Core tube type broken bridge composite wall system for low-energy-consumption building and construction method

Abstract

The invention discloses a core tube type broken bridge composite wall system for a low-energy-consumption building and a construction method. The system comprises a concrete fireproof shear protectionlayer, a prefabricated insulation board, and a floor core tube system. The core tube system comprises a concrete building main body structure layer, door type systems and curtain wall systems which are arranged in the concrete fireproof shear protection layer, the prefabricated insulation board and the concrete building main body structure layer. According to the core tube type broken bridge composite wall system for the low-energy-consumption building and the construction method, a door-type structure, a curtain wall structure and a building main body of a concrete shear wall structure are combined to form an outer wall broken bridge heat preservation system of a core tube type anti-seismic structure type, so that the earthquake resistance and other safety performance of the whole building are improved. Due to the fact that the concrete fireproof shear protection layer with a shear wall function is adopted, floor overhanging is not needed, heat preservation and bridge cutoff treatment are thoroughly achieved at the outer side end of a floor, and the building energy-saving effect is improved. The core tube type broken bridge composite wall system for the low-energy-consumption building is applied to the field of low-energy-consumption buildings with low floors, multiple floors and high floors.

Description

technical field [0001] The invention relates to the technical field of building thermal insulation wall engineering, in particular to a core tube type broken bridge composite wall system and construction method for low energy consumption buildings. Background technique [0002] Safety impact: The concrete fire protection layer, prefabricated insulation board, and shear wall joints of the main structural layer of the concrete building in the existing low-energy structural insulation integrated building technology are fragile, which can easily cause the concrete fire protection layer and insulation layer to fall off or crack. It causes a great safety hazard; because the joints are weak, the anti-seismic performance of the external wall insulation system is very poor. Once there is an earthquake, the entire concrete fire protection layer and insulation layer will fall off, causing greater damage to life and property. [0003] Impact on energy saving: The existing low-energy-con...

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Problems solved by technology

[0002] Safety impact: The concrete fire protection layer, prefabricated insulation board, and shear wall joints of the main structural layer of the concrete building in the existing low-energy structural insulation integrated building technology are fragile, which can easily cause the concrete fire protection layer and insulation layer to fall off or crack. Causes a great potential safety hazard; because the joints are weak, the anti-seismic performance of the external wall insulation system is very poor. Once an earthquake occurs, the entire concrete fire protection layer and insulation layer will fall off, causing greater damage to life and property

[0003] Impact on energy saving: The existing low-energy-consumption structural insulation integrated building technology has too many connectors between the concrete fire protection layer, the insulation layer and the structural layer, and the connectors are basically made of metal, resulting in a large number of cold bridges on the exterior wall of the building, making the exterior The energy saving effect of the wall is seriously reduced

[0004] The existing low-energy building technology has poor insulation treatment of windows and too many cold bridges, which cannot meet the energy-saving requirements of low-energy buildings. Even if it can barely meet the energy-saving requirements of low energy consumption greater than or equal to 90%, it is necessary to increase window bridge treatment and passive windows. The material and labor consumption make the construction cost very high

[0005] Some of the existing low-energy-consumption structural and thermal insulation integrated building technologies use the floor overhanging technology. Although the risk of falling off the fire protection layer and the thermal insulation layer is solved, the thermal insulation of the outer end of the floor and the cold bridge cannot be properly handled, so that the energy-saving effect of the building can be improved. severe decline

[0006] The existing low-energy structural insulation integration technology does not completely treat the top floor parapet insulation and cold bridge of the building, and the processing method is very complicated, not only the cost is high, but the energy-saving effect is also very poor

[0007] The existing low-energy structural insulation integration technology requires building exterior wall air-conditioning panels and downpipes to be rooted on the main shear wall, and insulation problems and cold bridges cannot be completely resolved, which seriously reduces the building's energy-saving effect

[0008] The prefabricated insulation board of the existing low energy consumption structural insulation integrated building technology is easy to deviate when the prefabricated insulation board is pouring concrete, which affects the quality of the project

[0009] Therefore, the current low energy consumption structural insulation integrated building technology makes it difficult to achieve the requirement of 90% or more for building comprehensive energy saving

Even if it is barely achieved, the cost is huge

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