operations of China Central Television and has been since its completion in 2012 one of the architectural landmarks of the Chinese capital.

For that project, Dextra was involved in providing contractor China State Construction Engineering Corporation with an anchoring solution for the columns that will ultimately support the building “bridge” complex architecture.

The anchoring of the structure is a challenge on the CCTC building given the building’s height (234 meter) and its distinctive complex shape. Furthermore, the building is actually located in an area of seismic activity, and must therefore been built with to resist additional loads.

Dextra supplied high tensile PT bar Systems in large diameters. The Post-Tensioned system aim tolock themetallic structure located at the foot of the megacolumns, and anchor them into a heavily reinforced mat.

The large PT systems (bars and plates) came with additional corrosion protection accessories (tubes and injection ports), allowing for grout sealing.