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A portal frame steel building under construction. Portal frame is a construction technique where vertical supports are connected to horizontal beams or trusses via fixed joints with designed-in moment-resisting capacity. [1] The result is wide spans and open floors. Portal frame structures can be constructed using a variety of materials and ...
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.
It is a reinforced concrete, portal frame, cable-stayed bridge with a total length of 413 m. It was built by the Kajima Corporation of Japan in 2002, to replace the former bridge built by Socio Construction Co. of South Korea in 1978 which collapsed in 1996.
Single span rigid-frame bridges are typically made of reinforced concrete and are commonly used on parkways and other roadways. [4] This design is an efficient use of material as the cross section at mid-span is relatively narrow and the amount of concrete needed at the abutments is reduced. [4]
A concrete frame, also known as a concrete skeleton, is a structure composed of interconnected beams, columns, and slabs that is used to support larger structures. [ 1 ] [ 2 ] Due to the low cost of producing them, concrete frames are often used when building damns, bridges, and buildings.
The concrete portal frame structure was preserved. The lobby of this building was open to the public on London Open House day, over the weekend of 19 and 20 September 2009. Members of the public were allowed to view the lobby, which is normally only accessible to employees of the building and invited guests. [3]
Tangent Creek: 87-metre (284 ft) timber frame trestle. Replaced by fill and 4-metre (12 ft) timber frame trestle and concrete culvert in 1956. After the Nov 1959 washout, this fill was never repaired. [73] 38.5: Unnamed creek: 16-metre (54 ft) timber frame trestle. Replaced by 6-metre (21 ft) steel half deck plate girder span in 1950. [73] 38.6 ...
The Bison wall-frame construction system was a construction method used in tower block construction. It was launched in 1963 by Concrete Ltd who set up factories across the UK to pre-fabricate the parts it. It was not a frame structure as such, instead precast concrete panels formed the structure of high rise blocks.