Types of bridgesSuspensionBeam ArchCantileverTrussCable-stayeddraw

Suspension/Cable stay bridge Verrazano-Narrows Bridge

Suspension/Cable-stayed - The deck (trafficway) of a suspension bridge is hung by cables which hang from towers. The cables transfer the weight to the towers, which transfer the weight to the ground.Cable-stayed bridges have towers, but cables from the towers go directly to the road deck, instead of spanning from tower to tower.

Suspension/Cable stay bridge Golden gate bridge

Suspension/Cable stay bridge

Suspension

It can span 2 kilometers to 7 kilometers feet much more further than any other

bridge.

Beam bridge

Beam - The beam type is the simplest type of bridge. The beam bridge could be anything as simple as a plank of wood to a complex structure. It is made of two or more supports which hold up a beam.

Beam Bridge

A beam bridge is made out of two supports that hold up one beam….

Arch bridge Lupu bridge - Shanghai

Arch - In the arch type of bridge, weight is carried outward along two paths, curving toward the ground.

Arch bridge The rainbow bridge, Niagra Falls

Arch bridge Sydney Harbour Bridge, Sydney

Arch bridge

An Arch bridge is made out of stone, steel or concrete. They span up to 8

kilometer.

Cantilever bridge Forth bridge, Scotland

Cantilever bridge

Cantilever - In the cantilever type of bridge, two beams support another beam, which is where the deck or trafficway is. The two beams must be anchored, and this must be done well.

Cantilever

There are 2 to 3 support beams depending on the wave tops they are usually used where waters are

deep.

Truss

A truss bridges is made of triangulation mostly out of steel bars, they are

frames of a tunnel when looked at from the side and front view.

Draw bridge

A draw bridge is a bridge that opens at the top to allow ships and boats to pass under it as they are not high

bridges..

Cable-stayed

Very similar to a suspension bridge but instead of steel bars, it uses reinforced

Cables.

Wonderings

What is the longest bridge in the world? – How much did it cost to build? – Why was it built? – How much weight can it support? – How long is it?What is the longest bridge in Switzerland?What is the shortest bridge in the world?When was the first bridge built? – What is it called?

Reference

Bell, F. (2011) Connectives: Its Place in Theory-Informed Research and Innovation in Technology-Enabled Learning. International Review of Research in Open and Distance Learning. Volume 12, Number 3. Retrievable from web http://www.irrodl.org/index.php/irrodl/article/view/902/1664 (accessed 22 February 2014).

Cormier D, Siemens G (2010) Through the open door: open courses as research,Technologylearning, and engagement. EDUCAUSE Review; 2010; 45(4): 30-9. http://www.ispub.com/journal/the_internet_journal_of_medical_education/volume_1_number_2_71/article/a-brief-guide-to-understanding-moocs.html (accessed 22 February 2014)