Subject:
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Re: Arched Through Truss Bridge - LegoWorld 2005 Bridge strength contest
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Newsgroups:
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lugnet.technic
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Date:
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Fri, 20 Jan 2006 14:45:22 GMT
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Viewed:
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5438 times
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In lugnet.technic, Thomas Avery wrote:
> In lugnet.announce.moc, Philippe Hurbain wrote:
> > <http://philohome.com/bridge/bridge.htm
> > <http://philohome.com/bridge/pont1-v.jpg>>
> >
> > Some photos of LegoWorld 2005 Bridge strength contest, and of the arched
> > bridge that I built for it are [<http://philohome.com/bridge/bridge.htm
> > here>]
>
> WOW! That's very impressive. (yeh, I know- I'm a little late in posting this.
> :-) It has a nice shape and looks very stout. The relatively large height
> (compared to the span length) gives it a lot of strength. I like how you doubled
> some of the chord members to eliminate the eccentricity.
Thanks TJ!
>
> I'm glad you found my spreadsheet of some use ;-)
Yes, it was very helpful to optimize member length to minimize members splits
and match my parts collection!
>
> Regarding the contest, I think if the bridges had been judged on a weight to
> strength ratio, yours probably would have won!
I don't think I would have won... this bridge
http://philohome.com/bridge/marc.jpg had about the same weight but was stronger.
Anyway I prefer the look of mine ;o)
But indeed we should have limited the maximum weight of the bridge (2kg would
have been fine for that gap length)
Philo
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