The building also has a cladding system that is meant to endure the scorching summer temperatures in Dubai. It has 57 elevators and 8 escalators in total. The original Emaar developers fell into financial troubles and needed extra money and economic backing at some time throughout the architecture and engineering process. They managed to find both in the form of debt financing from local banks and investors, as well as revenue from tourism.
The building's design includes features to reduce energy consumption such as light-colored exteriors, large windows, and solar panels. It is expected to have reduced energy consumption by 30% compared with other skyscrapers of its time.
It was built as a monument to wealth and prosperity for the city of Dubai, with every aspect designed by a different designer or team of designers. The building is so big that it can house more than 40,000 people. It has been praised for its innovative design and has become one of the most important landmarks in Dubai.
Despite dropping property prices and rental rates at the world's highest tower, Emaar Properties claimed this week that the Burj Khalifa is 80 percent occupied. The world's tallest building, which was completed in 2009, has 828 rooms spread over 23 floors.
The number of people living in the Burj Khalifa would significantly exceed the population of Dubai, which according to the most recent census is less than 4 million. In addition, more than half of the rooms are set aside for employees of affiliated companies who work at the tower.
In addition to being the world's tallest building, the Burj Khalifa is also the fastest building in terms of construction time, with a completion date of four months early. The previous record holder was the Petronas Towers in Malaysia, which took ten years to build.
The Burj Khalifa cost $1 billion to construct and its total value is estimated at $20 billion. It is owned by Emirati businessman Sheikh Mohammed bin Rashid Al Maktoum.
Sheikh Mohammed has said he will donate all his profits from the tower to charity and last year announced that all the money going into the building would be used to establish education programs for girls in poor countries.
The Eiffel Tower
|The Eiffel Tower|
|Design and construction|
Despite the fact that various safety precautions were taken during the construction of the Burj Khalifa, it appears that there was just one documented construction death. According to a spokeswoman for the developer, Emaar, a man died after falling in 2007. The company says that it takes safety very seriously and has established a number of procedures to ensure the safety of workers.
The Burj Khalifa is said to be the most expensive building in the world. It has been estimated that it will cost about $150 million to build a life-saving system in its elevators. However, this figure does not include the loss of life. It is estimated that about 70 people have died while working on the project so far.
The official opening of the Burj Khalifa was marked by President Barack Obama and other leaders from around the world. In his speech at the event, President Obama called the skyscraper an "inspiration" and "a testament to the power of belief and the promise of America."
The Burj Khalifa stands at 2,723 feet or 828 meters high and it is located in Dubai, United Arab Emirates. It is the tallest building in the world. Before its construction, the Sears Tower in Chicago was thought to be the highest building in the US.
The global crisis may have put a halt to many planned tall buildings throughout the world, but Adrian Smith, the Burj Khalifa's Chicago-based designer, believes these epic constructions have a future, even in Dubai. "There's no question that the economic downturn has had an impact on the development community," he says. "But I don't think we're out of the game yet."
The blueprint for the Burj Khalifa was completed by Skidmore, Owings & Merrill in 1997 and was originally intended as a hotel. It was later sold to the Emirate of Abu Dhabi, who decided to turn it into a skyscraper instead. The project was launched in 2004 and was completed eight years later.
The Burj Khalifa has 828 rooms, including 56 luxury suites, and rises up to meet the top of its cylindrical atrium tower. It also features a number of other unique design elements, such as a rainforest garden, which provides natural cooling through evapotranspiration, or the process by which plants absorb water from the air rather than from the ground.
It is believed that Norman Foster was approached to design another skyscraper in Dubai, but he declined due to time constraints.
It was constructed with four stairs, one for each pillar, extending from the ground level to the second floor, with a fifth leading from the second to the top. With service demands, this is the typical usage of stairs nowadays. The tower was originally built with seven steps, but two were removed when King John signed the Magna Carta in 1215. This act protected citizens' rights, including the right to bail and the right to confront one's accusers.
The tower has been rebuilt several times after it was damaged or destroyed by fire. The present tower was built between 1173 and 1220 under the direction of Sir Hugh de Cressingham. It replaces an earlier tower that was also damaged by fire. The new tower is about 15 feet shorter than the old one, but it uses half as much material. Its basement is made of stone while the rest of the structure is made of wood. The new tower has five floors instead of the original seven. Work on the new tower was finished in 1220, just three years after it was begun.
The tower continues to serve as a prison today. It holds both men and women, but only people who can afford to pay for their room and board are allowed inside the walls.
There are approximately 150 steps inside the tower wall.
There are 57 elevators. The largest elevator has a capacity of 14 people per lift, which allows up to 500 people to be lifted at one time.
The building is so tall that there is no first floor, just like any other skyscraper over 100 m (328 ft). The lowest floor is about 740 m (2440 ft) above sea level.
The elevator drivers are also called "elevator technicians" or "express elevator operators". They work for an engineering company who design and install the elevators as well as maintain them. The drivers are usually union workers who operate different types of elevators including high-speed capsules.
The Burj Khalifa is the tallest building in the world. It contains 57 elevators, each capable of carrying 14 people at a time.
Construction on the Burj Khalifa began in 2004 by Dubai Properties LLC, the real estate development company behind the project.
(This includes the illumination in elevator cabs.) To manage the traffic in the six-story structure, just one extra elevator is required, but three more pairs of escalators are required so that people may access and depart each floor. In this instance, the elevator bank might consume 130,000 kWh per year, while the escalators consume 187,000 kWh. This means that the total electricity usage of these two elements comes to up to 217,000 kWh per year.
An average-sized elevator uses about 17 kilowatts (kW) of power, while a large one uses about 40 kW. So, the small elevator would use about 170 watts, while the large one would use about 340 watts. An escalator uses around 1 kW of power on average. So, the three large ones would use 3 kW each, while the single small one would use 5 kW.
Thus, the annual electricity consumption of the elevator bank is about 218,000 kWh, while that of the escalators is about 374,000 kWh. The difference is 166,000 kWh or 67% of the elevator's energy consumption is used for moving people upstairs/downstairs. The remaining 33% is used for lifting people upwards/dropping them downwards.
The escalator consumes more energy than the elevator because it works all the time, while the elevator needs to work only when passengers want to go from one level to another. Escalators are also heavier than elevators; thus, they need more power to move them across floors.