NEW YORK | One World Trade Center | 1,776' Pinnacle / 1,373' Roof | 108 FLOORS

[TouchTheSky13]

Originally Posted by chris123678

I'f I'm not mistaken, the new One World Trade center is smaller.

Floor span were 60 feet between the outer wall and core in the twins and 40 feet for the new tower

That's because the Twins had tube frame non-structural cores and relied on perimeter steel for structural support. The new tower has a structural core which is significantly larger and stronger due to safety improvements. So, yes, the smaller floor area is to be expected.

[PMadFlyer]

Originally Posted by TouchTheSky13

That's because the Twins had tube frame non-structural cores and relied on perimeter steel for structural support. The new tower has a structural core which is significantly larger and stronger due to safety improvements. So, yes, the smaller floor area is to be expected.

No, the twins' cores were structural, but were only capable of supporting a gravity load. the ends of the floor trusses were 50% supported by the core. The misinformation surround the mythical non-structural core comes from the media and even some experts referring to it as an "elevator core." over time the title was explained [falsely]to mean that the core had the sole purpose of guiding the elevators. The core stood briefly after the collapses but were not designed to stay vertical without horizontal bracing from the floors and perimeter columns. The twins' cores also contained all the bathrooms, stairways, conduits, hallways, service rooms, local plumbing. Also if there is still any doubt of the structural nature of the core, how could the floors be supported if only one end of the trusses were attached to a load path? If it weren't OT I would go further, but I want people to not be misguided. The difference is that this core can stand alone in the worst case scenario of a partial collapse of the perimeter floors.

[PMadFlyer]

Originally Posted by meh_cd

The floors were short, yes, but that was normal for the time. 10 feet and a few inches if I remember correctly, so unless you were a giant you would have had little trouble. Maybe some claustrophobia, yeah. 2 meters is only approx 6.5 feet.

The new tower has 13 foot+ ceilings depending on the floor. That is the normal for today's towers, as you said.

13'-4" for One World Trade Center and 12'-0" slab to slab spacing on standard floors. The ceilings in the twins were about 8' high and about 10' in the new tower.

[PMadFlyer]

Originally Posted by NewYorque

Don't know why construction is so slow since a few months...

Ten days since the antenna pieces are here, and they still have not yet assembled it on the rooftop.
Same with concrete base, still not covered by glass, although they had two years to do this.

Only positive aspect is that there has been no mortal accident during the construction..

let me use a metaphor to kindly explain why the "concrete base, [is] still not covered by glass, although they had two years."

Imagine you are building a house. I come in on the fourth day of construction, stand in the middle of a bare frame and demand that the walls be painted by tomorrow. There, now do you get it?

Antenna Mast metaphor:
Can you please have that lightning rod put on my house by tomorrow, I know I still have to build the roof, but I started construction a month ago, so there is no excuse.

[deepen915]

Originally Posted by NewYorque

Once 1WTC is finished, do you think office floors will look like the original "open-space" office floors in the Twin Towers ?



Notice that the floors were not tall at all.. People taller than two meters must have had difficulties to work here.

Floors are taller in 1WTC because there are 75 "real" floors, compared to 110 in the former towers.

probably not as wide open b/c of the concrete core that was not in the originals

[NYC=WTC]

Is 1wtc immune from collapsing like the original twin towers did? What kind of damage would the new tower sustain if it was attacked again like on 9/11?

[vinny_77]

Structurally, yes it is immune. It has a reinforced concrete base, 3-foot concrete walls for stairwells, elevator shafts, risers and high powered sprinkler systems. There is also high-tech soft ware to detect any abnormalities in the buildings such as unattended bags.

[NewYorque]

Correct me if I'm wrong, but the former twin towers had a particularity in their structure:
a part of the weight was supported by the exterior columns, and not 100% for the concrete core.
That's why it collapsed quite fast: the planes broke half of the columns when they crashed. Although the MAIN reason of collapsing was the heat, that softened steel.

For 1WTC, that's different:
first, the tower floors become smaller as it reaches the sky: less weight to support.
Then, it seems that concrete core is quite massive, so it will help in case of crash.

[sterlippo1]

Originally Posted by rack776

NY Guy I dont know how you manage to moderate all these forums...all I can say is thanks,

Thanks Carlos for the constant updates and everyone else hunting & posting photos,
it takes more time than you realise to do this everyday-
THANKS EVERYONE!

Everyone Have a Happy Holiday, Merry Christmas, Hanukkah, Quanza, Festivus or celebrate nothing at all,
Lets Just be good to each other all year not just at the "holidays", The only good thing post 9/11 brought
was the sense of community and helping each other out right after it happened.....we have lost that again
lets not wait for another tragedy to feel that way for our fellow neighbors again.

I also want to keep Zen Steel Dudes family in our thoughts this time of year,


-Jason

+1, great post

[PMadFlyer]

Originally Posted by NewYorque

Correct me if I'm wrong, but the former twin towers had a particularity in their structure:
a part of the weight was supported by the exterior columns, and not 100% for the concrete core.
That's why it collapsed quite fast: the planes broke half of the columns when they crashed. Although the MAIN reason of collapsing was the heat, that softened steel.

For 1WTC, that's different:
first, the tower floors become smaller as it reaches the sky: less weight to support.
Then, it seems that concrete core is quite massive, so it will help in case of crash.

The twins had no concrete core. 50% of the external floors' weight [between exterior walls and core] were supported by the steel core columns and 100% of the core floors' weight and everything on them was supported by the core columns. In other words, the core supported more weight than the exterior columns but almost none of the sheer forces. The twins were able to stand due to this shared load system for long enough after the impacts to save thousands of lives, but yes, the remaining load paths were at their limits and the heating of the steel pushed them over the edge. This tower is designed with a core that will act as a building within a building in the worst case scenario.

[NYguy]

Originally Posted by dshane73

And yet when all is done and people go to work in this building it will be just an ordinary office building.

All of the "special" things that they have done constructing it were unnecessary and wasteful.

I find this post to be unnecessary and wasteful. Everyone knows the security measures put in place were necessary, and even completed this will be no ordinary office building.




Mitch Waxman





Artistic Swag

[-Filipe-]

wow seeing the base without the black netting really sets in that this is almost complete lol preety incredible after all this time to finally be almost there !

[NYC]

Prominent appearance of the completed One World Trade Center in the short film Plurality:
http://www.youtube.com/watch?v=IzryBRPwsog

[nycaddict]

love finally seeing this tower so close to completion!

[nycaddict]

Originally Posted by NYguy

i love the view of midtown from here! do you have any info on whats going on with the base?

[VerizonTower]

Anybody gonna get a picture of the base right now?

[Spotila]

The Xmas lights... so perfect

[TechTalkGuy]

Originally Posted by NYguy

Everyone knows the security measures put in place were necessary, and even completed this will be no ordinary office building.

This tower serves as a living tribute to those who perished on 9/11/01 and the twin pools serve as a reminder of what was lost on that tragic day.

As for this tower itself, no other office tower has been built to such high standards yet.

Any company who leases office space in this tower will know that they are moving into the most secure office building in the city.

[CarlosV]

Originally Posted by rack776

Thanks Carlos for the constant updates...


-Jason

Merry Christmas!!!!!! to you too Jason


1wtc12202012 by Ceva321, on Flickr

[NYC GUY]

Why is the glass taking so long did they not get in yet cause at this rate it won't be done til june.