31. Case Study II: GEORGE WASHINGTON BRIDGE
The chapter explores the theory of cable mechanics, detailing how the configuration of cables under distributed loads can be understood through their deformation. It presents equations to determine the shape of a cable and its tension properties, illustrating the relationship between sag and horizontal forces. Concepts are grounded in static equilibrium, and the mathematical formulation leads to a parabolic representation of cable shapes under various loading conditions.
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What we have learnt
- The shape of a cable under uniform load can be derived using the equation related to its horizontal force.
- The relationship between sag and horizontal force shows that higher sag corresponds to lower horizontal tension.
- The maximum tension in the cable occurs at the supports and is influenced by both vertical and horizontal components.
Key Concepts
- -- Cable Mechanics
- The study of how cables behave under various loading conditions and the mathematical principles that govern their deformation and tension.
- -- Parabolic Shape of Cables
- Under uniform loading, the shape of a cable can be expressed as a parabolic function, relating the sag to the horizontal force.
- -- Tension Components
- The tension in a cable comprises vertical and horizontal components, which vary based on the cable's configuration and loading.
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