Steel
Buildings
The
term "steel building" is
often associated with simple storage sheds and basic
structures. With advancements in the industry over
the past fifty years, however, steel buildings have
broken that stereotype and are being used for an
ever-growing list of larger and more complex applications.
Steel has found its way into advanced farm buildings,
riding arenas, aircraft hangers, commercial centers
and more.Steel building system satisfies the classical
definition of a system as an interdependent group
of items forming a unified whole. In a modern metal
building, the components such as walls, roof, main
and secondary framing, and bracing are designed
to work together.
Modular
buildings consist of three-dimensional plant-produced
segments that are shipped to a site for erection
and final assembly by a field contractor. Modular
steel systems, consisting of threedimensional column
and joist modules bolted together in the field,
were marketed in the 1960s and1970s, with limited
success. Modern metal building systems, however,
cannot be called modular.
Panelized
systems include two-dimensional building components
such as wall, floor, and roof sections, produced
at the factory and field-assembled. In addition
to the "traditional" precast concrete,modern
exterior wall panels can be made of such materials
as metals, brick, stone, and composite assemblies.While
the exterior "skins" of metal buildings
generally employ panels, the term panelized does
not capture the essence of metal building systems
and should not be used to describe them.
Prefabricated buildings are made and substantially
assembled at the factory. While the metal building
industry has its roots in prefabricated buildings,
this type today includes mostly small structures
transported to the site in one piece, such as toll
booths, kiosks, and household sheds. Modern metal
buildings are not prefabricated in that sense.
Most
any contemplated shape can be realized with 21st
century engineered steel structures. Buildings that
are pre-engineered now are used for business offices,
manufacturing plants, auto repair shops, sports
facilities, hangars, small motor car garages and
many more uses. Pre-engineered steel systems can
be designed and rigged into numerous sizes and configurations
and are chosen as the construction material of choice
in regards to residential, non-residential, and
industrial use.
The 20th century marked the beginning of the steel
building industry. With the widespread use of automobiles
in the early 1900s, one of the first uses of steel
building was the garage. As consumers saw the low
cost and value of steel, storage facilities, garages
and storage sheds made of galvanized steel quickly
spread around the country. In the first decade of
the 1900s innovative builders also created farm
storage buildings and grain bins out of steel instead
of wood. By the end of the Depression, these storage
bins had proven their durability when compared to
wood structures. This was validated in 1938, when
the U.S. Department of Agriculture ordered 30,666
steel grain bins to store surplus crops. This order
amounted to 1 ½ times the number of steel
grain bins created by the entire industry only one
year before.
In 1940 Butler Manufacturing Company introduced
the first line of prefabricated steel buildings
using rigid frame design. (A rigid frame is a skeleton
for the building's framework, made of steel girders.)
This allowed businesses to purchase larger and more
capable steel buildings at a lower cost and with
a shorter construction schedule. By this time, the
aeronautical world had embraced steel as well; steel
aircraft hangers were being widely used in the civilian
and military sectors.
Following World War II, engineers continued to improve
prefabricated steel buildings, increasing the size
and sophistication of these building "kits."
The Metal Building Manufacturers Association (MBMA)
was founded in 1956 to drive innovation, standardization,
and greater acceptance of prefabricated steel buildings.
Their efforts have worked; the MBMA estimates that
steel building systems were used for about $1 million
of new construction in 1960. In 2000, steel building
systems accounted for almost 1.16 billion square
feet and $2.5 billion of new low-rise commercial
construction.
Into the twenty-first century premium quality steel
will continue to grow in approval. The price of
steel have increased due to several reasons the
appearance of the 21st century. As it is still less
costly as compared to different options so despite
these price increases a good number of building
shoppers, businesses, as well as associations are
still choosing commercial quality steel as their
building preference.
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