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Old October 10th, 2010, 08:12 PM   #1201
PortoNuts
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by sirstan74.





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Old October 11th, 2010, 01:19 AM   #1202
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Quote:
Originally Posted by PortoNuts View Post
I think this one differs from the Shard, it has a jump form core.
Ok! thanks for the answer.
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Old October 12th, 2010, 05:41 PM   #1203
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the entrance is cool
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Old October 12th, 2010, 10:55 PM   #1204
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rising again..just need some positive news of a pre let so the finance is released so it can continue upwards














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Old October 13th, 2010, 01:48 AM   #1205
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The construction in London has been amazing.
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Old October 13th, 2010, 03:37 AM   #1206
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Very detailed story about the 4 FAVS.http://www.khl.com/magazines/interna...essel-reports/
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Old October 13th, 2010, 03:48 AM   #1207
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To embrace my quarter British blood, it's about bloody time this thing started rising!
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Old October 13th, 2010, 02:51 PM   #1208
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Yay there's the core. Looks huge with all those cranes
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Old October 13th, 2010, 08:33 PM   #1209
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Quote:
Engineering The Pinnacle



The Pinnacle is an under construction tower in London, 287.9 metres in height that pushes engineering almost to the limit thanks to the engineering from Arup who confronted one of the engineering challenges of any building - getting it to stand up.

In the case of the Pinnacle it employs structural expressionism but if such a structure was fully crossbraced from A to Z then there would be 920 such reinforcements along the perimeter of the tower, a number that would be hugely inefficient for several reasons.

Firstly there would be no need for such heavy engineering and extravagant use of material, and secondly the greater the structure the more internal space it takes up thus to fully crossbrace the building, a significant amount of lettable offices would be sacrificed. As a result it was decided by the engineers to use only as much as was required, the most efficient approach rather than the standard one.

The areas of the building that receive the most structural stress are the north-east and south west corners. These are fully braced and will take the greatest amount of prevailing wind as it approaches the building blowing to the south-east. It is here that the façade curves in on itself too creating the wrapped look, something that helps improve the aerodynamic profile of the tower.

When stresses do arise on a section that isn't braced they travel through the building until they reach a part that is with the horizontal load transferred to the floorplates. As the bracing then moves, this has too is dispelled by the floors and structural beams that help stop it from swaying and instead transfer the forces to the concrete core. The concrete core is also essential for keeping everything standing whilst it is built and pieces of the structure are missing.

Tall buildings by their very nature sway rather than stay totally rigid so for example the Empire State Building can move by quarter of an inch either side. Further help comes from the oil-filled dampeners that are fitted to the bracing that help absorb movement and keep the tower stiff enough for the cladding to stay stationary rather than clatter about.

As the building rises it appears to spiral with a collar around it giving it the name Helter Skelter. Unfortunately this means that there are certain areas on floors 44 to 51 that lack structural support along the perimeter meaning additional columns appear where needed connected to transfer beams in the floorplates.

Above floor 62 is the 42 metres of spire that is light enough to be structurally supported by the spiraling collar. A combination of the collar and the central column that rises all the way up to the pinnacle help create a compression ring and transfer the weight and stresses on to the main building frame.

No matter how inventive the engineer, such a structure would never have been possible to design before computer modeling allowed engineers to look at a project in such detail as it would have been impossible to identify just where the structure needs to be, hence the need for regular building forms. With designers now able to finally leave these behind buildings and floor shapes can become profitable in ways that were once impossible, and as a result actually be constructed.
http://www.skyscrapernews.com/news.php?ref=2670
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Old October 13th, 2010, 10:28 PM   #1210
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Cool story bro
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Old October 16th, 2010, 02:22 AM   #1211
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Thanks.

Quote:
Schroders talks on Helter-Skelter lease

Developers of The Pinnacle, which will become the City of London's tallest office block when it is completed next year, are in talks to lease up to a quarter of the building to fund management giant Schroders.

The building, which has been dubbed The Helter-Skelter because of its spiral design, is on Broadgate and will tower 63-storeys high and have almost 1 million square feet of space.
http://www.thisislondon.co.uk/standa...elter-lease.do
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Old October 17th, 2010, 09:13 AM   #1212
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Correct me if I'm wrong but wasn't the tower due to be completed in mid-2012?
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Old October 17th, 2010, 02:40 PM   #1213
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"when it is completed next year" That's a bit wrong. 2013 has always been the date when I thought it would be completed by.
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Old October 17th, 2010, 05:10 PM   #1214
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Hum... The core/structure will be pretty much much complete by Christmas 2011 so... I get what the man says.
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Old October 17th, 2010, 07:51 PM   #1215
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I really don't see the structure being completed in one year. someone a few months back created a mock up of how the building would look come the London Olympics and it appeared to be 3/4 completed...that looked pretty accurate to me
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Old October 18th, 2010, 05:17 PM   #1216
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At last the core is rising!!!
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Old October 18th, 2010, 05:20 PM   #1217
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Quote:
Originally Posted by Buyckske Ruben View Post
At last the core is rising!!!
level 3 now, I think it is
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Old October 18th, 2010, 09:21 PM   #1218
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Old October 21st, 2010, 11:29 PM   #1219
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by SE9.

[IMG]http://i56.************/w06iwp.jpg[/IMG]

[IMG]http://i52.************/v3n445.jpg[/IMG]

[IMG]http://i54.************/2eurh8m.jpg[/IMG]
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Old October 22nd, 2010, 01:08 PM   #1220
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Quote:
Originally Posted by PortoNuts View Post
by SE9.

[IMG]http://i56.************/w06iwp.jpg[/IMG]

[IMG]http://i52.************/v3n445.jpg[/IMG]

[IMG]http://i54.************/2eurh8m.jpg[/IMG]
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