Bridge Project Presentation

Group #2Alex Odle

Matt SimonSalim Hamed

Micael Thiodet

Outline of Presentation

• Introduction– Group Members– Goals and Constrictions– Group Goal

• Prototype Testing– Design Process

• Final Design– Changes Made To Final Project

• Conclusion• Final Thoughts and Suggestions

Introduction

• Group Members:– Salim Hamed– Alex Odle– Matt Simon– Micael Thiodet

Goals and Constrictions• Goal:

– Build an efficient bridge

• Constrictions:– Limited Materials– Limited dimensions– Limited Time

Group Goal

Our group initially decided that we were going to focus on efficiency rather than overall weight the bridge can support. For these reasons both the prototype bridge and the final bridge was created using fishing line as substantial material.

Prototype Testing

Types of Considered Bridges:

Cable Stay Bridge

Suspension Bridge

Our Choice… Cable-Stay Bridge

Reasons why we picked a cable-stay:– The supported weight will be forced down to

the sides of the jig– Less materials because we will utilize the

fishing line– Aesthetically pleasing a.k.a. “sexy”

The Completed Prototype

Before the Test After the Test

FAILURE POINT

Results of the Prototype Test

Weight: 0.685 lbs Max. Load: 70 lbs Efficiency: 102

The prototype bridge failed because the fishing line was not under tension. Therefore all the weight was being supported by the deck, which was not designed to support all the weight on its own.

Final Design

Changes made to the final design:– Complete redesign of the bridge– Final bridge will have a string based structure

Reasons for the changes:– More efficient than prototype– Less complicated than prototype–

And still “sexy”

The Final Bridge

Carlos Santana(named for obvious reasons)

Results of the Final Test

Weight: 0.04 lbs Max. Load: 75 lbs Efficiency: 1875

The results of the final test were very pleasing. The bridge didn’t actually fail, instead as the string flexed the metal plate that was resting on the string interfered with the jig. As a result we had to stop the test. Our improvement worked just as we had planned. The bridge was very efficient as seen by the efficiency rating.

Irony?... I think not

In Conclusion…

Carlos Santana

Final Thoughts and Suggestions

Final Thoughts:• We would have used a different size metal platform so

Carlos Santana could have tested until failure

Suggestions:• Have good group communication• Budget materials wisely• Spend plenty of time at the drawing board designing the

bridge• When gluing, don’t use too much glue and clamp the

wood while it is drying

THANK YOU Very Much… Are there any questions?

Good! Because I want to go check and see if my hair

still looks as good as it does in this picture