Prefabricated heat preservation wall body

Abstract

The invention belongs to the technical field of civil engineering, and concretely relates to prefabricated heat preservation wall body. The prefabricated heat preservation wall body consists of a heat preservation layer, a concrete internal wall panel, a concrete external wall panel and an FRP connecting piece, the concrete internal wall panel is internally provided with longitudinally arranged steel bars and transversely arranged steel bars, the concrete external wall panel is internally provided with longitudinal arranged steel bars and transversely arranged steel bars, the FRP connecting piece is of a recumbent H structure and consists of a ventral shield and flange girths, two flange girths are provided in the invention and are respectively arranged at the two ends of the ventral shield; the heat preservation layer is arranged between the concrete internal wall panel and the concrete external wall panel and is internally provided with hole slots which are arranged in a crisscross way, and the FRP connecting piece is inserted in the hole slots; the end of the heat preservation wall body is provided with a splice bar which is of a U-shape structure, the two ends of the splice bar are respectively inserted into the concrete external wall panel and the concrete internal wall panel. The invention realizes a novel prefabricated heat preservation wall body with an integral structural function, has the advantages of low heat conductivity coefficient, good corrosive nature, simple and convenient construction and the like, and has relatively extensive application prospect in the field of constructional engineering.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a prefabricated thermal insulation wall. Background technique [0002] The total building area in my country is increasing at a rate of 15% to 20% per year, and the energy directly consumed by buildings in the process of construction and use accounts for more than 30% of the total energy consumption of the whole society, and continues to rise. The national and local "ten In the first five-year construction plan, building energy conservation is regarded as one of the main energy-saving construction goals. In the complex system engineering of building energy saving, maintaining structure energy saving is the most important part of the system engineering. [0003] As the main building maintenance structure, although the existing prefabricated thermal insulation wall has better thermal performance than the traditional single material wall, it also has shortcomin...

AI Technical Summary

Problems solved by technology

The thermal insulation wall connectors developed in China usually use metal lattice bars, which are prone to hot and cold bridges at the joints and reduce the wall insulation effect; the metal connecting bars have poor corrosion resistance and durability, causing potential damage to the wall during use. Security risks

Although there are some prefabricated thermal insulation walls developed abroad, the connectors are made of fiber-reinforced plastics instead of metal materials to reduce the thermal bridge effect and improve the corrosion resistance and durability of the connectors, but the connectors are in the same direction in the wall. Arrangement, so that the connectors cannot fully exert their mechanical performance in the two directions of the wall plane, and there are no other structural measures at the ends of the two concrete wall panels inside and outside the wall, which will easily cause the two walls to be misaligned at the ends during use. Move the gap, so that moisture can penetrate into the EPS insulation layer in the middle of the wall to reduce its insulation effect

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