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hey i'm mick west of Medibank catalog

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professor holsters report on the

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collapse of building 7 World Trade

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Center 7 came out a few days ago and

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I've been looking at it I've read the

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report I have looked at Professor horses

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presentation and I've looked at all the

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videos that architects and engineers for

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9/11 truth shared on their channel of

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the various simulations and I've got a

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few questions that I'm gonna run through

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very quickly and then I'm gonna go into

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them in more detail so my first question

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is why does thicker 4.16 not show

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dynamic analysis now figure 4.16

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is this it is supposedly a simulation of

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what NIST proposed with some columns

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being removed and it's supposed to show

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a dynamic analysis of that situation it

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doesn't appear to do that though instead

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all it appears to do is show the top

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portion of the building simply rotating

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around a pivot point through the bottom

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point of the building with no distortion

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whatsoever my second question is what is

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the justification for static linear

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analysis in figure four point one four

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four point one four and similarly for

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point one and five or this diagram here

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now you see here it says visualization

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of linear static analysis and yet we use

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something that's obviously far beyond

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the bounds of linear static analysis we

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particularly have these columns that

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have been stretched out here which isn't

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something that is really what you do in

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linear static analysis my next question

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is what is the animation in Figure 4.20

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derived from 4.20 a and B show

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essentially the showpiece of this thing

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you see is what's shown on the on the

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cover here this neat bowing in of the

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penthouse but is it actually a dynamic

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analysis because it doesn't appear to be

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one because everything kind of moves as

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if it's almost animated by hand you see

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the the penthouse falls in very neatly

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there and everything just falls away

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with no real distortion it doesn't

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really look like it's a proper now

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my next question is why do you continue

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to confuse NIST's and sis model with the

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LS diner model this is something that is

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in the report on pages 29 and 30 you say

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that the progressive collapse model was

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separated in two parts you show it here

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and you show a line in the model problem

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is this is the LS diner model this

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diagram refers to the ancestor the 16

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floor model this is the global model 16

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floor model is a completely different

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model so I don't understand why you keep

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saying this wrong if you even look at

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the diagram on your previous page it

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says here ANSYS it says will turret and

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7/16 story model this is what they did

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in the 16 story model this is not the 16

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story model this is not the answers

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model this is the alla Steiner model why

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did you get them confused my next

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question is why focus on good a 2001

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when this did not use that in their

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global collapse NIST actually used the

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fire damage model from their their

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simulation we did not include the

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push-off of good a 2001 which is what

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you spend quite a lot of the report

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focusing on so this model here this LS

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diner model doesn't actually use the

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thing you spend most of the report in

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debunking so let's go back into this in

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a bit more a bit more detail here let's

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go back to the first question why does

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figure 4.16

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not show dynamic analysis what is

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dynamic analysis and how does it differ

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from static analysis well in static

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analysis you're essentially simulating a

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building that's not moving it's not

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collapsing and it's not like it's not

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swaying around that much you just it

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just has loads applied to it and then

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you figure out how much those loads

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cause deflection of the building and

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then you see you know will this will the

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structure support that amount of

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deflation so you're checking to see

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basically that the building won't

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collapse so in in static analysis things

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don't move

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they might deflect and deform a bit but

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you know generally they're not going to

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move now there's also the difference

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between linear and nonlinear linear

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analysis is where the response of

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connections is essentially just a simple

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linear responses like a spring if you

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put in so much force you'll get so much

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deflection if you deflect it so much

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that means that there's so much force is

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being applied is this simple linear

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response nonlinear means that it changes

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if you apply if it deflects more than a

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certain amount that changes like if you

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pull a string out long enough eventually

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it's gonna stretch out and it's not

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going to be springing anymore and say

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it's gone beyond its its linear response

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and it's now in a nonlinear response

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when a building is subjected to extreme

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loads like a sudden removal of a column

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you really want to use nonlinear because

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the connections are going to be deformed

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so much that their response isn't going

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to be linear anymore but unfortunately

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it seems that professor holster use is

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just linear but what we're talking about

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here is a dynamic model and ambach

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things move here we have things moving

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if I'm moving quite a lot the problem is

