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Old January 28th, 2012, 04:11 PM   #29681
Nexis
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From Jersey City

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Old January 28th, 2012, 04:31 PM   #29682
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As you get above the friction of the earth and other buildings the wind speeds rises. It can very easy be double from ground level. Here is a link I check reguarly that gives an indication of what winds at 1000 ft and 1500 ft are forecast to be at LGA.

http://www.erh.noaa.gov/zny/n90/images/LGA_WINDS.png



Alan
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Old January 28th, 2012, 04:44 PM   #29683
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FROM: NYBOY75

http://www.youtube.com/watch?v=FX7wZf-jRr0

Hope you enjoy my video's, take care and have a great weekend everybody.
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Old January 28th, 2012, 08:21 PM   #29684
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Quote:
Originally Posted by NYBOY1975 View Post
FROM: NYBOY75

http://www.youtube.com/watch?v=FX7wZf-jRr0

Hope you enjoy my video's, take care and have a great weekend everybody.
Wooww... Very nice. This zoom is unbelievable.
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Old January 28th, 2012, 08:34 PM   #29685
tim1807
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No need for zoom with this tower
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Old January 28th, 2012, 11:03 PM   #29686
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FROM: NYBOY75

http://www.youtube.com/watch?v=lnCYj4vDl3M
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Old January 28th, 2012, 11:22 PM   #29687
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http://www.observer.com/2012/01/more...-upper-floors/

More Green Shoots at 1 World Trade Center: Law Firm Chadbourne Eying Upper Floors

Daniel Geiger is a reporter for The Commercial Observer

"The law firm Chadbourne & Parke is rumored to be checking out space at 1 World Trade Center. A report in The New York Times today hinted that a deal is close, but brokers familiar with the firm pointed out that a lease was far from done..."

"...The law firm is in the market for between 250,000 and 300,000 square feet and is looking at space in the symbolic 1776-square foot tower’s upper tier or midrise..."
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Old January 28th, 2012, 11:52 PM   #29688
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FROM: NYBOY75

http://www.youtube.com/watch?v=QHCEZb8AbTM


FROM: NYBOY75

http://www.youtube.com/watch?v=oHhYDulHW8I

Last edited by kanye; January 29th, 2012 at 01:40 AM.
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Old January 29th, 2012, 01:22 AM   #29689
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Quote:
Originally Posted by Kanto View Post
This is a very interesting question and I'd love to get an answer on it from somebody with engineering skills. In my amateurish opinion it all depends on the positioning of the buildings arround the building you're talking about. I made a small pic to show what I mean. In the first model the wind load is smaller than normal because the surrounding buildings block the wind from applying a direct load on the building we're speaking about. In the second model the wind load is larger than normal because the wind is able to blow directly on to the building made faster by the channeling effect
Kanto, the wind tends to generally increase in velocity as you get further from the ground because near the ground, the friction with the surface, trees and buildings slows the air flow down. Between buildings, the wind tends to accelerate because when the air gets squeezed into a narrow channel, it tends to speed up. This is often called the 'canyon effect'. In addition to that, tall buildings tend to cause wind vortices. In some cases, such as the Hancock Tower in Boston, it can have very significant effects. This is why wind simulations are an integral part of both the building design and permitting process.

As to clusters of tall buildings, it could be either good or bad, because if the project is not well designed, the open spaces in between could feel like wind tunnels!
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Old January 29th, 2012, 01:26 AM   #29690
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Taken by me last night:

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World Trade Center Progress, January 2012 by beanhead4529, on Flickr
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Old January 29th, 2012, 02:09 AM   #29691
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WOW great picture of the tower..it has grown allot since i visited this forum the last time !
Its a fact New York is allways exiting
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Old January 29th, 2012, 04:26 AM   #29692
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that is a nice picture.
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Old January 29th, 2012, 06:32 AM   #29693
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Couple of days ago I was in NYC, tower looks great. It started to make its impact on the skyline. Just awesome.
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Old January 29th, 2012, 07:39 AM   #29694
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A tiny sliver of 3WTC is visible in that above shot. Fun fact.
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Old January 29th, 2012, 12:57 PM   #29695
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Quote:
Originally Posted by beanhead4529 View Post
What a pic!
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Old January 29th, 2012, 01:07 PM   #29696
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WOW in makes wonderful skyline.
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Old January 29th, 2012, 01:42 PM   #29697
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Quote:
Originally Posted by Ajaypp View Post
Kanto, the wind tends to generally increase in velocity as you get further from the ground because near the ground, the friction with the surface, trees and buildings slows the air flow down. Between buildings, the wind tends to accelerate because when the air gets squeezed into a narrow channel, it tends to speed up. This is often called the 'canyon effect'. In addition to that, tall buildings tend to cause wind vortices. In some cases, such as the Hancock Tower in Boston, it can have very significant effects. This is why wind simulations are an integral part of both the building design and permitting process.

As to clusters of tall buildings, it could be either good or bad, because if the project is not well designed, the open spaces in between could feel like wind tunnels!
Thanks for the info
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Old January 29th, 2012, 03:06 PM   #29698
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Quote:
Originally Posted by beanhead4529 View Post
Great shot.

I guess only a few more stories are left before the tower tops out (excluding the spire).
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Old January 29th, 2012, 03:50 PM   #29699
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IMG_7919 by sdettling, on Flickr

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Towers by BSEinBrooklyn, on Flickr

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World Trade Center - Kiss the Sky by jonmsilver, on Flickr
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Old January 29th, 2012, 04:04 PM   #29700
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Freedom Tower, Steam (alternate) / IMG_5492 by alba, on Flickr
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