What is meant by buttressed core in Burj Khalifa?

The buttressed core of the Burj Khalifa refers to its unique structural design that features a central concrete core surrounded by three inclined buttresses. This design provides stability and strength, allowing the building to withstand high winds and seismic forces. The buttresses radiate from the core, forming a Y-shaped layout that also enhances the building's aesthetic appeal. This innovative approach enables the Burj Khalifa to reach its remarkable height of 828 meters.