How tall were buildings in American cities 100 years ago?

The big man in the United States, it has a variety of high-tech and very advanced technology, far ahead of the world, many of the advanced instruments were invented in the United States, and many technologies were first produced in the United States, and the United States has also made a lot of very wise decisions, such as gathering and gathering talents from all over the world to work for them, like Einstein, who was originally Jewish, but was suppressed by Germany, and also fled to the United States. This is undoubtedly a huge loss for Germany.

In fact, the United States mastered the technology of building high-rise buildings more than 100 years ago, and their country also built a lot of high-rise buildings when they first mastered this technology, and many buildings are also very beautiful, but the United States does not build these high-rise buildings now, why is this? Obviously, building a higher building can also make good use of land resources, can save a lot of vacant land, and for residents, housing prices are more acceptable, so why not build in the United States?

There is a reason why the United States does not build high-rise buildings, so let's analyze it for you now. In fact, Americans and Chinese, are facing a very difficult problem, that is, housing prices, some people think that Americans are too rich, will go to the suburbs to buy villas to live, in fact, this is just the opposite, because they have no money to buy a house in the city, so they decided to go to the suburbs to buy villas to live, is it a bit unexpected? It's not that every American is rich, they also have various levels.

The United States is also the same as China, the housing prices in the urban area are simply too high, and the average person can't afford it, and now the cost of building a high-rise building in the United States is also very high, to take into account various factors, from the simplest aspect is the price of land and construction, these are to spend a lot of money, but also to take into account the problem of transportation, this is also to spend a lot of money, even if it costs so much money, not necessarily the return is very good, that is to say, you build a high-rise building may not be someone will buy, So it's better not to build it at all.

One problem to consider is technology, because when they first mastered the technology of building high-rise buildings, they built a lot of buildings, and they were full everywhere, and there was not much space left, which was relatively scattered, and it was still a bit difficult to make floors in such a small space. In fact, Americans don't care much about real estate for a long time, they pay more attention to high-tech, and they invest less in real estate, and they don't make much money.

The United States is a country that develops education. More than 100 years ago, tall buildings in the United States were erected. For example, the Empire State Building in New York is very majestic.

The United States at that time had mastered unique construction techniques. The tallest building was about 200 meters tall at that time.

100 years ago, the buildings in American cities were about 187 meters, and then there were 241 meters of high-rise buildings, which shows that the construction industry in the United States is developing very well, and the economic development rate is relatively fast.

100 years ago, the buildings in American cities were not particularly tall, but at least they were already tall, and the United States at that time was close to modern cities.

In the United States 100 years ago, the city's buildings were as tall as 187 meters. It shows that the United States has mastered advanced construction technology 100 years ago, and China did not have such a tall building at that time.

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In Western countries such as Europe and the United States, buildings have a long service life, and some houses are still alive and well for more than 100 years. Buildings in China are generally designed to have a lifespan of 50 years and a seismic rating of 7. In fact, without external causes such as major earthquakes, the service life will be much more than 50 years.

It is not a problem to live in high-rise buildings with the current frame cut structure for 100 years, but a city needs to develop and change the appearance of the city, and the general residential buildings will not be demolished for more than 30 years.

The technology of 30 years ago can no longer meet the requirements of people for housing now, so 30 years later, the advanced building technology will be outdated after 30 years, and only in the replacement of the old and the new, the authorities will have tax revenue from the real estate market.

Extended information: In a city, the most common is the high-rise buildings, the rise of high-rise buildings has witnessed the rise of a city, but also witnessed the rise of our country. However, as more and more high-rise buildings are built, and over time, high-rise buildings also begin to age, and various problems slowly appear.

Especially for high-rise residences, some have begun to affect people's normal lives. The property right of residential land in our country is 70 years, and we don't know if the house can live in it for 70 years, and the mechanical equipment and supporting facilities of high-rise housing will definitely not last for 70 years. Even in one or two decades, there will be various problems, and in twenty or thirty years the problems may be even worse.

High-rise residential buildings are not as old as low-rise residential buildings, and there is no interest in the demolition of high-rise residential developers. Therefore, many people are worried about what to do when high-rise housing is aging, especially elevators, wiring and fire protection facilities. Many people worry that in twenty or thirty years, high-rise housing may become "slums".

Skyscrapers, also known as supertall buildings, are very tall multi-storey buildings. At first.

1 or 20 storey buildings, but now it usually refers to tall buildings with more than 40 or 50 storeys. As high-rise buildings evolve in different places, the definition of height of a skyscraper varies slightly. In Chinese mainland, building codes stipulate that buildings with a height of more than 100 meters are super high-rise buildings; Japan, France, and regulations are defined as super high-rise buildings if they exceed 60 meters; In the United States, buildings over 152 meters (500 feet) are generally considered skyscrapers.

When the 11th-century tower was built, it had only 4 floors, which was a rare tall building at the time. The walls of the tower were made of stone blocks, and each floor had to be able to carry the weight of the layers above it. In order for the tower to stand majestically, the lowest wall had to be as thick as a meter.

Buildings with load-bearing walls are up to 5 stories high. Because the lowest wall, no matter how thick, cannot support a higher structure. It is only possible to build a tall building if the frame is used to support the weight of the upper floor, and the lighter walls are used to protect against the wind, frost, rain and snow.

