More and more skyscrapers are being built in urban areas
because to rising land prices and increased population expansion. These
maximise available space for expanding residential and commercial areas. Humans
continue to push the boundaries of urban thought in an effort to help the
environment and the economy.
What Is a Skyscraper?
Any tall structure used for human living is referred to as a
skyscraper. In most circumstances, a building is considered to as a skyscraper
if it towers over the nearby buildings and noticeably changes a city's skyline.
The phrase was previously solely applied to buildings with
ten stories or higher. A skyscraper in the United States today should be at
least 150 metres tall. A building that is at least 80 metres (262 ft) tall may
still be referred to as a skyscraper in some regions of the world.
A Brief History of Skyscrapers
In the past, a skyscraper was a large mast or sail on a ship
that was sailing. Until the late nineteenth century, when the public was in awe
of the buildings being constructed in Chicago and New York City at the time,
the phrase was not used to describe a building.
The term "skyscraper" was later given a structural
definition by architectural historians, who based their work on the
technological developments of the 1880s that had made it possible to build
towering buildings with multiple stories. The tallest structures in existence
are now referred to as skyscrapers.
Construction of Skyscrapers
The following are the raw materials used in the construction
of skyscrapers:
Reinforced Concrete
The ingredients for reinforced concrete, a type of concrete,
are water, cement powder, and aggregates, which might be sand or gravel. Rebar,
a gridwork of steel rods intended to reinforce concrete after it has cured and
shield it from wind-induced bending, is poured around the concrete as it is being
poured.
The enormous weight that had to be placed on the framework
in a skyscraper necessitated a new sort of concrete that was more than twice as
strong as the ordinary kind, despite the fact that concrete has a natural
resistance to compression.
The incredibly small particles utilised in this
high-strength material helped to build a more solid bond than conventional
concrete because of their greater surface area.
Steel
The other main raw material utilised in the construction of
skyscrapers is steel, an alloy of iron and carbon. Just before they need to be
installed, steel beams with particular dimensions and forms are delivered to
the job site.
This is due to the fact that spaces made accessible for
building work and supply storage are typically constrained by surrounding
constructions. Before the beams are hauled out, a mixture of plaster and
vermiculite, which is mica that has been heated and expanded into particles
resembling sponges, is painted over them to protect them from heat and
corrosion.
The newly formed joints are sprayed with the same substance
that makes up the new joints after each beam has been welded into its new
place. There may be an additional layer of insulation. An illustration of this
would be aluminium foil covering fibreglass batting.
To take use of both materials' advantageous qualities,
concrete and steel are routinely used in the construction of skyscrapers. On
occasion, a support column can be created by pouring concrete around a steel
beam.
Other Materials
The exterior walls of a building are built using sheets
(referred to as "cladding") made of glass, metals (such as aluminium
or stainless steel), or masonry materials (such as granite, marble, or
limestone).
Design of Skyscrapers
Design engineers are in charge of turning the architect's
conceptualization of the structure into a workable scheme without jeopardising
its structural integrity. A skyscraper's integrity is more at risk from lateral
wind pressure than it is from the structure's total weight plus its individual
parts.
Each skyscraper has a distinct design. An array of support
columns around the perimeter of the building that are connected to one another
by horizontal beams and tethered to the roof, a reinforced concrete skeleton
that is filled with cladding panels to form the exterior walls, a central
concrete core (open column) large enough to contain lift shafts and other
mechanical components.


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