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in a proper dynamic simulation you

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shouldn't just have the top half of the

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building rotating like this you wouldn't

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just have this rotating the outside of

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the building is structural columns so

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these structural columns should actually

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be impacting the bottom structural

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columns so if this was an actual dynamic

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analysis you would expect to see a lot

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of bending down here you don't see

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anything in fact what you see is kind of

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curious is that he's removed an entire

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floor worth of columns here so we've got

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this bottom part then we got a gap then

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we have the top part and if you play the

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animation what happens is the top part

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just simply rotates and passes through

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the bottom part this very clearly is not

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a dynamic simulation of the any

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situation is supposed to be trying to

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simulate what NIST said happened now

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let's compare it to an actual dynamic

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simulation the the NIST simulation let

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me just find that is the actual

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simulation that NIST it I overlaid three

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different simulations and I flipped it

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so you can see what's going on but it's

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dynamic simulation things are moving

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floors are falling columns are bending

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things are actually moving quite a lot

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they're dynamic simulation you expect a

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lot of things to happen so here we see

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the

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collapsing and we see a lot of

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defamation of the columns on the

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interior of the building because the

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interior is collapsing it's time to

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buckle over here and this is where

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ventually the entire interior collapses

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and the outside collapses you also see

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this defamation here which you don't see

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in reality a lot of people point to that

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as being a problem but really it's just

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kind of indicative of the complex nature

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the chaotic nature essentially of

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simulations like this once you've gone

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past the initial point the actual

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outcome can vary quite a lot Hulsey

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talks about this in his talk actually

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someone asked him why there wasn't a

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kink in the top of the building and he

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explained that he tried and tried and

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tried to get this kink in his model but

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he could never actually do it so he

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didn't really understand why there

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wasn't that kink anyway this is what a

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dynamic simulation should actually look

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like this is not this is just one box

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rotating it's not simulating anything

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it's just the top box rotating and he

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does this again in Figure 4.20 this is

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figure four point two zero which is

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basically the same type of thing I think

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it's just a different this is where we

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moved all the columns simultaneously and

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he says this made the building tip over

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to one side

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which not only doesn't really make sense

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because why would the building's

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momentum move sideways when it's all

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going down near the center of gravity

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isn't going to pop out to the side and

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but you got the same thing again you've

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got this this row of columns remove the

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entire floor of columns has been removed

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bottom isn't moving at all and the top

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just simply rotates through the top

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since there might be a little distortion

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here it's kind of hard to tell but

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basically this is not a dynamic

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simulation next question what is the

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justification for static linear analysis

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in Figure 4 point 1 4 this is figure 4

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point 1 4 says visualization of linear

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static analysis on the southeast showing

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the building tipping to the southeast

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after the hypothetical failure of column

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76 to 81 this is I think 4 columns over

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here now this is linear static analysis

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now I've always already discussed why

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linear analysis really isn't appropriate

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you wonder nonlinear

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spawns especially if you're doing things

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like stretching out columns which you

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wouldn't really do but it's a static

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analysis and static analysis you use

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when things don't really move very much

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you know things kind of settle you you

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see things settling but when a building

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is starting to tip over then the

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momentum of the building itself will

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come into play the momentum of the

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movement of the columns impacting other

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columns will come into play this is when

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you do static analysis it's like this

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really really gradual thing you kind of

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let it settle a bit and then you would

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run the simulation again you let it

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settle a little bit more than you run

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the simulation again you ignore time and

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you ignore momentum and you ignore like

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collisions and the momentum of those

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collisions between objects so in a

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situation like this with a building

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tipping over to the side I don't think

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that static analysis is really a very

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appropriate thing and linear static

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analysis really isn't at all because you

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can expect all kinds of defamation here

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which is going to completely change the

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linear response yeah big thing here

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obviously is these columns here appear

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to have been stretched out two out of

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three times their natural length which

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of course is impossible and you can

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suggest that if she's using a kind of a

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linear spring for the columns in the

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back which is a bit a bit inappropriate

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I think and you know wrong I think in

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many yeah just basically wrong this

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actually is carries on to figure four

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point one five which is the same type of

