Spiral stirrup reinforcing structure for reinforced concrete column and construction method thereof

Abstract

The invention discloses a spiral stirrup reinforcement structure of a reinforced concrete column, which relates to the technical field of building structures. A reinforcement cage is arranged on the side of the bottom of the reinforced concrete column to be reinforced, and the height of the reinforcement cage is equal to the plasticity of the bottom of the reinforced concrete column to be reinforced. The length of the hinge area, the reinforcement cage includes a spiral stirrup and more than one vertical longitudinal reinforcement, the vertical longitudinal reinforcement is located inside the spiral stirrup, and the spiral stirrup is fixedly connected with the vertical longitudinal reinforcement, to be reinforced The bottom side of the reinforced concrete column is poured with a concrete layer covering the reinforcement cage. The invention also discloses a construction method of the reinforced concrete column spiral stirrup reinforcing structure. The spiral stirrup reinforcement structure of the reinforced concrete column is used to realize the small construction workload and simple construction process. In view of the phenomenon that the reinforced concrete column ends in the earthquake, the column bottom at the relatively weak point is reinforced, and the reinforced concrete column is partially reinforced. The reinforcement realizes the seismic reinforcement of the whole column.

Description

technical field [0001] The invention relates to the technical field of building structures, in particular to a reinforced concrete column spiral stirrup reinforcement structure and a construction method thereof. Background technique [0002] Buildings often need to strengthen their structures due to changes in building functions, building aging, natural disasters or human factors. At the current stage, in addition to meeting the requirements of bearing capacity, structural reinforcement must also consider the seismic requirements, so that the reinforced structure can meet the corresponding seismic requirements. my country's anti-seismic fortification standards can be summarized as "small earthquakes are not damaged, moderate earthquakes can be repaired, and large earthquakes do not collapse." When a building does not meet the requirements of the current design codes and cannot meet the current anti-seismic fortification standards, it is necessary to carry out targeted struct...

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Problems solved by technology

However, when using these reinforcement methods to strengthen reinforced concrete columns, there are problems such as complicated construction procedures, slow construction speed, and how to ensure that the reinforcement materials have sufficient durability.

For example, using enlarged cross-sections to strengthen reinforced concrete columns will lead to heavy wet work workload on the construction site and a long construction period. In addition, the increase in the size of the column components may affect its use function and the mechanical performance of other components; the use of pasted reinforcement materials To strengthen reinforced concrete columns, it is necessary to consider the durability of the reinforcement material and the adhesion between the reinforcement material and the surface of the column. It is necessary to carry out fire and anticorrosion treatment on the reinforcement material and organic glue to increase the service life of the material.

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