Angling for Structural Efficiency and Market Flexibility
At Highpoint, a 45-story rental tower, a new structural typology for high-rise living in London was created. Its repetitive, symmetrical nature provided the scope to develop a bespoke system and a high-speed construction method. The resulting framing system works holistically, as all elements contribute to the lateral stability system as well as provide vertical support. An arrangement of four internal concrete blade walls provides buttressing to the central core. Every floor slab acts as an outrigger, engaging eight perimeter blade walls, which are also articulated within the façade, providing an aesthetic true to the structural behavior of the tower.
The structural framing of the floor plates pushes the majority of vertical structure to the perimeter to maximize the outrigger effect. Between the internal core and perimeter, further internal vertical structure is limited to just four elements per floor which lock the two systems together. The elements are aligned with the 45-degree partition lines, and thus promote the flexibility of the floor plates. When the client and architect changed in 2011 with the market and tenure, the structural logic remained robust.