Structural Design Criteria for Buildings: Slabs on Grade (Engineering SoundBites)

Granite - generally heat and stain resistant and relatively easy to repair. Dark and plain colors are harder to repair repairing a plain black surface is really hard! Neolith - a new high-tech porcelain slab that is highly resistant to water, chemical, heat, and abrasion. Use PH neutral products and non-abrasive pads for cleaning. Be sure to read manufacturer's guidelines. His first job in this country was in construction. He soon became a remodeling contractor and met his future business partner.

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The Construction Institute offers individuals and organizations working in all sectors of the construction industry the opportunity to network with other professionals by participating in: Take action to sharpen your skills by participating in CI: To contact the Construction Institute directly: Have a technical question? Feel free to contact CI: Which is to say, damage you "failed to see", correct? I found it in the form it's in now, so I have no idea where it came from originally. If that means you have to take it down, then fire away. Come on climeharrd, blind Freddy can see that these guys are lunatics for asking simple questions.

What you need to do is rely more on the patriotic testimonies of those red, white and blue blooded, proud American firefighters. They are an All American unit They have no bias. Their words are god's words. I think you need to castigate these Commies for being unpatriotic too. Only discuss your experts. Shlock and awe climehard, shlock and awe!

It's in the best interests of our mighty nation that you flick the opinions of these "CT's" down to the ground where you have been taught they belong. Oh, that's right, you've put me on your ignore list!

Come out of your hole and help me fight to maintain our status quo: He was claiming building 7 collapsed into neighbouring buildings. I still fail to see any evidence of this. If it fell in its own footprint how did it do any damage to the surrounding buildings? How about the second pic? Am I cutting too close to the bone? They also managed to make 3 buildings collapse onto their footprint by flying planes into them.

I think demolition companies should just start flying old planes into buildings, to 'pull' them. You can't be hitting too close to the bone if you're not even swinging.

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You need to actually say something relevant to the discussion, not just incendiary trolls. How dare you say that about the American government!! Mar Daddy died for that flag, I love my country, my country is the greatest, my country is my father, it is my mother. Are you dissin mar mother, brother? I get very angry about that. Don't tell me my daddy and mommy killed me! How many billiions of our Tax Dollars are going in Air Defense?

Man, i want my money back. Do you post with a straight face, or are you laughing at yourself as you do it? I'm sorry but you sound childish. Don't ban me please: Don't label me a troll thankyou very much. My parodies are so lost on you comrade. I'm not here to swing at you brother I mean you no harm, it's ok.

Even the parts that don't investigate WT7, or gloss over other areas. I want to believe!!! Their theory relied on the steel melting, which was presented as fact. Well then they shouldn't have been making wild assumptions, their reasoning being that because the towers came down, then the steel must have melted. That's exactly what happened in this case. It was just an observation, as no expert should ever have claimed that the steel was melted in less than an hour. Any chance you could present this evidence of one side collapsing way ahead of the other?

You don't see the debris in the street and a hole 4 stories tall? There was no precident for an attack with our own planes.

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Let's talk about passports now Divert, phunk, you teach me so much: Our discussion forum is not a place to derive pleasure from the recreational goading of forum members. I've only heard of 1 passport found 'littered around NYC', would you care to explain why that's anomalous? Because that passport flew out of Attas Pocket, probably while Atta was hijacking the plane with the boxcutter, then the passport fell out of the flame, through the giant fireball, through the disintegrating implosions of WTC 1 2 and 7, to be found as 'evidence', intact on the streets of the NYC.

Do you have a refutation or just an animated gif? They don't have a: Lots of things flew out of the plane. The plane was travelling at mph, the initial spray of debris out the other side of the building would have been ahead of the fireball. Only coz you have such an elegant command of sentence structure "Wolverine". My argument is this: As you would be aware, 'Wolverine', these terms imply negative connotations to anyone they are addressed to. I don't think this makes for a level playing field.

And I'm sure you would respect the need for a level playing field. I don't think we, as firm believers of our government, should stoop to this level. We are above this.

Now, should I make a new thread about this? If you encounter posts which require the mods' attention, make use of the Report feature instead and we'll address the situation appropriately. Creating a new thread devoted to that topic, at present, would be ill-advised. I was afraid someone might go out with experts to examine the likely hood of a whole batch of them being found I was thinking these, experts, could draw up some data bases, do scientific tests and studies and then write up a report explaining the lack of other any other passports I was referring to his posts, which are quite clearly designed to elicit an emotional response, not actually convey any information.

You sound like a military MP. I was referring to his posts, which are quite clearly designed to elicit an emotional response, not actually convery any information. Well check out the big brain on Brad! Do you have some source saying that they found no other identifcation from the passengers?

Or are you just assuming that because only one was newsworthy that the rest of the debris simply didn't exist? I think you hit the nail on the head when you say "newsworthy" Nice goin': As such, your account has been suspended for 48 hours. During that time I respectfully suggest you become more intimately familiar with our forum rules; upon your return you will be expected to follow them and take notice when members of the forum staff ask for your compliance.

