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Last edited 23 Apr 2019
Structural systems for high-rise reinforced concrete buildings
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- Beams eg. tapered beam, spandrel beams etc.
- Slabs eg. ribbed slab, waffle slab etc.
- Columns eg. braced columns, slender columns etc.
- Foundations eg. piles, footings etc.
- Stairs, lift shafts etc.
- Shear walls.
Criteria that determines the type of the structural element to be used include:
- Aesthetics considerations.
- Types, distribution and intensity of loads.
- The total height of the structure
- Earthquake, wind and other environmental loads.
- Materials, equipment and skills availability.
- Ground conditions.
 Core and outrigger structural system
The core and outrigger structural system employs deep beams that are placed along the heavy reinforced concrete shaft that runs up the height of the building. The outrigger beam helps to resist the imposed lateral wind loads that act on the building developing the tension compression forces on the either sides of the building facades.
Refers to a structural system that is made to have either columns, struts or shear walls in the perimeter of the high-rise building. This system can be made into different forms by altering the spacing of outer columns and the degree of openings in the outer shear walls. Tube structural system can be either lattice tube, perforated (hollowed) shell tube, framed tube, braced tube, bundle tube and lattice truss tube.
Also called diagonalised structural system, this type of structural system uses braces to help increase the resistance of the structure against lateral loads. This improves the stiffness of the beams and columns against bending. It allows the use of slender members along the height of the building. Easy fabrication and fixing makes the bracing system more economical and preferred system in the erection of low and mid range high rise structures.
 Rigid frame structural system
Refers to a system established with columns, beams and slabs joined together with rigid joints. Rigid Joints are also referred to fixed joints. These are joints with both moment resistance, shear resistance and axial forces. The rigid frame structural system differs to the tube system in that it has a long span between its columns whereas in the tube system the columns and walls are placed closer to each other.
Refers to a structural system that is formed with a series of reinforced concrete walls placed close to each to support beams and slabs. Wall frame structures are stronger and able to resist greater lateral load.
 Hybrid structural system
A structural system that employs heavily reinforced concrete walls that resist horizontal forces along their length, it also acts as bracing for concrete frames. It acts as a narrow deep cantilever beam carrying both lateral and gravity loads.
 Cross wall structural system
 Spine wall structural system
A type of a structural system in which a principal load bearing wall is erected parallel to the main axis of the structural layout of a building. The beams and columns originate from this central wall. It acts as a central deep cantilever beam.
 Tube in tube structural system
Refers to a structural system that is built using two tube systems; the inner tube and the outer tube. The inner tube is used as services core for lifts and services ducts. The perimeter tube acts as the main structural element.
 Bundled tube structural system
 Related articles on Designing Buildings Wiki
- Braced frame structures.
- Concrete-steel composite structures.
- Concrete frame.
- Concrete vs. steel.
- High rise buildings.
- Lateral loads.
- Limit state design.
- Long span roof.
- Portal frame.
- Shear wall.
- Skeleton frame.
- Steel frame.
- Structural engineer.
- Structural steelwork.
- Tube structural system.
- Types of column.
- Types of frame.
- Types of structural load.
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