Thousands of commuters stared up, gasping in amazement. Exuding confidence in his minute show, the tightrope artist laid down on the wire, knelt down on one knee, talked to seagulls and teased police officers waiting to arrest him. Using his pound, foot-long balancing pole, he crossed between the tallest buildings in the world eight times before stopping when it started to rain.
On September 11, , seismologists in 13 stations in five states—including the furthest in Lisbon, New Hampshire miles away—found that the collapse of the South Tower at a. Measurements for the North Tower collapse half an hour later: 2. But if you see something that doesn't look right, click here to contact us!
Twice a week we compile our most fascinating features and deliver them straight to you. Live TV. This Day In History. History Vault. Recommended for you. World Trade Center. Remembering the World Trade Center Bombing. This plan featured five skyscrapers placed in a semi-circle around a memorial on the site of the original towers.
Libeskind's masterplan was greatly altered over the following years, while there were calls to rebuild the Twin Towers, including a Donald Trump -backed plan that suggested an almost identical design to Yamasaki's original buildings.
The plan that was finally instigated included five skyscrapers designed by SOM and Pritzker Architecture Prize winners Richard Rogers , Fumihiko Maki and Norman Foster , alongside a memorial, museum transport hub and performing arts centre. The first of these structures to complete was the National September 11 Memorial , which opened on the ten year anniversary of the attack in Winner of an international design contest, the memorial by Michael Arad and Peter Walker consists of two recessed pools that mark the site of the fallen Twin Towers.
Below the memorial, an underground museum designed by US studio Davis Brody Bond contains 40, images and 14, artefacts from the attack. Following the opening of the memorial, the surrounding skyscrapers were finished, with Maki's foot-tall metre-tall 4 World Trade Center completing in This was followed in by the completion of One World Trade Center.
Designed by American studio SOM, the building is the centrepiece of the redevelopment. Officially the tallest building in the western hemisphere , the skyscraper rises to a height of feet metres to commemorate the year of America's independence. It is currently the sixth tallest building in the world. Two further skyscrapers are planned for the site. The tallest of these is 2 World Trade Center, which will rise to 1, feet metres. The site will be complete with the feet metre tall 5 World Trade Center skyscraper, which is being designed by US studio Kohn Pedersen Fox and is set to complete in Alongside these skyscrapers, several other structures are being built on the site including the World Trade Center Transportation Hub designed by Spanish architect Santiago Calatrava , which opened in The Port Authority chose Yamasaki based on his proposal to design a vast trade center that still had the intimate, human-focused qualities of his other designs.
Perhaps motivated by self-interest as well as concern, a group of leading New York City real estate developers unsuccessfully challenged the Port Authority to scale down its proposal for the World Trade Center beginning in Led by Lawrence Wien, an owner of the Empire State Building, the Committee for a Reasonable World Trade Center joined a growing number of critics arguing that the twin towers would be unstable at such a massive height—and unsafe in the case of an airplane collision or fire.
Constructing what was then the tallest building in the world posed one of the most challenging foundation projects ever faced on the island of Manhattan. The chosen site for the project was built on landfill that had gradually extended the west side of Lower Manhattan into the Hudson some feet over the centuries. Building the foundation of the twin towers required digging 70 feet to the bedrock and excavating more than 1 million cubic yards of dirt.
To avoid flooding the site, workers dug a 3,foot-long, three-foot-wide trench around the perimeter of the site comprised of more than foot-long sections and filled it with a slurry made from water and bentonite, an absorbent type of clay. Because the slurry was denser than the dirt that surrounded it, it prevented the dirt from filling the trench. Steel cages some seven stories high and weighing 25 tons each were then lowered inside the trench panels and concrete poured around it, forcing the lighter slurry up and out.
0コメント