A kind of lightweight preform and preparation method thereof

Abstract

The invention discloses a lightweight prefabricated body and a preparation method thereof. The lightweight prefabricated body comprises a hollow base body (1) or a solid lightweight base body (5), an upper layer plate (2), a lower layer plate (3) and steel bars component (4). The upper reinforcement mesh in the reinforcement assembly (4) is located above the base (1, 5), the lower reinforcement mesh in the reinforcement assembly (4) is located below the matrix (1, 5), and the Z-axis in the reinforcement assembly (4) The column reinforcement bars (4C) pass through the rectangular through holes of the base body (1, 5); the upper layer plate (2) made of concrete contains the upper layer reinforcement mesh, and the lower layer plate (3) made of concrete contains the lower layer reinforcement bars network. The present invention adopts a hollow base body (1) or a solid lightweight base body (5), which is supplemented by reinforcing steel bars in three directions. The upper and lower panels and the Z-axis support (6) are formed by injecting concrete to form a lightweight structure with spatial mechanical properties. Qualitative prefab.

Description

Technical field [0001] The invention involves a unit structure for prefabricated building houses. More specially, it refers to a light -quality pre -pre -made body for building house buildings, and the use of light -quality prefabricated bodies for prefabricated houses to build prefabricated houses. Background technique [0002] In the process of urbanization construction in my country, the environmental and resource issues caused by buildings, energy conservation, emission reduction, circular economy, and construction industrialization have become important issues in the construction of ecological civilization and sustainable development. [0003] The main components in the building are flooring, roof panels, and wall plates. The largest number is. It is very important to make floor, roof panels and wall plates. Pull out or fill in light body materials in the middle of the floor, roof panel and wall plate to make a hollow floor cover, sandwich floor cover, sandwich insulation wa...

AI Technical Summary

Problems solved by technology

[0005] Compared with solid slabs, the above technologies have made great technological progress, but there are still shortcomings: in terms of application range, the hollow slab body is only suitable for the manufacturing process of prefabricated slabs; filling hollows and interlayers is mostly used for cast-in-place concrete hollows Floor construction technology; prefabricated and laminated slabs with dual advantages of prefabrication and cast-in-place, only reinforced truss laminated slabs and prestressed concrete laminated slabs (PK slabs) have been successfully applied, but they are all solid slabs, self-heavy, The span is also limited

In terms of mechanical properties, the prefabricated concrete hollow slab with a hollow body is a one-way stressed slab. The existing prestressed concrete circular hole slab and SP prestressed hollow slab do not meet the design requirements of "strongly connected weak members". Poor, has become the bottleneck of its application; filling the hollow cast-in-place concrete hollow slab, one is a strip-shaped tubular body core, due to the different moments of inertia in the two directions of the tubular body, the rigidity is not uniform, and the span is larger and the thickness of the slab is thicker. The circular orifice plate has a lower hollow rate; the other is a square box-shaped body filled with a core, which forms a plane-structured cavity with poor mechanical properties, a large amount of structural steel bars, and stress concentration at the corners; in terms of materials and processes , the hollow core made of GRC material has a large damage rate, heavy weight, and is not convenient for laying pipelines.

In terms of pipeline maintenance, the design concept of the "CSI" century-old building was not considered; the existing interlayer only serves the functions of filling and insulation

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