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The tradition also served a functional purpose: a pine tree was used, and after the needles had fallen off the tree, the builders knew the wood frame below had cured/dried out so they could enclose the building. [4] Long an important component of timber frame building, [5] it migrated initially to England and Northern Europe, thence to the ...
The central "web" of the steel I-beam is often wider than a column web to resist the higher bending moments that occur in beams. Wide sheets of steel deck can be used to cover the top of the steel frame as a "form" or corrugated mold, below a thick layer of concrete and steel reinforcing bars. Another popular alternative is a floor of precast ...
Frame of the Crystal Palace. Beams and girders were made of wrought iron with I-beam cross-section. The material was rarely used for the columns, as the cast was both stronger under compression and cheaper, so a typical iron frame building in the second half of the 19th century had cast iron columns and wrought iron beams.
A bent in American English is a transverse rigid frame (or similar structures such as three-hinged arches).Historically, bents were a common way of making a timber frame; they are still often used for such, and are also seen in small steel-frame buildings, where the term portal frame is more commonly used.
A steel Ɪ-beam, in this case used to support timber joists in a house Ɪ-beam (serif capital 'Ɪ'-shaped cross-section – in Britain these include Universal Beams (UB) and Universal Columns (UC); in Europe it includes the IPE, HE, HL, HD and other sections; in the US it includes Wide Flange (WF or W-Shape) and H sections)
The 15th century wooden framed building was moved on rails around 100 yards (91 m) up a 1:10 hill, and became known as The House That Moved. [15] The Cudecom Building in Bogotá, Colombia (Weight 7,000 Metric Tons, Distance Moved: 95 Feet); was moved in October 1974 using Steel Rollers. The 8 story building was moved westward to build an avenue.
The dimension of a wide-flange I-beam. In the United States, steel I-beams are commonly specified using the depth and weight of the beam. For example, a "W10x22" beam is approximately 10 in (254 mm) in depth with a nominal height of the I-beam from the outer face of one flange to the outer face of the other flange, and weighs 22 lb/ft (33 kg/m).
An elaborate cast iron frame was used for the dome of Saint Isaac's Cathedral in St Petersburg (1837–38), and the new roof following a fire of Chartes Cathedral (also 1837–8, and the widest span of a metal roof at the time). Similarly large span beams were also to support the wide roofs of the Palace of Westminster (1840s–50s).