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thing it's even more dramatic here you

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can see these columns stretching out

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here and then there's this kind of weird

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deformation here and you see a bit of

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the floors being squished down at the

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front which is what you'd expect but hey

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this is something that you do not see in

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the supposed dynamic analysis and the

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dynamic analysis you don't see these

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these floors being being crushed which

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we should cover so that's obviously not

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the dynamic analysis if you can show it

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in the static analysis then you

276
00:10:51,550 --> 00:10:48,890
certainly should be other shows in the

277
00:10:52,780 --> 00:10:51,560
dynamic analysis again here it is you

278
00:10:55,270 --> 00:10:52,790
know there's there's no real crushing

279
00:10:58,030 --> 00:10:55,280
going on it's more apparent in the the

280
00:11:00,720 --> 00:10:58,040
other animation this this just kind of

281
00:11:03,640 --> 00:11:00,730
slides off it's kind of a bizarre thing

282
00:11:06,070 --> 00:11:03,650
it wouldn't happen it's just it's just

283
00:11:07,310 --> 00:11:06,080
ridiculous I think what's happening here

284
00:11:11,290 --> 00:11:07,320
though is he's going to take

285
00:11:14,420 --> 00:11:11,300
what he thinks are the results of the

286
00:11:15,950 --> 00:11:14,430
static analysis static analysis which is

287
00:11:18,260 --> 00:11:15,960
completely inappropriate and it's pushed

288
00:11:19,730 --> 00:11:18,270
far too far beyond this limits and he

289
00:11:22,280 --> 00:11:19,740
said oh he's tilted over like this in

290
00:11:24,110 --> 00:11:22,290
the the static analysis let's do a

291
00:11:27,050 --> 00:11:24,120
dynamic analysis like a kind of a

292
00:11:30,020 --> 00:11:27,060
pretend dynamic analysis and so he's

293
00:11:32,150 --> 00:11:30,030
taken this static analysis and then he's

294
00:11:35,390 --> 00:11:32,160
just made the building just gonna rotate

295
00:11:37,280 --> 00:11:35,400
around a point to match this angle which

296
00:11:41,480 --> 00:11:37,290
is complete nonsense this is obviously

297
00:11:45,230 --> 00:11:41,490
not a dynamic analysis all right next

298
00:11:47,600 --> 00:11:45,240
point why focus on good at a 2001

299
00:11:50,540 --> 00:11:47,610
collapse when this did not use that in

300
00:11:53,470 --> 00:11:50,550
their global collapse analysis now

301
00:11:57,770 --> 00:11:53,480
there's a lot of focus on this one

302
00:12:00,080 --> 00:11:57,780
connection good a 2001 to column 79 and

303
00:12:02,480 --> 00:12:00,090
mr. gestured that's the expansion of

304
00:12:04,400 --> 00:12:02,490
beams next to it pushed it off its seat

305
00:12:07,520 --> 00:12:04,410
and that was the collapse initiation

306
00:12:10,820 --> 00:12:07,530
event if sir I suggested a probable

307
00:12:13,570 --> 00:12:10,830
collapse initiation event but this

308
00:12:16,580 --> 00:12:13,580
didn't actually use that in their

309
00:12:18,530 --> 00:12:16,590
dynamic analysis that was one result of

310
00:12:20,750 --> 00:12:18,540
their static in one other stuff in there

311
00:12:23,660 --> 00:12:20,760
