Most cable-stayed bridges have 2 towers, just like suspension bridges.
the cables found on suspension bridges, which hang down between the 2 towers, do not support the deck or roadway. The suspenders
are the vertical cables that connect the main cables and the deck.
In a cable-stayed bridge, the cables run in straight lines from the tower to the deck.
The main span ( distance between the towers) on this bridge is almost 6 feet.
This is the same tower we used for the suspension bridge- 2 #6 beams supported by a pair of #3 beams.
The base is made up of 4 #4 beams connected by a pair of #3 beams- that's what the brick anchorage sits on.
The deck cantilevers out from the tower. That means it's connected at one end to the tower and the other
end is supported by the cables (the white 1/8" line). To increase the span of the bridge, we hung another deck
section, between the 2 cantileved decks.
Ian demonstrates how to assemble the bridge
The students in Vancouver assembled this cable-stayed bridge and loaded it to failure.