Internal mould, demoulding method thereof, mould for prefabricated concrete tower sections and production method

Abstract

The invention provides an internal mould, a demoulding method thereof, a mould for prefabricated concrete tower sections and a production method. The internal mould provided by the invention comprises an internal formwork, both ends of the internal formwork are connected, so that the internal formwork is curved into the shape of a barrel, both ends of the internal formwork are provided with slopes, and the slopes of both ends of the internal formwork are matched with each other and form a demoulding opening. The demoulding method of the internal mould provided by the invention includes the following step: one end, which is located inside the demoulding opening, of the internal formwork is moved simultaneously along the radial direction and tangent direction of the internal mould to get close to the center of the internal mould and extend into the space in the internal formwork. The internal mould provided by the invention can be used for casting a whole ring, the overall elastic deformation of the internal formwork can be conveniently utilized to implement the demoulding and restoration of the internal mould, and a great deal of welding work can be reduced.

Description

technical field [0001] The invention relates to the manufacture of concrete components, in particular to an inner mold, its demoulding method, a mold for a prefabricated concrete tower section and a manufacturing method. Background technique [0002] The towers of wind power generators include steel cylinder towers and prefabricated concrete towers, and prefabricated concrete towers generally include several prefabricated concrete tower sections (or called prefabricated concrete towers) stacked in sequence. When building precast concrete towers, it is generally necessary to prefabricate precast concrete tower sections in the factory first, and then transport them to the site for installation. During installation, these precast concrete tower sections stacked in sequence are connected by prestressed cables. To manufacture precast concrete tower sections, corresponding molds for pouring the concrete are required. Since the prefabricated concrete tower section is cylindrical (...

AI Technical Summary

Problems solved by technology

[0004] The cylindrical precast concrete tower section cannot be directly manufactured by using the above mold, that is, the above mold cannot realize the whole ring casting of the precast concrete tower section

If you want to realize the whole ring pouring of the precast concrete tower section, you have to design the mold as a full circle structure, and in order to make the inner mold can be demoulded smoothly, you need to design the inner mold as a piece of two, three or more pieces The inner mold is spliced ​​together, so before the concrete is poured, it is necessary to assemble multiple pieces of the inner mold together to form a complete inner mold, and when demoulding, it is necessary to place the inner molds in the existing order. Remove one by one to achieve demoulding. When pouring the next precast concrete tower section, it is necessary to assemble and disassemble the mold again. This operation will inevitably seriously affect the prefabrication efficiency of the concrete tower section, which is laborious and inefficient.

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