Eligibility

• Registered full-time engineering students (undergraduate or graduate),in universities, colleges or CEGEP.

Fees

Important Change: We have changed the pricing structure to be directly proportional to the number of participants. We also offer quality accommodations at a reasonable price.

Please choose one option:

1. $100 per team member (1–6 people), includes:
   • Hotel accommodation: 2 nights at Residence Montreal downtown.
   • breakfast at the hotel
   • The Competition
   • lunch
   • dinner and awards ceremony
2. $60 per team member, includes:
   • The Competition
   • lunch
   • dinner and awards ceremony

Notes

Tickets for the after-party will be on sale at the Competition.

Please confirm the exact number of members on your team by filling out the registration form
and submitting it before the registration deadline.

Each institution may have more than one team, but no more than five (5).

The organizers reserve the right to refuse registration for reason
of time and space restrictions.

No refunds will be provided. In extreme cases including unforeseen circumstances, refunds will be considered on a per-case basis.

For all registrations, your registration will NOT be finalized until your payment is received by our server. When your registration is finalized you will appear in the list of participating teams.

All bridges competing in the Troitsky Competition must be made entirely from these materials:

1. Wooden Popsicle sticks (~11.5cm long, ~1cm wide, ~0.2cm thick)
2. White all-purpose glue or equivalent substitute.

   Examples: Lepage or Elmer’s white glue are acceptable.No epoxy, carpenter’s glue, cyanoacralyte or other glue may be used.

3. Wooden Toothpicks (non‐colored)
4. Dental floss

TEAMS USING UNAPPROVED MATERIALS WILL BE DISQUALIFIED.

…except the booth display!

All of the bridges will be presented to the public and the judges in your booth.
It can be challenging and fun to create realistic scenery to surround your bridge
in its booth display.

Maximum and minimum bridge dimensions as well as further specifications must follow these guidelines to avoid disqualification (please see figure below).

General Constraints

• Sections of the bridge are to be built in advance, and to be assembled within a two (2) hour period in the day of the competition.

  FURTHER WORK DONE OUTSIDE THE TWO HOUR ASSEMBLY PERIOD WILL DISQUALIFY THE BRIDGE.

• Each pre‐fabricated component must fit in a box of dimensions 500 x 400 x 350 mm. No part may protrude from the box.

  Question: Must all components fit in the box, or they can be in different boxes?

  Answer: No, the pieces do not have to fit simulatenously in the same box; but individually they must all fit.

• No power tools are allowed for assembly on the day of the event. However, manual tools are permitted.

Permitted Tools

• Hand drills, pin drills
• Hand saws, razor saws
• Sanding blocks, sandpaper
• Clamps, weights
• Knives: pen-knives, utility knives, hobby knives (X‐Acto) or single-edged razor blades
• Other manual tools

Forbidden Tools

• Power drills
• Electric saws
• Power sanders
• Other power tools

• At the weigh in, the bridge deck will be subject to a dead weight of 8kg placed at two randomly (2d6) chosen points among 6 equally spaced points on the deck. If the two dice have the same value, the two points coincide and the whole load is placed there. The weigh‐in Committee will locate these 6 points on the bridge deck. The team rolls a die twice to select two different points and then places the dead weight at each of these two designated positions for 5 seconds. A 25 point penalty from the final score will be applied to any bridge that cannot support this dead weight.

  NO REPAIR IS PERMITTED AFTER THE DEAD WEIGHT TEST.

Dimension Constraints

• Official bridge dimensions in a compressed AutoCAD .dwg file.
• The minimum unsupported span must allow a 1000mm long by 150mm high box to pass freely underneath the bridge.
  Penalty: –5 points for failure of the box to clear the structure.
• The maximum unsupported span length cannot exceed 1200mm.
  Penalty: –5 points for length over 1200mm.
• The maximum length of the entire bridge must not exceed 1350mm.
  Penalty: –5 points for length over 1350mm.
• The maximum height of the bridge (from the ground to the tallest point) must not exceed 600mm.
  Penalty: –5 points for height over 600mm.
• The maximum width of the bridge at any point must be no more than 350mm, so it can fit into the testing apparatus.
  Penalty: –5 points for length over 350mm plus lost competitive points.
• The maximum height of the span (the deck or platform) must not exceed 450 mm from the ground.
  Penalty: –5 points for deck height over 450mm.
• A smooth continuous bridge deck for vehicular traffic must be provided along the entire span of the bridge. It must run the entire length of the bridge. The continuous deck must be constructed entirely of wood (i.e. no solid glue decks).
  Penalty: –25 points for a nonconforming deck. This penalty is particularly severe, since a road bridge without a deck is rather pointless.
• The minimum operating width of the bridge deck must be 150mm.
  Penalty: –5 points for deck width under 150mm.
• The slope of the deck must not exceed 6% (height difference of 3cm over 50cm span).
  Penalty: –5 points for deck slope over 6%.
• The load will be applied on the deck of the bridge. A clear opening of at least 100mm by 100mm must be maintained above the center of the bridge deck so that loading jack may be applied at the center point of the deck.
• No external anchorage of the piers is permitted.
  Penalty: –15 points for anchoring piers… although, frankly, how this would be accomplished is a mystery to us. The bridges rest on a flat smooth steel surface in the Crusher.
• The maximum bridge weight is limited to 6.0kg and the minimum weight is 1.0kg.
  Penalty: –5 points for bridge mass under 1000g or over 6000g; –25 points if over 10kg.
• The bridge is considered to have failed once the maximum deflection of 50mm is reached or, any member fails and the carried load at that point will become its ultimate load.
• IF ANY OF THESE CONSTRAINTS ARE NOT MET, POINT DEDUCTIONS OR DISQUALIFICATION MAY BE IMPOSED AT THE SOLE DISCRETION OF THE EXECUTIVE COMMITTEE. These rules are intended to be complete, but the discretion of the Committee is reserved at all times.

The bridges will be evaluated by the following system: