Construction Award of Excellence: Tianjin CTF Finance Centre, Tianjin

Thomas Kinzl
Associate Director
Skidmore, Owings & Merrill LLP, Chicago

Kevin Ma To
Associate Project Director
New World China Land Limited, Hong Kong

Record-Breaking Foundation Pour & Climbing Formwork

To construct a supertall building in a sea-side region with chilly high winds, a “chute” method was used to pour 31,000 cubic meters of concrete for the foundation slab in a record-breaking 38 hours. The vertical construction logistics elevator had a 12.7-meter cantilever span to accommodate the building setbacks at higher floors. As the climbing formwork moved up, a high-capacity tower crane was able to lift extra-large, heavy building components and equipment, which allowed for increased pre-fabrication of components, and greatly reduced set-up time. With the self-developed, adjustable climbing formwork, the construction time of the tower’s core was reduced to less than two days per floor. Concrete pumping technology, using 125-millimeter inner-diameter pipes to pump C130 concrete, helped build the tower’s significant height. All the architectural, façade, structural, and building services models were collectively uploaded to a self-developed existing building information models (eBIM) management platform for detailed coordination, in order to eliminate clashes and collisions between architectural, structural, and various other services. The complicated steel structure features multiple curved members, which cross each other as they change configuration from floor to floor.

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