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From a strength of materials viewpoint, most if not all materials are stronger (and less likely to fracture) under compression (where, put simplistically, the forces are pushing the particles of the material together) than under tension (where, put simplistically, the forces are pulling the particles of the material apart).
Bridge designers probably try to put as many structural members into compression, however, as far as I know, any design and especially a truss will result in tension at least at some point, and in bending (never just compression).
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∙ 13y ago
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What is meant by compression joint?
Compression joint is a term typically used in construction. It's a bell and spigot joint that becomes watertight when the spigot is pressed into a compression gasket in the bell.
Is it tension or compression that strengthens an arch that supports the load?
compression: the keystone in particular is under rather high compression forces.
How do tornadoes affect bridges?
Tornadoes have caused bridges to collapse on a number of occasions. In some cases pieces of bridges have been carried away by tornadoes.
Why is a warren truss bridge used?
A Warren Truss Bridge is used to cross certain obstacles. The Warren Truss bridge is Constructed with equilateral triangles so, this relieves of Compression and Tension.
What are the disadvantages of concrete bridges?
One disadvantage of a beam bridge is that they can be costly to build. Beam bridges can use cheap materials like concrete, but need to be supported with other materials that are expensive like steel mesh.
Why are bridges made of steel and concrete?
Steel is used for its high tensile strength and the concrete is used for its high compression strength.
What forces affect bridges?
Torsion, compression, and tension
What are the stresses on bridges?
There are a number of stresses inflicted upon bridges. Some of these stresses include compression, tension, as well as bending.
Why do you have truss bridges?
Truss bridges are lighter than beam girder bridges. They take up more height but are strong and carry loadd in tension and compression rather than bending.
What was used before bridges?
Bridges
How do compression load cells work?
Compression load cells work by measuring the force or load applied to them through compression. They contain a strain gauge sensor that detects changes in electrical resistance caused by the slight deformation of the load cell when subjected to pressure. This change in resistance is then converted into an electrical signal that can be calibrated and used to determine the applied load.
What are the five forces that act upon bridges?
1.compression 2.tension 3.torsion 4.shear 5.gravity
What forces act upon arch bridges?
Tension and compression are the two forces that act upon a bridge.
Where are some bridges used why?
some bridges are used to get to the other side of something
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 differentiates suspension bridges from normal bridges?
Suspension bridges are built to make use of tension, whereas most other types of bridges make use of compression to bear their load. Suspension bridges are usually designed with the deck suspended below a series of towers by cables. Other types of bridges are generally either designed with the deck being supported from below by pillars, or made up of an arch.
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.
