1. Types Of Bridges

Question 1

What type of bridge is this?

1. Beam (box girder)
2. Suspension
3. Arch
4. Beam (concrete)

Answer 1

2. Suspension

Question 2

Name some technologies that allowed the Millau bridge in France to be built.

Answer 2

1. GPS- accuracy
2. Plasma cutting of box girder sections
3. continous pouring of concrete
4. Teflon used to push vechile deck into place
5. design of towers to allow movement of vechile deck.

Question 3

What type of bridge is this

1. Beam (box girder)
2. Suspension
3. Arch
4. Beam (concrete)

Answer 3

1. Box girder (welded steel)

Question 4

What type of Bridge is this

1. Beam (box girder)
2. Suspension
3. Arch
4. Beam (concrete)

Answer 4

3. Arch

Question 5

How did bridge materials change over time

Answer 5

early- timber (Romans)

stone and rock gave longivity

cast iron

steel

concrete

Question 6

Describe a box girder bridge?

Answer 6

A beam bridge, which consists of a tube (box) with a rectangular cross section stiffen by a series of girders on each side. Originally made of steel. Extensively used after WWII, most road and freeway bridges utilise this design.

http://en.wikipedia.org/wiki/Box_girder_bridge