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What is a beam bridge?
A beam or "girder" bridge is the simplest and most inexpensive kind of bridge. According to Craig Finley of Finley/McNary Engineering, "they're basically the vanillas of the bridge world." In its most basic form, a beam bridge consists of a horizontal beam that is supported at each end by piers. The weight of the beam pushes straight down on the piers. The beam itself must be strong so that it doesn't bend under its own weight and the added weight of crossing traffic. When a load pushes down on the beam, the beam's top edge is pushed together (compression) while the bottom edge is stretched (tension). The farther apart its supports, the weaker a beam bridge gets. As a result, beam bridges rarely span more than 250 feet. This doesn't mean beam bridges aren't used to cross great distances-it only means that they must be daisy-chained together, creating what's known in the bridge world as a "continuous span."
Is a triangle a good shape to make a bridge with?
yes because the pressure or weight on the bridge pushes down and the weight goes down the two sides. the triangle is best when it is in the downward "V" shape.
What is the main difference between an arch bridge and a suspension bridge?
Arch bridges are in the shape of an upside down "U" with mainly steel beans, while supension bridges have one or two Major verticle beams with strong wire connecting to the bridge.
How do beam bridges support weight or load on them?
Instead of pushing straight down, the load of an arch bridge is carried outward along the curve of the arch to the supports at each end. The weight is transferred to the supports at either end.
What happens to a ball thrown straight down from a bridge would have acceleration of?
After being released, a ball thrown straight down from a bridge would have an acceleration of
What happens when the bicycle rider pushes down on the pedal?
If the rider pushes down on the forward side, the top run of the chain goes tight, the rear Wheel begins to turn and the bike starts to move forward.
Disadvanteges of beam bridges?
Well, if there is not enough support, the bridge could wear down, therefore unsafe. It could fall down instantly or when people drive on it.
Why are arch bridges better than than beam bridges?
Arch bridges are better because they transfer the weight down the archs and into the grownd unlike the beam bridge where it transfers it's weight through the beams wich break more often than arch bridges. Arch bridges are better because they transfer the weight down the archs and into the grownd unlike the beam bridge where it transfers it's weight through the beams wich break more often than arch bridges.
Is a force that pushes down?
Gravity
What bridge clasped?
Londan bridge is falling down, falling down, falling down, londan bridge is falling down, my dear aldy
What is an upside down suspension bridge?
An upside down suspesnion bridge is a arch bridge. If you turn an picture of an Arch Bridge upside down, it will look like a suspension bridge and vice versa.
Is an arch bridge stronger than a suspension bridge?
Yes. An arch bridge is one of the more efficient ways of building and maintaining a bridge. Beam bridges are not as efficient. For a given span and height, an arch bridge will carry a greater load using less material. The beam structures of a beam bridge can be constructed of wood, reinforced concrete or steel (in increasing order of strength). The beams, however, must be supported by piers or an abutment at each end, which can be made out of concrete, masonry, stone, or steel (or combination thereof). The arch structure of an arch bridge can be constructed of wood, reinforced concrete, steel, or masonry, and the arch can be supported by abutments as described above, or the arch can extended down to the foundation itself. The primary advantage of an arch is that stresses caused by the load on the bridge are converted primarily into compressive stresses that are carried along the arch into the ground. Materials like stone, masonry and concrete are particularly good at carrying these compressive stresses. In contrast, loads on a typical beam-type bridge creates large tensile stresses on the bottom of the beams. Since stone, masonry and unreinforced concrete have very little capacity to withstand tension, none of these materials can be used to make a reliable and efficient beam-type bridge of any significant span.
