Invitation to post for lurkers

a reply to: facedye

Whats that got to do with the FLOOR CONSTUCTION

Each floor slab was supported on steel angle cleats on outer wall and core wall thats what supported the floors if the load was to much for the steel cleat or the bolts guess what they failed once the lateral restraint on the floors is remove guess what the walls are no longer stable.

I know I test stuff like that sometimes to destruction

originally posted by: facedye

originally posted by: MrBig2430

originally posted by: facedye

originally posted by: samkent
a reply to: facedye

simply put, ~30 floors will never have enough kinetic energy to "pulverize" through ~80 floors of thicker reinforced steel.

Clearly you haven't looked at unique way they built WTC.
There wasn't "thicker reinforced steel" below.
Just cheap floor trusses supported at the two ends.
Any weight heavy enough to bust through one floor would continue through each floor below.
That's the flaw in the design and why no other sky scraper will be built like WTC.

I have looked at the unique way they built the WTC - this experience and research is precisely where I'm getting my point of view from.

see this is what I'm talking about - why automatically assume that I "haven't done my homework" instead of directly rebuttal my claim? tread carefully.

STRAIGHT from Wikipedia, with an applicable source from NIST for the claim:

"The perimeter structure was constructed with extensive use of prefabricated modular pieces, which consisted of three columns, three stories tall, connected by spandrel plates. The perimeter columns had a square cross section, 14 inches (36 cm) on a side, and were constructed of welded steel plate.[50] The thickness of the plates and grade of structural steel varied over the height of the tower, ranging from 36,000 to 100,000 pounds per square inch[51] (260 to 670 MPa). The strength of the steel and thickness of the steel plates decreased with height because they were required to support lesser amounts of building mass on higher floors.[50]"

WTC Construction

Seriously - you're talking about 9/11. it's best not to make baseless claims.

If the floors and their connections to the columns can hold 1000 tons, and the columns can hold 100,000 tons, and 1200 tons is placed onto the floor, does it matter how strong the columns are?

it absolutely does. the 1200 tons would meet the potential energy of the ~80 floors of steel columns holding them up.

even if they all collapsed down to their very core, you'd still have 220 floors of steel to collect in some fashion. please see my previous post for reference.

Only an idiot with no idea of structural design or loading could think that way

I suggest you find out what potential energy means

originally posted by: samkent
a reply to: facedye

simply put, ~30 floors will never have enough kinetic energy to "pulverize" through ~80 floors of thicker reinforced steel.

Clearly you haven't looked at unique way they built WTC.
There wasn't "thicker reinforced steel" below.
Just cheap floor trusses supported at the two ends.
Any weight heavy enough to bust through one floor would continue through each floor below.
That's the flaw in the design and why no other sky scraper will be built like WTC.

Amen to that kind of hollow those buildings