Construction method of reinforced concrete structure by using profile steel to replace part of steel bars

Abstract

The invention provides a construction method of a reinforced concrete structure by using profile steel to replace part of steel bars. The profile steel is mainly used to replace part of the steel bars to manufacture column stiffening members, beam stiffening members, wall stiffening members and plate stiffening members; and the stiffening members can be produced in a factory and then transported to a construction site for assembly and erection. The construction method comprises the steps of lofting, base plate construction, assembly of the stiffening members, establishment of an intelligent monitoring system, water and electricity consumption piping, formwork assembly, concrete grouting, formwork removal and the like. The two opposite side faces of the wall stiffening members and the plate stiffening members are staggered in the transverse direction and the straight direction to form a grid frame shape through the steel bars, the outer ends of the transverse and straight steel bars extend into columns and beams so that formworks can be erected conveniently and the strength of the formworks can be improved, and the intelligent monitoring system is used for monitoring construction safety. In the abovementioned way, the construction time and construction manpower can be greatly saved, and construction safety can be guaranteed.

Description

technical field [0001] The invention relates to a construction method for assembling a reinforced concrete structure by replacing part of steel bars with section steel. Background technique [0002] The construction steps of the reinforced concrete structure of traditional buildings (referred to as RC structure) are: lofting, steel bar assembly, water and electricity consumption piping, formwork assembly, concrete grouting, formwork removal, painting and decoration, etc. It uses steel bars as structural members, please refer to Figure 1, Figure 1A As shown, the reinforcement member 1 of traditional RC structure is divided into column reinforcement member 10, beam reinforcement member 11, plate reinforcement member 12 and wall reinforcement member 13 etc., wherein column reinforcement member 10 is made up of column main reinforcement 100 and column stirrup 101 etc. Iron wires are bound one by one, and the beam reinforcement member 11 is formed by binding the beam main reinfo...

AI Technical Summary

Problems solved by technology

[0004] 1. More than 90% of the entire process of the existing RC structure needs to be assembled and manufactured at the construction site, the overall operation efficiency is poor, and the accuracy and quality control are also poor

[0005] 2. With global warming, the construction of existing RC structures is often carried out under exposure to scorching heat and dirty environments, or cannot be constructed due to rainy weather, which affects work efficiency and also causes young people to be reluctant to invest in the construction industry. one of

[0006] 3. With the growth of the global economy, it is becoming increasingly difficult to introduce foreign labor, coupled with the aging of local skilled labor, resulting in a serious shortage of workers in the construction industry

[0007] 4. Due to the large slenderness ratio of the steel bars, and only iron wires are used to bind the steel bars, the assembled steel bar frame is not stable.

[0008] 5. In order to facilitate the construction of the RC structure, the main steel bars of the columns of each floor must be overlapped or connected with a coupler; relatively, the main steel bars of the beams are relatively less; so the existing RC structure has "strong beams". Potential problem of "weak columns", which can be cited by earthquakes causing buildings to collapse almost as a result of column failure

[0009] 6. When assembling the steel bar of the foundation column, due to the lack of precise and stable placement points, it can only be positioned by the simple tripod support type of steel bar erection. In addition to being difficult to accurately position, it is also difficult to ensure its uprightness

[0010] 7. During the construction of the existing RC structure, steel bar assembly, water and electricity consumption piping and formwork assembly usually need to be constructed alternately, often causing mutual waiting. In addition to wasting the construction period, the water and electricity consumption pipes are sometimes pierced when assembling the formwork smell

[0011] 8. There is often no accurate and consistent reference line between formwork assembly and steel bar assembly, which often results in insufficient protective layer on one side and too thick protective layer on the other side

[0012] 9. It is difficult to assemble formwork for columns, beams, slabs, walls and other special-shaped RC components with different curvatures. Usually, it is necessary to use polylon to assist in the assembly. In addition to the concerns of polluting the environment, the assembly accuracy not good

[0013] 10. Due to the large amount of steel bars at the joints of beams and columns, it is not conducive to concrete pouring. In addition to the phenomenon of concrete honeycomb, the bad behavior of adding water and grouting is also common.

[0014] 11. Most of the traditional RC structure projects are carried out on the construction site. The construction accuracy is poor. After the formwork is removed, a lot of painting, leveling and decoration are required. In addition to labor and time-consuming, it also increases the construction cost.

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