Prefabricated reinforced concrete column joint structure and joint assembly method

Abstract

The application discloses a prefabricated reinforced concrete column joint structure, which comprises a lower end head and an upper end head, a plurality of longitudinal reinforcements are uniformly distributed along the column edge in the column body, the longitudinal reinforcements are exposed from the end portions of the upper and lower end heads, protrusions are uniformly arranged on the upper and lower end heads, recesses are arranged at the centers of the upper and lower end heads, a lifting hole perpendicular to the column body is arranged on the upper end head, the recess of the upper end head is communicated with the lifting hole through a connecting hole, a pouring hole and a vent hole are further arranged on the lower end head, the pouring hole and the vent hole are designed to be upwardly inclined, and the pouring hole and the vent hole are communicated with the recess. The joint assembling method is as follows: when hoisting through the lifting hole, the column body is naturally perpendicular, and correction is not needed, so that the work efficiency can be improved; through pouring, venting and overflow through the pouring hole, the recess and the connecting hole, concrete pouring at the connecting position of the upper and lower end heads and concrete pouring at the lifting hole can be easily realized, other auxiliary tools are not needed, pouring construction is convenient, and the construction site is cleaner.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of building, and particularly relates to a prefabricated reinforced concrete column joint structure and a joint assembling method. BACKGROUND

[0002] At present, the construction of green buildings has great significance for changing the construction mode, energy saving and emission reduction in China, and the prefabricated reinforced concrete building structure technology is an important part of the green building construction technology in China. The current prefabricated reinforced concrete building structure technology has problems of high cost, low standardization degree, difficult transportation and structural safety hazards, and a new structure technology is urgently needed to replace it. The prefabricated reinforced concrete column joint mode and technology is an important part of the prefabricated reinforced concrete structure technology. At present, the prefabricated column prefabricated unit based on the floor is used in the market, and the joints of the columns are arranged at the floor, and the connection of the longitudinal reinforcement of the column is achieved by using the sleeve grouting technology. This technology not only has high cost, but also cannot guarantee the quality of the joint and has safety hazards. The present application fundamentally solves the above problems, is simple and clear, guarantees the quality of the joint, and perfectly solves the technical problems of prefabrication and construction. SUMMARY

[0003] In view of the above problems in the prior art, the present application provides a prefabricated reinforced concrete column joint structure and a joint assembling method.

[0004] The purpose of the present application is achieved in the following manner:

[0005] A prefabricated reinforced concrete column joint structure, comprising a lower end and an upper end of a prefabricated reinforced concrete column, a plurality of longitudinal reinforcements are uniformly distributed along the column edge in the column body, a lifting hole is arranged on the upper end, the lifting hole is perpendicular to the column body and penetrates the column body, protrusions are uniformly arranged on the upper end, the longitudinal reinforcements are exposed from the end of the upper end, a recess is further arranged at the center of the upper end, and the recess is communicated with the lifting hole through a connecting hole; protrusions are also uniformly arranged on the lower end, the longitudinal reinforcements are exposed from the end of the lower end, a recess is also arranged at the center of the lower end, and a pouring hole and an exhaust hole are further arranged on the lower end, the pouring hole and the exhaust hole are designed to be inclined upward, and the pouring hole and the exhaust hole are communicated with the recess.

[0006] The protrusions are located in the gap between the adjacent two longitudinal reinforcements.

[0007] The protrusions extend to the edge of the recess.

[0008] The protrusions are concrete protrusions.

[0009] There is at least one pouring hole and at least one exhaust hole.

[0010] A joint assembly method of a prefabricated assembly type reinforced concrete column joint structure, comprising the following steps:

[0011] First, prefabricate the prefabricated assembly type reinforced concrete column containing the upper end head and / or the lower end head;

[0012] Then, assemble the prefabricated assembly type reinforced concrete column containing the upper end head and / or the lower end head at the construction site, first hoist the prefabricated assembly type reinforced concrete column containing the upper end head into position, then hoist the prefabricated assembly type reinforced concrete column containing the lower end head into position, the protrusions on the upper end head and the lower end head are stacked and supported in correspondence with each other, the grooves on the upper end head and the lower end head also correspond to each other, and the exposed steel bars on the upper end head and the lower end head are welded or threaded to each other;

[0013] Then, seal the formwork around the column body, pour concrete into the column body from the inclined pouring hole, exhaust through the exhaust hole, and overflow the cement slurry, the concrete enters the groove on the lower end head from the pouring hole, realizes the pouring connection of the lower end head and the upper end head, and continues to enter the connecting hole through the groove on the upper end head, realizes the pouring of the hoisting hole on the upper end head, and the concrete solidifies to reach the construction strength.

