Core, outrigger and tube systems resist lateral loads.
Systems for lateral resistance: shear-wall core, outrigger and belt truss, framed tube, bundled tube, diagrid, mega-columns. Drift and acceleration (comfort) govern rather than strength; foundations and vertical transportation are major considerations.
Burj Khalifa uses a buttressed core with a Y-shaped plan.
Tall buildings need systems that resist lateral loads efficiently, and these systems shape the layout and cost of the whole tower.
Core, outrigger and tube systems resist lateral loads.
Tall buildings need systems that resist lateral loads efficiently, and these systems shape the layout and cost of the whole tower.
A central shaft of walls, often housing lifts and stairs, which carries lateral load and provides stiffness.
It links the core to perimeter columns through a stiff truss, so the perimeter columns share the overturning resistance.
Typical applications include designing a core wall for a 40-storey office tower, adding outrigger trusses to link a core with perimeter columns and using a tube structure with closely spaced columns for a skyscraper.
Study "Base isolation and dampers" first (topic 64 of 112 in Civil & Structural). It covers the groundwork this topic builds on.
Wind-induced acceleration limits. Differential column shortening. Fire and egress.
Burj Khalifa uses a buttressed core with a Y-shaped plan.
The next topic is "Bridge engineering", which builds directly on this one.
It is classed as Intermediate in Civil & Structural (topic 65 of 112). It is an intermediate topic. Work through the beginner topics in Civil & Structural first.
Want to practise? Open the interactive course for quick checks, quizzes, simulations and progress tracking.