The building formwork structure used in the construction of cast-in-place concrete structure is mainly composed of three parts: panel, supporting structure and connecting parts. The face plate is a bearing plate that directly contacts the newly poured concrete; the supporting structure is a temporary structure that supports the face plate, concrete and construction load, to ensure that the building formwork structure is firmly combined without deformation and damage; the connector is a component that connects the face plate and the supporting structure as a whole.
Building formwork is the shell and support of concrete casting. According to the nature of materials, it can be divided into building formwork, building wood glue board, laminating board, multilayer board, double-sided laminating, double-sided laminating building formwork, etc. According to the construction process conditions, the construction formwork can be divided into cast-in-place concrete formwork, pre assembled formwork, large formwork, jump formwork, etc. This paper briefly introduces the composite steel formwork as follows: the composite steel formwork is a new type of formwork with the advantages of strong universality, convenient installation and removal, and many turnover times in modern formwork technology. It can be used for the construction of cast-in-place reinforced concrete structure, and can be assembled into large formworks of beams, columns, walls and floors in advance according to the design requirements, which can be hoisted in place as a whole, and can also be adopted Use the method of bulk disassembly
The building formwork used in the construction of modern cast-in-place concrete structure is a kind of temporary model structure to ensure the concrete structure to be cast in accordance with the design requirements. It must bear the horizontal load (concrete side pressure) and vertical load (self weight of building formwork, material structure and construction load) during the construction of concrete structure.
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