the Hansen alysus which is a kind of a

312
00:12:26,420 --> 00:12:23,670
more detailed local model but if you

313
00:12:28,010 --> 00:12:26,430
look at the actual results of their

314
00:12:33,140 --> 00:12:28,020
there LS diner models is the global

315
00:12:35,510 --> 00:12:33,150
model actually mark comm 79 on this and

316
00:12:39,080 --> 00:12:35,520
we can see what happened I'm marketing

317
00:12:42,860 --> 00:12:39,090
green it's actually it's on this floor

318
00:12:45,890 --> 00:12:42,870
floor 30 and con column 79 is this one

319
00:12:47,120 --> 00:12:45,900
at the back and good at a 2001 it's just

320
00:12:50,890 --> 00:12:47,130
going to behind this going to the back

321
00:12:52,670 --> 00:12:50,900
wall so if I play this you will see

322
00:12:54,620 --> 00:12:52,680
nothing's really happening with calm

323
00:12:56,240 --> 00:12:54,630
with that a 2001 it's way back there

324
00:12:57,710 --> 00:12:56,250
this girder is glad this girder has

325
00:12:59,420 --> 00:12:57,720
collapsed this goodness collapse this

326
00:13:01,520 --> 00:12:59,430
gooders collapse good as collapsed over

327
00:13:03,560 --> 00:13:01,530
here goodness collapsing over here some

328
00:13:05,990 --> 00:13:03,570
damage down here these are all kind of

329
00:13:10,280 --> 00:13:06,000
starting to go and if we continue to

330
00:13:12,620 --> 00:13:10,290
play yeah now now we see that particular

331
00:13:18,070 --> 00:13:12,630
good at a 2001 actually collapse at this

332
00:13:21,079 --> 00:13:18,080
point so good at a 2001 isn't used in

333
00:13:22,759 --> 00:13:21,089
the global model

334
00:13:26,449 --> 00:13:22,769
in terms of an initiation advantage just

335
00:13:28,399 --> 00:13:26,459
something that will fall because all the

336
00:13:29,659 --> 00:13:28,409
girders fall at some point but really

337
00:13:31,549 --> 00:13:29,669
what happened is the other girders

338
00:13:34,339 --> 00:13:31,559
around it failed first this is I don't

339
00:13:35,629 --> 00:13:34,349
know what this is 2002 maybe but that he

340
00:13:37,489 --> 00:13:35,639
has four different girders here with

341
00:13:40,129 --> 00:13:37,499
fire damage and they they collapse so

342
00:13:42,349 --> 00:13:40,139
this is miss global model so if you want

343
00:13:44,359 --> 00:13:42,359
to compare your global model to miss

344
00:13:46,609 --> 00:13:44,369
global model and you can't be talking

345
00:13:48,109 --> 00:13:46,619
about like oh well you know a 2001

346
00:13:51,769 --> 00:13:48,119
couldn't possibly have collapsed because

347
00:13:55,579 --> 00:13:51,779
it didn't in this model in this a 2001

348
00:13:58,009 --> 00:13:55,589
it missed global model there LS dinah

349
00:13:59,209 --> 00:13:58,019
model we did in fact have good

350
00:14:04,789 --> 00:13:59,219
connections which I'll come to in a

351
00:14:06,679 --> 00:14:04,799
second there it is and in a global

352
00:14:09,819 --> 00:14:06,689
context you can see it's the same type

353
00:14:12,829 --> 00:14:09,829
of thing muck floor 13 in red here and

354
00:14:15,499 --> 00:14:12,839
you will see there's all the other

355
00:14:21,859 --> 00:14:15,509
damage is not on floor 13 yet is around

356
00:14:25,279 --> 00:14:21,869
it over here and it does eventually fall

357
00:14:27,819 --> 00:14:25,289
out and again this is what an actual

358
00:14:30,709 --> 00:14:27,829
dynamic model looks like a nonlinear

359
00:14:32,299 --> 00:14:30,719
dynamic analysis which is what what you

360
00:14:34,209 --> 00:14:32,309
should do if you want to model a falling

361
00:14:39,889 --> 00:14:34,219
building you don't just model one block

362
00:14:42,289 --> 00:14:39,899
rotating above another block okay next

363
00:14:44,689 --> 00:14:42,299
question what is the animation in Figure

