Cavity-free composite heat-insulation thermal-break bridge structure and construction method

Abstract

The invention provides a cavity-free composite heat-insulation thermal-break bridge structure and a construction method. The thermal-break bridge structure comprises an inner structure layer, a middleheat-insulation layer and an outer protecting layer; the inner structure layer comprises a light steel framework, a light concrete wall body and a connecting rack; the light steel framework and the connecting rack are poured in the light concrete wall body; the connecting rack is fixedly connected to the light steel framework; the middle heat-insulation layer consists of a plurality of B1 / B2-level heat-insulation materials which are connected; the outer protecting layer consists of a plurality of incombustible materials which are connected; the outer protecting layer and the middle heat-insulation layer are attached to be in a cavity-free state; and the outer protecting layer is fixedly connected with the inner structure layer through thermal-break bridge bolts. The construction method comprises the following steps: assembling the light steel framework and mounting the connecting rack; assembling the B1 / B2-level heat-insulation materials to form the middle heat-insulation layer; coating an adhesion layer; assembling incombustible materials to form the outer protecting layer; successively drilling out the middle heat-insulation layer, the adhesion layer and the outer protecting layer by using a drill bit; and penetrating a thermal-break bridge bolt in drilling holes, and fixedly connecting the thermal-break bridge bolt with the connecting rack; and pouring light concrete in theinner structure layer until the light concrete is solidified.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, in particular to a cavity-free composite thermal insulation bridge structure and a construction method. Background technique [0002] Building thermal bridges refer to reinforced concrete or metal beams / columns / ribs / fittings and other parts in the enclosure structures such as exterior walls and roofs. Due to the strong heat transfer capacity of these parts, the heat flow is relatively dense, and the inner surface temperature is relatively low. called a thermal bridge. [0003] Building exterior wall insulation is an important part of building energy conservation, and it is also an important part of building fire protection. The insulation materials used for building exterior wall insulation can be divided into A-level insulation materials and B-level insulation materials. If A-level insulation materials are used , it will lead to an increase in the cost of building exterior wall...

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Problems solved by technology

[0003] Building exterior wall insulation is an important part of building energy conservation, and it is also an important part of building fire protection. The insulation materials used for building exterior wall insulation can be divided into A-level insulation materials and B-level insulation materials. If A-level insulation materials are used , it will lead to an increase in the cost of building exterior wall insulation, and if B-grade insulation materials are used, it will cause fire hazards

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