New York and the SkyscraperGB Post and the protoskyscraperCorporate headquarters and the race for the skyThe role of code and zoning regulationsModern New York skyscrapers, Architecture and structure

1870-1901

New York,Post

Chicago,Root

First Equitable Building

George Browne Post(1837-1913)

Western Union Building1875230 feet tall

www.structurae.de N. Janberg

1901- 1931

1908Singer Building612’

Met Life

Woolworth792 feet

Chrysler Building19301046 feet

The Modern Era

www.structurae.de HABS

www.structurae.de J. Daviluswww.structurae.de HABSwww.structurae.de J. Davilus

www.structurae.de J. Davilus

www.structurae.de P. Wahlin www.structurae.de N. Janberg

World Trade Center19771368 feet

gravity loadupper stories

lobby

transfersystem

Green skyscrapers of the 90’s-00’s

Modern towers of the 90’s and 00’s

Hearst Tower

Arch: Norman FosterEng: Cantor Seinuk

Try to describe the load path for gravity forces in this structure. Comment on advantages and disadvantages

New World Trade Centeroriginal proposal

New World Trade Centeras-built

David Childs andSOM

80 South StreetSantiago Calatrava

ProposedPlans abandoned

Repurposing the waterfront

WilliamsburgBridge

BrooklynBridge

WilliamsburgBridge

RefineryBuilding

RefineryBuilding

Building A Building B

Building D

Building E

What do each of the new buildings have in common?

What are the technical challenges in connecting buildings at such heights?