Understanding the core floor layout

[GlennB]

Taking this as an example :

What is the exact significance of the light areas?

On the surface the diagram suggests these columns were enclosed together in a large 'void', such that a large number of columns could be accessed from one entry point.
Was this the case?

And, as a matter of interest, were the columns clad in anything apart from the fireproofing?

(just priming myself with information here, in case I should need it ... )

 

[defaultdotxbe]

the light areas appear to be open areas (hallways or walkways) while the dark are walled off

i woudl assume the explosed columns (ones in the light area) were surrounded by drywall just for aesthetic purposes, the ones int eh dark area probably just had the fireproofing

 

[Bell]

Early warning:

Stay out of this thread, Christophera!

 

[Hellbound]

Just to point out, the dark areas are labelled as "for elevators and other services". This would not be a large void, but would be full of electrical conduit, plumbing, HVAC shafts, elevator shafts and motors, and the other behind-the-scenes equipment to make the building function. I doubt more than (at most) a couple columns could be accessed from any one location, although this is simply a semi-educated guess

 

[uk_dave]

At first glance it looks like you have a plan showing ONLY the WTC core area, rather than the entire floorspace.

The shaded areas seem to indicate areas where the floor trusses would be trimmed to allow service and elevator shafts to pass up through them.

I've no info on the fireproofing, but I wouldn't be surprised if it wasn't in the form of layers of plasterboard (or sheetrock to you colonials) ehich would then have been decorated to look pretty.

The elevator shaft walls would be fairly substantial to accomodate the stresses of cars moving up and down and to reduce noise transmission.

 

[Arkan_Wolfshade]

These should contain the needed info:
NIST NCSTAR 1-1: Design, Construction, and Maintenance of Structural and Life Safety Systems

• NIST NCSTAR 1-1A: Design and Construction of Structural Systems
  • 1-1A appendixes A & B
  • 1-1A appendixes C-G
• NIST NCSTAR 1-1B: Comparison of Building Code Structural Requirements
• NIST NCSTAR 1-1C: Maintenance and Modifications to Structural Systems
  • 1-1C appendixes

ETA: all from here http://wtc.nist.gov/oct05NCSTAR1-1index.htm

 

[Architect]

Professionally speaking, the drawing has insufficient information in order to draw much - indeed anything - in the way of firm conclusions about voids (or otherwise).

 

[GlennB]

These should contain the needed info:
NIST NCSTAR 1-1: Design, Construction, and Maintenance of Structural and Life Safety Systems

• NIST NCSTAR 1-1A: Design and Construction of Structural Systems
  • 1-1A appendixes A & B
  • 1-1A appendixes C-G
• NIST NCSTAR 1-1B: Comparison of Building Code Structural Requirements
• NIST NCSTAR 1-1C: Maintenance and Modifications to Structural Systems
  • 1-1C appendixes

ETA: all from here http://wtc.nist.gov/oct05NCSTAR1-1index.htm

Aaarrgghhh. Damn your eyes, Wolfshade !

There goes my "nice chilli dinner followed by a film on TV with my wife, accompanied by some mulled wine and maybe a brandy or three and the leftover Xmas cake. Plus the huge bag of cashew nuts."

Although - we have this already :

 

[JimBenArm]

Aaarrgghhh. Damn your eyes, Wolfshade !

There goes my "nice chilli dinner followed by a film on TV with my wife, accompanied by some mulled wine and maybe a brandy or three and the leftover Xmas cake. Plus the huge bag of cashew nuts."

Yum. Dinner at GlennB's tonight, everybody!

 

[GlennB]

Yum. Dinner at GlennB's tonight, everybody!

All welcome! Bring a bottle.
I'll mince a herd of cows and get them cooking ....
(did you know a new World-Record-for-hotness chilli was quite recently grown in Dorset, England??? )

Meanwhile, some more "just slap on some thermite" reality :

 

[defaultdotxbe]

All welcome! Bring a bottle.
I'll mince a herd of cows and get them cooking ....
(did you know a new World-Record-for-hotness chilli was quite recently grown in Dorset, England??? )

wait, you got those mad-cow cows over there dont you?

 

[Architect]

wait, you got those mad-cow cows over there dont you?

He means Chilli Peppers, not the Mexican beef dish ya eejit!

And no, we have no more BSE....we exported it all (cf. PD'oh, 28th, Se7en, Remove Bush, etc).

 

[GlennB]

wait, you got those mad-cow cows over there dont you?

These days they're just a little miffed.

 

[JimBenArm]

He means Chilli Peppers, not the Mexican beef dish ya eejit!

And no, we have no more BSE....we exported it all (cf. PD'oh, 28th, Se7en, Remove Bush, etc).

'splains a lot of things!

 

[rwguinn]

He means Chilli Peppers, not the Mexican beef dish ya eejit!

And no, we have no more BSE....we exported it all (cf. PD'oh, 28th, Se7en, Remove Bush, etc).

Just put down the beans ans back slowly away from that pot, compadre..
There you Brit/UK'ers go, putting extra letters in stuff again. At least it was a consonant this time, instead of a "u"
Chili is the red or green fruit-thang what has lotsa hot stuff in it.
Chilli has meat and other stuff, as well as chilis in it.

As a native New Mexican, I am one of the authorities on this subject.

 

[njslim]

All welcome! Bring a bottle.
I'll mince a herd of cows and get them cooking ....
(did you know a new World-Record-for-hotness chilli was quite recently grown in Dorset, England??? )

Meanwhile, some more "just slap on some thermite" reality


Actually guy on New Jersey shore claims to have invented hottest sauce
using extract from habenero pepers - supposedly rates at 16 million heat
units! For comparison jalepeno normally rates 1000-2500 units, tabasco
about 5000 and habenero 7500-10000. Claimed single crystal size of pin
head placed on tongue is like being hit in mouth with sledge hammer.

 

[Architect]

Actually guy on New Jersey shore claims to have invented hottest sauce
using extract from habenero pepers - supposedly rates at 16 million heat
units! For comparison jalepeno normally rates 1000-2500 units, tabasco
about 5000 and habenero 7500-10000. Claimed single crystal size of pin
head placed on tongue is like being hit in mouth with sledge hammer.

1. How often has he been hit in the gob with a sledgehammer then?

2. Lets do our own test on some of the CTers - just askin quenstions...

3. Can it burn through steel?

 

[uk_dave]

3. Can it burn through steel?

No, but it probably feels as if it could the morning after!