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First Annual Sea to Sky Popsicle Bridge Building Contest
Popsicle Bridge Building Contest was held March 10, 2001
at Park Royal South and was a real success.
Thanks to the volunteer team which provided assistance: John
Robertson, P.Eng., Desmond Williams, P.Eng., Johanna Mantsinen,
EIT, Amir Mohseni, EIT, Gilles Therrien, P.Eng., Michael A.
Bakst, P.Eng., Paul Loewen, P.Eng., Ronald D. Louie, P.Eng.,
Andy Mill, P.Eng., Max Bischoff. P.Eng.
1.2
1st PRIZE |
Marissa Lamb |
“Deck” truss |
232/1032 |
Joint failure at top chord/end diagonal
joint |
150g |
1.10
2nd PRIZE |
Thomas Zunino
Mathew Joyce |
Parallel chord deck truss |
178/792 |
Lower chord/end diagonal joint failure |
157g |
1.5
3rd PRIZE |
Jiley Horne
Sonya Stojkovic |
Parallel chord truss with irregular diagonals
and a partial length horizontal at truss mid-height |
112/498 |
Limited lateral bracing allowed severe
sidesway and separation of joints |
140g |
1.4
Honourable mention |
Connor Loewen
Wesley Dekleer |
Arch Bridge, consisting of double arches
laced together and a straight bottom chord |
112/498 |
Some of the top lateral bracing popped
and a severe sidesway ensued |
152g Heavier weight bridge resulted in
4th place |
| 1.1 |
Nicholas Hamata |
Parallel chord “through” truss |
72/320 |
Top chord buckled between lateral struts |
123g |
| 1.3 |
Kiel Strang |
A type of girder span, having transverse
floor beams sandwiched between upper and lower longitudinals |
78/347 |
Cross (floor) beams separated from lower
longitudinals, with very large deflections ensuing |
222g |
| 1.5 |
Alex Stojkovic |
Parallel chord “through” truss, with a
longitudinal at mid-height of trusses |
110/489 |
Several transverse floor beams separated
from truss, permitting sidesway. Failure by separation
of lower chord end joint. |
145 |
| 1.7 |
Colin Lum
Robert Wilkinson
Alexandra
Burgin |
Arched “through” truss, with the deck located
at mid-height of truss high point. Irregular diagonals
in truss |
25/111 |
Deck transverse members separated from
supporting diagonals and were forced down |
169g |
| 1.9 |
Justin Wong |
Girder bridge consisting of construction
paper deck & under deck, sandwiching transverse members
|
6/27 |
Very ductile; severe deflection resulted
in girder slipping off test frame supports |
139g |
| 1.11 |
Nick Joyce |
Arch (top chord) “through” truss |
93/414 |
Transverse top chord strutting popped loose,
permitting top chord buckling at midspan |
184g |
| 1.12 |
Adam Fiss |
Parallel chord “through” truss |
17/76 |
Some top chord lateral bracing popped off.
Failure when bottom chord separated from end bearing transverse
member. |
156g |
2.2
1st PRIZE |
Cody Dart |
Parallel chord through truss;
length a bit short for test frame |
81/360 |
Some truss diagonals popped
off; severe side sway ensued and finally end bearing slipped
off test frame. |
160g |
2.7
2nd PRIZE |
Willie Huang |
Tied arch “through” bridge
with double arch members; straight tension chord with
no diagonal members from the arch members |
59/262 |
Tension chord failure |
148g |
2.4
3rd PRIZE |
Sarah Hansen
Brian Lai |
Parallel chord “through” truss with irregular
diagonal members |
45/200 |
A midspan vertical popped off top chord,
permitting the truss to spread open |
193 |
| 2.1 |
Jessica Tao |
Parallel chord warren deck truss |
33/147 |
Lack of lateral bracing permitted severe
sidesway |
146 |
| 2.3 |
Ben Heaps |
Parallel chord “through” truss. |
36/160 |
The limited amount of top chord lateral
bracing began popping off; permitting severe sidesway,
followed by a catastrophic collapse |
152 |
| 2.5 |
Pegah Soltani |
Tied arch “through” bridge; verticals down
to the straight lower chord & deck ,without any diagonals |
16/71 |
Lack of sufficient lateral bracing permitted
severe sidesway of arch; joint failure at end of arch;
followed by the end bearing sliding off test frame |
105 |
| 2.6 |
Corey Hollet
Braden Shaak |
Parallel chord “through” truss |
-- |
Glue still wet so unable to test |
168g |
3.6
1st PRIZE |
Kevin Chen |
Inverted single braced arch “deck” bridge,
with transverse floor beams resting on the straight top
chord |
332/1477 |
Tension failure in the lower (arch) chord
adjacent to end bearing |
147g |
3.3
2nd PRIZE |
James Lamb |
Inverted braced arch bridge with straight
top chord which supports the deck members |
252/1121 |
Top chord extensions acting as end bearings
developed severe bending |
166g |
3.7
3rd PRIZE |
James Yoneda |
Inverted single braced arch “deck” bridge,
with transverse floor members resting on the straight
top chord |
247/1099 |
Failed at joint between bottom (arch) chord
and an end diagonal |
146g |
| 3.1 |
Martin Brucker |
Parallel chord “through” truss |
135/601 |
Top lateral bracing popped off, followed
by buckling of top chord at midspan |
131g |
| 3.2 |
Bruce Randall |
Parallel chord “through” truss, with the
whole bridge perched on tall end supports. The deck transverse
members are supported at the upper quarter point on the
truss diagonals |
65/289 |
Deck transverse member connections popped
off, followed by a catastrophic failure as one of the
trusses tore apart at midspan |
146g |
| 3.4 |
Vivien Mao
Tiffany Lin |
Parallel chord truss bridge |
60/267 |
Lack of lateral bracing allowed severe
sidesway |
135g |
| 3.5 |
Eric Fiss |
Triangular space truss, with deck on the
bottom chords |
40/178 |
The single top chord joint failed at the
point where it joined an end diagonal |
90g |
| 3.8 |
Jeff Jarvis |
Parallel chord through truss, with top
chord loading. |
68/302 |
Severe sidesway |
184 |
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