Every beam, cable, and arch is engaged in a delicate dance with gravity, tension, compression, and motion. A bridge must endure wind, temperature changes, earthquakes, and the steady rhythm of traffic. A bridge is a structure that is built to span a physical obstacle, such as a river, valley, road, railway, or any other obstacle that hinders the movement of people, vehicles, or goods. Most bridges consist of a flat deck, supported by beams, arches, or cables. A beam is typically long, squared pieces of timber, metal, or concrete designed to handle. Truss Bridge A truss bridge is one of the most common and effective types of bridges. This design allows truss bridges to handle heavy loads while maintaining structural stability. A river cuts through the land, a canyon opens beneath a traveler's feet, or a highway must cross a busy valley—and suddenly the need arises for something extraordinary.
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