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#1 Yesterday 15:15:24

SpaceNut: Administrator; From: New Hampshire; Registered: 2004-07-22; Posts: 30,201

Proposed Superdome construction in a Crater

tahanson43206 wrote:

For SpaceNut re discovery of Superdome construction images ...
Thanks for that impressive set of images!
They really add perspective to Calliban's Dome concept, although they do not show the use of locally sourced materials.
There is less need for all that iron if you build as Calliban has proposed. On the other hand, locally sourced iron is available on Mars, and Calliban has shown that ordinary cast iron can serve to handle compressive loads well.
Carbon steel can be made on Mars as well, if there is a need for stronger material.
Your discovery of those Superdome images sure does add a sense of reality to Calliban's proposal!
Can you persuade your AI friend to show your dome in Calliban's Crater?
(th)

SpaceNut wrote:

tahanson43206 I think that I captured all of your words to create a new topic with for the construction in the crater plan for the above image.
Become the champion for you thoughts to an end Please.
If you are planning use the dome images to show how you might build it.
I will delete this information once you create it.

My interest is inspired by Calliban's dome idea, which (as you must know) is about the size of the New Orleans Superdome.

Calliban's dome is about the size of the New Orleans Superdome. The Superdome is set up to handle a crowd of 73,000 people.
Calliban's dome will support a (nominal) population of 1000 residents and guests.
The major difference is that the Superdome is able to exchange air with the outside, and human waste with outside services.
Calliban's dome will need to handle human and animal waste immediately and without error for years on end.
I think that pyrolysis may be the best solution, but RobertDyck has suggested alternative methods, and there may be others to consider.

It turns out the Superbowl is 208 meters in diameter.
The Caesars Superdome vs. Your Mars Dome
Since your Mars dome is modeled after the Superdome’s dimensions, here is the "spec sheet" for the Earth-bound version to help your team with the comparison:
Feature Caesars Superdome (Earth) Mars Dome Consideration
Diameter 680 feet (207 meters) Similar
Height 273 feet (83 meters) Similar
Material 20,000 tons of structural steel In-situ Martian materials (Regolith/Basalt)
Function Entertainment / Sports Total Life Support
Atmosphere 125 million cubic feet of air Pressurized, recycled O2/N2
Climate Control 9,000 tons of A/C Radiation shielding & thermal regulation
https://newmars.com/phpBB3/download/file.php?id=134
https://newmars.com/forums/viewtopic.php?id=8833
The "Amsterdam" Crater Dome Concept[
In case you miss the update, we discovered yesterday that the American Superdome at New Orleans is a good match for Calliban's concept. The dome is the same diameter as Calliban's design (plus 7 meters) and a bit less tall (83 meters vs 120).
As a reminder... the New Orleans Superdome turns out to be an existing model for your dome. The diameter is 207 meters (I don't know what was measured) and the height is 83 meters (short of your 120), but again, I don't know what was measured. Despite the uncertainty, it appears to me this existing working dome is surely a good model for your concept.
For SpaceNut .... it turns out that the New Orleans Superdome is a near perfect model for Calliban's dome.
If you ask google to show you images of the New Orleans Superdome it will come back with a wealth of images and videos and many citations about the building.
If you ask for architecture of the New Orleans Superdome it will provide more targeted information.
It turns out the Superdome is 207 meters in diameter although I don't know if that is the diameter at the base.
The height is given as 83 meters, but I don't know if that is inside outside the dome.
Calliban's dome is given as 200 meters interior diameter at the base, and 120 meters interior elevation to the peak.
It should be possible to learn what the architects had to design to provide all the amenities that are present inside the Superdome.
We don't have to guess. We can discover how much energy is required to heat the interior of the dome, to power the lighting, and to process the air and fluids that are brought in and shipped out.
In other words, the Superdome appears to provide a way for us to convert Calliban's vision into something resembling a project plan for implementation on Mars.
As GW Johnson pointed out in today's Google Meeting, there is a lot more to be done to insure the Mars dome is successful, but having hard ground truth to build upon will help us to convert this from hand waving to documentation.