Request: CD and Structural Engineers who believe the CT?

[Gravy]

Looking at the Jowenko film, there is an increasing impression of unease as he realises he's digging a deeper hole for himself. I don't know what he's saying about it now.

I sent him a lot of WTC 7 info a while back and followed up once, but never heard from him. I'll send him the link to my WTC 7 paper.

 

[Architect]

I have a question for The Architect and Anti-Sophist (who I believe is a structural engineer?).

I read a statement by an architect who claims the collapse of the towers was due to a design flaw. The design flaw concerns the visoelastic dampening system used it the wtc.

Any validity to this?

Sorry for the delay in responding.

I'm not hugely convinced by the article but it's possible that it's a factor; fire protection would normally encapsulate all elements of the supporting structure, including dampers and brackets, and hence much depends on degree of intactness.

 

[westprog]

I sent him a lot of WTC 7 info a while back and followed up once, but never heard from him. I'll send him the link to my WTC 7 paper.

I bet he really, really wishes he hadn't looked at that video clip. There's no graceful way out of this now. He's been caught on film saying it was a controlled demolition. He now knows it wasn't, and would have to stand up and admit he was wrong. Or else dig himself deeper. The lie low option is probably the current strategy.

 

[PerryLogan]

Just to fill out the picture, here are a few engineers who don't go along with the conspiracy theory.

Such engineers are incredibly easy to find on the web, which raises the question of why the conspiracy theorists can't find them:

[SIZE=-1]Where can I find engineering studies concerning the World Trade Center that refute the claims that it was demolished by bombs or "controlled demolition?"
http://www.fema.gov/pdf/library/fema403_execsum.pdf
http://wtc.nist.gov/media/Structural_Fire_Response_and_Collapse_Analysis.pdf
http://www.firehouse.com/news/2002/4/30_APwtc.html

Where can I find engineering studies that offer evidence that structural steel from the World Trade Center was collected for analysis?
http://wtc.nist.gov/media/gallery.htm#recover
http://wtc.nist.gov/media/gallery2.htm
http://wtc.nist.gov/media/Structural_Fire_Response_and_Collapse_Analysis.pdf
http://members.fortunecity.com/911/wtc/WTC_apndxD.htm

Where can I find evidence that refutes the claim that World Trade Center Building 7 was "pulled" down intentionally by some official order?
http://www.tms.org/pubs/journals/JOM/0112/Biederman/Biederman-0112.html

Where can I find engineering studies concerning the Pentagon that refute the claims that it was hit by a guided missile?
http://www.icivilengineer.com/News/WTC/pentagon.php
http://www.cs.purdue.edu/homes/cmh/simulation/phase1/
http://www.asce.org/responds/

More information:
http://architecture.about.com/library/weekly/aawtc-collapse.htm
http://www.icivilengineer.com/News/wtc.php
http://www.icivilengineer.com/News/WTC/structure.php
http://enr.construction.com/news/buildings/archives/021104.asp
http://web.mit.edu/civenv/wtc/
http://www.icivilengineer.com/News/WTC/Fire.html
http://www.asce.org/pdf/3-6-02wtc_testimony.pdf
http://www.civil.usyd.edu.au/latest/wtc.php#why
http://www.pbs.org/wgbh/nova/wtc/resources.html
http://www.house.gov/science/hot/wtc/
[/SIZE] [SIZE=-1]More links to real engineers refuting conspiracy theorists:

http://www.tms.org/pubs/journals/JOM/0112/Eagar/Eagar-0112.html
http://www.civil.usyd.edu.au/latest/wtc.php
http://space.com/scienceastronomy/generalscience/wtc_science_010919.html
http://www.teachersdomain.org/6-8/sci/engin/systems/collapse/
http://mcleon.tripod.com/WTC1.htm
http://www.hera.org.nz/PDF Files/World Trade Centre.pdf
[/SIZE] [SIZE=-1]YET MORE:

http://news.bbc.co.uk/2/hi/americas/1540044.stm
http://www.civil.usyd.edu.au/wtc.shtml
http://www.civil.northwestern.edu/news/wtc/wtc.html
http://www.newhaven.edu/show.asp?durki=1185
http://www.civil.usyd.edu.au/latest/aibs_2002_wtc.pdf
http://www.eurekalert.org/pub_releases/2001-12/su-sed120301.php
http://news-service.stanford.edu/news/2001/december5/wtc-125.html

