Post-cast strip construction method

Abstract

The invention discloses a post-cast strip construction method. The post-cast strip construction method comprises the steps that a hole is formed in an existing concrete structure, and a first supporting table is formed in a first port of the hole; a prefabricated concrete slab is manufactured, and a first lap joint table is arranged on the edge of the prefabricated concrete slab; the prefabricated concrete slab is installed in the position, close to the first port, in the hole, so that the first lap joint table is in lap joint with the first supporting table; a first steel reinforcement framework is arranged in a space defined by the prefabricated concrete plate and the inner wall of the hole; the first steel reinforcement framework is connected with a second steel reinforcement framework in an existing concrete structure; and concrete is poured on the first steel reinforcement framework in the space, so that the concrete and the first steel reinforcement framework form a cast-in-place concrete plate. According to the scheme, the problems that the period is long and the construction cost is high in a cast-in-place construction mode of a support method can be solved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a post-cast belt construction method. Background technique [0002] The post-casting belt construction method (referred to as the post-casting method) is a commonly used construction method. The post-casting belt formed by the post-casting belt construction method can prevent the cast-in-place reinforced concrete structure from shrinking or uneven settlement. Harmful cracks. [0003] During the construction of the main structure of the subway station, holes of preset size (for example, 14m×7m) need to be reserved on the middle plate and the top plate of the main structure, and the reserved holes become the shield hoisting holes. The hoisting hole of the shield tunneling machine can be used for hoisting and transporting materials during subsequent shield tunneling construction (such as hoisting and transporting building materials, transporting soil materials, etc.)....

AI Technical Summary

Problems solved by technology

Of course, there are the above-mentioned problems when using the bracket method to block the shield hoisting hole, and there are also the above-mentioned disadvantages when using the bracket method to seal other holes.

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