war Posted December 22, 2017 Share #1 Posted December 22, 2017 Advertisement (gone after registration) Firth of Forth Railway Bridge Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Q 6 Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! Q ' data-webShareUrl='https://www.l-camera-forum.com/topic/280132-extraordinary-queensferry-bridge-1890/?do=findComment&comment=3423757'>More sharing options...
Advertisement Posted December 22, 2017 Posted December 22, 2017 Hi war, Take a look here Extraordinary Queensferry Bridge 1890. I'm sure you'll find what you were looking for!
HighlandK Posted December 22, 2017 Share #2 Posted December 22, 2017 Very nice and the glory of this location is that side by side you have wonderful examples of 19th, 20th and 21st Century bridge building excellence. Link to post Share on other sites More sharing options...
jdlaing Posted December 22, 2017 Share #3 Posted December 22, 2017 Nice ones. Another Structural Engineer gone berserk. Link to post Share on other sites More sharing options...
war Posted December 22, 2017 Author Share #4 Posted December 22, 2017 Very nice and the glory of this location is that side by side you have wonderful examples of 19th, 20th and 21st Century bridge building excellence. Thanks. All three are exemplary structures but this cantilever is my favorite, way ahead of its time. The Falkirk Wheel is next on my list. Link to post Share on other sites More sharing options...
war Posted December 22, 2017 Author Share #5 Posted December 22, 2017 Nice ones. Another Structural Engineer gone berserk. Thanks. These engineers were the rocket scientists of their day, breaking new ground. Link to post Share on other sites More sharing options...
Graham (G4FUJ) Posted December 23, 2017 Share #6 Posted December 23, 2017 The Falkirk Wheel is next on my list. Be sure to take a ride on the wheel in one of the trip boats 1 Link to post Share on other sites More sharing options...
stuny Posted December 23, 2017 Share #7 Posted December 23, 2017 Advertisement (gone after registration) A very nice set. 1 Link to post Share on other sites More sharing options...
StS Posted December 23, 2017 Share #8 Posted December 23, 2017 Very impressive perspective. Nice ones.Another Structural Engineer gone berserk. I would assume the design is strongly influenced by the back then recent Tay Bridge disaster of 1879, so the engineers apparently stayed on the very safe side. Stefan 1 Link to post Share on other sites More sharing options...
Bill W Posted December 28, 2017 Share #9 Posted December 28, 2017 Very impressive perspective. I would assume the design is strongly influenced by the back then recent Tay Bridge disaster of 1879, so the engineers apparently stayed on the very safe side. Stefan Just read about the Tay Bridge disaster and it happened on this day in 1879. Nice images. Link to post Share on other sites More sharing options...
war Posted December 28, 2017 Author Share #10 Posted December 28, 2017 Just read about the Tay Bridge disaster and it happened on this day in 1879. Nice images. Thank you. Quite a coincidence about the date 138 years later. The engineer that designed the Tay bridge almost got to do the Forth as well, lucky he was fired in time or we might be looking at something quite different. (or perhaps another disaster) Link to post Share on other sites More sharing options...
Bill W Posted December 28, 2017 Share #11 Posted December 28, 2017 He seemed to not account for "wind loading" or he just disregarded it. 1 Link to post Share on other sites More sharing options...
war Posted January 2, 2018 Author Share #12 Posted January 2, 2018 Very nice and the glory of this location is that side by side you have wonderful examples of 19th, 20th and 21st Century bridge building excellence. I found an image of all three bridges over the Forth, please excuse the specks on the sensor. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! 5 Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/280132-extraordinary-queensferry-bridge-1890/?do=findComment&comment=3431202'>More sharing options...
Bill W Posted January 2, 2018 Share #13 Posted January 2, 2018 Pretty cool, we drove over the vehicle bridge last September. Some view. Link to post Share on other sites More sharing options...
AZach Posted January 2, 2018 Share #14 Posted January 2, 2018 A great picture and example of history of architecture - art and engineering. Link to post Share on other sites More sharing options...
HighlandK Posted January 3, 2018 Share #15 Posted January 3, 2018 Pretty cool, we drove over the vehicle bridge last September. Some view. And you can now cross it legally at 70mph - slow driving tourists permitting :-) 1 Link to post Share on other sites More sharing options...
peterbengtson Posted January 11, 2018 Share #16 Posted January 11, 2018 (edited) He seemed to not account for "wind loading" or he just disregarded it. There were also signicant structural voids in the casting of the wrought iron girders that were filled in with a wax like substance and painted over to conceal the defects. The best book I have read about this is "The High Girders" by John Preble. On a related note about wind loading in a much more recent setting read this article about the Citibank building in NYC. https://www.newyorker.com/magazine/1995/05/29/the-fifty-nine-story-crisis Edited January 11, 2018 by peterbengtson 1 Link to post Share on other sites More sharing options...
war Posted January 11, 2018 Author Share #17 Posted January 11, 2018 There were also signicant structural voids in the casting of the wrought iron girders that were filled in with a wax like substance and painted over to conceal the defects. The best book I have read about this is "The High Girders" by John Preble. On a related note about wind loading in a much more recent setting read this article about the Citibank building in NYC. https://www.newyorker.com/magazine/1995/05/29/the-fifty-nine-story-crisis Yes as with most structural failures multiple factors were involved and Bouch should not have had to accept full responsibility for the disaster. When you consider the number of significant and spectacular groundbreaking structures that exist around us failures are very rare. For those interested in this sort of thing I would recommend "Why buildings Fall Down" by Mario Salvadori. Lots of easy to understand diagrams. Here's another photo of the Forth Bridge (still standing) Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! 1 Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/280132-extraordinary-queensferry-bridge-1890/?do=findComment&comment=3437833'>More sharing options...
jimofnyc Posted January 12, 2018 Share #18 Posted January 12, 2018 Correct me if I am wrong but didn't the first design collapse causing much embarrassment. This bridge is the second, more innovative and stronger. 1 Link to post Share on other sites More sharing options...
Graham (G4FUJ) Posted January 12, 2018 Share #19 Posted January 12, 2018 I think the first design was not built (a suspension bridge design by Thomas Bouch). The reason for this was the collapse of the Tay bridge by the same gentleman. The second is of a cantilever design. "The bridge was designed by Sir John Fowler and Sir Benjamin Baker and built by Sir William Arrol & Co, a Glasgow-based company. Much credit, however, has been given to Sir Benjamin Baker and his co-worker Allan Stewart for designing and supervising the construction work." source: www.railway-technology.com 1 Link to post Share on other sites More sharing options...
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