Making method of prefabricated concrete casting structure of 3D printing concrete shear wall

Abstract

The invention discloses a making method of a prefabricated concrete casting structure of a 3D printing concrete shear wall. The making method comprises the steps that (a) a first layer of prefabricated concrete casting is made by adopting 3D printing; (b) a first layer of binding bars and / or horizontal bars is arranged at the top of the first layer of prefabricated concrete casting; (c) a 3D printing technology is adopted to make a second layer of prefabricated concrete casting at the top of the first layer of prefabricated concrete casting to make two ends of the first layer of binding bars and / or horizontal bars embedded at the connecting position of the first layer of prefabricated concrete casting and the second layer of prefabricated concrete casting; (d) the steps (b) and (c) are repeated till all layer of prefabricated concrete casting are made to reach designed elevation. The formwork swelling is prevented by prefabricating the binding bars between the inner wall face and the outer wall face of the prefabricated concrete casting, the horizontal bars of the shear wall are also embedded in the prefabricated concrete casting, inconvenient construction brought during post-installation of the horizontal bars is avoided, and the construction is simplified.

Description

[0001] The present invention is a divisional application of the Chinese patent application "Concrete shear wall structure and construction method based on 3D printing" (application date: August 29, 2014) with application number 201410437818.X. technical field [0002] The invention relates to the field of shear wall construction, in particular to a method for manufacturing a prefabricated concrete shell structure of a 3D printed concrete shear wall. Background technique [0003] The traditional shear wall construction adopts cast-in-place concrete construction. First, the shear wall reinforcement cage is bound, including the shear wall horizontal reinforcement and the shear wall vertical reinforcement. After the reinforcement cage is bound, the shear wall formwork is installed on both sides of the reinforcement cage. And the formwork on both sides is connected by the way of piercing tie bars to prevent the expansion of the mold during the later concrete pouring process. Final...

AI Technical Summary

Problems solved by technology

[0006] However, this prefabricated reinforced concrete structure cannot be applied to the construction of shear walls due to the inability to install tie bars. Therefore, it is necessary to propose a method of how to install tie bars in the prefabricated concrete shell to prevent concreting. Die expansion problem

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