BRIDGE DESIGN ANA LUCERO PERIOD 5 Different types

BRIDGE DESIGN ANA LUCERO PERIOD 5

Different types of bridges • • Suspension: A Bridge that is supported by cables Arch : A Bridge with a curved arch Beam: A simply supported bridge, usually straight like a line Truss: A bridge with a structure of Triangular units Suspension Arch Truss Beam

SUSPENSION BRIDGES • This type of bridge has cables suspended between towers, plus vertical suspender cables that carry the weight of the deck below. • Suspension cables must be anchored at each end of the bridge • The cables suspended via towers hold up the road deck, the weight is transferred by the cables to the towers, which turn in transfer the weight to the ground • Main suspension cables in older bridges was often made from chain or linked bars but modern bridge cables are made from multiple strands of wire.

ARCH BRIDGES • This is a bridge with abutments at each end shaped as a curved arch • Not moveable, low, • Made of: Masonry, concrete, wrought iron, cast iron, timber, structural steel • Can carry Pedestrians vehicles, light rail, heavy rail, water

BEAM BRIDGES • • The span range is short its mostly used for trains and for people to walk across The ancestor is a log bridge This bridge isn’t movable some are pretty low Materials used: Timber, iron, steel, reinforced concrete, prestressed concrete

TRUSS BRIDGES • The beam bridge is this bridges ancestor • Carries: pedestrians, pipelines, Automobiles, trucks, light rail, heavy rail • The span range is Short to medium- Not very long unless its continuous • Some maybe Movable • Material used: Timber, iron, steel, reinforced, concrete, prestressed concrete