Main structure of T3N Tower on Section B of Chongqing Raffle project (the tower on the right in the front row) finished.

Main structure of T3N Tower of Chongqing Raffles project officially completed.

CHONGQING (CQNEWS) -- With the last ton of concrete sent to the top level of the tower of T3N on Section B of Chongqing Raffles project, the main structure is completed. The building’s height reaches 350 meters taking Linjiang Branch Road as a reference.

73 Levels – Huge steel columns installed to 4 corners of the tower to improve stability

Located at Chaotianmen Wharf, the project consists of 8 towers which has a shape of sailing ship and offers high-end living space, shopping malls, office departments, service apartments and Five-star hotels. The T3N tower of which the main structure was just completed has an altitude of 350 meters and 73 levels above ground.

How do such a tall building take precautions against earthquakes? To improve the stability, the T3N tower has a structure of steel-frame and core tube in which huge steel columns of enormous heteromorphic sections and of size of 4.2m x 4.2m are installed to each of 4 corners of the outer frame, each of the single steel columns weighs 35 tons. At the same time, a “steel ring”, technically known as Ring Beam-Combined Arm Truss System is added every 10 levels of the 73-level skyscraper, and for each of the arm truss a “fuse-like” shear energy consuming object made of carbon steel and thus provides great elasticity is added to protect the building even in the presence of earthquakes or strong winds.

Looking from afar at the project of Chongqing Raffles (File picture)

Maximum angle of slope 13°, innovative climbing frame curve climbing construction

The 8 towers of Chongqing Raffles project all resemble that of a curved sailing ship. The maximum angle of slope is 13 degrees, a significant challenge for the setup of climbing frames to high levels. In respect of such difficulties, the project team developed a patented technique of retractable support truss to make it possible for the climbing frame to reach the top in a creative manner. (Translated by Yang Lifu, Fathom Language Limited)