Look at a steel or wooden bridge and often you will see triangle shapes making up most of the bridge’s support structure. These are called truss bridges. Triangles are structurally the strongest shape because they allow weight to be evenly spread throughout a structure, allowing it to support heavy loads.
What Design Shape Supports a Bridge the Best?
A bridge is a structure that spans a physical divide, such as a river, valley, or road, and provides passage over it. Bridges are built in a variety of shapes and sizes to support different loads and span different distances.
The three most common bridge types are beam, arch, and suspension. The type of bridge best suited for a particular site depends on many factors, including the purpose of the bridge, the span and width of the divide, the load to be carried, the foundation conditions, and the construction materials.
Beam bridges are the simplest and most common type of bridge. They are composed of horizontal beams that are supported at each end by piers.
The weight of the bridge and the load it carries are transferred to the piers by the beams. The span of a beam bridge is limited by the weight and stiffness of the beams.
Arch bridges are composed of a series of vertical piers that support a horizontal beam at the top. The weight of the bridge and the load it carries are transferred to the piers by the arch.
Arch bridges can span longer distances than beam bridges, but they are more expensive to build. Suspension bridges are composed of a series of cables that are suspended from towers and support