Subject:
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Re: Suspension Bridge
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Newsgroups:
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lugnet.build.arch
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Date:
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Thu, 20 Mar 2003 22:27:11 GMT
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Viewed:
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2248 times
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In lugnet.build.arch, Patrick O'Donnell writes:
> I got a scanner for my birthday on March 9 and I'm now getting around to
> posting my pics of a suspension bridge I built nearly 8 years ago! This is
> my first attempt at putting something on BrickShelf.
>
> There are four pictures in this folder. The first was taken in my basement,
> and the remaining three were taken while the bridge was on display at the
> elementary school where my wife teaches. In viewing my pics on BrickShelf I
> have a few questions. I'd appreciate if someone can be of assistance.
>
> #1 Why is the quility of the last three pictures so poor as compared to the
> first picture?
This may be a combination of lighting and focus - where lighting is poor, it's
difficult to get a clear picture. Also if it was cold your lens may have had
condensation on it.
> #2 Why do the pictures appear massive - how can I make them to fit the
> screen like most everybody elses?
Use an image manipulation program to crop / resize it. I use and recommend
http://www.irfanview.com/
> http://www.brickshelf.com/cgi-bin/gallery.cgi?f=37444
>
> Bridge stats:
>
> Total length - 32'
> Main Span (distance between towers) - 18'
> Total pieces - 17,000+
> Hours to build - 200 over a 6 month period
> Hours to disassemble in sections in basement to move to the school - 8
> Hours to reassemble at the school - 12
>
> As is quite visible, there are non-LEGO elements in this MOC. The main
> cables are 5/8ths nylon rope. Don't use cotton clothsline as it stretches
> way too much! The suspenders are again a nylon string. Under the
> anchorages (the white structures at the ends of the bridge) are 24" X 24"
> concrete stepping pavers in which the main cables are affixed to.
>
> I didn't attempt to model this bridge after any particular bridge. Like an
> engineer, I had to make the best with what I had. There are some
> similarities such as, the blue towers and cross bracing from the Ben
> Franklin Bridge in Philadelphia, the point where the suspenders attach to
> the deck being well out from the roadway like that of the Verrazano Narrows
> Bridge in NYC, and the steep roadway of the main span from the Deer Isle
> Bridge up in Maine. The roadway (deck) on this bridge is not common for
> American bridges. American suspension bridges have thick trusses due to the
> collapse of the 1st Tacoma Narrows Bridge or better known as Galloping
> Gertie. In Europe, sleek airfoil decks are the norm, thus allowing wind to
> smoothly glide over and under the deck. There is currently a suspension
> bridge under construction to replace one of the Carquinez Straits bridges in
> California. It will be the first major suspension bridge in North America
> to have the airfoil deck. Below is a link to a photo of the bridge with
> some of the deck sections in place.
>
> http://www.franklinnewbridge.org/wpe40.jpg
Thanks Patrick! I found the profile of the deck interesting, I've never seen a
suspension bridge with that much rise & fall!
> I'll be following this post in the near future with my Cable-Stayed bridge.
Cool! Be looking forward to it 8?)
ROSCO
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Message has 1 Reply:
 | | Re: Suspension Bridge
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| (...) Thank you ROSCO for viewing my suspension bridge and taking the time to be of assistance by responding to the BrickShelf questions. The pictures on BrickShelf are uploaded from my folder of scanned pictures. My pictures look fine and I'm very (...) (22 years ago, 21-Mar-03, to lugnet.build.arch)
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