The structure of a Ferris wheel mainly includes the following parts:
Spokes:
Definition: Spokes are the main supporting structure of a Ferris wheel, usually made of steel.
Shape and arrangement: Spokes are arranged radially, connecting the axle and the cabin.
Function: Responsible for supporting the cabin and transmitting force.
Axle:
Definition: The axle is the central part of the Ferris wheel.
Structure and design: The axle can be single-axis or double-axis, depending on the size and structural design of the Ferris wheel.
Function: Responsible for supporting the entire spoke and cabin.
Cockpit:
Definition: The cabin is the part for passengers to ride.
Shape and capacity: Usually round or oval, can accommodate multiple people.
Connection method: The cabin can be hung on the spokes and rotate with the wheel.
Entertainment cabin:
Definition: The entertainment cabin is the external structure of the cabin.
Features: Usually closed, which can protect passengers from the outside environment.
Structural type:
Rigid structure: The original Ferris wheel was made of rigid trusses, but its deadweight was large, which limited the possibility of further expansion in size.
Flexible and rigid-flexible hybrid structures: More common in large-diameter Ferris wheels, with lighter deadweight, slender cables, and more popular architectural effects among architects.
Drive and braking system:
Drive system: The rim (i.e., outer ring) is driven to rotate by friction.
Braking system: A braking system is provided to ensure that the Ferris wheel can be stopped in time in case of an emergency.
Supporting structure:
The supporting system of the Ferris wheel structure used steel trusses in the early days, but now mostly uses A-shaped supports to form a force-bearing system with greater rigidity. Cables are set on the outside of the two A-shaped support frames to ensure the stability of the structure.
Load bearing:
The loads borne by the Ferris wheel structure mainly include cable prestressing, deadweight load, braking force, wind load, and snow load.
The structural design of the Ferris wheel should not only take into account its beauty and entertainment, but also ensure its safety and stability to adapt to various climatic conditions and the needs of tourists.