Doka is supplying its SKE climbing formwork for the core and columns as well as its Xclimb 60 protection screen.
Lotte Construction awarded Doka the formwork contract, citing reasons including that the system’s ability to adapt to the many changes in the cross-section. In front elevation view, the core breaks down into three sections, which are roughly equal in height but which are completely different geometrically.
From August, the Doka climbing formwork system SKE100 will be working on cast-in-place concrete core as well, raising some 2500m² of Top 50 large-area formwork and three concrete placing booms with the aid of 117 automatic SKE100 climbers.
The self-climbing Xclimb 60 Doka protection screen will be put into use to enable slab-forming work in the top four storeys of the rising core to take place safely and sheltered from the weather. This gapless enclosure will have to adapt to the decreasing circumference automatically, without needing any time-consuming modifications. This will be achieved by mounting the climbing profiles at an acute angle to one another so that the individual elements of the protection screen can move into one another on rollers during the climbing operation.
Cast-in-place concrete “mega-columns” run up the outsides of the structure. Between the first and last casting steps, their cross-section tapers from 3.5m to 2m. The ‘SKE50 plus’ self-climbing solution will be used in conjunction with Top 50 large-area formwork elements. To speed construction, each column will have its own crane for lifting in the rebar. These cranes are ‘climbed’ together with the formwork solution.
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