Can i become a moderator? Please understand I'm not attempting to deny you the opportunity to display images in your posts. We must err on the side of caution due to copyright issues. Since the source of the image is not known, it's in our best interests not to risk any sort of copyright violation. I'll edit your post to provide a link to the image as I've done here http: The images will still be visible for all readers and participants while satisfying our obligations.

Thanks for your understanding. I very clearly stated the reasons for my actions. If you disagree with those actions, you are welcome to contact myself or the other moderators via private message, as noted in the forum rules http: Moderator Actions If there is a rule violation, then a moderator will take action. This banning may be temporary or permanent, as outlined above.

If a moderator gives you advice, we advise you to take it. You didn't answer the question, do you have a refutation? A countries Air Defences are usualy set up to defend against an external threat. If you have a problem with the way the building fell, then perhaps you could explain, showing your math, exactly how it should have fallen? You can't say it fell wrong without knowing what 'right' would be, right? How do you know where he kept his passport? Because that's the only way I can think of that you could possibly know that.

I've just caught up - broadband problem at home. Liverpool is getting upset when the engineers described the mechanism failure as melting of steel, when of course the temperatures weren't anything like sufficient. Instead, as we all know, the steel was weakened sufficiently by the fire - however the underlying message remains sound. We're all a little loose in our terminology from time to time when presenting details to lay people - in a newspaper or television soundbite, is anyone really going to come out with a long technical phrase?

The way Liverpool et al, some of whom exhibit awfully similar characteristics to last week's sock puppets, interpret this is clearly an attempt to wind us up. Alternatively they just can't weigh up evidence in a scientific manner and we're wasting our time. Like so many areas where people lack the experience, this "passport" issue seems incredible when it is in actual fact not.

I have a video of the initial investigation of the crash of a jet fighter. I am not going to give any details so as to not cause any distress to anyone who may have been possibly involved or be a relative of the deceased. The pilot of the incident aircraft did not have time to eject before impact with the ground. The video part of the investigation shows the aircraft practically destroyed by the impact; the major portions remaining were an engine and a wing section. The recovery team were literally picking up small charred pieces of the pilot scattered all over the crash scene. The largest section recovered was a section of skull, not much bigger than your palm, and a section of the torso similarly sized.

There was also a section of his hand, still in his glove. Most pieces recovered were charred by the post-impact fire. On average, the remains were pieces an inch or so in size. Despite this, the pilot's briefing card from his kneeboard was intact, along with some personal paper items from his flight suit pocket. Despite his flight suit being all but incinerated, his squadron badge was nearly pristine.

Aircraft accidents are almost always "unique" and you cannot apply so-called "common sense" to what survives and what does not. The majority of people have neither the training nor experience to determine what is "unusual" or "anomolous". Each floor plate covers an area of 20, square feet 1, square meters that includes eight elevator banks and two enclosed, remote fire exit stairwells see floor plan.

However, the overall fire compartmentalization of each floor slab was decreased by the addition of several unrated floor panels to provide access to mechanical and plumbing systems. Five structural bays rest on four lines of columns in each direction supporting the steel deck. In effect, the concrete structure includes five stacked steel buildings, each supported by a macroslab. During the fire, two steel decks partially collapsed; other than that, there was no collapse inside the building. However, deflection in some steel beams was severe.

Just read through this "exploding" thread I think the CTers not meant in a derrogatory fashion are used to other forums where debate and decorum rules don't exist. Their "manners" need work. I saw that their political slant was showing brilliantly. Their sources are their own websites where, when something is posted enough times and linked and relinked to, it becomes reality. There is no research aside from "it looks like" and "see it with your own eyes".

I found the disparaging comments about the firefighters' observations on the state of WTC7 amusing, as these are the very same folks who they so lean on as having reported "explosions" from the towers The pic Emmanuel linked, there appears to be a standing facade to the left of the WTC7 debris I can't get my bearings on this shot The pic was obviously taken some time into the cleanup, with the cleared road in front of the pile.

I am certain it was not this neat immediately following the collapse. I don't believe our visitors have ever visited a site that actually expects evidence to back up claims, all their sites are full of high fiving and genuflecting smileys answering every post And they still cling to the OP article about melting steel, when this has been repeatedly stated to be a wrong initial speculation Emmanuel -- this in itself is the best argument put forward yet to suggest that discussing this issue with you is fruitless The way that this might happen is well known and can be easily reproduced from the smallest scale lab experiments to full scale experiments.

I leave the study and understanding of this up to the reader because it would seem foolish to attempt to teach you or anyone what has been so well documented in other sources. When you understand how this could happen I will join this discussion In the mean time I suggest you get yourself to a library forthwith Another early hypothesis about the collapse of the towers was that floor trusses or their connections to the vertical structure failed, dropping floor slabs onto those below and initiating the collapse. The detailed analysis by NIST wound up falsifying that hypothesis and leading to a theory which is both different and more congruent with the physical evidence.

That's the way the investigation of any physical phenomenon works. Hypotheses are proposed based on the available data, examined, tested and when necessary discarded to be replaced with new hypotheses which are in turn tested. The current explanation of an event is that which best conforms to the whole body of available data, and it's always subject to being falsified by contradictory evidence or modified to take into account newly developed information.

Conclusions are always provisional.