Plastic building formwork is a kind of energy-saving and green environmental protection product. It is a new product after wood formwork, combined steel formwork, bamboo wood plywood formwork and all steel large formwork. It can completely replace the traditional steel formwork, wood formwork, square timber, energy saving and environmental protection, low amortization cost.
Building formwork is a kind of temporary structure. It is made according to the design requirements, so that the concrete structure and components can be shaped according to the specified position and geometric dimension, keep their correct position, and bear the self weight of building formwork and the load on it. The purpose of formwork engineering is to ensure the quality and construction safety of concrete engineering, speed up the construction progress and reduce the engineering cost.
The building formwork for the construction of modern cast-in-place concrete structure is a temporary model structure to ensure that the concrete structure is cast in accordance with the design requirements. It must bear the horizontal load (the side pressure of the concrete) and the vertical load (the self weight of the building formwork, the material structure and the construction load) during the construction of the concrete structure
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 formed by concrete pouring. According to the nature of materials, it can be divided into building formwork, building wood plywood, laminating board, multilayer board, double-sided laminating, double-sided laminating building formwork and other energy-saving building formwork. 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.
In this paper, a brief introduction of the composite steel formwork is given as follows: the composite steel formwork is a new type of formwork with strong universality, convenient assembly and disassembly, 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. The whole hoisting is done It can also be disassembled in bulk.
