Sat. Jul 27th, 2024

The experts reassure that even in the event of an earthquake, skyscrapers are safe to be in.

By ki0nk Apr8,2024
News

(New York) On Friday, the ground beneath New York City, which is home to well-known buildings such as the Empire State Building and One World Trade Center, rumbled. Experts in engineering claim that skyscrapers are constructed with sufficient flexibility to resist moderate shaking, despite the fact that buildings that are taller than one hundred storeys may appear to be particularly susceptible to earthquake destruction.

The earthquake with a magnitude of 4.8 that occurred on Friday morning was located approximately 45 miles (72 kilometers) west of the city in New Jersey. Aftershocks followed, culminating in an earthquake of 2.5 magnitude that occurred early on Saturday morning. However, there have been no reports of significant damage to the city’s public transportation infrastructure or any of its 1.1 million buildings.

Friday was the day that the operators of the landmark Empire State Building, which is 103 stories tall, posted the message “I AM OKAY” on the building’s account on the social network X.

According to Elisabeth Malch, managing director of Thornton Tomasetti, a New York engineering firm that has completed major work on the Empire State Building, the Chrysler Building, and the Brooklyn Bridge, among other major city landmarks, New York’s skyscrapers have generally been built to withstand winds and other impacts that are significantly greater than the earthquakes that are typically seen on the East Coast of the United States.

It is quite improbable that the earthquake that we are designing (the structures) for will actually occur. She went on to explain that it is an occurrence that takes place once every thousand years. Therefore, we do not anticipate that it will occur more frequently than once every thousand years.

Skyscrapers are built to swing very slowly and lightly in order to guard against tremendous hurricane-force winds, as stated by Ms. Malch. This is because skyscrapers are meant to be less susceptible to earthquake activity than shorter structures.

According to her explanation, taller buildings are simply more flexible because they are built to resist the push and pull of wind. She explained that the push and pull of wind has a greater influence on tall buildings than the press and pull of an earthquake. Therefore, regardless of the time at which they were conceived, they are constantly being tested by the wind. To ensure that they are both sturdy and flexible enough to resist earthquakes, this is a double inspection being performed.

Ahmad Rahimian, executive vice president of the engineering firm WSP Global, which participated in the construction of One World Trade Center, the tallest building in this hemisphere, and The Shard in London, the tallest building in Europe, stated that even the oldest skyscrapers are made of concrete and high-strength steel because it is necessary for them to be able to withstand the gravitational load that is exerted on massive structures.

“In the event of an earthquake, high-rise buildings have the potential to be among the safest places,” he stated.

Borys Hayda, managing director of DeSimone Consulting Engineering, a New York firm that is involved in the renovation of some of Manhattan’s major hotels, theaters, and other iconic buildings, stated that more modern skyscrapers also have shock absorbers on their roofs. These shock absorbers can help balance sway and help absorb any shock that may be caused by extreme events.

“Even though there is only a small possibility of earthquakes here in New York, we as engineers must design for all types of hazards,” he said. These dangers include earthquakes, tornadoes, and floods.

THE NEW YORK CITY — New York City, which is home to well-known buildings such as the Empire State Building and One World Trade Center, was the location of the earthquake that occurred on Friday. In spite of the fact that structures that can reach more than one hundred stories may appear to be particularly susceptible to earthquakes, engineering experts assert that skyscrapers are constructed with sufficient flexibility to endure reasonable shaking.

An earthquake with a magnitude of 4.8 occurred on Friday morning in New Jersey, and its epicenter was located approximately 45 miles (72 kilometers) west of the city. According to statements made by New York Governor Kathy Hochul on Saturday, there have been at least 25 aftershocks since the earthquake, some of which have been felt in New York City. However, there have been no reports of significant damage to the city’s roadways, public transportation infrastructure, or the 1.1 million buildings that it contains.

On Friday, the operators of the landmark Empire State Building, which is located on 103 floors, posted the message “I AM FINE” on the building’s X account.

According to Elisabeth Malsch, a managing principal at Thornton Tomasetti, a New York engineering firm that has done major work on the Empire State Building, Chrysler Building, and the Brooklyn Bridge, among other major city landmarks, New York’s skyscrapers have generally been built to withstand winds and other impacts that are significantly greater than the earthquakes that are typically seen on the East Coast.

“We are designing for an earthquake that is extremely unlikely to occur,” the architect said. “It’s an event that is a thousand years old,” she explained. As a result, we do not anticipate that it will occur more frequently than once every thousand years.

According to Malsch, skyscrapers are designed to sway ever so slightly and slightly in order to protect themselves against severe winds that are equivalent to hurricane force. This is done in order to make them less sensitive to the ground-shaking action of earthquakes than shorter structures.

According to her explanation, “Taller buildings simply have a greater degree of flexibility because they are designed to withstand the force exerted by the wind, which has a greater impact on tall buildings than the force exerted by an earthquake.” Because of this, the wind is constantly putting them to the test, regardless of when they were created. This serves as a double check to ensure that they are resistant to earthquakes and have the flexibility to withstand them.

An executive vice president at the engineering firm WSP Global, Ahmad Rahimian, who was involved in the construction of One World Trade Center, which is the tallest building in this hemisphere, and The Shard in London, which is the tallest building in Europe, stated that even the oldest skyscrapers are made of high-strength concrete and steel because it is necessary for them to be able to withstand the gravitational load that is placed on the massive structures.

According to what he claimed, “high-rise buildings can be one of the safest places you can be whenever there is an earthquake.”

According to Rahimian, the buildings that serve as the foundation of New York City are often constructed to withstand earthquakes of magnitude 6.5 or higher.

According to Borys Hayda, a managing principal at DeSimone Consulting Engineering, a New York firm that has been involved in the renovation of some of Manhattan’s major hotels, theaters, and other landmark buildings, more modern high-rises also have dampers located on their roofs. These dampers can help balance the sway and help absorb any shock that may be caused by extreme events.

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By ki0nk

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