truss bridge

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steel truss bridge

Diagram of a single-span truss bridge over water, with red lines showing areas under tension and green lines showing areas under compression in the bridge structure.

Diagram showing three types of truss bridges-Pratt truss, Warren truss, and Petit or Pennsylvania truss-above a labeled illustration of a cantilever bridge with approach span, anchor arm, cantilever arm, and suspended span.

Illustrations of six bridge types show their structural differences: a simple beam bridge, a truss bridge with triangular supports, a cantilever bridge with projecting sections, an arch bridge, a suspension bridge with cables hanging between towers, and a cable-stayed bridge with cables radiating from towers.

truss bridge: Media

engineering

Images

steel truss bridge

steel truss bridge

Moyie River Canyon Bridge (1964), a steel truss bridge in northern Idaho.

AdstockRF

truss

truss

Trusses supporting Auckland Harbour Bridge, New Zealand.

Hossen27

Diagram of a single-span truss bridge over water, with red lines showing areas under tension and green lines showing areas under compression in the bridge structure.

Single-span truss bridge

A diagram of a single-span truss bridge, with forces of tension represented by red...

Encyclopædia Britannica, Inc.

covered bridge

covered bridge

The Neet Covered Bridge in Parke county, Indiana. The triangular trusses are visible...

© David Davis/Shutterstock.com

Diagram showing three types of truss bridges-Pratt truss, Warren truss, and Petit or Pennsylvania truss-above a labeled illustration of a cantilever bridge with approach span, anchor arm, cantilever arm, and suspended span.

truss and cantilever bridges

Three common types of truss bridges and an example of a cantilever bridge.

Encyclopædia Britannica, Inc.

Astoria Bridge

Astoria Bridge

Astoria Bridge over the Columbia River, Oregon.

COMSTOCK, INC./Michael Thompson

Illustrations of six bridge types show their structural differences: a simple beam bridge, a truss bridge with triangular supports, a cantilever bridge with projecting sections, an arch bridge, a suspension bridge with cables hanging between towers, and a cable-stayed bridge with cables radiating from towers.

Bridge forms

Six basic bridge forms.

Encyclopædia Britannica, Inc.

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