Pics of setting final bridge and putting it together/scores

Aesthetics score was a 2.29
and the weight it carried was only 140 lbs much lower then my original bridge

setting the bridge

putting it together was difficult

Dollhouse

floor plan

Full overview

Glass house

individual size of each piece

this pice is about            3.05 sq. inches there are four of them so about  12.2sq inches

this piece is about 1.9375 sq. inches

there are two so that comes to 3.875 sq inches

this is about 1.64 sq in

there area also two of these which comes to about 3.28 sq inches

this piece is larger at  11.5 sq in

and again there are two which comes to 23sq ins

there is only one of these and it is about 26.225sq in

more 3d images

final calculus

final cut lines

views of new 3d bridge

setting the bridge

Bridge Redesign Questionnaire

Bridge Redesign Questionnaire

1.      What is one aspect that you think contributed to this bridges aesthetics?

The birds I designed into the top supports.

a.       What can be done to improve this?

Put more work into making the birds look better.

                                                                                                                                      i.      How will your fix effect the bridges weight?

Hopefully it reduces it quite a bit.

                                                                                                                        ii.            How will your fix effect the aesthetics?

Of course I’m hoping the fix looks like there was more effort put into it.

                                                                                                                      iii.            How will your fix effect the strength?

Because it’s not were all the pressure will be I’m hoping it doesn’t affect the overall strength.

2.                  What is one aspect that you think took away from this bridges aesthetics?

Lack of design on the sides.

a.       What can be done to improve this?

I want to put a light design going up the sides.

                                                                                                                                      i.      How will your fix effect the bridges weight?

I may have to add some weight initially to the design so that I can then take some off for the design.

                                                                                                                        ii.            How will your fix effect the aesthetics?

If I play my cards right then it will improve aesthetics.

3.                  Where did this bridge fail?

The bottom supports gave way.

a.                   What can be done to fix this failure?

I want to add another support or two into the bottom.

i.                        How will your fix effect the bridges weight?

Unfortunately it will increase the weight.

                                                                                                                        ii.            How will your fix effect the aesthetics?

They shouldn’t be seen so it probably won’t effect aesthetics.

                                                                                                                      iii.            How will your fix effect the strength?

The additional supports should significantly affect the overall strength.

4.                  Is there any portion of the bridge you think holds unnecessary weight?

Yes the beam supports they don’t need to be quite so tall.

a.                   What can be done to improve this?

I’m making them shorter.

i.                        How will your fix effect the bridges weight?

Drop the weight a tad.

                                                                                                                        ii.            How will your fix effect the aesthetics?

I’m unsure, I guess it would depend on the individual eye.

                                                                                                                  xxi.            How will your fix effect the strength?

Hopefully it won’t affect the strength at all.

bridge info

The bridge was 40.1 square inches

Charely (my bridge) weighed 1.2 lbs

It held 270 lbs of pressure

The weight to strength ratio was 225

Aesthetics grade was 1.68

Interview

http://www.youtube.com/watch?v=EaMcdP9mBY4&feature=plcp

link to my interview discussing my bridge right after it was tested

Putting it together

it fell apart right as he was going to take a picture

Cut lines

Cut lines

Questions

Does your bridge have a clear 2 inch wide roadway?
yes
Does your bridge hold together without any external force? (i.e. your hand/the testing apparatus)
yes
What is the biggest surprise you found while assembling your cut pieces?
how difficult it wa to put together
Did the string work as planned?
still putting it together
Does your bridge fit into the testing apparatus?
yes
After seeing your bridge together, where do you think your bridge will break?
the underlying supports
Were your cut dimensions drawn perfectly (using absolute/relati​ve coordinates and distance constraints)?
i believe so
If not, how did that impact the bridge building?

Is there anyway you could have foreseen the issues before building the bridge?
i tried to fix any problems before hand
How do you think your bridge looks after building? (1-10 (1 being a piece of junk and 10 being a work of art))
 like a 7 or 8
After seeing a few of your classmates, do you think you used more, less, or about the same amount of material?
i think mine used less then most people
After seeing some of your classmates, do you think your bridge will hold more, less, or average weight?
i think mine will be average though i hope for more
To what degree is the bridge you built the same as what you had in mind before it was cut?
about the same i knew what i wanted to do early on
To what degree is the bridge you built the same as what you had in mind compared to your original hand drawing? compared to my hand drawing its fairly different but i was ignorant then

Pre-cal Bridge

Bridge with grid with a 1-1.5 ratio

My Bridge

My bridge design

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