[0014] The application discloses a prefabricated assembly type reinforced concrete column joint structure and a joint assembly method, the hoisting hole is arranged near the upper end head, the hoisting hole is perpendicular to the column body and is on the center line of the column body, the column body is naturally perpendicular during hoisting and does not need to be corrected, and thus the work efficiency is improved; the pouring, exhaust and overflow through the pouring hole, the groove and the connecting hole can easily realize the concrete pouring of the connection between the upper end head and the lower end head and the concrete pouring of the hoisting hole, other auxiliary tools are not needed, the pouring construction is convenient, and the construction site is cleaner. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the prefabricated assembly type reinforced concrete column containing the upper end head.

[0016] Figure 2 is the A-A view of Figure 1 .

[0017] Figure 3 is the prefabricated assembly type reinforced concrete column containing the lower end head.

[0018] Figure 4 is the B-B view of Figure 3 .

[0019] Figure 5 is the prefabricated assembly type reinforced concrete column after the assembly of the upper end head and the lower end head. DETAILED DESCRIPTION

[0020] As Figure 1 , Figure 2As shown in the figure, a prefabricated reinforced concrete column joint structure includes the lower end and the upper end of the prefabricated reinforced concrete column, and a plurality of longitudinal reinforcement 3 are evenly arranged in the column body 1 along the column edge. The upper end is provided with a lifting hole 8, the lifting hole 8 is perpendicular to the column body and penetrates the column body, and is located on the center of gravity line of the column body. When hoisted through the lifting hole 8, the column body is just vertical and does not need special correction. The upper end is evenly provided with a protrusion 2, which is preferably a concrete protrusion. The protrusion 2 is located between two longitudinal reinforcement 3, and the shape and size of the protrusion are not special. The role of the protrusion is to temporarily support the lower column body on the upper column body. The protrusion 2 extends to the edge of the groove 4. The longitudinal reinforcement 3 is exposed from the end of the upper end. The center of the upper end is also provided with a groove 4. The groove 4 is communicated with the lifting hole 8 through the connecting hole 7.

[0021] As shown in the figure, Figure 3 , Figure 4 The lower end is also evenly provided with a protrusion 2, and the longitudinal reinforcement 3 is exposed from the end of the lower end. The center of the lower end is also provided with a groove 4. The lower end is also provided with at least one pouring hole 5 and at least one exhaust hole 6. The pouring hole 5 and the exhaust hole 6 are both designed to be upwardly inclined. The pouring hole 5 and the exhaust hole 6 are both communicated with the groove 4. The upward inclination refers to the extension direction of the pouring hole 5 and the exhaust hole 6 from the groove in the column body to the edge of the column body, and the higher is the upper and the lower is the lower. The inclined design makes the concrete flow easily in the pouring hole, and the pouring hole is designed in the column body, so that the construction site is clean and tidy, and the surface of the column body will not be left with concrete.

[0022] As shown in the figure, Figure 5 A joint assembly method of a prefabricated reinforced concrete column joint structure, comprising the following steps:

[0023] First, the prefabricated reinforced concrete column containing the upper end and the lower end is respectively prefabricated; then, the prefabricated reinforced concrete column containing the upper end and the lower end is assembled on the construction site. The prefabricated reinforced concrete column containing the upper end is hoisted in place first, and then the prefabricated reinforced concrete column containing the lower end is hoisted in place. The protrusions 2 on the upper end and the lower end correspond to each other and are supported. The grooves 4 on the upper end and the lower end correspond to each other. The exposed steel bars 3 on the upper end and the lower end are welded or threaded connected with each other; then, the formwork around the column body is sealed, the concrete is poured into the column body from the pouring hole 5 on the lower end, the exhaust hole 6 is exhausted and the overflow cement slurry is discharged, the concrete enters the groove 4 on the lower end from the pouring hole 5 to realize the pouring connection of the lower end and the upper end, and the concrete continues to enter the connecting hole 7 through the groove 4 on the upper end to realize the pouring of the lifting hole 8 on the upper end; after the concrete solidifies to the construction strength, the new assembly work is continued.

