Hollow floor construction method using opening composite core mold

Abstract

The invention discloses a hollow floor construction method using an opening composite core mold. The composite core mold consists of a latticed framework, a face layer and at least three foot supporters, wherein the face layer and the framework jointly define a geometric body; the geometric body is hollow; an opening is formed in the bottom of the geometric body; and the foot supporters are positioned at the lower side of the opening and are exposed out of the face layer. The method has the critical steps that after the opening composite core mold is put in a gap position between ribs according to design requirements, concrete is cast for the first time to reach the opening position of the opening composite core mold, and vibration maintenance is performed; and then, the concrete is cast for the second time until the whole of the latticed ribs and cavity components is covered, and then, maintenance and mould removal are performed to form a cast-in-place concrete hollow floor. Compared with a conventional cavity construction process with the defects of complicated process and great construction difficulty, the hollow floor construction method provided by the invention has the advantages that the construction period can be effectively shortened; the construction difficulty is reduced; the labor cost is greatly reduced; and the transportation and storage of products are convenient.

Description

technical field [0001] The invention relates to a hollow floor production method, in particular to a hollow floor construction method using an open composite mandrel. Background technique [0002] With the rapid development of the economy, the urbanization process is accelerating, and the population is rapidly gathering in the city. Urban buildings are increasingly unable to meet people's needs for space, and urban buildings are striving to expand towards multiple and high-rise buildings. The acceleration of urban construction has also led to many revolutionary breakthroughs in construction technology, and one of them, the hollow floor technology, is eye-catching for its unique advantages. [0003] Hollow floor technology originated from prestressed concrete hollow prefabricated slabs in the 1960s and 1970s. Later, the method of embedding hollow circular tube mandrels and then pouring concrete became the second generation product of hollow floors, and finally developed to th...

AI Technical Summary

Problems solved by technology

For example, plastic and foam cavities are light in weight, but they tend to float up when pouring concrete, so that the amount of concrete used in the entire floor cannot be controlled. If the control is not proper, the entire floor will collapse.

Another example is that the cavity of concrete material is heavy, and it is not easy to float when pouring concrete. However, due to its heavy weight, the progress in the installation process is slow, and it is not easy to carry out high-rise or super-high-rise transportation.

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