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Doncram (talk | contribs)
Doncram (talk | contribs)
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[[File:Treasury of Atreus Mycenae.jpg|right|thumb|Entrance to Treasury of Atreus]]
[[File:Exterior view of the Treasury of Atreas - Dodwell Edward - 1834.jpg|right|thumb|1834 illustration in Edward Dodwell]]
I removed the following, at first because I was thinking it is not an example of a lintel and/or its stated weight is wrong (and, though it basically may be a valid example, I am keeping it out for now due to wondering about current sources and/or how it should be presented):{{blockquote|An example from the [[Mycenaean Greece]] cultural period (c. 1600 – 1100 BCE) is the [[Treasury of Atreus]] in [[Mycenae]], Greece. It weighs 120 tons, with approximate dimensions 8.3 × 5.2 × 1.2 m,<ref>{{cite book |title=A Classical and Topographical Tour Through Greece: During the Years |url=https://archive.org/details/aclassicalandto00dodwgoog |first=Edward |last=Dodwell |publisher=Rodwelland Martin |year=1819 }}</ref> one of the largest in the world.}}{{reflist-talk}}
First of all, I was not sure I believe a block of stone of dimensions 8.3 × 5.2 × 1.2 m would weigh that much. Maybe that would be a huge block of stone, like maybe that could weigh that much. But, are the dimensions of the relevant lintel (shown in photo at right) actually that large, or is the lintel there much smaller, perhaps 8.3 x 5.2 x 1.2 feet instead?
 
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::[https://www.concreteconstruction.net/business/producers/worlds-longest-concrete-beams-installed_o This 2014 article "WORLD’S LONGEST CONCRETE BEAMS INSTALLED" by Sharon J. Rehana] in or at "[[Concrete Construction]]" (a trade magazine? or just a website?), states "The longest prestressed concrete beams ever manufactured were successfully installed in the Netherlands. These huge box beams—223 feet long and 480,000 pounds—form the main span of the new bridge in Zuidhorn." Those would properly be termed lintels, I think. Convert lbs to tons: {{convert|480000|lb|ton}} . --Doncram ([[user talk:Doncram|talk]],[[Special:Contributions/Doncram|contribs]]) 06:03, 6 July 2023 (UTC)
 
::One natural application for very large concrete blocks I happen to know a very little about (because I largely developed the Wikipedia article) might be for [[aircraft bridge|aircraft taxiway bridges]].[https://www.aspirebridge.com/magazine/2008Spring/taxiway_spr08.pdf |this 2008 source cited in that article] describes large concrete box girder(s) (one one big one across 5 spans or more likely five separate ones?) at [[Sky Harbor Airport]] in Phoenix, Arizona: "The 406-ft-long, design-build project features five continuous spans of posttensioned concrete box girders. The bridge was designed to be 214 ft wide to meet the safety area requirement for Group V aircraft and to support a gross aircraft weight of 1.5 million lb using the wheel configurations for a Boeing 747-400." But there are not statements of the dimensions of concrete block(s) cast there, nor weight estimate(s). --Doncram ([[user talk:Doncram|talk]],[[Special:Contributions/Doncram|contribs]]) 06:18, 6 July 2023 (UTC)