Talk:Cable-stayed bridge

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The biggest, or longest bridge is the one that connects Rio with Antirrio in western Greece. It is supposed to be finished today 24/5/2004 as there are only 36 meters left for the completion of the project. It will be open to the public after the Olympic Games as it has to be tested first. The bridge is cable-stayed, 2 225 meters long with four pylons. The openings are 286,560,560,560,286 meters in length. There are two approach viaducts, 392 meters on the Rio side and 239 meters on the Antirrio side. The deck is 27.5 meters wide. The foundations of the pylons go down 65 meters beneath the seabed. The seabed needed reeinforcing as it consists of clay. It can withstand impact with a tanker of 180 000 tonnes travelling at 18 knots and wind speeds of 265 kilometers per hour (winds of such speeds fall within the hurricane category)The pylons rise up to 227 meters above the seabed.
I would like to add that to the article but have insufficient data. Moreover i don´t have enough time. If anyone cares to make an inquiry i would be more than happy to help.
Jerry
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Jerry, sounds like that bridge needs to be its own article.  Unrelatedly, I think it might be good to split the example bridges into parallel vs. radial, but I'm not sure which is which.  So far, the only radial one I know of is the Clark Bridge in Alton IL, but I don't think it has a WP entry yet. Ventura 06:00, 2004 Jul 10 (UTC)
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Leonard added "but the advantage of not requiring firm anchorages to resist the pull.".  I figure we should following this by saying something like "For this reason cable-stayed bridges are often used when one or both ends of the gap to be spanned ends in an elevated causeway"?  (or something like that) -- Finlay McWalter |  Talk 23:59, 4 Aug 2004 (UTC)

message: Should there be a section added to list and define parts of a cable-stayed bridge?  A short list to start would be
* main span,
* side span/back span,
* tower/pylon,
* anchor pier (both counterweight and tension),
* intermediate piers in the back spans,
* stay cables (including those continuous through a saddle in the tower), and
* anchorages.
I think this would be a helpful part of the article. - SCgatorFan 03:12, 24 May 2007 (UTC)
replies: text: I think it would be best as a diagram. I'd be happy to draw up a hand sketch if someone else has the technology to turn it into a computer-drawn diagram. -- Kvetner 08:39, 25 May 2007 (UTC)
thread_title:  Add a section to define bridge parts? 

message: An edit on 27 June 2007 revised the history section to say that the Donzere-Mondragon (France) Bridge was the first modern cable-stayed bridge.  It also added a picture.  Looking at the picture, I see an extradosed bridge.  The towers are short and the cables are less than 45 degrees (meaning that they impart more horizontal force than vertical support).  I think that either a refernce is needed or the statement needs to be revised.  Is the Donzere-Mondragon a modern cable-stayed bridge? - SCgatorFan 14:40, 30 June 2007 (UTC)
replies: text: I'll do a bit of a book search when I get a moment. It isn't mentioned in Walther's book "Cable-stayed bridges", which describes the Stromsund bridge as "the first modern steel cable stayed bridge". From that, and looking at structurae, I'd guess that the Donzere-Mondragon bridge could be the first modern concrete cable stayed bridge. I don't think the cable angle is entirely relevant - one of the features of an extradosed bridge is that essentially it's a post-tensioned bridge in which the post-tensioning cables are brought above the line of the deck (hence the term "extrados", normally referring to the top surface of an arch bridge, but here the top surface of any bridge). While this might be true of Donzere-Mondragon, it's only a subset of the cable-stayed bridge type. I'll report back once I've looked through some other sources. -- Kvetner 12:01, 4 July 2007 (UTC)
replies: text: I've done some brief research and updated the history section accordingly. There's lots more I could add if I get time, but that will do for now. -- Kvetner 21:36, 6 July 2007 (UTC)
thread_title:  First cable-stayed bridge 

message: Scgatorfan removed my additions about the Bluff Dale, Texas, bridge being the first US cable-stayed bridge, making reference to HAER drawing #2 to support his position. I've undone his change. Without any intent to be confrontational, if it's not cable-stayed, what is it? It's not a suspension bridge formed from or hanging from a catenary rope, cable, or chain and it's clearly not a beam, cantilever, arch, or truss bridge.  While the angles of the support cables are low, it doesn't have the beam/girder deck needed to make it an extradosed bridge.  That could, however, have very well have been the reason the Howe trusses were added along the top of the deck, as shown in the HAER drawings, but according to the HAER notes the bridge was in service for 9 years before that was done and the original deck design was clearly not intended to have any vertical stiffness on its own.  To say that it wasn't a cable-stayed bridge in its original design and during its first 9 years of service, at least, seems to be splitting hairs.  I'd welcome others' thoughts on the matter. TransporterMan 17:04, 28 August 2007 (UTC)
replies: text: Found the ruins of a slightly older Runyon cable stayed bridge in HAER and boldly added a reference to it.TransporterMan (talk) 16:58, 22 October 2009 (UTC)
thread_title:  First US cable-stayed bridge 