An article from the Journal of Engineering Mechanics:
http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JENMDT000128000001000002000001&idtype=cvips&gifs=yes

Here's a colloquium of engineers discussing the fall of the WTC towers. They're all too dumb to see the bombs:
http://mae.ce.uiuc.edu/Outreach/Conferences/wtc.htm

A collection of essays by researchers at MIT:
http://web.mit.edu/civenv/wtc/

A bibliography of analyses of the collapse:
http://www.engr.psu.edu/ae/wtc/wtctragedy.html#Analysis%20of%20Collapse

Architecture Week on the engineering forensics of the collapse:
http://www.architectureweek.com/2001/1017/news_1-2.html
[/SIZE] [SIZE=-1]Oh, what the heck. Here's some more...

On WTC7:
http://www.americanlaboratory.com/articles/al/a0212mar.pdf
http://www.rit.edu/~smo5024/papers/wtc/
http://212.204.44.125/WTC/wtc----the-construction/great_buildings_wtc/WTC_GBO.htm
http://www.architectureweek.com/2002/0515/news_1-1.html
http://southerncrossreview.org/41/9-11.htm
http://www.nist.gov/public_affairs/ncst/Final NCSTAC 2004 Report to Congress.pdf
http://www.engr.psu.edu/ae/wtc/wtctragedy.html
http://www.stanford.edu/dept/news/report/news/december5/wtc-125.html
http://www.tms.org/pubs/journals/JOM/0112/Eagar/Eagar-0112.html
http://www.newyorker.com/fact/content/articles/011119fa_FACT
http://www.ncsea.com/articles/seerp/wtcseerp.pdf
http://www.pubs.asce.org/ceonline/ceonline02/0502feat.html
http://mceer.buffalo.edu/publications/wtc/02-SP08/default.asp

In this article, the author, Anne Elizabeth Powell, describes in detail how civil engineers quickly mobilized and led the efforts to evaluate not only the performance of the structures involved in the two assaults but also the vulnerability of the nation's infrastructure to future attacks in the aftermath of the terrorist attacks on the World Trade Center and the Pentagon:
http://www.pubs.asce.org/ceonline/ceonline01/0111feat.html

This Web site provides a summary of seismic observations, including seismogram traces of the two impacts and three collapses at the WTC (including those of the twin towers as well as that of the adjacent building, WTC-7):
http://www.ldeo.columbia.edu/LCSN/Eq/20010911_wtc.html

This report presents results of the National Aeronautics and Space Administration's (NASA's) Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) remote sensing data and interpretations that mapped the distribution and intensity of thermal hot spots in the WTC area on September 16 and 23:
http://pubs.usgs.gov/of/2001/ofr-01-0405/ofr-01-0405.html[/SIZE]

 

[Porkpie Hat]

Sorry for the delay in responding.

I'm not hugely convinced by the article but it's possible that it's a factor; fire protection would normally encapsulate all elements of the supporting structure, including dampers and brackets, and hence much depends on degree of intactness.

Thanks for the reply.

I doubt this guy would have been privy to the information (blueprints, data calcs...etc.) required to make such a claim but it did seem plausible to me as a layperson. Again, thanks for the expert opinion!

What I did find interesting while reading through this forum was that some critisim was made of the architectural community in regards to the increasing gap between safety and the ablility to build higher and higher buildings. Any comment on this?

 

[Porkpie Hat]

Att. Perry

Perry,

I checked out your site for the first time last night and loved it so much that I bookmarked it twice. The picture of you holding the remote at the Pentegon was hilarious, I actually woke up my kids in a fit of uncontrollable laughter!

Keep up the great work JREFer's, you are truly are a cut above the rest.