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For a long spans mainly.
The Forth Road Bridge (as the name suggests) is a motor vehicle bridge (as well as a cycle and pedestrian bridge) which spans the Firth of Forth.
A shorter bridge is generally stronger than a longer one because it can better resist the forces acting on it, such as tension and compression. Shorter spans typically require fewer materials and have less flexibility, making them less susceptible to bending or swaying under load. However, the specific design and materials used also play a crucial role in a bridge's strength and stability. Ultimately, the context and intended use of the bridge will determine the optimal span length.
A trestle is a rigid frame used as a support, especially referring to a bridge composed of a number of short spans supported by such frames
Schering bridge
Some say it is the suspension bridge, others say it is the arch bridge.
A purlin is a structural part of a roof which is used to support rafters and carry the roof cladding By supporting the rafters they allow for longer roof spans to be created allowing for wider buildings to be created.
The Segmental arch was used first by Romans for long spans. The Romans figured out that arches need not be semi-circle but could be segmented for longer structures like bridges.
elias and steven
Cranes that are used for building bridges or other large structures are used because they can carry very large weights across very long spans and heights.
The word "bridge" is a generic term which is not generally capitalized. When used as part of a proper name for a specific bridge, it generally is capitalized; for example, the "Golden Gate Bridge" spans the mouth of San Francisco Bay between San Francisco and Marin, California.
A piezo pickup is the type of pickup most commonly used in acoustic-electric instruments. This type of pickup is normally placed in or near the bridge of the instrument thus making it a piezo bridge.