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thread_title: Fair use rationale for Image:Denver milennium bridge5.jpg

message: Hello, could anyone add information about that bridge  to this article? It's quite an unusual structure and the highest in Europe (since it's opened today). I'm not an engineer or an architect, so I have no idea how to describe it.
There are also some good photos of it here: http://russos.livejournal.com/409954.html // vh16ru talk 17:24, 27 December 2007 (UTC)
thread_title:  Zhivopisny Bridge 

message: I am removing this recent add to "Notable cable-stayed bridges" by :  It is not the longest bridge in Europe, nor even the longest cable-stayed span.  The Severn is the longest river in the U.K., maybe there is some confusion.  Anyway, if you think it is notable enough for this list, please explain. Colfer2 (talk) 05:38, 11 March 2008 (UTC)
thread_title:  Second Severn Crossing 

message: Ada Bridge must be included in this list, as after its completion, it will be the longest single-pylon cable bridge in the world. --WhiteWriter speaks 16:26, 1 May 2011 (UTC)
thread_title:  Longest Single-Pylon Cable Bridge 

message: I've added coordinates for a few of the historic bridges which do not have their own articles. If articles are written for these bridges the coordinates should be included there, the articles linked here, and the coordinates given here removed. Regards, TransporterMan (TALK) 18:59, 7 March 2016 (UTC)
thread_title:  Coordinates 

message: Seems like a section on ice dropping from cable stays ought to be included, as it is apparently a hazard with this design in relevant climates, that still gets overlooked, or at least is not satisfactorily solved: https://www.wired.com/2012/12/port-mann-bridge-ice/ ; https://www.newcivilengineer.com/world-view/bridge-brilliance-falling-ice/10009470.article 172.103.138.179 (talk)-just an interested wiki reader  —Preceding undated comment added 12:32, 19 September 2018 (UTC)
thread_title:  Ice dropping on deck of cable-stayed bridges 

message: This is an economically vital link for Delaware, the Philadelphia metropolitan region, and the Delmarva Peninsula. Distribution of goods and people to Dover and resort areas is improved as a result of the existence of the highway with the cable-stayed bridge. At this moment the US 13 bridge over the Chesapeake & Delaware Canal is closed for repairs and the Korean War Vets highway provides a nearby practical alternative. Heff01 (talk) 07:19, 15 February 2019 (UTC)
replies: text: I’d argue that since this article is about a kind of bridge, that notability should not turn on what the bridge accomplishes for the area it serves. The fact that it does what you say doesn’t turn on what kind of bridge it is. It may be notable for those things, but notability isn’t inherited and every bridge is important in that way: if the bridge doesn’t do useful stuff, they wouldn’t spend the millions of dollars and go to all the trouble it takes to build it. Frankly, I can think of some exceptions to this argument (if this was the first bridge between Japan and North America, for example) but this is just a local - and temporary - effect. Regards, TransporterMan (TALK) 14:28, 16 February 2019 (UTC)
thread_title:  Senator Roth Bridge, Delaware, USA 

message: It is written on the "Ruskky Island" page that this is the second longest, when I click the link to this page it says longest  — Preceding unsigned comment added by 2001:56B:DCB1:5700:9496:4FFC:F5D1:89F1 (talk) 20:45, 16 March 2022 (UTC)
replies: text: What are you talking about? Russky Bridge says "The bridge to Russky Island is the world's longest cable-stayed bridge". Meters (talk) 20:58, 16 March 2022 (UTC)
thread_title:  Ruskky Island bridge

message: Shouldn't under-deck cable stay bridges be included within this article? 81.103.233.247 (talk) 18:28, 11 September 2023 (UTC)
replies: text: Probably not, as they're too different as a structural type, but they should be mentioned here and redirected appropriately (even to a REDLINK). They operate by tension and they have a linguistic connection, but in terms of overall bridge structures they're more like a truss than any suspension bridge. Andy Dingley (talk) 19:18, 11 September 2023 (UTC)
thread_title:  Missing bridge type.