Water Bridge for Boats over a River - An engineering marvel
A water bridge for boats built over a river. Pretty amazing!http://www.funonthenet.in/content/view/223/31/ http://www.dw-world.de/dw/article/0,,990878,00.html |
Mar 24
2006
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| And he's probably got more sense than to bite at your troll.
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'Til next time, John H ***** Have a Spectacular Day! *****
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JohnH
Mar 25
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| It is not a troll John. It is a statement of fact. ;-) |
Mar 25
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| >> > I wouldn't want to spend too much time under it. |
gfretwell
Mar 25
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| Pic: http://www.funonthenet.in/images/stories/forwards/waterbridge.jpg |
Mar 24
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| There's at least one of these, though smaller, at Dizzyworld. |
Harry
Mar 24
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| Can you imagine the weight of bridge structure, water & boats.
I wouldn't want to spend too much time under it. |
Don
Mar 24
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| Nah, I'd stay under it all day. It's not really that bad. For one
thing, the water (the heaviest element) is a totally uniform load,
meaning it's spread out over the entire surface, not a point load,
plus, it's static not dynamic. Now, there is some tremendous loading
going on, but it's all very easily accounted for, nothing abnormal
going on. |
basskisser
Mar 24
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| boat adds absolutely no weight to this bridge... physics 101 |
Dan
Mar 24
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| Theoretically, the weight of the water and boats is a constant. What varies
is the people walking across or standing on the bridge. |
Bert
Mar 24
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| BFD -- The Erie Canal had one of these in 1836 over the Genesee river http://tinyurl.com/l55qb
http://tinyurl.com/keff4 |
Jim
Mar 25
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| Here is the URL with a drawing of the Aqueduct over the Genesee River (Still
in use as the Broad Street Bridge. The Upper deck is the "street" and the
lower deck is the (now idle) original aqueduct. http://www.nycanal.com/nycanalhistory.html |
tak
Mar 25
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| http://www.nycanal.com/canaltour/mapindex.html
Another aqueduct, in Palmyra, (hometown) lots of summer fishing here as a
kid. Apparently, hydraulic engineering back in the early 1800's, wasn't up
to task of controlling natural streams and the canal, hence the numerous
devices to keep the waters separate. |
tak
Mar 25
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| Here is the URL with a drawing of the Aqueduct over the Genesee River (Still
in use as the Broad Street Bridge. The Upper deck is the "street" and the
lower deck is the (now idle) original aqueduct. http://www.nycanal.com/nycanalhistory.html |
tak
Mar 25
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| Prove it...!! |
basskisser
Mar 25
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| Think about what causes a boat to float (or anything to float). His point
will come to you. Or Google displacement
T |
tak
Mar 25
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| http://www.boatsafe.com/kids/021598kidsques.htm |
Bert
Mar 25
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| You are absolutely right. It is all about displacement. And as said
earlier the theory is very basic and discussed in High School physics. An earlier claim (by bassy) that the load is static is also wrong due to
varying degrees of pedestrian traffic on either side of the bridge and
possible wakes caused by boats traveling at higher speeds. I though bassy was structural design engineer. ;-) |
Mar 25
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| Kevin never has been the brightest bulb in the marquee |
P.
Mar 25
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| "Boatsafe for *kids*". LOL! I hope Kevin can grasp the basic concept of
displacement now. Our resident *structural design engineer* once again steps in itbig
time. ;-) |
Mar 25
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