yep...the only place where 17 and 11 are on the same bridge.... Oh well, cross at the Soo and go southNo one can since the road is closed!
Was that bridge built by any chance by Continental Construction from Boston? It sounds like Big Dig quality.I personally know a couple of people who have driven Roadsters across Canada, never mind Model S. It was made possible by the Sun Country charging network. So the premise of this thread title is wrong.
The failure of a brand new (open 42 days) bridge is startling. This is either a serious engineering error, or the engineers just learned something new.
LOL... I guess they're making the rings from concrete now? ;-)After the Tacoma Narrows collapse you would think that all bridges would be tested for aerodynamics. This gives more raw materials for engineering rings.
There would be steel rebar in the bridge. Although they are called iron rings they have generally been made from steel for a long time - since well before I got mine which was almost 30 years ago.LOL... I guess they're making the rings from concrete now?
Mine is actually stainless (not sure what grade - LOL), circa 1988. I think extracting the re-rod from the concrete would be more trouble than it's worth though.There would be steel rebar in the bridge. Although they are called iron rings they have generally been made from steel for a long time - since well before I got mine which was almost 30 years ago.
That's fantastic.... LOL. Would seem to suggest an issue with the cable stay design, or the connection at the end. You need to allow for live load on the bridge, but you don't want it springing up as it apparently did when unloaded!
True, but it makes for a better story. I wonder how many, if any, rings were actually made from the iron of the Quebec City bridge?Mine is actually stainless (not sure what grade - LOL), circa 1988. I think extracting the re-rod from the concrete would be more trouble than it's worth though.
Yes.... I wonder. It would be rather ironic if in fact the answer is 'none', and the story was simply told to build the legend. My guess is some of the bridge metal was tossed into the melting pot when the first batch was made. After that, who knows.
Zero. Pick any Canadian engineering school's undergrad website, they'll all tell you it's a myth.
By 1904, the southern half of the structure was taking shape. However, preliminary calculations made early in the planning stages were never properly checked when the design was finalized, and the actual weight of the bridge was far in excess of its carrying capacity. The dead load was too heavy. All went well until the bridge was nearing completion in the summer of 1907, when the QBRC site engineering team under Norman McLure began noticing increasing distortions of key structural members already in place.[SUP][/SUP]
McLure became increasingly concerned and wrote repeatedly to QBRC consulting engineer Theodore Cooper, who at first replied that the problems were minor. The Phoenix Bridge Company officials claimed that the beams must already have been bent before they were installed, but by August 27 it had become clear to McLure that this was wrong. A more experienced engineer might have telegraphed Cooper, but McLure wrote him a letter, and then went to New York to meet with him on August 29, 1907. Cooper then agreed that the issue was serious, and promptly telegraphed to the Phoenix Bridge Company: "Add no more load to bridge till after due consideration of facts." The two engineers then went to the Phoenix offices.[SUP][/SUP]
However, the message had not been passed on to Quebec before it was too late. Near quitting time that same afternoon, after four years of construction, the south arm and part of the central section of the bridge collapsed into the St. Lawrence River in just 15 seconds. Of the 86 workers on the bridge that day, 75 were killed and the rest were injured, making it the world's worst bridge construction disaster. Of these victims, 33 (some sources say 35) were Mohawk steelworkers from the Kahnawake reserve near Montreal; they were buried at Kahnawake under crosses made of steel beams.[SUP][/SUP]