364
00:14:46,039 --> 00:14:44,699
4.2 for derived from cuz it looks like

365
00:14:48,019 --> 00:14:46,049
it's done by hand now this is the one

366
00:14:50,959 --> 00:14:48,029
that's new obviously meant to match the

367
00:14:52,969 --> 00:14:50,969
famous videos we see that the penthouses

368
00:14:55,309 --> 00:14:52,979
like snapped in to and it falls into the

369
00:14:57,889 --> 00:14:55,319
building it stops right here for some

370
00:15:00,199 --> 00:14:57,899
reason and then the rest of the building

371
00:15:01,369 --> 00:15:00,209
collapses you will see this go down and

372
00:15:02,209 --> 00:15:01,379
then the rest of the building collapses

373
00:15:05,329 --> 00:15:02,219
so this is something was obviously

374
00:15:07,969 --> 00:15:05,339
intended to match the actual collapse

375
00:15:10,669 --> 00:15:07,979
and there's two versions of this 4.2 for

376
00:15:13,729 --> 00:15:10,679
a 4.2 for B and you can see better I

377
00:15:15,739 --> 00:15:13,739
think what's going on in 4.2 for B and

378
00:15:19,909 --> 00:15:15,749
this can is where we get to the problems

379
00:15:21,919 --> 00:15:19,919
with this notice the way the penthouse

380
00:15:23,989 --> 00:15:21,929
has collapsed here I'm just going to pan

381
00:15:25,549 --> 00:15:23,999
back and forth a little bit here it

382
00:15:30,469 --> 00:15:25,559
snaps into in the middle and then it

383
00:15:31,909 --> 00:15:30,479
very very neatly pivots around what

384
00:15:34,009 --> 00:15:31,919
seems to be at this point here and this

385
00:15:34,910 --> 00:15:34,019
point here is going to let rotating so

386
00:15:36,439 --> 00:15:34,920
this means the

387
00:15:40,059 --> 00:15:36,449
bottom corner here actually kind of

388
00:15:42,379 --> 00:15:40,069
lifts up it's really kind of bizarre and

389
00:15:44,169 --> 00:15:42,389
then when he gets to a certain amount of

390
00:15:47,660 --> 00:15:44,179
pivot it all starts to fall

391
00:15:48,799 --> 00:15:47,670
simultaneously and then it gets to about

392
00:15:50,749 --> 00:15:48,809
here and then it's that's that kind of

393
00:15:52,689 --> 00:15:50,759
close-up on itself and it looks like it

394
00:15:54,769 --> 00:15:52,699
wrapped around something and then stops

395
00:15:55,849 --> 00:15:54,779
it's all very strange

396
00:15:58,549 --> 00:15:55,859
I suppose it's supposed to be wrapping

397
00:16:00,199 --> 00:15:58,559
around the the girders across the

398
00:16:02,629 --> 00:16:00,209
columns but they're all gone what's it

399
00:16:04,369 --> 00:16:02,639
actually wrapping around doesn't make

400
00:16:06,579 --> 00:16:04,379
any sense but anyway that more of the

401
00:16:09,439 --> 00:16:06,589
point is that you have got this

402
00:16:12,949 --> 00:16:09,449
remarkably smooth rotation here with

403
00:16:14,929 --> 00:16:12,959
zero defamation these it's like it's

404
00:16:15,530 --> 00:16:14,939
almost like they'd split this into two

405
00:16:18,769 --> 00:16:15,540
halves

406
00:16:21,919 --> 00:16:18,779
they've manually rotated each one out

407
00:16:24,409 --> 00:16:21,929
and then they manually made it fall down

408
00:16:26,319 --> 00:16:24,419
to here with nothing else going on

409
00:16:29,139 --> 00:16:26,329
nothing's really being damaged here and

410
00:16:32,329 --> 00:16:29,149
then they manually made it stop here and

411
00:16:34,669 --> 00:16:32,339
then after that we got another strange

412
00:16:36,919 --> 00:16:34,679
thing which is this just kind of neatly

413
00:16:39,470 --> 00:16:36,929
falls into the building looking nothing

414
00:16:40,699 --> 00:16:39,480
like what actually happened which loads

415
00:16:44,720 --> 00:16:40,709
of deformation going on in the real

416
00:16:48,229 --> 00:16:44,730
