1. Bridge Design
Ana Lucero
Period 5

2. 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
Arch
Truss
Suspension
Beam

3. 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.

4. 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

5. 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

6. 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