Humanity has become obsessed with breaking its limits, creating new records only to break them again and again. In fact, our cities’ skylines have always been defined by those in power during every period in history. At one point churches left their mark. This followed by public institutions and in the last few decades. It’s commercial skyscrapers that continue to stretch taller and taller. Read this article full with Pritish Kumar and get enough knowledge.
The Council on Tall Buildings and Urban Habitat has developed its own system for classifying tall buildings. It stating that the Burj Khalifa (828 m.) is the world’s tallest building right now.
1. Burj Khalifa
The tallest building in the world
The Burj Khalifa is a mixed-use skyscraper located in Dubai, U.A.E. It is the world’s tallest building. It was officially named to honour the president of the neighbouring emirate of Abu Dhabi, Sheikh Khalīfah ibn Zāyid Āl Nahyān.The Chicago-based Council on Tall Buildings and Urban Habitat (CTBUH) has established 3 criteria to determine what makes a tall building tall. Burj Khalifa wins by far in all three categories.
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Height to architectural top
Height is measured from the level of the lowest, significant, open-air, pedestrian entrance to the architectural top of the building. This includes spires but does not include antennae, signage, flagpoles or other functional-technical equipment. This measurement is the most widely used and is used to define the Council on Tall Buildings and Urban Habitat rankings of the Tallest Buildings in the World.
- Highest occupied floor
It is measured from the level of the lowest pedestrian entrance to the highest continually occupied floor . Maintenance areas are not included. - Height to tip
Height is measured from the lowest pedestrian entrance to the highest point of the building. It irrespective of material or function of the highest element. This includes antennae, flagpoles, signage and other functional-technical equipment.
Burj Khalifa (“Khalifa Tower”), known during construction as Burj Dubai. This was officially named to honour the leader of the neighbouring emirate of Abu Dhabi, Sheikh Khalifa ibn Zayed Al Nahyan. Although the tower was formally opened on January 4, 2010, the entirety of the interior was not complete at that time. Built to house a variety of commercial, residential, and hospitality ventures, the tower—whose intended height remained a closely guarded secret throughout its construction—reached completion at 162 floors and a height of 2,717 feet (828 metres). It was designed by the Chicago-based architectural firm of Skidmore, Owings & Merrill. Adrian Smith served as architect, and William F. Baker served as structural engineer.
2. Shanghai Tower
The tallest twisted building in the world
On schedule to be China’s tallest and the world’s second tallest skyscraper, the Gensler -designed Shanghai Tower has topped out at 632 meters (2,074 feet). It complited in 2014. the spiraling megastructure is combination of trio towers – Jin Mao Tower and Shanghai World Financial Center . It become the centerpiece of the city’s Lujiazui commercial district . Also one of Asia’s leading financial centers which developed from farmland in just over 20 years.
Defined by series of distinctive sky gardens, the state-of-the-art tower will house Class-A office and retail space, along with a luxury hotel and cultural venues. As the skyline’s most prominent icon, the tower’s transparent, spiral form showcases cutting-edge sustainable strategies and public spaces that set new standards for green community. Within 127 stories, Shanghai Tower houses Class A office space, entertainment venues, retail, a conference center, a luxury hotel, and cultural amenity spaces. The tower has been awarded a China Green Building Three Star rating and a LEED® Platinum Certification from the U.S. Green Building Council.
3. Makkah Royal Clock Tower
The tallest building with a clock face in the world
Makkah Royal Clock Tower is the tallest structure among the seven skyscrapers of the Abraj Al-Bait. A complex owned by the Government of Mecca in Saudi Arabia. Makkah Royal Clock Tower is the third tallest building with the largest clock face in the world at the apex of the towering skyscraper.
The complex itself is a hotel and residential structure, just a couple of hundred metres from the Holy Mosque of Mecca. The 6-tonne crescent moon at the top of the towering building is stark against the sky. That can be seen from the piazza below.
The Makkah Royal Clock Tower stands 1,972 feet (601 metres) tall with 120 floors in the superstructure and 3 floors below ground. The skyscraper was designed by the firm RL Rasch GmbH headed by Mahmoud Bodo Rasch. The construction began in 2004 and was completed in 2012 by the construction firm Saudi Binladin Group. The tower contains numerous hotel rooms, a five-storey high shopping mall, Islamic Museum and prayer rooms, topped off by a golden crescent. The symmetrical complex towers above the piazza and the Kaaba, with the clock depicting the time for prayers across the land.
The crescent at the apex of the Makkah Royal Clock Tower is 75 feet (23 metres) high. The colossal piece is 21 metres in diameter and is a monocoque structure. The loads of the piece are supported by the structural skin. The crescent encompasses a four-storey high column-free living space with a prayer room, resting area, kitchen and bathroom, and a few service floors.
Reference
https://www.archdaily.com/779178/these-are-the-worlds-25-tallest-buildings
