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bridges - Coggle Diagram
bridges
cantilever
A cantilever bridge is a specific type of bridge. It is called a cantilever bridge because it is built using cantilevers. A cantilever is a structure that is only anchored at one of its ends. Its other end projects horizontally into space, and it is this end that helps support the bridge.
suspension
In a suspension bridge, the main cables suspend the deck. Most of the bridge's weight is suspended from the cables. The cables are held up only by the towers, which means that the towers support a tremendous weight. The steel cables are both strong and flexible.
cable stayed
A cable-stayed bridge has one or more towers, from which cables support the bridge deck. A distinctive feature are the cables or stays, which run directly from the tower to the deck, normally forming a fan-like pattern or a series of parallel lines.
beam
In its most basic form, a beam bridge consists of a horizontal beam that is supported at each end by piers. The weight of the beam pushes straight down on the piers. The beam itself must be strong so that it doesn't bend under its own weight and the added weight of crossing traffic.
arch
An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side.
tied arch
A tied-arch bridge is a type of arch bridge where the horizontal forces of the arch, caused by tension at the arch ends to a foundation, are balanced by an equal tension of its gravity and any element of the total deck structure that provides great arch support.
truss
A truss is a structure composed of individual members that act in tension or compression to work together as a single unit. On a truss bridge, the tension members are subject to forces that pull outward at their ends. Even on a wooden truss bridge, these members are often pieces of metal such as bars or rods. Compressive forces push or compress together and are heavier. The individual members of a truss are arranged in a triangular pattern.
