View of the WTC Lobby and the closely-spaced external columns, 1 - TopicsExpress

View of the WTC Lobby and the closely-spaced external columns, 1 and 2 World Trade Center used the so-called tube within a tube architecture, in which closely-spaced external columns form the buildings perimeter walls, and a dense bundle of columns forms its core. Tall buildings have to resist primarily two kinds of forces: lateral loading (horizontal force) due mainly to the wind, and gravity loading (downward force) due to the buildings weight. The tube within a tube design uses a specially reinforced perimeter wall to resist all lateral loading and some of the gravity loading, and a heavily reinforced central core to resist the bulk of the gravity loading. The floors and hat truss completed the structure, spanning the ring of space between the perimeter wall and the core, and transmitting lateral forces between those structures.

Ho ho ho! It doesn’t matter whether you’ve been naughty or

Hello to all of you who are on my list of contacts of Facebook. I

Details:- ALL BRAND NEW PARTS Theres plenty you can get done in

Sealcoating not only beautifies your investment in your asphalt

The Economic, Social and Cultural Cooperation Fund for the

by Shefali Vaidya SATIRE.... OR TRUTH????? Congress

Nothing to do in Amarillo? We beg to differ.. 10 in 10: The 10

Back To School Deal Dell (TM) Inspiron 15R (i15RMT-12439sLV)

RBCII HEAD OFFICE Schedule of Seminars for the period of July

I fear any religion who says Adam came from a clot of blood. a

Moody scores in SO to lift Remparts over Sea DogsSAINT JOHN, N.B.

To my friends praying for Lamias mama, Lamia and Jeremy and the

“O’ Mom – Message From A Daughter” O’ Mother, your

All the bons bons are out and there is a festive feel in the air.

FOR SALE, due to no fault of his own. ‘Benny’ 7yr old

Flash Flood Watch issued December 27 at 1:41PM CST until December

Movies to watch! Edge of Tomorrow. Ground Hog day while fighting

FROM THE NEWSROOM: CLINTON, Conn. (AP) — Police have found a

Last month saw the first ever World Youth Rhino Summit held in

Dalam Al Qur’an kata jujur dibahasakan dengan istilah shadaqa

Visiones críticas de la reunión de Francisco con Gustavo

The Affluence of Incohol I had eighteen bottles of whiskey and