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https://www.miamiherald.com/news/lo Four years after fatal collapse, Florida unveils design for 3
- Thread starter kevinsnn
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Making those spindly towers work without stay(s) on the other side might be a bit difficult. But then, it's an artist's rendering, and they didn't say how far along it is in design. I'm guessing it hasn't been through much rigorous engineering yet. After all, those girders are really shallow to span across by themselves. Now if they went with a truss the full depth of the walkway and aligned diagonal web members with the cables, then I could see it working with 'fake' cable stays.
phamENG said:
The article states that they are using steel girders. From the scale of the people in the rendering it looks like the girders are just about the correct span to depth ratio. They could also be doing a thru girder on either side and have the deck supported by floor beams. Like a railroad bridge.
The "cable stay" towers have a really long unsupported length that is going to be subject to a large bending load if those "stays" are functional.
Prefabricated steel trusses meant for use as pedestrian bridges are cheap and ubiquitous. There is no need to reinvent the wheel. Especially if your new invention is ugly.
Philip E. Garrett, P.E.
Structural Engineer
The cable stays were supposed to be decorative, but they were capable of sustaining a huge load. They weren't detailed like they were decorative.
Rather than think climate change and the corona virus as science, think of it as the wrath of God. Do you feel any better?
-Dik
Rather than think climate change and the corona virus as science, think of it as the wrath of God. Do you feel any better?
-Dik
That new bridge concept is hardly new. There are several existing examples of single sided cable stayed footbridges with real structural stays and real inclined towers. The architectural rendering does look a bit spindly, but hopefully the structural design will sort that out this time.
I don't understand the need for this bridge, or the one that fell down. There is an intersection right there, with stop lights, crosswalks, and walk signals. Are college students challenged by this concept?
Rather than an un-needed bridge, how about tuition rebates? "Say, college student. Would you rather have a bridge, or money in your pocket?"
Does the word "hubris" apply to this project?
spsalso
Rather than an un-needed bridge, how about tuition rebates? "Say, college student. Would you rather have a bridge, or money in your pocket?"
Does the word "hubris" apply to this project?
spsalso
I believe the need such as it is, is to boost the value of an upmarket housing development the university is undertaking on the Sweetwater side of the road. A nice short traffic-free and weatherproof stroll from home to campus, etc, with a flagship structure to put on the brochures. Or at least it was.
LittleInch
Petroleum
Dik, FIGG took a large hit for it and I suspect are still being sued.
Not sure about other sanctions against the firm or individuals.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
Not sure about other sanctions against the firm or individuals.
https://panthernow.com/2022/01/31/final-settlement-marks-the-end-of-fiu-bridge-collapse-litigation/
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
LittleInch
Petroleum
spsalso said:
err yes. The might get wet when it rains and they then don't have to look up from their phones / devices when trying to cross an 8 lane highway...
Some also don't recognise green = walk, red = stop.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
I saw a picture of the new bridge design. Imagine, both uninspired and pretentious at the same time.
Wouldn't it be neat if the top of the tower had a giant counterweight suspended from the top? A simple cable pair anchored in the ground would certainly work, but it doesn't have the drama of walking under a multi-ton counterweight.
This being Florida, perhaps the giant concrete counterweight block should be replaced by a giant tank of water. Then students can use it as a pool! You could even have a glass bottom!!!
spsalso
Wouldn't it be neat if the top of the tower had a giant counterweight suspended from the top? A simple cable pair anchored in the ground would certainly work, but it doesn't have the drama of walking under a multi-ton counterweight.
This being Florida, perhaps the giant concrete counterweight block should be replaced by a giant tank of water. Then students can use it as a pool! You could even have a glass bottom!!!
spsalso
LittleInch
Petroleum
And open up the "Of this type" section.
But I agree, this looks like a poor copy.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
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