thing here's a another comparison of the

417
00:16:50,539 --> 00:16:48,239
NIST model with this and this is the

418
00:16:52,400 --> 00:16:50,549
real view taken from some distance away

419
00:16:54,049 --> 00:16:52,410
so it's a little hard to see but so I'll

420
00:16:57,259 --> 00:16:54,059
just run through it real quick we'll see

421
00:16:58,669 --> 00:16:57,269
the interior damage going on in the the

422
00:16:59,210 --> 00:16:58,679
NIST model which will eventually lead to

423
00:17:00,650 --> 00:16:59,220
collapse

424
00:17:03,289 --> 00:17:00,660
you know things happening here yet hope

425
00:17:07,220 --> 00:17:03,299
so now now we've got the falling in of

426
00:17:08,419 --> 00:17:07,230
the two penthouses and you saw that in

427
00:17:10,909 --> 00:17:08,429
the middle one and then everything

428
00:17:13,809 --> 00:17:10,919
collapses let's just look at it a little

429
00:17:18,019 --> 00:17:13,819
bit more detail here we've got the

430
00:17:20,360 --> 00:17:18,029
tipping in of the penthouse now notice

431
00:17:22,370 --> 00:17:20,370
again we've got this kind of strange

432
00:17:25,939 --> 00:17:22,380
rotation this change outward rotation in

433
00:17:28,820 --> 00:17:25,949
the whole C model in the NIST model it

434
00:17:30,259 --> 00:17:28,830
kind of crumples in couples inwards so

435
00:17:32,419 --> 00:17:30,269
the tops of the building the tops of

436
00:17:35,539 --> 00:17:32,429
this penthouse move inwards the bottoms

437
00:17:37,940 --> 00:17:35,549
do not move and this matches reasonably

438
00:17:39,289 --> 00:17:37,950
well what we actually see in the

439
00:17:41,269 --> 00:17:39,299
real-world model if you look at the

440
00:17:44,149 --> 00:17:41,279
real-world model here you'll see that

441
00:17:46,140 --> 00:17:44,159
it's tilting inwards and it kind of it's

442
00:17:49,050 --> 00:17:46,150
crumpled berry irregularly like we have

443
00:17:50,910 --> 00:17:49,060
here and in contrast the Holte model

444
00:17:52,950 --> 00:17:50,920
it's got this very strange regularity

445
00:17:56,160 --> 00:17:52,960
and we got this very strange outward

446
00:17:57,420 --> 00:17:56,170
tilting of the bottom of the model like

447
00:17:58,500 --> 00:17:57,430
it's pivoting around the top for either

448
00:18:01,050 --> 00:17:58,510
thing around the bottom which you would

449
00:18:03,750 --> 00:18:01,060
expect so it doesn't really seem to be

450
00:18:06,810 --> 00:18:03,760
based on an actual physical thing it's

451
00:18:09,480 --> 00:18:06,820
almost as if they've taken some angles

452
00:18:12,420 --> 00:18:09,490
from there their static analysis and

453
00:18:14,730 --> 00:18:12,430
then manually animated something to make

454
00:18:15,840 --> 00:18:14,740
it look like what's happening but they

455
00:18:20,100 --> 00:18:15,850
kind of got it wrong and that they

456
00:18:23,010 --> 00:18:20,110
rotate it the penthouse pieces around a

457
00:18:26,820 --> 00:18:23,020
different rotation point here it is like

458
00:18:28,080 --> 00:18:26,830
in more detail you can see you can see

459
00:18:31,830 --> 00:18:28,090
what actually happens so let's just play

460
00:18:33,870 --> 00:18:31,840
this okay so notice this is all crumpled

461
00:18:35,070 --> 00:18:33,880
air and it looks quite not always it's

462
00:18:37,080 --> 00:18:35,080
not realistic because it's just a

463
00:18:38,670 --> 00:18:37,090
wireframe but it's lots of distortion

464
00:18:40,500 --> 00:18:38,680
which is what you will expect from these

465
00:18:42,270 --> 00:18:40,510
columns being removed it's not going to

466
00:18:45,000 --> 00:18:42,280
neatly just crack in half and lower

467
00:18:47,130 --> 00:18:45,010
itself into the building which is kind

468
00:18:48,660 --> 00:18:47,140
