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A bridge which nos of span are more than two called major bridge and a bridge which nos of span is one or two called miner bridge
You should consider the gravity of earth and the mass of the bridge because mass effects the gravitational pull on an object. Also, consider forces of nature. Consider the location of the bridge and how much trafficking will happen on it. If one of these are ignored your bridge could easily fall apart.
A cable stay bridge may transfer forces that act on it by eventually transfer into a bedrock beneath the bridge foundation. One way of determining how this done is by using the seesaw method.
Compressive and tensile forces are present in all bridges, and it is the job of engineers to design bridges capable of withstanding these forces without buckling or snapping. Buckling occurs when compressive forces overcome an object's ability to handle compression, and snapping occurs when the tensile forces overcome an object's ability to handle tension. The best way to deal with these forces is to either dissipate them or transfer them. To dissipate force is to spread it out over a greater area, so that no one spot has to bear the brunt of the concentrated force. To transfer force is to move it from an area of weakness to an area of strength, an area designed to handle the force. An arch bridge is a good example of dissipation, while a suspension bridge is a good example of transference. Figures 6 and 7 illustrate tension and compression forces acting on three bridge types.
Gravity.
War
the nations fiances
Harry HoudiniJumped off a bridge with his hands handcuffed. Then he jumped off a bridge and escaped the hand cuffs.
Major power war
Deter major power war
Major power war
Deter major power war