New Control Demo Methods

I was thinkingn recently that since these buildings came down with fire and some structure damage that our controled demo compains should re-artiecht their methods to bring down buildings.

In the case of #7, I would think it would be much cheaper to destroy some outside columns with a wrecking ball or explosives and start some fires thruout and watch it 'globally collapse'

In the case of 1 & 2 similar buildings just need to have a portion of their outside columns and a couple interior columns busted. Then pour alot of fuel at the top floors?

Maybe its a conspiarcy that the CD companies already know; we can bring down bulidings really cheap (fires and some damage) but they want to sell all of these complicated explosion systems.

All it took according to NIST was to breach columns 79, 80 &/or 81 for WTC 7 to drop!

2PacSade-

Originally posted by 2PacSade
All it took according to NIST was to breach columns 79, 80 &/or 81 for WTC 7 to drop!

Kind of like how for the towers you would only have to completely knock out more than half of the steel supports on any given floor. That's all.

Those columns in WTC7 were major columns, coming down through the center of the building. Not only were they shielded from any exterior debris damage, but they were also extremely massive and fire wouldn't hurt them in the least.

Come on, you can build a huge, energetic wood fire in an oven only using steel a small fraction of the thickness of those columns, and it will burn for hours and hours before the steel begins to turn red, if it ever will. The steel in a stove may be subjected to comparable stress per area as a massive building column, too, if you think that will make much of a difference at all. A column has much more force acting on it but it also has much more area and thickness for the force to be applied over. So you can't even throw a wrench in there. A column is just not going to fail from fire alone. It at least has to be knocked out by a jet or debris or even deflect itself from thermal expansion. But realistically, none of those are options for the main columns holding Building 7 up from its core structure.

[edit on 18-9-2007 by bsbray11]

NIST report on aircraft impact and fires not causing enough damage to cause collapse.

Fahim Sadek, Michael A. Riley, Emil Simiu,
William Fritz, and H.S. Lew
Building and Fire Research Laboratory
National Institute of Standards and Technology
U.S. Department of Commerce
[email protected]
Federal Building and Fire Safety Investigation
of the World Trade Center Disaster
Baseline Structural Performance and Aircraft
Impact Damage Analysis
June 22, 2004

The tower maintained its stability with the removal of columns in the
exterior walls and core columns representative of aircraft impact and
also after losing columns in the south wall due to fire effects with some
reserve capacity left, indicating that additional weakening or loss of
other structural members is needed to collapse the tower.