Large cast - in - place construction
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The use of large tool-type template to industrial methods in the field of concrete bearing wall of the housing filling, for more interior walls of residential, hotels and so on. Early 20th century, Western Europe has built some low-level with large-scale cast-in-place concrete wall panels of houses, but by the technical conditions at the time, did not promote. After the Second World War, housing shortage serious, and promote the construction industry and the construction of industrial development. As a result of the improvement of formwork technology and construction machinery, a number of countries in Western Europe and Northern Europe began to use the large-scale cast-in-situ process to construct high-rise concrete wall houses from the 1950s. The Soviet Union and Eastern Europe and other countries from the 60's development of such housing, the United States, Japan and other countries also have development. In the mid-1970s, China built a number of 4 to 16 layers with large-scale cast-in-situ concrete wall housing the pilot project, achieved initial success. This structure of the overall performance of the house. Compared with the prefabricated houses, the investment in prefabricated component plants and large transport equipment can be saved. Compared with the frame structure of the house, with steel, the wall decoration simple, the room without exposed beams and columns, cast-in wall surface, can reduce the renovation work, reduce labor intensity, mold turnover, short duration, easy process grasp.
From 1977 onwards, China adopted a large number of large-scale concrete construction of the external walls of brick wall, the large cast-in-situ technology (internal load-bearing walls), the traditional brick technology (external walls) and factory prefabricated technology , Balcony) combined with the three used in about 6 residential buildings. Since then, various types of large-scale cast-in-situ housing rapid development in all parts. Building and structural requirements In order to meet the needs of industrial production, the basic size of housing should be consistent with a certain modulus. In China, the bay and the depth should be in line with the multiple of 30 cm in order to use the standard model of the structural components, and to facilitate the finalization of the template. In the earthquake area to strive for the building body type rule, try to avoid the flat, facade sudden change, inside and outside vertical wall should straighten, the internal mold wall position can be staggered. Cast-in-situ wall houses are designed according to shear wall structure. The vertical load of the house (see load), wind load, earthquake action and temperature contraction are mainly affected by the reinforced concrete shear wall. The structure is constructed to ensure the safety of each shear wall and to enhance the connection between the shear walls and between the floor and the shear walls.�� [url=http://wpcdeckingprice.com/external/25.html]2015 New Items Hollow WPC decking 150x25mm Anti temperature[/url] [url=http://wpcdeckingprice.com/external/26.html]red oak hardwood flooring[/url] [url=http://wpcdeckingprice.com/external/27.html]plastic dustbin manufactures in dubai[/url] |
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