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The Longest ,Lightest And Strongest Popsicle Stick Bridge

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by

Rufaida Rahman

on 23 October 2012

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Transcript of The Longest ,Lightest And Strongest Popsicle Stick Bridge

Loongeestt, The By : Rufaida Rahman The quality control manager ^ My role : As Quality Control Manager, it is my responsibility to check the tie members ,dummies, stringers and trusses. Tasks I Completed : I made a Popsicle stick bridge like every other student, made a Daily Log and a Design Process Log to keep track of what I've been doing and plan ahead. Lightest And Strongest Popsicle Stick Bridge! I also guide them by giving them a level just to make sure they know what they are doing right and wrong. The Design Process : What Is A Truss Bridge? A Truss Bridge is technically a Beam Bridge with braces. It relies on principles of compression. The very top of the truss bridge gets the most compression, and the very bottom of the bridge experiences the most tension. The middle of the beam has little compression or tension. How successful was my bridge? I think I did the best I could with my bridge, I tried my hardest and gave my all and it turned out pretty good, so I think I was successful. Even though a lot of my tie members broke and it was a struggle to keep them straight, I finished and it may not be the perfect bridge but it's my best. Did I like my project? I think this project made me realize everything isn't as easy as it looks. This project made me work hard and never give up. My bridge did fall apart and I thought I could never fix it, but I did and now y work has payed off. I did enjoy my project very much. :) Goals And Accomplishments : The goal was to make the lightest, strongest and longest bridge out of Popsicle sticks. It also has to carry a 150 pound person.

The accomplishment was that my bridge didn't break when I stood on it and I also finished my bridge on time and attached it with Samuel's. Stringers:
Use 4.5" long x 0.38" (inch) solid wooden popsicle sticks . For the top stringer you'll need 7 sticks, 3 in the front and 4 at the back. For the bottom stringer you'll need 5 sticks, 2 in the front and 3 in the back and glue them together. Truss : To make a truss you'll have to add popsicle sticks ,one on each side to add the top and bottom stringers, which should make a trapezoid shape each stick should be 70 degrees from the stringers. After that, you add 7 more Popsicle sticks in front and 7 on the back to make triangle shapes. Each stick on the triangle should be 1/4 of an inch apart. Design Process Continued : Individual Bridge: To make a Individual Bridge you need to add tie members, stringers, and trusses. To add support you use diagonals and create "x"s. These add support because these create the strongest shape; a triangle. Compression Tension Compression Tension Tension Compression My Bridge! THE END!

and any other information will be included in my design process log. 70 o : 1/4 of an inch not my truss, it's not perfect. The tie members all have to be alined. Tie Members
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