Final Design
Form
my final design, I decided to choose the arch bridge
that utilized a pulley and tack system. I chose the arch design because it was
easier to span the 190 foot span cause by the river and it would help me not only
support the walkway throughout the span, but also any mechanism I was going to
use to lift a section of the bridge. For the movement of my bridge, I decided
to use a system of weights being on track lifting a section of the bridge by a
system of pulleys. In my final design, I chose to have my opening closer to one
of the edges of the river rather than the center because it would be easier to
supper the lifting mechanism.
Original
Design:
Preliminary
Final Design:
From
this design, I realized the bridge could not be the same thickness at both end
due to one side having to support a larger load. This is why in my final design
I decided not only to make the side with the heavier load thicker, but also
added more structural support to that side by having an extra brace on the
outside of it. Another transformation done to my design was going from a set of
pulleys to only two per side. This change came about because it would be easier
to pull the cables. Because of this, there had to be extra support under these
pulleys. For the final design, I had decided to use an Archimedes cylinder to
lift water from the river to weight to pull the pulleys, because of this
reinforcements in the arch had to be made to support this extra weight.
Final
Design:
South
Elevation:
East
Elevation:
North
Elevation:
3D
Views:
Jose Solorzano