Medieval timber frame houses were the first steps in this direction. It was not until the 19th century, when steel production increased dramatically and was reliable, that a fundamental solution was found.

The first monolithic iron-framed load-bearing building was a four-storey boathouse built in 1860 in Heness, England. It is 16 meters high, has cast-iron columns and wrought-iron beams with a span of 9 meters, which are tightly fastened with bolts. But the place where skyscrapers were created was the United States.

The first skyscraper with a load-bearing frame was the 10-storey Insurance Company Building, built in Chicago in 1884-1885 by Gianni. The iron pillars connected by the lower 6 layers are wrought iron beam frames, and the upper 4 layers are steel frames. Since then, steel-framed skyscrapers have been built in the United States.

As long as the frame is installed, the entire curtain wall of the entire skyscraper can be built separately on each floor at the same time, so the construction progress is fast. The 55-story Gothic building in New York City, the Woolworth Building, completed in three years and standing at 230 meters, was the tallest building in the world when it was completed in 1913.

Completed a few months later than the Woolworth Building, the Empire State Building in New York City took only 15 months to complete, with 102 floors and a height of 375 meters, marking the rapid development of architectural technology in the 20th century. Chicago's Sears Tower, with 110 floors and a height of 473 meters, was completed in 1973. Now every 12,000 people work in it, and the total floor area of each floor is 100 times the area at the bottom.

Empire State Building.

The Empire State Building was built in 1929-1931 and is located in the heart of New York City. It is one of the famous representatives of skyscrapers and was once the tallest building in the world in the 30-70s of the 20th century. The Empire State is another name for the state of New York in the United States, hence the name of the building.

The Empire State Building is well-proportioned, and its silhouette once became a symbol of the skyscraper and an icon of New York City. The façade of the bottom 5 floors of the building is clad in limestone and granite, alternating with sheet metal window frames and inter-window walls from the 6th floor. The vertical upward pattern composed of shiny nickel-plated steel plates, under the glow of the morning sun and the sunset, is dazzling, opening up a new realm for the effect of architectural plastic art.

The building is a steel frame structure with a doorway connection system. The height of the Empire State Building from ground to the 102nd floor observation deck is 381 meters, and 448 meters after the addition of a television tower at the top in 1950. Only the 85 floors below are available for rent, and the standard floor height is about one metre.

The 17 floors above are actually elevator-based towers that were originally designed to be used as mooring airships. The building occupies an area of 130 meters long and 60 meters wide. New York City's 1916 statute required all tall buildings to retreat inward from the road at a certain height.

As a result, the 6th, 25th, 72nd, 81st and 86th floors of the building are indented and slightly stepped in shape. This is the tall and majestic Empire State Building.

1.The tallest building in the United States is the Willis Tower, also known as the Willis Tower, formerly known as the Sears Building, which is a skyscraper located in Chicago, Illinois, USA, with a height of 108 floors above ground and 3 floors underground. The building was completed in 1974, surpassing New York's World Center to become the tallest building in the world at the time.

It will be named "Sears Tower" until July 16, 2009. On July 16, 2009, it was officially renamed "Willis Building". The Willis Group building was designed by architect Bruce Graham and structural engineer Fazlur Khan.

2.The Chicago Spiral, which was supposed to be the tallest building in the United States when completed, is located in the heart of Chicago, USA, with a planned height of 610 meters. When completed, it will be the tallest building in North America. Originally expected to be completed in 2010, the work was halted due to the economic crisis.

3.1 World Trade Center, formerly known as the Freedom Tower, is a skyscraper of the New World Center in New York, USA, which is under construction, and will be located on the site of the former World Center that collapsed in the 911 attacks.

One World Center is designed to be 1,776 feet (m) high, symbolizing the year 1776 when the United States adopted the Declaration of Independence, while the roof is 417 m (1,368 ft) high to symbolize the roof of the former World Trade Center North Tower (417 m), while the observation deck and the highest usable floor are 415 m (1,362 ft) tall to symbolize the roof of the former World Trade Center South Tower (415 m).

At 1,450 feet (442 meters) tall and 108 floors, the Sears Tower in Chicago is taller than the former World Trade Center in New York and is the tallest building in the United States.

Because the U.S. economy developed relatively early,So old metropolises like New York and Los Angeles have already built skyscrapers, and now there is not enough space to continue to build new landmarksBut we are different, our Shanghai, Shenzhen because in recent decades has only begun to develop the economy, so skyscrapers are also rising from the ground, but such as the Empire State Building in New York, Hong Kong IFC These have become classic landmarks.

Everyone knows that the United States is currently the most powerful country in the world, both scientific and technological strength and economic strength are much stronger than other countries, and New York is also a world-class financial center in the United StatesNew York is also an unrivaled city in terms of economic aggregate and financial status compared to London, but many people may be surprised to find that New York is rarely starting to build new high-rise buildings these days, but China's Shanghai and Shenzhen, but buildings are rising from the ground, like New York did not continue to build high-rise buildingsIt's because they built so many skyscrapers hundreds of years agoAt that time, most cities had not yet been developed, and New York had already completed the skyline design.

The United States has passed that period and now does not want to build buildings on land. They want to develop agriculture so that technology and agriculture can be more advanced.

As urbanization stagnates and urban populations saturate, skyscrapers lose their momentum for growth. So it's rarely built.