How much "jolt" is seen in bottom-up CD?

[leftysergeant]

Just out of curiousity, since someone jogged my thinking about this today, how much of a "jolt" is seen as each floor of a conventionally-demolished building hits the ground, compared to the collapse of the WTC towers from the top down?

 

[Dave Rogers]

Just out of curiousity, since someone jogged my thinking about this today, how much of a "jolt" is seen as each floor of a conventionally-demolished building hits the ground, compared to the collapse of the WTC towers from the top down?

There are jolts visible in verinage demolitions when the top block hits the bottom block. In verinage, the collapse is carefully controlled so that the top block drops without rotating, and the structures demolished this way are made up of reinforced concrete slabs. Because it's still level, and because there's a well-defined surface to each block, the entire bottom surface of the top block hits the entire top surface of the bottom block at the same instant.

I don't know if anybody's looked at conventional bottom-up collapses initiated by explosives. It's a classic truther fallacy, though, to claim that the WTC collapses resemble explosive demolitions in specific features but not to bother finding out whether explosive demolitions even exhibit those features.

Dave