Talk:Column

Wiki Education Foundation-supported course assignment

This article was the subject of a Wiki Education Foundation-supported course assignment, between 29 August 2018 and 22 December 2018. Further details are available on the course page. Student editor(s): Jeremyseti. Peer reviewers: Nwolz, Lil Beastea.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 18:05, 16 January 2022 (UTC)

Equations 2 & 3

I moved the phrase "where Et = tangent modulus at the stress Fcr" from equation 3 to equation two, as it appeared to reference 2 & not 3. I also question the accuracy of equation 3, as the units appear inconsistent. Perhaps I'm missing something. 173.30.66.55 (talk) 00:48, 24 September 2018 (UTC)

Comments

who on earth would spell the word column. with two ll's for instance collumn. are they stupid?

It might be an idea to briefly mention the expression "5th Column". I did know at one time which war engendered this, but it's slipped my mind. -- Tarquin

I'm not so sure, but I remember something about Spain and a Madrid's siege: there should have been 4 columns outside and a 5th one inside the town in which some false soldiers had infiltrated. Was it Spanish civil war (36-39)? --Gianfranco

I did a google, and what I've found says the same. There's also a bizarre tale of freemasons on the same page... -- user:Tarquin

• http://www.theanswerbank.co.uk/DisplayAnswers.go;jsessionid=aaa_uhL-U14Aohyk-Z9sK?question_id=5311&category_id=12&index=15
• http://history.acusd.edu/gen/WW2Timeline/Prelude07.html

The grammar is poor in these sentences: "Column elements are considered to be massive if minimal side dimension is equal or more than 400 mm. Massive columns have ability to increase concrete strength during long time period (even during exploitation period). Taking into account possible loads onto structure increase in future (and even threat of progressive failure, terroristic attacks, explosions etc.) massive columns have advantage comparing with not ones. A little economy today has no sense as usual for future. Moreover relatively small sections are not technological for reinforced structures during their production. Balance between economy, mass of structures and so called "sustainable" construction is necessary." — Preceding unsigned comment added by 130.167.202.198 (talk) 20:45, 12 December 2013 (UTC)

The Classical orders

There more anicent classical orders that not Greco-Roman, Egyptains used many different coloumns. Persians used horses, & bulls are their pillars. Capitals in Isreal where common with a triangle in center, two flower like arms, resembling a lily, with two dots above the triange. —Preceding unsigned comment added by 72.38.211.144 (talk) 04:12, 7 November 2007 (UTC)

"The Roman author Vitruvius, relying on the writings (now lost) of Greek authors, tells us that the ancient Greeks believed that their Doric order developed from techniques for building in wood in which the earlier smoothed tree trunk was replaced by a dead antelope." - what the fuck?? is that vandalism, or is that a really badly worded sentence? did the greeks really stop making their columns out of wood and start making them out of bovine skeletons? sure that wasn't the goths?? -- naught101 11:56, 19 October 2006 (UTC), like a kindergarten chield... STUPID! I think they are stupid, spell the word collumn

Eurocentrism

Last I checked, the Mediterraneans weren't the only people to independently develop columns.. perhaps some mention of American columns (Canadian totems, Toltec temples, etc..), Asian columns (Buddhist temples, etc..), and Austronesian columns (Easter island?) is called for? - Eric 19:27, 19 January 2007 (UTC)

Equilibrium, instability, and loads

The formulas are messed up. The first load formula does not even have units of force. Also, below is a reference to I (the second moment of inertia) which is absent from the formula. Finally, that formula seems to contradict a similar formula on the buckling page. --CelestialfireAlex 06:32, 5 June 2007 (UTC)

Circular cross-section

Is the current definition given at Pillar correct? It (is trying to) suggest that columns are generally circular in cross-section, and that pillars are anything else. Thanks. --Quiddity 17:06, 17 October 2007 (UTC)

Deflection

Does anyone know how to find the horizontal deflection as a function of axial load and shear stress?? an equation I think might be right is

Delta = (2S/W)( (sqrt(EI/W))*tan( (sqrt(W/EI))*(L/2) ) - L/2 )

where Delta is horizontal deflection at the top of the beam, S = shear force applied at top, W = axial load, L = column length, EI = Flexural rigidity, and the beam is constrained to no rotation at the top or bottom, (only horizontal deflection at the top)

help anyone? —Preceding unsigned comment added by 129.169.10.56 (talk) 7 February 2008

Image Available

Perhaps of some use to an involved editor. Cheers. Saffron Blaze (talk) 22:27, 7 April 2014 (UTC)

Side Apollo Temple Portrait

Strange first image

The first sentence of the article states: "Column or pillar in architecture and structural engineering is a structural element that transmits, through compression, the weight of the structure above to other structural elements below. In other words, a column is a compression member.", and the first image shows columns that have no structure above...--Superzoulou (talk) 11:18, 9 May 2014 (UTC)

The image shows what very little remains of the structure above, all between the columns. Peter Horn User talk 03:55, 14 December 2021 (UTC)

transport

You need to talk about transporting columns. For example, Mary Beard glibly talks of "loading them [the solid ones in front of the Pantheon] onto camels and donkeys" Oops, no! Mons Porphyrites in Egypt, where the Romans got their porphyry, still has the ruts from the column carts, a more modern example of which, I'm told, can be seen in a museum in Lisbon. Wheels 16 feet in diameter, track (i.e. width) 8 feet - column maybe 6 feet in diameter slung beneath the axles.Vince Calegon 10:30, 20 February 2018 (UTC)

Modern columns?

It seems the article focuses mainly on columns of the classical orders which make me think of it more as a history article then a civil engineering article, so i'm just wondering why there isn't a section for modern columns of the type you still see in plenty of places (usually with a square cross section) and a lack of pictures of modern columns aswell.

OGWFP (talk) 18:57, 10 November 2020 (UTC)

A new section should also mention the use of structural steel H-beams as columns. Peter Horn User talk 03:42, 14 December 2021 (UTC)

See comments above. Peter Horn User talk 03:46, 14 December 2021 (UTC)

Not to mention the reinforced concrete columns of modern buildings.Peter Horn User talk 14:41, 14 December 2021 (UTC) Peter Horn User talk 02:44, 15 December 2021 (UTC)

Bookkeeping

Tribal balance 41.138.72.11 (talk) 10:59, 18 June 2022 (UTC)