Bridge PhysicsThe physics behind bridges is more complex than it appears at first glance. To ensure that a bridge is properly supported, many concepts must be understood and used in the correct manner. What is a bridge? A bridge is a complex structure allowing passage across an obstacle: a structure built over and above a river, road, or other obstacle to allow people or vehicles to cross it. Bridge Forms There are four main forms of bridges: girders, trusses, arches, and suspensions. A girder bridge, also known as a girder bridge, contains a horizontal beam supported by 2 piers. at each end. The beam presses on the pillars, which weakens the entire bridge. These simplistic bridges are the shortest of all types due to the lack of built-in supports. The farther apart the supports are due to the stretching of the bridge, the weaker the girder bridge becomes, so that on average they only span about 76.2 meters. Therefore, this type of bridge must be able to resist twisting and bending when a heavy load rests on it. Reinforced concrete and steel beams are most commonly used to make the...