Hook-shaped steel core composite connecting piece prefabricated sandwiched heat insulation wallboard and manufacturing method thereof

Abstract

The invention discloses a hook-shaped steel core composite connecting piece prefabricated sandwiched heat insulation wallboard and a manufacturing method thereof .Internal and external acanthuses are formed by pouring concrete, a middle sandwich layer is a heat insulation board, and the three-layer structure is connected into a whole through hook-shaped steel core composite connecting pieces, wherein the hook-shaped steel core composite connecting pieces are hook-shaped reinforcing steel bar core continuous fiber composite connecting pieces and high-strength steel wire core model plastic compression molding steel core composite connecting pieces .The steel core composite connecting pieces of each kind are of a straight insertion type and an oblique insertion type .The internal and external concrete acanthuses are connected together through the straight insertion type hook-shaped steel core composite connecting pieces in a 90-degree orthogonal mode, and hook heads of the connecting pieces can hook an eternal acanthus internal reinforcing steel bar net; the internal and external wall acanthuses are connected together through the oblique insertion type steel core composite connecting pieces in a 45-degree oblique crossing mode .The prefabricated concrete sandwiched heat insulation external wall has the advantages of being high in anti-shear and anti-bending performance, good in heat insulation effect, high in construction efficiency, low in manufacturing cost, safe and reliable to use and the like .

Description

technical field [0001] The invention relates to an assembled prefabricated concrete sandwich thermal insulation wall panel of a hook-shaped steel core composite connector and a manufacturing method thereof, belonging to the application technical field of the assembled prefabricated concrete thermal insulation wall panel in construction engineering. Background technique [0002] Under the background that the country vigorously promotes "construction industrialization and housing industrialization" and promotes green buildings and green construction, building products must meet the requirements of "four festivals and one environmental protection". Energy-saving walls are the main means to achieve building energy conservation. As an energy-saving wall, it has been widely promoted in the field of construction. At present, there are three types of thermal insulation exterior walls commonly used in engineering, including internal thermal insulation, external thermal insulation and...

AI Technical Summary

Problems solved by technology

At present, the connectors used in prefabricated concrete sandwich insulation exterior wall panels at home and abroad mainly include metal materials and fiber-reinforced composite plastics, and there are many problems in both: although metal connectors such as steel bars have the advantages of high strength and low price, but The thermal conductivity of the material is large, and there is a "thermal bridge" effect, which affects the insulation effect of the wall, and the corrosion resistance of the steel bar is poor, which affects the life of the component. If stainless steel connectors are used, the cost will increase greatly; fiber reinforced composite plastic (FRP) It has the advantages of high tensile strength, strong corrosion resistance, small thermal conductivity, and low price, but its low shear strength is a brittle material.

The existence of these problems has seriously hindered the large-scale application of prefabricated concrete sandwich insulation exterior wall panels in the market

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