The CN Tower includes 40,538 cubic metres (53,000 cubic yards) of concrete, and preserving its integrity was critical for a project of this size. The weight of the tower alone is about 7,500 tons, and it stands 541 meters (1,849 feet) tall.
The tower was designed by architect Eishwan Bess with input from Jung Cho Kang, who contributed to its conception as well as many other major structures in Toronto. It was also inspired by the Petronia Towers in Houston and the IBM Centre in New York City. Construction on the CN Tower began in 1976 and it was opened to the public on July 4, 1976. Originally called the Canadian National Exhibition Center, it has been renamed several times over the years: CTV Television Network House, Telus World View, and most recently the CN Tower.
There are actually three main components to the CN Tower: the core, the antennas, and the viewing platform. The core of the tower is an enormous cylinder that reaches up to the top of the building at 98 stories, or just under half way through the height of the structure. This is where the majority of the weight of the tower is contained, and it provides stability for the rest of the building.
There are 1,537 employees. The CN Tower was a massive and ambitious undertaking that required 1,537 employees to labor 24 hours a day, five days a week for 40 months until it was completed. On February 6, 1973, tower building personnel arrived and began excavating about 56 metric tons of soil and shale for the foundation. This work continued throughout most of 1973 with minimal breaks for winter or summer holidays.
The main structure of the CN Tower is made up of 38,000 square meters of pre-stressed concrete that weighs approximately 7 million kg (15 million lb). The tower's height is 438 meters (1452 feet) and it has 36 floors. Its diameter at its base is 30 meters (98 feet), and it tapers to 20 meters (66 feet) near the top.
When it was first built, the CN Tower was the world's tallest free-standing structure. It now ranks as the second-tallest freestanding structure after the Burj Khalifa in Dubai. The CN Tower has been called "the eighth wonder of the world" because of its elegant design and its presence on both land and water.
It is located in Toronto, Ontario, Canada, and stands 553 meters (1,807 feet) tall from its lowest floor to its highest balcony. The CN Tower was opened to the public on May 10, 1976. Before this date, it was used by Canadian National Railways for train spotting and testing new technologies.
The CN Tower is estimated to weigh 134,193 tonnes. This makes it the heaviest single structure in Canada.
The tower's weight has been a topic of controversy since its construction. At the time, it was believed to be the world's tallest free-standing metal structure. However, two other structures have since been built with more height. The Guinness Book of World Records now lists both the CN Tower and Shanghai's Pudong International Airport as being the world's highest artificial structures.
The tower's weight has had an impact on the surrounding soil. An investigation conducted by the Toronto Star found that some areas around the base of the tower are moving due to ground pressure issues caused by its weight.
Overall, the CN Tower is one of Canada's most recognizable landmarks. It has been called "the Eiffel Tower of North America" because of its resemblance to the French engineering masterpiece. The tower's weight, however, has made building foundations beneath it necessary.
The CN Tower is the ninth highest free-standing structure in the world. The CN Tower (French: Tour CN) is a 553.3 m (1,815.3 ft) concrete communications and observation tower located in Toronto, Ontario, Canada's downtown center. It was finished in 1976 on the old Railway Lands. The tower has become a popular tourist attraction and major landmark for the city.
The tower is owned by the CN Corporation, a Canadian railroad company. It is located at the corner of Bay and Wellington Streets in the Financial District of Toronto near the shores of Lake Ontario. The base of the tower is surrounded by parkland that includes trees, walking paths, and playground equipment. The observation deck is open to the public, but tickets must be reserved in advance or bought online.
There are two main types of structures used for skyscrapers - cylinders and cubes. The CN Tower is an example of a cylinder because it consists of a hollow shell with the bottom part closed off. There are no walls inside the body of the building except for the roof which forms the floor of the upper level. Cylinders are most efficient structurally and also provide maximum space within limited boundaries. They are more expensive to build than cubes since there is less room inside the box frame required to support the weight of the building.
Cuboid buildings have four square sides and a flat top.
Multiply your area's width, length, and depth. Concrete is often purchased in cubic metres. Here is a conversion chart. One cubic metre contains 1.3 cubic yards (if you have your requirement in cubic yards, all you need to do is divide by 1.3 to get the cubic metre answer). A cubic yard is 32 feet long, wide, and high.
So, for example, if your area is 100 square feet and you need 250 cubic inches of concrete, you will need 25 cubic meters of concrete.
This is probably more than you need. The amount required depends on the strength of concrete you use. Generally, less is better when it comes to concrete strength. For an ordinary home project, you should be able to use concrete with a minimum strength of 30 MPa (4,000 psi). If you want to be sure, test a sample before you pour it. If it cracks when you push it with your finger, then you need stronger concrete later on.
Concrete strength varies depending on how old it is, how much water it has been exposed to, and other factors. For example, concrete that has just been poured and hasn't had time to cure yet will be quite weak. As it cures, the water evaporates and the cement paste hardens, increasing the concrete's strength.
One cubic yard of concrete has a thickness of 4 inches and covers an area of 81 square feet. It has a thickness of 5 inches and a surface area of 65 square feet. 6-inch thick, 54-square-foot coverage for every square yard.
Concrete is a mixture of water and cement that has been mixed together and poured into forms to make shapes like slabs, tiles, or pipes. The concrete begins to harden as it sets into a brittle solid.
As you can see, one square yard is about 1/4 acre. A building's parking lot may be made out of concrete. The cost of concrete drives depends on how it is made. Concrete made with sand and gravel is cheaper than that made with stone, because there are more quantities of it. Concrete made with recycled materials is becoming more common too!
Concrete is used in many ways around the house. The slab in your driveway is made of this material. So are the walkways and driveways at most houses. The basement floor of most homes is made of concrete. So is the part of the patio that is above ground. Concrete is used in foundations too! It provides good support for buildings.
Concrete is easy to work with and durable. It can be colored or stained to change its look.