Building Bridges

Class nine’s Bridges

In DT class 9 have been making bridges.

Here is our success criteria:

.The bridge must hold 200g.

. It has to be able to span the width as a school tray.

. It has to be free standing which means you can’t hold it.

. It has to be between 15-20cm wide.

There were 6 different types of bridges

Suspension

Arch

Truss

Beam

Cantilever

Cable-stayed

The maxim weight that our bridges could hold was 8kg 250g.THAT IS HEAVY!

My bridge could hold 6kg and my bridge could hold 8kg 250g.

My bridge was made completely out of card and glue oh and don’t forget the lollypop sticks !!!!! 

                       By CM & EG

Bridges  

In class nine we had a D.T day where we had to make different types of bridges made out of recycled materials.

There is six types of bridges they are a suspension bridge, Arch bridge, Truss bridge, cable stayed bridge, Beam bridge and a Cantilever bridge.

The different types we made were suspension, Arch and Truss Bridge.

The success criteria was:

Must hold 200 grams

Must be free standing

Must be the length of a school tray

Must be between 15-20 centimetres wide.

T.M & M.B

The Winning Bridges