Is DU Invested In Steel Core Columns? Equaling “No Support For Concrete”

[Christophera]

Let me say first, the page

MIHOP Demopedia

http://demopedia.democraticunderground.com/index.php/MIHOP


is an excellent compilation of very valid information for the large part. However, for me there is always the “core issue” because there is no evidence whatsoever for the multiple steel core columns. In fact what we saw on 9-11 cannot possibly happen with steel core columns. If it is going to free fall with multiple steel core columns, then the detonations will look totally different than this.



There is a statement in the section titled;

The core of the matter

This construction photograph of the North Tower shows that the core structures consisted of bundles of columns cross-linked by horizontal and diagonal members.

Destroying the core columns is key to achieving total building collapse, yet FEMA's long report has only one short passage explaining how the cores self-destructed.

This graphic from the BBC is thoroughly inaccurate:

The statement "the core structures consisted of bundles of columns cross-linked by horizontal and diagonal members." is incorrect and its sources are unamed. No raw evidence exists for this. The diagonal members mentioned and shown in the image below are part of the crane platform which travelled up the building with constrcution. The platform had a base that extended a few floors downward, fitting into the core cavity before the concrete was formed and poured, providing a higher position for the cranes erecting structural steel.

Here is the image from the DU MIHOP page.



The vertical steel inside the core is elevator guide rail.

It is true what the MIHOP Demopedia page says about the alternative core diagram, but not for the reasons it says. The below image does not depict a space in the center of the core for elevators and stairways that we know were there.



Then the Demopedia page goes on with comment on the image which doesn't reasonably correct the error, but makes it worse because it supports the official design.

It describes the columns as steel-reinforced concrete when in fact they were 100% steel.

That cannot be either. Structural steel cannot have this appearance.



This is what structural steel looks like.



but that steel is not inside the core. Those columns are interior box columns that ringed the outside of the concrete core shear walls. The stubs of floor beams can be seen along the sides of it and it appears as the corner of the structure.

Here is a zoomed image that shows a cross section with its vertical elements, from left to right; interrupted walls under core hallways, core wall, steel interior box column.



I watched a 2 hour documentary called “The Construction Of The Twin Towers” on PBS in 1990. Two thirds of the show was about the concrete core. It described in detail the concrete core and the difficulties building it.

This image shows vertical elements far too fine to be structural steel. (This photo taken less that a second after the image immediately above.



That image shows the 3” rebar. Totally supporting what I know stood as the tower core.

Below is a photo of ground zero and a tower core showing the inner stairwell, the thick base of the concrete core with the interior box columns surrounding it.



So, ....... here I have all this evidence of a concrete core which helps explain an otherwise impossible seeming event, and folks read what the bb host authority has on their site and it points at an erroneous depiction, states it was a steel core and provides nothing but a improperly interpreted construction photo as evidence. All this happening while at least 3 times a week for the last 6 months I PROVE there was a concrete core in the towers here in the forum.

Yes, ............ it is proven. If the reader doesn't have the experience and knowledge to know the proof of physical evidence, and can't understand what they are looking at with my guidance, then they have to follow discussion to get past that debility by examining the most rational and comprehensive the replies are. In other words, it doesn't matter how many times someone asks 'Where is the video" if they never answer my question, "Why are none of the 47 steel core columns never seen?", they have completely failed to provide support for the core that they, by default, assert exists. While they are doing that I'm weaving common and fully accepted construction technology identification and terms into raw evidence of images of the towers demise, that fit quite well.

So IF; MIHOP Demopedia page says there was a steel core, and my threads and posts SHOW a concrete core for 6 month; is there an investment being protected by not amending the page?

[RedSock]

1. i would think the 1990 video is solid proof

I never saw the video you mentioned -- a 2 hour documentary called "The Construction Of The Twin Towers" on PBS in 1990 -- but are there people here willing to believe this documentary was deliberately faked more than 11 years before the 9/11 attacks?

also why hasn't anyone gone back and read newspapers from the towers construction?

those many articles could probably settle this dispute once and for all.

(unless the people whose theory gets dashed believe the new york times, post and daily news were all planting disinfo in the late 1960s -- 30+ years before the attacks.)

[Christophera]

2. Very Good Idea-Any New Yorkers Up For Searching Archives Of Papers?

Xcellent idea.

I've tried to get a rapport going with a New Yorker or 2 who was after 9-11 truth but it never seems to go anywhere. This issue of the core is so important that it is possible that all major sources of highest credibility may be tapped already. I have not even looked for the 1990 documentary. I happen to be very familiar with how information disapears from the places we would expect it to remain. All types of it. Earlier attempts to contact PBS for other reasons convinced me they were isolating.

[RedSock]

3. interlibrary loan

you should be able to order any of the major NY papers and get them delivered to your local library.

[Christophera]

4. Normally Papers Transferred To Microfiche, Yes-Good Idea Better!

I will check that out!