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I'm not locked in here with you, you are locked in here with me.
I'm not locked in here with you, you are locked in here with me.
There is no 'H' in Aych, you know that don't you? ~ Wife
Turns out there is an H in Haych! ~ Sporky
Bit of trading feedback here.
Always in these threads unqualified people start puffing themselves up to demonstrate how much smarter they are than the professionals who are there. It's like a weird desperation to be in the starring role a disaster that's killed people.
Your claim that the structural impact was that the bridge had fallen over was proof enough that you'd not thought for a moment before posting.
Next phase is usually regurgitation of vaguely technical sounding stuff from news reports, with comments like "any fool worth his salt will tell you you can't use unthermigated yonce-concrete to support a three-span fibble-bridge over tidal waters!", or "I see the BBC doesn't have a chartered civil engineer with any real experience in soil compaction void ratios on its staff!".
This sort of ghoulish nonsense should be safely locked away in NP&E where the real experts in every subject under the sun (cue" actually, I read a very interesting article about the inside of the sun three years ago so am something of a specialist") hold court.
I do hope this bridge disaster doesn't become an idea for the name of a band.
One for the forum long termers.
When I was at university, the sports centre / gym was basically only a basement, and the roof of it was only a metre or so above street level. I was told that it was originally planned to have more floors on top, including a swimming pool. The problem was that it was designed by the Civil Engineering department and they forgot to allow for the weight of the water.
That's fair enough, but they could have pilot boats steering them in.
That factor of safety is typically at least 3; it is often much higher. The fixings we use for projectors (which hurt if they fall on you) are rated for five to ten times (depending largely on the height above the floor) the anticipated maximum load, and that is not just the weight of the projector and its mount.
In the UK, the CDM regulations make me and every other designer in the built environment personally responsible for the safety of what we design past a certain project size (which is pretty small). They cover use, maintenance, and the initial installation - every stage has to be provably safe.
But there are a number of questions to be asked.
Why have a bridge spanning a river or inlet that is directly in the path of a major shipping port?
The bridge should never have been built there or the port infrastructure should be on the 'outside' (the seaside) of the bridge.
Were the workers on the bridge wearing any floatation aids?
A ferry system can be setup fairly quickly to move people and goods across the river/sea inlet. How quickly can the main channel be cleared to allow shipping to resume (pending a decision on what to do about a permanent river/sea inlet crossing)?
Nil Satis Nisi Optimum