of what it does here in the whole see

469
00:18:50,790 --> 00:18:48,670
model as ice focus on the whole see

470
00:18:54,090 --> 00:18:50,800
model for a second I'm gonna go back and

471
00:18:57,330 --> 00:18:54,100
forth there you see this this weird kind

472
00:19:00,810 --> 00:18:57,340
of just rotating and spreading outwards

473
00:19:02,970 --> 00:19:00,820
with no drop and then all of a sudden it

474
00:19:06,050 --> 00:19:02,980
starts to just very neatly just fall

475
00:19:08,580 --> 00:19:06,060
into the building without moving at all

476
00:19:10,640 --> 00:19:08,590
there's if you compare that to the NIST

477
00:19:12,720 --> 00:19:10,650
model you see a lot more actual

478
00:19:15,810 --> 00:19:12,730
distortion which I think much more

479
00:19:16,980 --> 00:19:15,820
closely matches the actual reality of

480
00:19:19,110 --> 00:19:16,990
the situation you can see especially

481
00:19:21,690 --> 00:19:19,120
this side here tilting in and this kind

482
00:19:24,390 --> 00:19:21,700
of irregular nature you can see this a

483
00:19:28,590 --> 00:19:24,400
bit more in the other videos but this

484
00:19:30,270 --> 00:19:28,600
just seems kind of ridiculous you know

485
00:19:34,410 --> 00:19:30,280
what is actually supposed to be going on

486
00:19:35,670 --> 00:19:34,420
there and if I sit back here there's

487
00:19:38,550 --> 00:19:35,680
another interesting thing we can look at

488
00:19:40,260 --> 00:19:38,560
real quick hopefully you can make this

489
00:19:42,570 --> 00:19:40,270
out there if you watch this you'll see

490
00:19:44,370 --> 00:19:42,580
when the penthouse falls into the

491
00:19:46,410 --> 00:19:44,380
building you can see the building

492
00:19:48,630 --> 00:19:46,420
windows all kind of ripple outwards as

493
00:19:51,750 --> 00:19:48,640
the penthouse falls in and what you'll

494
00:19:53,040 --> 00:19:51,760
notice is that the rippling area just

495
00:19:54,900 --> 00:19:53,050
move forward a little bit

496
00:19:57,510 --> 00:19:54,910
it goes in iRacing you can see it's a

497
00:19:58,710 --> 00:19:57,520
bit brighter here you'll see that move

498
00:20:00,120 --> 00:19:58,720
all the way down

499
00:20:02,580 --> 00:20:00,130
whereas in horses model

500
00:20:05,160 --> 00:20:02,590
the penthouse kind of stops here so let

501
00:20:06,810 --> 00:20:05,170
me just play that it's going down down

502
00:20:09,390 --> 00:20:06,820
down down down brightness goes all the

503
00:20:11,070 --> 00:20:09,400
way down to here I'm gonna go back and

504
00:20:12,930 --> 00:20:11,080
forth a little bit here you see it going

505
00:20:14,520 --> 00:20:12,940
all the way down and this is something

506
00:20:17,060 --> 00:20:14,530
you can there's threads on Meadowbrook

507
00:20:21,750 --> 00:20:17,070
that share this in a bit more detail

508
00:20:24,000 --> 00:20:21,760
okay so why do you confuse NIST's and

509
00:20:26,250 --> 00:20:24,010
see smaller with the LS diner model this

510
00:20:28,350 --> 00:20:26,260
it makes a big deal of this and he talks

511
00:20:31,440 --> 00:20:28,360
about it in the presentation

512
00:20:33,780 --> 00:20:31,450
professor Halsey and he says that he

513
00:20:35,730 --> 00:20:33,790
thinks that NIST had different stiffness

514
00:20:38,400 --> 00:20:35,740
on one side of the building or the other

515
00:20:41,460 --> 00:20:38,410
because of this here but yeah as as I

516
00:20:45,480 --> 00:20:41,470
noticed as I noted before and as

517
00:20:48,390 --> 00:20:45,490
actually says in the model is the

518
00:20:50,130 --> 00:20:48,400
ancestor it's a 16 story model it's not

519
00:20:51,360 --> 00:20:50,140
the global model you know he's

520
00:20:52,980 --> 00:20:51,370
objections he don't really make any

521
