A cast-in-place prefabricated assembly structure without disassembly integrally assembled thermal insulation external formwork

Abstract

The invention relates to a cast-in-situ prefabricated non-dismantling integrally-assembled heat preservation outer formwork assembling structure. The cast-in-situ prefabricated non-dismantling integrally-assembled heat preservation outer formwork assembling structure comprises prefabricated outer wall composite heat preservation formwork monomers; the prefabricated outer wall composite heat preservation formwork monomers are spliced to form a prefabricated integrally-assembled heat preservation outer formwork; the prefabricated integrally-assembled heat preservation outer formwork is fixedly installed on a prefabricated outer wall heat preservation outer formwork frame which is provided with upper transversely-penetrating wall steel bars, a prefabricated outer wall heat preservation outer formwork frame body and opposite-pull bolt assemblies of an inner formwork; the prefabricated outer wall composite heat preservation formwork monomers are provided with first prefabricated connecting parts inserted into the wall steel bars. Compared with the prior art, the cast-in-situ prefabricated non-dismantling integrally-assembled heat preservation outer formwork assembling structure has the advantages that integral prefabricating and hoisting are adopted, and therefore secondary construction of a heat preservation layer is omitted; the heat preservation layer and the main structure are formed integrally and are same in life, and the durability of the heat preservation layer is improved; the heat preservation performance of a building wall can be improved, and the construction quality is improved; by adopting the system, construction of outer formworks and outer scaffolds can be omitted, and the construction efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of building exterior walls, and in particular relates to a cast-in-place prefabricated non-disassembly integral assembly thermal insulation external formwork assembly structure. Background technique [0002] Enforcement of building energy efficiency standards and strict control of construction waste and construction noise by urban management. [0003] In the traditional shear wall construction, after the steel bars are bound, the workers install the external and internal templates and support systems on the scaffolding platform and the floor respectively, and the internal and external templates are internally supported (generally fixed on the reinforcement cage with steel bars of equal length to the wall thickness) ) and the paired bolts or the paired flat irons form a concrete pouring cavity, and after the concrete reaches the formwork removal strength, the formwork and supports are removed. [0004] At pr...

AI Technical Summary

Problems solved by technology

However, during implementation, the strength of the precast concrete exterior wall formwork and insulation layer alone cannot bear the self-weight of the poured concrete and the lateral pressure on the formwork during vibration. In addition, after pouring and forming in time, from the durability and firmness test, the insulation layer basically bears the weight of its own weight and the weight of the precast concrete exterior wall formwork, and then causes it to fall off; the main reason is that the insulation layer and the wall concrete are directly poured into shape. Under the action of large tension, the thermal insulation layer is variable, resulting in hollowing at the joint with the wall concrete; the bonding between the two material thermal insulation layers and the concrete does not fit well, and its bonding force is relatively poor, which cannot be achieved at all. The expected purpose, and then the implementation of this technology cannot be implemented and promoted. Similarly, this problem also exists at the junction of the precast concrete exterior wall formwork and the insulation layer

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