Bridge

A structure built to span an obstacle - such as a river.

Abutments

The side support at either end of an arch bridge, necessary to withstand the horizontal forces generated by the arch's shape.

Bascule Bridge

The deck is raised with counterweights like a drawbridge.

Beam Bridge

A simple type of bridge, composed of horizontal beams supported by vertical posts.

Cable-Stayed Bridge

A bridge in which the roadway deck is suspended from cables anchored to one or more towers.

Continuous Span Beam Bridge

Simple bridge made by linking one beam bridge to another; some of the longest bridges in the world are continuous span beam bridges.

Deck

Supported roadway on a bridge. Usually horizontal, and often suspended from cables or resting on an arch.

Drawbridge

The deck can be raised and lowered.

Footers

The stones at the base of a bridge structure that take the loads onto the foundations.

Lift Bridge

The deck is raised vertically like a massive elevator.

Movable Bridge

A bridge in which the deck moves to clear a navigation channel.

Pier

The support of a bridge below the roadway.

Pylon

The tower above a bridge deck that usually carries cable stays.

Suspension Bridge

A bridge in which the roadway deck is suspended from cables that pass over two towers; the cables are anchored in housings at either end of the bridge.

Swing Bridge

The deck that rotates around a centre point.

See also: Ammann, Othmar Herrmann, Arrol, Sir William, Baker, Sir Benjamin, Bascule Bridge, Beam Bridge, Bollman, Wendel, Cable-Stayed Bridge, Cardoso, Edgar, Continuous Span Beam Bridge, Deck, Drawbridge, Footers, Lift Bridge, Movable Bridge, Pylon, Span, Suspended Deck, Suspension Bridge, Swing Bridge, Viaduct.

Previous PageView links to and from this pageNext Page

Subjects: Civil Engineering


Weblinks:
pghbridges.com Bridge basics, a spotters guide to bridge design.