Bridge Terms & Definitions
Terms in this set (19)
A bridge having a curved structure. It is one of the oldest types of bridges. Most early arch bridges were made from stone. The spans range up to about 1700 ft.
A hinged bridge that acts like a see-saw. Sections can be lifted using weights as a counterbalance. The moveable section allows for clearance for boats and large ships to pass. (a drawbridge or vertical lift bridge)
The simplest type of bridge. It is made from a rigid, straight structure resting on supports at either end. Spans up to about 1000 ft.
A modern design of bridge in which the deck is supported by cables that are directly attached to towers. Make an A shape. (Spans up to about 3000 ft)
Similar to the beam bridge, this design gets its support from counterbalanced beams meeting in the middle of the bridge rather than from supports at either end. The two arm of the beam are called cantilevers. Span can be as long as 1800 ft.
A type of bridge in which the deck hangs from wires to attached to thick cables. The cable themselves pass over towers and are securely anchored in concrete anchorages. These bridges can be used to cross deep water channels and gorges where construction of supporting piers can be difficult. The tows can be placed apart eliminating the for multiple toward piers can be difficult. The towers can be placed far apart eliminating the need for multiple towers and piers. The longest in the world is Japan's Akashi-Kaikyo Bridge that has a main span of 6,532 ft. (between the towers)
the weight of the bridge's structure
the weight of the traffic using the bridge
a force that tends to lengthen or stretch part of a structure
a force that tends to shorten, push or squeeze a structure
the outermost end supports on a bridge (usually rock or concrete) supports the load from the deck.
a rigid, horizontal component of a bridge
a structural element formed from steel wire bound in strands; the suspending element in a bridge
the final wedge-shaped placed in the center of an arch that causes the other pieces to remain
a vertical support for the middle spans of a bridge - a column, tower, or pillar.
the section of a bridge between two piers
a supporting cable for the deck; it is hung vertically from the main cable of the suspension bride (also known as hanger)
a framework of beams, some in tension and some in compression, comprising triangles and other stable shapes.
Square, Triangle, Rectangle, Semi-Circle
The common shapes in engineering