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Construction method for post-cast belt of cast-in-place reinforced concrete structure

A technology of reinforced concrete and post-pouring strips, which is applied in the direction of building structure, construction, and building material processing. It can solve the problems of uneven settlement, concrete deformation, and large plane size of the main building and annex buildings, and shorten the construction period. Reduce the amount of input and improve the overall effect

Active Publication Date: 2014-03-05
WENZHOU HONGYUAN HYDROPOWER CONSTR
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Problems solved by technology

However, the plane size is often large. Affected by dry shrinkage, autogenous shrinkage, plastic shrinkage, chemical shrinkage, and temperature shrinkage, the concrete is deformed, and the settlement of the main building and the annex is uneven, resulting in cracks that are not conducive to the structure.

Method used

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  • Construction method for post-cast belt of cast-in-place reinforced concrete structure
  • Construction method for post-cast belt of cast-in-place reinforced concrete structure

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Embodiment Construction

[0031] The post-cast belt construction method of the cast-in-situ reinforced concrete structure of the present invention utilizes the post-cast belt for segmental construction, establishes the post-cast belt formwork, protects the post-cast belt through the support system, and provides retention time for digestion, settlement, shrinkage, and deformation during construction. Improved project quality.

[0032] The following materials are required for this construction method:

[0033] 1. 15 thick plywood for construction, φ48 steel pipe, steel pipe jacking, 50×100 wooden frame, dense mesh steel wire mesh, iron wire, cement, etc.

[0034] 2. Construction tools and equipment:

[0035] 2.1. Template prefabrication and installation tools: electric saw, electric planer, hand saw, spirit level, spirit level, steel tape measure;

[0036] 2.2. Reinforcement processing and installation equipment: electric welding machine, bending machine, cutting machine;

[0037] 2.3. Concrete pourin...

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Abstract

The invention discloses a construction method for a post-cast belt of a cast-in-place reinforced concrete structure. The method comprises the following steps that (a), a post-cast belt structure is designed; (b), construction is prepared; (c), form erecting of the post-cast belt is conducted; (d), concrete at the two sides of the post-cast belt are cast; (e), a formwork is preliminarily removed; (f), concrete of the post-cast belt is cast; (g), after the intensity of the post-cast belt concrete reaches the design or code requirements, a post-cast belt formwork and a support are removed. According to the construction method for the post-cast belt of the cast-in-place reinforced concrete structure, the input amount of the steel pipe supports is lowered, the cost can be saved on the year-on-year basis, construction progress is accelerated at the same time, and the construction period is shortened. Due to the fact that a permanent settlement joint is not arranged, the construction structural design is simplified, the integrity of a building is improved, and the factors of leakage of water are reduced.

Description

technical field [0001] The invention relates to a construction method for pouring strips after the reinforced concrete structure is fixed Background technique [0002] With the rapid development of my country's economic construction and the continuous improvement of construction technology, cast-in-place reinforced concrete structures are more and more widely used in various fields of civil engineering. The cast-in-place reinforced concrete structure has the characteristics of good overall performance, strong earthquake resistance, and flexible spatial layout. Industrial and civil buildings often adopt this structural form. However, the plane size is often large. Affected by dry shrinkage, autogenous shrinkage, plastic shrinkage, chemical shrinkage, and temperature shrinkage, the concrete is deformed, and the settlement of the main building and the annex is uneven, resulting in cracks that are unfavorable to the structure. In order to overcome the harmful expansion and sett...

Claims

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Application Information

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IPC IPC(8): E04B1/682E04G21/00
Inventor 林勇军李向荣陈昌坤
Owner WENZHOU HONGYUAN HYDROPOWER CONSTR
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