Tuesday, May 1, 2012

A2 - Zhu

Elevation:

Plan:

Truss Bill of Materials:



                   
The design goal for this assignment is to create a bridge that has the best price to weight ratio while still meet the requirements of the design constraints. The basic shape of this bridge is a trapezoid with squares and a diagonal within each square to reinforce the stableness. The shape of the design did not change much during the design. The only difficulty I had was to meet the constraint of 2’ in length. I originally started with yellow chords going across and red chords going diagonally, but that did not meet the 2’ mark. Rather than adding on a whole square, I have decided to replace the yellow chords by blue chords, and replace red chords by yellow chords. The reason I did that is because I have learned from WPBD that shorter chords are stronger and cheaper than the longer ones. From this assignment, I have learned that it is very important to keep a record of all the works and make accurate measurements. Additionally, I also learned it is necessary to keep an open mind to changes—it is alright to restart a project as many times as you need because the result is what matters the most.

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