@Clayton Moore.
Clayton I posted a comprehensive explanation for your assistance and because I enjoyed writing it. You can either take advantage of it or continue evasive games. I will challenge your response briefly:
You repeat this question Where the word "perpendicular" is undefined and you do not say which columns you refer to. However you reference my comment about Perimeter Columns where I said So I am referring to perimeter columns therefore you are also.
You say: So please say which fact I asserted do you allege is wrong. Here are the separate facts I called on:
a) The perimeter columns were left standing
b) with bracing removed.
c) They would fall over
d) for one of several reasons
e)-- impacts from the descending ROOSD process,
f) instability or vibration following ROOSD descent OR
g) simply Euler buckling due to unsupported column of hight/slenderness far in excess of critical length.
h) The key causal issue is "Removal of Bracing"
i) the rest follows automatically.
So which of those nine separate assertions of fact do you claim is wrong and explain why you assert that it is wrong.
Then, if you want to switch from addressing my claim to making one of your own, feel free to make your own claim. My post gives you an example of the level of precision and detail that is required. It is not a trivial task - are you up to it - I've shown that I can do it - can you? And I will not engage in trading "JAQing off" over trivia.
As for the remainder of your post here are some brief comments:
What are you attempting to support by this reference? I cannot respond if you don't make explicit what you are trying to say.
already explained in my post. My emphasis was that the falling core part of Top Block takes out the horizontal beams because the question you asked was about horizontal beams. I responded to your question. But the same principles apply to cross bracing. The argument is simple. The main strength against vertical loads was in the columns. The columns were bypassed. Everything else other than columns was too weak to withstand the falling weight for the reasons already given in the previous post. What part of that chain of reasoning do you disagree with? Why?
Read what I said. It is nothing to do with erratic. And each floor level would be stripped out as the debris + Top Block worked its way down. Respond to what I said - stop trying to change to a different scenario UNLESS you post your own complete explanation. It will need to be better than mine.
What is the relevance of the image? What are you trying to say by posting it?
And??? Where did I say otherwise? In fact where did I even get to discussing it?
I don't have to concede anything. Especially since the comment is irrelevant. Why do you make it? What part of my explanation are you addressing.