Q3A is an abbreviation for a type of three, four and five storey prefabricated buildings constructed in the GDR in the 1950s and 1960s. The letter "Q" in the word stands for "Querwandbau" (cross wall construction).
In a Q3A panel house, the walls are constructed entirely from concrete blocks, while the ceiling consists of multiple concrete plates that were placed perpendicular to, and on top of the wall elements. This explains the source of the "cross wall construction" name. The flat roof construction is the most visible difference between the Q3A series and other East Germany buildings of its time. Q3A homes are equipped with a furnace for heating, and a balcony for use by tenants was also provided in approximately half the cases. In later years (after the fall of the Berlin Wall and German Reunification), most houses were retrofitted with additional balconies.
The concrete blocks and ceiling elements of the first houses were manufactured at an industrial plant in the Ostseestrasse in Berlin. Other types of panel construction used for Q3A houses were the IW57- and IW58-types. These were produced in much smaller numbers, with some even lacking the signature flat roof, being built with a more classic Hip Roof.
Shortly after the first houses were erected in 1957 in the eight quarters of East Berlin, further series utilizing cross wall construction were developed. The QX-series, which were mostly 4-storey buildings, were not constructed from blocks, but from cheaper concrete strips. Most buildings of this series can be found in the "Hans-Loch" quarter, which was the first, newly constructed, large-scale settlement in East Berlin after the end of the Second World War. While Q3A block buildings were used in most areas of the GDR, the QX-series was constructed on a relatively limited basis. It is therefore regarded as an experimental series.
Further developments of cross-wall panel buildings happened from 1959 to 1983. These, even more frequently built homes, had the building type designation QP or QP64, for those mainly built in 1964. They were built with five, eight or ten storeys and in contrast to the two previous Q-series buildings, fulfilled the existing building codes by being furnished with a lift. The QP-series was the first type of house utilizing larger, industrial-sized panels. Each individual plate forms a complete wall of a room. The most striking and visible feature of many houses in the QP series is the colouring of the exterior walls, usually consisting of white or yellow tiles. The first buildings of this series originated in Berlin, between Strausberg and the Alexanderplatz, in the western half of the former Stalin Avenue as well as the Hans-Loch Quarter.
The early 1970s were marked by the arrival of by far the most common series -- the WBS70 (Wohnungsbauserie 70). Approximately 900,000 apartment units of this type were constructed -- consisting of five-, six- and eleven-storey buildings. Other large-panel series were the P2 and WHH GT 18 series. These were constructed as part of the "Sonderbauprogramm Berlin" (special construction program Berlin), which allocated special funds to improving the housing of what was then, the capital of the GDR -- East Berlin.
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The large panel system building is a building constructed of large, prefabricated concrete slabs. Such buildings are often found in housing development areas. Although large panel system-buildings are often considered to be typical of Eastern Bloc countries in the second half of the 20th century, this prefabricated construction method was also used extensively in Western Europe and elsewhere, particularly in public housing.
Prefabrication is the practice of assembling components of a structure in a factory or other manufacturing site, and transporting complete assemblies or sub-assemblies to the construction site where the structure is to be located. Some researchers refer it to “various materials joined together to form a component of the final installation procedure“.
Ronan Point was a 22-storey tower block in Canning Town in Newham, East London, that partially collapsed on 16 May 1968, only two months after it opened. A gas explosion blew out some load-bearing walls, causing the collapse of one entire corner of the building; four people died and 17 were injured. The nature of the failure led to a loss of public confidence in high-rise residential buildings, and major changes in British building regulations resulted.
A prefabricated building, informally a prefab, is a building that is manufactured and constructed using prefabrication. It consists of factory-made components or units that are transported and assembled on-site to form the complete building. Various materials were combined to create a part of the installation process.
Khrushchevkas are a type of low-cost, concrete-paneled or brick three- to five-storied apartment buildings which were designed and constructed in the Soviet Union since the early 1960s. Khrushchevkas are sometimes compared to the Japanese danchi, similar housing projects from the same period, which by some accounts were directly inspired by them.
Cast-iron architecture is the use of cast iron in buildings and objects, ranging from bridges and markets to warehouses, balconies and fences. Refinements developed during the Industrial Revolution in the late 18th century made cast iron relatively cheap and suitable for a range of uses, and by the mid-19th century it was common as a structural material, and particularly for elaborately patterned architectural elements such as fences and balconies, until it fell out of fashion after 1900 as a decorative material, and was replaced by modern steel and concrete for structural purposes.
The Winslow Ames House is a prefabricated modular International Style house in New London, Connecticut, United States. It was designed by Robert W. McLaughlin Jr. and was built in 1933. Winslow Ames, a professor of art history at Connecticut College and the art director of the Lyman Allyn Museum, had the home built after attending the Century of Progress Exposition in Chicago. Constructed for $7,500, the prefabricated house is one of two surviving Motohomes produced by McLaughlin's company American Houses Inc. The modular house, comprising three rectangles and a flat roof, was constructed on a concrete slab with a welded steel framework. It was made with asbestos panels and features a core component that provides the heating and plumbing functions for the house. The other two modules feature two bedrooms and a one-car garage.
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Stadthaus is a nine-storey residential building in Hackney, London, completed in 2009. With nine stories, it was considered the second tallest timber residential building made of wood in the world at the time of its construction, after the Forte apartment complex in Melbourne, Australia. It was designed in collaboration between architects Waugh Thistleton, structural engineers Techniker, and timber panel manufacturer KLH.
WBS 70 is a type of dwelling that was built in the German Democratic Republic using slab construction. It was developed in the early 1970s by the German Academy of Architecture and the Technical University of Dresden. In 1973, the first block in the city was built in Neubrandenburg and this house is now a historical monument. Of the approximately 1.52 million dwellings constructed in slab construction to 1990, the Type 70 WBS is widespread, accounting for up to 42 percent of housing constructed in the East.
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Wilfried Stallknecht was a German architect, planner and furniture designer. He was known chiefly for his significant role in shaping Germany's post-World War II built environment – particularly that of the former East Germany (GDR) – through his major contributions to the designs of the country's ubiquitous, iconic and often standardized housing blocks – the so-called Plattenbau – as well as a similarly ubiquitous and standardized single-family house design known as the EW58. He was affiliated with the GDR's Bauakademie from 1959 to 1973 and served as planner for the town of Bernau bei Berlin from 1974 to 1984.
Radoma Court was designed in 1937 by the Harold Le Roith practice of architects. It is situated prominently on a corner site in Bellevue, at stand 474 where Cavendish and Yeo Streets meet.
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Julius Street Flats is a heritage-listed group of seven apartment blocks at 15 Julius Street, New Farm, City of Brisbane, Queensland, Australia. They were built from 1934 to early 1950s. The apartment blocks are called Ardrossan, Green Gables, Julius Lodge, Syncarpia, Ainslie, Pine Lodge and Evelyn Court. They were added to the Queensland Heritage Register on 4 August 1997.
The Bison industrialised building system is a precast concrete building system used in high rise flats, developed by Bison Manufacturing Ltd, Dartford, Kent, England.
The Hunslet Grange Flats was a complex of deck-accessed flats in Hunslet, Leeds.
Spinifex State College Junior Campus is a heritage-listed state high school at 6–12 Fifth Avenue, Parkside, Mount Isa, City of Mount Isa, Queensland, Australia. It was designed by Department of Public Works (Queensland) and built in 1954. It is also known as Mount Isa State High School and Mount Isa Intermediate School. It was added to the Queensland Heritage Register on 23 August 2018.