00:20:54,540 --> 00:20:52,990
sense and it's a bit worrying because it

522
00:20:57,300 --> 00:20:54,550
kind of shows that he doesn't really

523
00:21:00,000 --> 00:20:57,310
understand the NIST model and he's been

524
00:21:02,330 --> 00:21:00,010
ignoring all of the criticism of his

525
00:21:04,980 --> 00:21:02,340
report for like the last two plus years

526
00:21:08,670 --> 00:21:04,990
this is something that was pointed out I

527
00:21:10,590 --> 00:21:08,680
believe around two years ago when he did

528
00:21:12,570 --> 00:21:10,600
his original presentation when he

529
00:21:15,120 --> 00:21:12,580
concluded that fire could not have

530
00:21:18,440 --> 00:21:15,130
caused the collapse he used this exact

531
00:21:21,030 --> 00:21:18,450
same thing and said that the mist model

532
00:21:22,440 --> 00:21:21,040
used stiffnesses differently on one side

533
00:21:23,760 --> 00:21:22,450
than the other when it was only the 16

534
00:21:25,440 --> 00:21:23,770
story model I don't need because they

535
00:21:27,780 --> 00:21:25,450
were only modeling the local connections

536
00:21:28,710 --> 00:21:27,790
around this area because they wanted to

537
00:21:30,390 --> 00:21:28,720
see what would happen around these

538
00:21:32,340 --> 00:21:30,400
connections it wasn't a global response

539
00:21:36,030 --> 00:21:32,350
model so it's a bit worrying that he

540
00:21:37,830 --> 00:21:36,040
doesn't actually understand that but you

541
00:21:42,090 --> 00:21:37,840
know really I think the big issues here

542
00:21:46,260 --> 00:21:42,100
are why do we have this ridiculous usage

543
00:21:48,090 --> 00:21:46,270
of static linear analysis for something

544
00:21:51,500 --> 00:21:48,100
that's obviously very dynamic and

545
00:21:54,090 --> 00:21:51,510
nonlinear and why do you have these

546
00:21:58,470 --> 00:21:54,100
rather ridiculous things that are being

547
00:22:01,460 --> 00:21:58,480
passed off as being dynamic analysis

548
00:22:04,140 --> 00:22:01,470
when they're clearly nothing of the sort

549
00:22:06,660 --> 00:22:04,150
now this is just my first pass at this

550
00:22:08,010 --> 00:22:06,670
and I probably got some things wrong

551
00:22:09,930 --> 00:22:08,020
there's probably some things I don't

552
00:22:12,399 --> 00:22:09,940
understand maybe there's reasons for

553
00:22:14,980 --> 00:22:12,409
this ridiculous animation may

554
00:22:17,049 --> 00:22:14,990
I don't know I can't think of any

555
00:22:19,090 --> 00:22:17,059
reasons but the Sun technical reasons

556
00:22:21,610 --> 00:22:19,100
why he couldn't actually show the LS

557
00:22:24,490 --> 00:22:21,620
Deena and I met Nadia via the sap2000

558
00:22:26,799 --> 00:22:24,500
animation but there's no reason for that

559
00:22:29,230 --> 00:22:26,809
except mm got buttons you can press and

560
00:22:32,649 --> 00:22:29,240
he will pop out in animation obviously

561
00:22:34,779 --> 00:22:32,659
if you did a dynamic analysis then you

562
00:22:36,490 --> 00:22:34,789
have the positions of all the members

563
00:22:38,590 --> 00:22:36,500
and you could render out something which

564
00:22:40,690 --> 00:22:38,600
shows where what happened to it that's

565
00:22:42,340 --> 00:22:40,700
not what's going on here this is just

566
00:22:44,169 --> 00:22:42,350
the top half rotating around the bottom

567
00:22:49,389 --> 00:22:44,179
half and frankly it looks quite

568
00:22:51,789 --> 00:22:49,399
ridiculous anyway I anticipate making

569
00:22:54,070 --> 00:22:51,799
another video with corrections to this

570
00:22:57,340 --> 00:22:54,080
video so if you think I got something

571
00:23:00,279 --> 00:22:57,350
wrong please put it in detail in the

572
00:23:02,799 --> 00:23:00,289
comments below or email me make up my