Our Bridge PresentationGroup # 7 By: Kokul Shanmugharajah, Allen Lam and Branden Viarruel

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Situation/Problem

You are the owner of a civil engineering firm called The Bridge Civil You are the owner of a civil engineering firm called The Bridge Civil Engineering Corp. Your company has been contracted to build a bridge Engineering Corp. Your company has been contracted to build a bridge in a town called Bridgeville with a span of 20m across a river. The in a town called Bridgeville with a span of 20m across a river. The bridge’s road surface must have multiple lanes to handle heavy traffic. bridge’s road surface must have multiple lanes to handle heavy traffic. It must also be able to carry heavy loads since tractor trailers will be It must also be able to carry heavy loads since tractor trailers will be using it to move raw materials and finished goods to and fro from the using it to move raw materials and finished goods to and fro from the Bridgeville industrial district. The bridge must also withstand all Bridgeville industrial district. The bridge must also withstand all weather conditions.weather conditions.

Design Brief

To design a bridge for the town of Bridgeville that can span 20m across To design a bridge for the town of Bridgeville that can span 20m across a river, carry heavy loads, withstand all weather conditions and has a a river, carry heavy loads, withstand all weather conditions and has a multiple lane road surfacemultiple lane road surface

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Ideas / Research

SITUATION FOR DESIGNSITUATION FOR DESIGN

We at Bridge corp intend on contructing a perfect flawless bridge, most We at Bridge corp intend on contructing a perfect flawless bridge, most

bridges have some kind of flaw. We think by designing this bridge we have bridges have some kind of flaw. We think by designing this bridge we have

created the first flawless bridge ever.created the first flawless bridge ever.

INVESTIGATIONINVESTIGATION

How big will it be?How big will it be?

What materials are needed?What materials are needed?

Will it meet the expectations?Will it meet the expectations?

What kind of bridge will be made?What kind of bridge will be made?

IDENTIFICATION of PROBLEMIDENTIFICATION of PROBLEM

A large bridge that can take all weather conditions and a span of 20m with A large bridge that can take all weather conditions and a span of 20m with

multiple lanes.multiple lanes.

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IDEAS/RESEARCHIDEAS/RESEARCH

WEBSITESWEBSITES

www.google.ca/imageswww.google.ca/images

www.bridgesite.com/bridgephoto.htmwww.bridgesite.com/bridgephoto.htm

www.infohost.nmt.edu/~armiller/bridgefu.htmwww.infohost.nmt.edu/~armiller/bridgefu.htm

www.roadstothefuture.com/Chesa_Bay_Bridge_Photos.htmlwww.roadstothefuture.com/Chesa_Bay_Bridge_Photos.html

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SolutionHow big will it be?How big will it be?

Since the bridge is supposed to span only 20m. Our group decided that a Howe Since the bridge is supposed to span only 20m. Our group decided that a Howe truss bridge should be sufficient enough for the problem.truss bridge should be sufficient enough for the problem.

What materials are needed?What materials are needed?

The bridge will be 31.5cm in length, 10cm in width and 10cm in width.The bridge will be 31.5cm in length, 10cm in width and 10cm in width.

Will it meet the expectations?Will it meet the expectations?

The bridge will be used The bridge will be used to allow cars, trucks and people to Bridgeville's industrial to allow cars, trucks and people to Bridgeville's industrial district.district.

What kind of bridge will be made?What kind of bridge will be made?

We need wood, wax paper, a glue gun to attach everything together and a sander.We need wood, wax paper, a glue gun to attach everything together and a sander.

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Solution

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TEAM EVALUATIONSTEAM EVALUATIONS

NAMES 1 2 3 4 5A M A M A M A M A M

KOKULY 10 Y 10 Y 10 Y 10 Y 10

ALLEN Y 10 Y 10 Y 10 Y 10 Y 10

BRANDEN Y 10 Y 10 Y 10 Y 10 Y 10

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RealizationSince we chose a modified Howe truss bridge, we decided that we couldn’t just start without making a step-by-step plan of how we were going to build the bridge.

Materials• ¼ inch by ¼ inch wood• Glue gun• Wax paper• Pencil• Sander

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Procedure1. First, a sheet of wax paper was placed top of the bridge sketch. The

sketch’s corners were taped to the wax paper.2. Sticks of wood were placed onto the sketch making sure they were

lined up to the lines on the sketch.3. Using a pencil, the sticks were marked with the length needed in

order for them to line up with the sketch.4. The sticks were cut to their needed lengths or sanded for minor

adjustments in length using the sander.5. The trimmed sticks were placed back onto the wax paper covering

the sketch and arranged so they all line up with the sketch.

Realization

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Realization6. The sticks were glued together using the glue gun and a one The sticks were glued together using the glue gun and a one

side of the bridge was made. The bridge was pulled off the wax side of the bridge was made. The bridge was pulled off the wax paper and put to one side.paper and put to one side.

7. Steps 2-6 were repeated for the second side of the bridge.7. Steps 2-6 were repeated for the second side of the bridge.8.8. Ten 10cm long sticks were cut out.Ten 10cm long sticks were cut out.9. The two sides of the bridge were joined together by placing 9. The two sides of the bridge were joined together by placing

the 10cm long sticks evenly spaced in between the two the 10cm long sticks evenly spaced in between the two sides of the bridge.sides of the bridge.

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Realization

10.10. More sticks were measured and cut out so they can separate More sticks were measured and cut out so they can separate the squares formed by the 10cm long sticks into triangles. the squares formed by the 10cm long sticks into triangles. These sticks were then glued as shown by the diagram. These sticks were then glued as shown by the diagram.

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Evaluation

Since we haven’t yet had the time to test our bridge on the Structure Stress

Analyzer, we don’t have any testing data.

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