the university of alabama in...
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Team UAH Faculty Advisors:
Dr. Houssam Toutanji
Dr. John Gilbert
Contact Members:
Mr. Tim Barnett
Mr. John Martin
2000/01 President:
Mr. Mitch Meeks
President Elect:
Mr. Todd Watts
Concrete Canoe Chair:
Mr. Stuart Johnson
Competition Report
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History Concrete Canoe
Competitions
Originated during the early 70's.
Regional races began in the '70s and '80s.
Competition went national in 1988.
Referred to as the America's Cup of
college civil engineering.
14th offering; June, 2001; San Diego, CA.
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Objectives - ASCE/MBT
Concrete Canoe Competition
Provides a practical application of basic
engineering principles.
Challenges students' problem solving
abilities.
Develops team and management skills.
Shows young people that engineering is
rewarding and fun.
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Overall Scoring - ASCE/MBT
Concrete Canoe Competition
Design Paper 20%
Oral Presentation 20%
Display 10%
Final Product 20%
Races 30%
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Statistics
for UAH Southeast representative
12 times – tied with
South Dakota Tech,
UNO, and Virginia Tech
for most appearances.
5 national titles – 4 for
Berkeley, 2 for Clemson.
Average placement of
2.92 – FIT at 3.5,
Berkeley at 3.82, etc.
Only school to have won
all 5 categories – and
each category was won
at least 3 times.
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2001 Design Report (1st place) UAH, South Dakota Tech, Clemson,
Oklahoma State, Laval
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2001 Display (3rd place) Clemson, Oklahoma State, UAH, Drexel,
North Carolina State
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2001 Presentation (5th place) Minnesota, Colorado School of Mines
Oklahoma State, Clemson, UAH
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2001 Product (2nd place) Laval, UAH, South Dakota Tech,
Minnesota, Clemson
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2001 Race Points (2nd place) Clemson, UAH, Laval,
Berkeley, Oklahoma State
UAH recorded the fastest times in all racing
categories including the slalom/distance
and sprint races.
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Races – ASCE/MBT National
Concrete Canoe Competition
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2
1
3
5
5
4
6
"Soft" chines lower the prismatic coefficient andreduce the wetted area over a non-roundedsection. The narrow width increases the effectivelength, resulting in a higher hull speed.
2
The asymmetrical shape and sharp edge of the bow (front) facilitate asmooth entry into the water, and the rounded bottom aids in turning. The flared hull deflects water. [See corresponding color on diagram.]
1
The hull is so strong andlightweight that cross membersand flotation are not required.
3
The shape of the stern (rear) improvestracking and reduces the amount of waterdisplaced during m aneuvers. In addition tobeing hydrodynamically efficient, theaerodynamic shape is less susceptible to sidewinds.
4
The underside of the bow and stern is curved upward todecrease wetted surface area and reduce the lateralresistance during turns. The rocker (longitudinalcurvature) increases maneuverability and decreases thepressure drag during forward movement.
5
With a natural frequency of only 6 Hertz, our flexible canoe is radically different from the rest. As our paddlers drive the boat toward resonance, it surges forward between strokes and swims.
6
2001 Design Attributes
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2
1
3
5
5
4
6
"Soft" chines lower the prismatic coefficient andreduce the wetted area over a non-roundedsection. The narrow width increases the effectivelength, resulting in a higher hull speed.
2
The asymmetrical shape and sharp edge of the bow (front) facilitate asmooth entry into the water, and the rounded bottom aids in turning. The flared hull deflects water. [See corresponding color on diagram.]
1
The hull is so strong andlightweight that cross membersand flotation are not required.
3
The shape of the stern (rear) improvestracking and reduces the amount of waterdisplaced during m aneuvers. In addition tobeing hydrodynamically efficient, theaerodynamic shape is less susceptible to sidewinds.
4
The underside of the bow and stern is curved upward todecrease wetted surface area and reduce the lateralresistance during turns. The rocker (longitudinalcurvature) increases maneuverability and decreases thepressure drag during forward movement.
5
With a natural frequency of only 6 Hertz, our flexible canoe is radically different from the rest. As our paddlers drive the boat toward resonance, it surges forward between strokes and swims.
6
2001 – Design Attributes
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Adaptive Reinforcement
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Mix Proportions
kg/m3 (lb/ft3) [%]
Portland Cement
Latex
Acrylic Fortifier
kg/m3 (lb/ft3)
K25 Spheres
Water
Water / Cement
28 Day Strength [MPa (psi)]
Unit Weight [kg/m3 (lb/ft3)]
Concrete Strength to Weight
Elastic Modulus [GPa (Msi)]
Water Resistance
Workability
Dry Plate Strength / Weight
Wet Plate Strength / Weight
Percent Difference
Good
Aggregates
1.20
318.4 (19.9)
0.793 (0.115)
14.7
757 (47.3)
4.8 (696)
-12.2%
Primary Mix (No further trials were required.)
16.4 (1.0) [5%]
Good
39.2
34.4
Binding Materials
266.2 (16.6) [80%]
51.7 (3.2) [15%]
104.3 (6.5)
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Canoe Construction
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Composite Lay-up
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Final Product
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Homecoming
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2002
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ASCE 150th Anniversary
June 20-24, 2002 in Madison,
Wisconsin
Steel bridge and concrete
canoe competitions held
simultaneously.
Workshops, job fair, etc.
UAH vies for 6th national title.
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