Tilted Forum Project Discussion Community  

Go Back   Tilted Forum Project Discussion Community > The Academy > Tilted Paranoia


 
 
LinkBack Thread Tools
Old 07-10-2007, 11:54 AM   #41 (permalink)
... a sort of licensed troubleshooter.
 
Willravel's Avatar
 
Quote:
Originally Posted by ObieX
I didn't say that the top floor would/did evaporate. That wouldn't make much sense. Floors 1-80? Probably crushed into a fine powder.
You're seeing powder being forced out of the top floors in the picture linked.
Quote:
Originally Posted by ObieX
Not really. The fire is on the inside and heat travels up. So people near the holes could be fine while the fires behind them blaze up into the floors above them. I'm sure they wouldn't have been hanging out of that hole if it was pleasant inside.
That's interesting, but the fire died down quickly after the explosion. Even Dilbert, my eternal 9/11 conspiracy foe, has agreed that the et fuel burned maybe 10 minutes. All the fire after that was office furniture that was required to meet fire code. What this means is that the same types of fires that have happened in every other steel reinforced building in history (none of which have ever collapsed due to fire) were what caused a collapse in a building designed to be hit by a plane and have a sever fire? That seems rather odd. In addition to that, the picture shows that the building did not give at the crash point, where one would assume the impact damage would have effected the strength of the building. It started collapsing from the top. Admittedly, this is difficult to see in the videos, but the picture linked above is from a video and when it's slowed down enough, one can see that before the point of impact gives, the top begins to collapse. This would assume that the heat at the tope of the building was harder on the building than a Boeing 747-200 crash and subsequent fire.

Again, this is counterintuitive.
Quote:
Originally Posted by ObieX
I don't see how it would be very little heat when it was jet fuel burning. That alone suggests that it was rather hot. If the metal supporting the inside weakened enough it would begin to collapse inward and down, pulling the roof down since all that is connected in there. Once the one floor goes and falls onto the weakened floor below that one will go, then you have 2 stories worth of weight compacting on a 3rd weakened floor etc.. At some point soon after that the floors don't need to be weakened due to all the extreme weight.
The jet fuel burned for only a few minutes, at a temperature not only not hot enough to melt steel, but to even weaken it in any meaningful amount, and then all that was burning was paper, chairs, desks, carpet, etc. These all burn relatively cold. Not only that, but you're talking about heat from a small fire in only one place in the building spreading across an amazing amount of steel, and not just rising, but spreading in all directions. I would ask why you think that steel far away from and above the fire would be hotter than the steel at the fire.

I understand the idea of pancaking, or the possible domino effect of collapsing floors. I don't know if there's a reasonable explanation as to how the pancaking originated.
Willravel is offline  
Old 07-10-2007, 01:03 PM   #42 (permalink)
Pickles
 
ObieX's Avatar
 
Location: Shirt and Pants (NJ)
OK, well, I'll try to explain my reasoning a little more. Its a little hard to explain so bear with me :P

Lets start from the beginning.

1. Plane zooms in and impacts the building.

What happens?

A) Large parts of the outside of the building are destroyed. The building was constructed in such a way that the outside parts are a major part of the support system (main core, inside support steal, outside frame). Less some support the inside supports are now strained more than usual.

B) The plane continues through, stripping the steel inside of it's fire protection, leaving it directly exposed.

C) Flaming jet fuel is shot through multiple entire floors, coating the exposed steel and everything else inside with blazing death.

Misc) Further damage due to force of impact unclear.

2. Jet fuel burning on multiple floors

A) The fire is burning directly on exposed steel support beams. Heating them up VERY quickly. Parts of the steel expand as they are heated. Some parts connected to those beams may not heat as quickly. Expansion rates are now really out of whack further weakening the already weakened building.

B) The fire may also be effecting other parts of the support structure. Flames can be seen pouring out of the large holes further weakening the outer support frame.

C) Liquid fire pours into elevator shafts and some (now severed) stair wells. further spreading the heat.

D) Flames burn through to floors above, spreading the heat even more and weakening more areas.

E) Flame slowly dies out after a few minutes, leaving some areas of the steel support beams red hot, others not so hot. some parts are still at the same temperature.

Now these beams are all out of whack. Not only are they expanded in some areas and not in others, they are also now supporting extra weight from the parts of the outer frame that is now extremely damaged. Some parts of those beams are now starting to cool off while others are still blazing hot which further weakens the already delicately balanced structure. Its not just the heat that the steel beams have to deal with, they're holding up many tons of weight as well. Now these beams are dealing with both of those factors.

The force of impact itself could have shaken things enough to cause major structural flaws. Perhaps some of the rivets holding some beams in were popped right out? There's many many tons of stress on those rivets, and that was one powerful impact.

3. Added factors.

A) WIND - At that height the wind is always whipping and blowing like a mofo. Normally skyscrapers sway in the wind. That is a lot of added stress, and should not be taken lightly. No matter how calm it may seem at ground level it is a totally different story 100+ floors into the air.

B) (for the second tower to fall) Added stress from the first tower falling (obviously).


Alrighty.. So now we have a tower blasted into, outer support severely weakened.. inner supports also feeling the force of impact.. extremely hot fires directly on exposed metal supports that are already under extreme stresses due to weakened support in other areas.. the expansion and contraction of those stressed beams.. and on top of all that the wind causing the tower to sway. If you ask me thats one giant recipe for disaster.

Ok now for the collapse part. http://www.youtube.com/watch?v=OOsQpJ1DzsQ When i look at that i see it buckling at the point of impact. Thats a nice angle.
When you look at the top floors before the collapse you see a lot of smoke pouring out, that is what is being flushed out during the collapse at the top. and when the building starts to compact and fall you see the outer concrete blasted out which rains down. You can see just looking at it that a large portion of it was just shaken and crushed into dust.

When you see video of the collapse at ground level you'll notice that everyone in the street is running from a MASSIVE debris cloud that is like 15-20 stories high and expands out over an extremely large area. Thats a lot of debris. so its not all sitting nice and neat in the footprint.

Well, that was a lot of rambling. I'm not sure what i accomplished there hehe. I hope it explains what i think was going on there tho.
__________________
We Must Dissent.
ObieX is offline  
 

Tags
9 or 11, clues, film, groundbreaking, september


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 05:25 PM.

Tilted Forum Project

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
© 2002-2012 Tilted Forum Project

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360