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Megatalls Discussions of projects under construction at least 600m/2,000 ft tall.



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Old May 27th, 2016, 07:59 PM   #121
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To build such a space elevator, the force sustained would put a stress of around 98% of the strength of a carbon-carbon bond - ie this would be on the outer limits of theoretical material science just to support itself. The centre-of-mass would be at an orbit of 38,000kms - geostationary orbit being the only orbit usable for this. The force needed to carry meaningful loads upwards, as well as resist vibrations and oscillations, would likely cause the material to be overloaded. It's a nice idea, but I think it will stay firmly in the realm of science fiction.
Agreed. I'm certain by the time we have the technology to build something like that, more than likely we will have developed some form of heavy lift propulsion beyond our simple rocket systems of today. Rockets are still just "giant firecrackers". It's a thousand year old concept made from modern materials. That's why space flight is still so dangerous, and difficult today. Once someone discovers/invents some other form of propulsion that is more advanced than essentially, "burning a fire"aka rocket power, going to space will become routine, and building a space elevator, pointless.

I think the tallest structure on earth will still be a building. But there will be a limit. I think one building will become the tallest ever, with none taller. Maybe a few kilometers tall, but not even as tall as Everest. Oxygen is too thin that high, and very cold. What would be the point of such a tall building? Ultimately it has to make economic and logistical sense. Even if building it becomes cheap, the logistics of moving around in it would become an issue. In my opinion at the 1 and 2km mark, we're getting to the highest point buildings will ever reach. Beyond that it becomes more of a problem than a solution. And all buildings are "solutions" on how to "house" our "industry".
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Old May 27th, 2016, 08:08 PM   #122
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Why, instead of building a huge solar park, don't they build a huge solar updraft tower in Dubai? Give it a bit of a neat design and an observation deck on top and you'll have another tourist-drawing icon in addition to solar energy.
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Old May 27th, 2016, 11:25 PM   #123
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Why, instead of building a huge solar park, don't they build a huge solar updraft tower in Dubai? Give it a bit of a neat design and an observation deck on top and you'll have another tourist-drawing icon in addition to solar energy.
Well I bet you didn't expect the following

Status: Under Construction

Location: Dubai

Awards:
- Sustainable Project of the Year, The Middle East Architect Awards, 2014
- Best Future Leisure and Tourism building design at the Cityscape Awards for Emerging Markets, 2014
- Royal Scottish Academy Architecture Prize for outstanding work, 2014

The award winning design for the new Solar Innovation Centre celebrates the unique identity of the Sheikh Mohammed bin Rashid Al Maktoum Solar Park reinforcing sense of place for green Dubai as a leading example of sustainable development both in the region and internationally. A beautiful organic form from the outside, The Solar Innovation Centre inspires curiosity and with a stimulating free flowing multi level space internally, encourages free thought and exploration. At the same time it has a simple and economical building structure based on the principles of ‘divine geometry’ seen in Islamic art and the dimensions of the Sun, Venus and the Earth in Phi relationship which form a Golden Triangle. The building not only uses green design but it is seen to incorporate green design. It explains how the various technologies within the park work in a simple and powerful way. As well as integrating solar powered technology, the building maximises shading, insulation, smart management and recycling systems.









http://kettle.co/solar-innovation-centre/
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Old May 28th, 2016, 07:34 AM   #124
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Cool!
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Old May 28th, 2016, 10:58 AM   #125
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Where exactly is it located?
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Old May 28th, 2016, 11:30 AM   #126
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Where exactly is it located?
Middle of nowhere http://wikimapia.org/#lang=en&lat=24...74012&z=13&m=b
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Old May 28th, 2016, 01:54 PM   #127
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oh wow, so the renders are pretty misleading, the skyline will not be that big in the background. it's 40km away
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Old May 28th, 2016, 02:08 PM   #128
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Hey that almost goes in the direction of an idea I once had (I wish I was a rich company) of making something like Silicon Valley but for renewable energy, with a university/campus and demonstrations of all the technologies that are either already in use or in earlier stages. I wish one day I can realise some of my ideas.
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Old June 8th, 2016, 12:37 PM   #129
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A replacement of Chicago Spire! Please move to Megatalls section.

http://www.skyscrapercity.com/showpo...ostcount=10480
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Old June 9th, 2016, 01:58 PM   #130
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I hope you're right and we will witness a tower with more than 2000m.
There's one candidate that will surpass every future tower due to it's purpose:
the space elevator with 35,800km

Today it's still a vision but as you said with new materials (carbon nanotubes) it could be true someday in the future.
...But wouldn't it be frustrating when you realise you left your front door key in the car in the basement car park ?
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Old June 10th, 2016, 10:26 PM   #131
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Looks like Sky City is now cancelled.

http://shanghaiist.com/2016/06/10/ch...t_building.php
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Old June 12th, 2016, 07:01 AM   #132
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That's a pity

Hopefully they'll try ro build it in another location.
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Old June 12th, 2016, 09:25 AM   #133
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The Illinois (AKA the mile high tower) was the first real conceived and proposed megatall. Now that materials and engineering technology would make it possible, wouldn't it be great if this tower were actually built? *dreams* I found these by while researching the original proposal by Wright:


It looks so similar to Jeddah Tower.
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Old June 13th, 2016, 02:15 PM   #134
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To think computers were designed in olden times when landscape screen format was considered more useful than portrait... : (
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Old June 13th, 2016, 04:44 PM   #135
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To think computers were designed in olden times when landscape screen format was considered more useful than portrait... : (
it fits on my screen...
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Old June 14th, 2016, 01:29 AM   #136
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How tall is the one that looks like a drill bit?
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Old June 14th, 2016, 05:33 AM   #137
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its getting closer with the technology we have today.
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Old June 15th, 2016, 11:15 AM   #138
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3d-printing would accelerate megatall construction very much. This is the future.
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Old July 12th, 2016, 08:47 AM   #139
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3d-printing would accelerate megatall construction very much. This is the future.
What are your opinions, gentlemen?
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Old July 12th, 2016, 09:23 AM   #140
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3D printing I don't think you can use for the load-bearing materials (supercolumns and such) because they need a very special kind of strength I don't think you can achieve with that method, but for all other parts I can see it being useful. I could imagine Broad (the Sky City company) getting into 3D printed modules for example.
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