Popsicle stick bridge
To build the bridge within our specifications that has the
highest payload to weight ratio. The bridge must be constructed
of approved materials.
- Building Materials: (All materials provided)
- Popsicle sticks.
- Elmer's glue.
- Min Span Length - 60 cm - min. There will be a 60
centimeter "gap" which must be spanned by the bridge.
- Max Span Width - 15 cm - min.
- Min Span Height - 15 cm - min. There must be 15
centimeters between the table surface and the lowest point
on the bridge span.
- Rule update #2 Diagram presented for clarification:
- The bridge must be able to stand on its own.
- The bridge must be able to support the load at the
loading points. There will be two loading points, each one
will be at the "deck" level, 20 centimeters from the center
of the span.
C. The Competition
D. Judging and Scoring
- Teams must submit their bridge 1/2 hour before the
competition for inspection. Teams will be given 15 minutes to
modify bridges which do not pass inspection.
- Inspection will test that the construction rules were
followed and will record the mass of the bridge.
- Certified bridges will be placed over "Crusher Canyon"
by the team members, who may make final adjustments in its
position. The canyon will consist of a 60 cm space between
two flat desktops. Nothing will be provided to keep the
base of the bridge in place during loading.
- Once the bridge is in position, the loading tray will be
attached in the position indicated above. The load will hang
below the bridge, supported by two bars which rest on the deck of
the bridge, 20 centimeters from each end.
- Bridges will then be subjected to loading. Bridge failure will
be considered the point at which the bridge breaks or the point at
which the loading tray drops more than 5 centimeters from the unloaded
- The greatest load prior to failure will be a bridge's capacity.
- The capacity divided by the bridge mass will be the bridge's score.
- The bridge with the highest score wins the event.