I have already calculated that the force exerted by the descending upper section greatly exceeded the force that even you claim the impacted floor structure was capable of withstanding. Bazant and Zhou did that long before me, as have many others.You started out well but finished off with a bad turn.
The shock load is what is necessary to break and fail the lower structure and accelerate it. It occurs due to this is happening not after. After being broken and failed the floors and columns will not continue to exert a significant upward force. In order for the shock to be of sufficient magnitude there must be a significant amplification of the insufficient static load and this requires deceleration and velocity loss. If this did not happen it means the lower structure was broken before impact.
I have already calculated that the force exerted by the descending upper section greatly exceeded the force that even you claim the impacted floor structure was capable of withstanding. Bazant and Zhou did that long before me, as have many others.
Are you arguing that the "sufficient magnitude" required to break the floors and columns has units of impulse (equivalently, momentum)? If so, I could repeat a simple counterexample you ignored in another thread.
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To actually break the structure below with the static load mass it which was designed to handle several times over,.
So your expert engineering paper based on a paranoid delusion conclusion can't get published but the erroneous paper based on real math, physics and engineering is published.It sounds like you really should do some reading on shock loading and stress before attempting any calculations.
Bazant and Zhou used energy calculations to make their point but only accounted for a small portion of the energy dissipation. Their paper is erroneous for this and a couple of other reasons I mentioned earlier.
Were the floors designed to handle that weight or was that the perimeter columns?
Each floor could take a 29 million lb. static load at its connections. The upper section of WTC 1 weighed approximately 69 million lbs.
The core and perimeter columns at the collapse initiation area could take at least three times that load.
Are you one of those who believes the upper section of the building missed all of the columns and just fell on the floors at the start of the collapse?
Each floor could take a 29 million lb. static load at its connections. The upper section of WTC 1 weighed approximately 69 million lbs.
The core and perimeter columns at the collapse initiation area could take at least three times that load.
Are you one of those who believes the upper section of the building missed all of the columns and just fell on the floors at the start of the collapse?
And around and around we go!
It's like some kind of memory impairment...
Again, the floors can only take that much load if it takes all the connections failing to break that floor. That will never, ever happen.
Again, if as little as 5% of the upper mass lands on the next floor, and does so with no velocity at all, it will fail the floor. Through sheer weight. And once that floor goes, the entire integrity of that story is gone.
Again, you are running from questions. That's the only non-insanity/troll reason there can possibly be for you to go in circles like this. Small circles, even.
You will never ever get a model to fail the way you propose the towers did.
All structures require a load amplification to use the insufficient static load above to break up the structure below.
This load amplification requires deceleration and velocity loss which isn't observed in the towers.
The stories immediately below and above the initiation floor had little to no damage so it is obvious the structure was weakened before the collision took place.
Your attempt to use the tilt to eliminate the need for a load amplification and deceleration above 1g is a joke.
So the towers can't fall, the FDR can't be missing data, the check is in the mail, the titanic can't sink, and your paper is real engineering.You will never ever get a model to fail the way you propose the towers did.
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Your attempt to use the tilt to eliminate the need for a load amplification and deceleration above 1g is a joke.
Dodge. Pathetic.
False.
Many possible confounds. Explained to you a million times.
By fire, and by damage to the global structure. Everyone in the freaking world knows this.
It was pointed out to you by your own hand-chosen reviewer before it ever saw the light of day. In response, you published anyway and ostracized the reviewer from your pathetic organization. Who's the "joke," again?
Answer the questions. Why will you not even attempt to publish this?
What evidence do you have for a vast engineering conspiracy that will automatically turn down your paper?
What do you intend to do, other than repeat your nonsense on unsuspecting message boards?
Who cares about your crap?
In reality I would like to believe that the collapses actually occurred the way you propose they did. Unfortunately, my training and experience prevent me from doing that.
The NIST/Bazant explanation and what you propose simply do not work so I am obligated to say it, even though I do not take pleasure in a protracted, sometimes testy, debate with a fellow engineer.
I have also grown quite tired of this message board debating and intend to look for other avenues in which to apply my efforts to see reality brought out into the open on this issue.
I have also grown quite tired of this message board debating and intend to look for other avenues in which to apply my efforts to see reality brought out into the open on this issue.
In reality I would like to believe that the collapses actually occurred the way you propose they did. Unfortunately, my training and experience prevent me from doing that.
I have also grown quite tired of this message board debating and intend to look for other avenues to see reality brought out into the open on this issue.
Just what do you think the retired civil engineering professor was? I'll give you a hint *****, civil engineers are structural engineers. The guy probably forgot more than the likes of you will ever know judging by your nonsensical comments and audacity. I seriously doubt you had three years of engineering courses as you don't seem able to handle the details. I think you are nothing more than an anonymous **********.
Edited due to lack of civility, breach of Rule 10.Replying to this modbox in thread will be off topic Posted By: Locknar