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What is Steel Building

steel building is a metal structure fabricated with steel for the internal support and for exterior cladding, as opposed to steel framed buildings which generally use other materials for floors, walls, and external envelope. Steel buildings are used for a variety of purposes including storage, work spaces and living accommodation. They are classified into specific types depending on how they are used.

History

The Minor Basilica of San Sebastian(1891) in Manila
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Steel buildings first gained popularity in the early 20th century. Their use became more widespread during World War II and significantly expanded after the war when steel became more available. Steel buildings have been widely accepted, in part due to cost efficiency. The range of application has expanded with improved materials, products and design capabilities with the availability of computer aided design software.

Advantages
Steel provides several advantages over other building materials, such as wood:
Steel is structurally sound and manufactured to strict specifications and tolerances.
Any excess material is 100% recyclable.
Steel does not easily warp, buckle, twist or bend, and is therefore easy to modify and offers design flexibility. Steel is also easy to install.
Steel is cost effective and rarely fluctuates in price.
Steel allows for improved quality of construction and less maintenance, while offering improved safety and resistance.
With the propagation of mold and mildew in residential buildings, using steel minimizes these infestations. Mold needs moist, porous material to grow. Steel studs do not have those problems.
Heat conductivity: Calculations show that the web of an 18-gauge steel stud is about 31 times thinner than a “two-by” wood stud; however, steel conducts heat 310 times more efficiently than wood. As a net result, a “two-by” steel stud will conduct 10 times more heat than a “two-by” wood stud.
Corrosion: Faulty design leads to the corrosion of iron and steel in buildings.
Can bend in fires.

Disadvantages
Heat conductivity: Calculations show that the web of an 18-gauge steel stud is about 31 times thinner than a “two-by” wood stud; however, steel conducts heat 310 times more efficiently than wood. As a net result, a “two-by” steel stud will conduct 10 times more heat than a “two-by” wood stud.
Corrosion: Faulty design leads to the corrosion of iron and steel in buildings.
Can bend in fires.

Types
Some common types of steel buildings are “straight-walled” and “arch,” or Nissen or Quonset hut. Further, the structural type may be classed as clear span or multiple span. A clear span building does not have structural supports (e.g. columns) in the interior occupied space.
Straight-walled and arch type refer to the outside shape of the building. More generally, these are both structural arch forms if they rely on a rigid frame structure. However, curved roof structures are typically associated with the arch term.
Steel arch buildings may be cost efficient for specific applications. They are commonly used in the agricultural industry. Straight-walled buildings provide more usable space when compared to arch buildings. They are also easier to blend into existing architecture. Straight-walled buildings are commonly used for commercial, industrial, and many other occupancy types.
Clear span refers to the internal construction. Clear span steel buildings utilize large overhead support beams, thus reducing the need for internal supporting columns. Clear span steel buildings tend to be less cost efficient than structures with interior columns. However, other practical considerations may influence the selection of framing style such as an occupancy where interior structural obstructions are undesirable (e.g. aircraft hangars or sport arenas).
Long Bay buildings are designed for use in bay spans of over 35′. They use prefabricated metal frames combined with conventional joists to provide larger openings and clearances in buildings.


Post time: Nov-04-2019

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