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yes they have truss for getting more strenth to the bridge........

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Q: Why do suspension bridges have a truss system beneath them?
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Related questions

What common truss types used in bridges?

The type of bridges are: -truss bridge -arch bridge (truss arch bridge) -suspension bridge (suspension truss bridge) -cantilever bridge


What is the weakness of a suspension bridge?

The strengths of Truss bridges are that Truss bridges can support and resist lateral loads. Another is that unlike the Arch and Beam bridges, the Truss bridge prevents twisting and swaying during earthquakes and high winds. Truss bridges also resist the forces of compression and tension.


What are the strengths and weaknesses of a suspension beam arch truss cable and wood post bridges?

boody


What innovation or invention made suspension bridges possible?

Suspension bridges are one of the oldest engineering forms, dating back to the 4th century. Modern suspension bridges were made possible by the web truss, invented by John Augustus Roebling. The web truss made a very sturdy, rigid structure that could withstand storms, wind forces, and heavy loads.


What are the four major bridges called?

i think it suspension bridge cable arch bridge truss bridge


List and describe the major types of bridges?

The beam bridge The truss bridge The arch bridge The suspension bridge


What is the suspension bridge made out of?

Truss Bridges=Trusses have been used extensively in bridges since the early 19th Century. Early truss bridges were made of wood.==in additon the classic American covered bridges are all trusses, though the wooden truss members are covered by walls and a roof, for protection from the elements. Later truss bridges were made of cast iron and wrought iron. Most modern trusses are made of structural steel.=


What are facts about truss bridges?

truss bridges are one of the most spaceships in the undergrounds flying


What are 3 different truss bridges in Connecticut?

three different truss bridges in connecticut


What kind of bridge is the golden gate brdge?

Suspension, truss arch & truss causeways


What kind of shapes are used in Truss bridges?

The geometric shape used in truss bridges is the triangle.


How long are truss bridges?

the longest span of a truss bridge is 2.1 miles long