[0024] The application discloses a prefabricated reinforced concrete column joint structure and a joint assembling method. The lifting hole is arranged near the upper end, is perpendicular to the column body, and is on the center line of the column body. The column body is naturally vertical during lifting, and correction is not needed, so that the work efficiency is improved. The concrete pouring of the upper and lower end connecting positions and the concrete pouring of the lifting hole are easily realized through pouring of the pouring hole, the groove and the connecting hole, exhaust of the exhaust hole and overflow, other auxiliary tools are not needed, the pouring construction is convenient, and the construction site is cleaner.

[0025] The above merely describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present application, and these should be considered as the protection scope of the present application.

Claims

1. A precast assembled reinforced concrete column joint structure, comprising a lower end and an upper end of a precast assembled reinforced concrete column, wherein a plurality of longitudinal reinforcement bars (3) are evenly distributed along the column edge inside the column body (1), characterized in that: The upper end is provided with a lifting hole (8), which is perpendicular to the column and penetrates the column. The lifting hole (8) is on the center line of the column. When lifting, the column is naturally vertical. The upper end is provided with a uniformly distributed protrusion (2), and the longitudinal reinforcement (3) is exposed from the end of the upper end. The center of the upper end is also provided with a groove (4), and the groove (4) is connected to the lifting hole (8) through a connecting hole (7). The lower end is also provided with a uniformly distributed protrusion (2), and the longitudinal reinforcement (3) is exposed from the end of the lower end. The center of the lower end is also provided with a groove (4). The lower end is also provided with a pouring hole (5) and a venting hole (6). The pouring hole (5) and the venting hole (6) are designed to be inclined upward. The pouring hole (5) and the venting hole (6) are both connected to the groove (4). The pouring is carried out through the pouring hole (5), the groove (4) and the connecting hole (7), and the venting hole (6) is used to release air and overflow, so as to realize the concrete pouring at the connection of the upper and lower ends and the concrete pouring of the lifting hole (8).

2. The precast assembled reinforced concrete column joint structure according to claim 1, characterized in that: The protrusion (2) is located in the gap between two adjacent longitudinal bars.

3. The precast assembled reinforced concrete column joint structure according to claim 2, characterized in that: The protrusion (2) extends to the edge of the groove (4).

4. The precast assembled reinforced concrete column joint structure according to claim 1, characterized in that: The protrusion (2) is a concrete protrusion.

5. The precast assembled reinforced concrete column joint structure according to claim 1, characterized in that: There is at least one pouring hole (5) and at least one venting hole (6).

6. The method for assembling a precast reinforced concrete column joint structure as described in any one of claims 1-5, characterized in that: Includes the following steps: First, precast assembled reinforced concrete columns with upper and / or lower ends are precast and formed respectively; Then, the precast assembled reinforced concrete columns with upper and / or lower ends are assembled at the construction site. First, the precast assembled reinforced concrete columns with upper ends are hoisted into place, and then the precast assembled reinforced concrete columns with lower ends are hoisted into place. The protrusions (2) on the upper and lower ends are superimposed and supported by each other. The grooves (4) on the upper and lower ends are also corresponding to each other. The exposed steel bars on the upper and lower ends are welded to each other or connected by tapered threads. Then, the template around the column is sealed, and concrete is poured into the column through the inclined pouring hole (5). The vent hole (6) is used to vent and overflow cement slurry. The concrete enters the groove (4) on the lower end from the pouring hole (5) to realize the grouting connection between the lower end and the upper end. The concrete continues to enter the connection hole (7) through the groove (4) on the upper end to realize the grouting of the hoisting hole (8) on the upper end. The concrete solidifies to the workable strength.

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