Fabricated reinforced concrete column component

Abstract

The utility model relates to an assembly type reinforced concrete column member which comprises column body concrete, common longitudinal bars, stirrups, first embedded parts and second embedded parts, the common longitudinal bars are bundled and fixed through the stirrups, and meanwhile the common longitudinal bars and the stirrups are arranged in a column body of the assembly type reinforced concrete column member and do not penetrate through a column section connecting interface. The first embedded part is arranged on the lower portion of the assembly type reinforced concrete column component and extends out of the column bottom, the second embedded part is arranged on the upper portion of the assembly type reinforced concrete column component and extends out of the column top, the common longitudinal bars and the stirrups form a column body reinforcement cage poured with column body concrete, and a post-pouring concrete area of an upper-layer column connection node and a lower-layer column connection node is only concentrated within the plate thickness range. Compared with a traditional mode concentrated within the beam height range, the post-pouring area is greatly reduced, meanwhile, the upper-layer column and the lower-layer column do not need to be connected through a large number of steel bars, and only a small number of embedded parts need to be connected. The structure is simple, construction is convenient, cost is saved, and good engineering advantages and economic benefits are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of reinforced concrete columns, and particularly relates to a prefabricated reinforced concrete column member. Background Art

[0002] Prefabricated concrete structures have the characteristics of factory production and assembled construction. Compared with traditional cast-in-situ concrete structures, they have prominent energy-saving and environmental protection advantages and have developed rapidly in China in recent years. In prefabricated concrete frame structures, frame columns are important load-bearing members and need to bear vertical loads and horizontal loads simultaneously. The connection nodes between precast columns are more critical parts. The mechanical reliability of the node connection will determine the seismic capacity of the overall structure, and the structural rationality of the node connection will affect the construction efficiency and quality.

[0003] In recent years, many scholars at home and abroad have studied the connections of prefabricated concrete frame columns and formed many research results. Since the connection requires reliable performance and clear force transmission, and at the same time the connection node structure should be easy to construct, reasonably designing and optimizing the node structure form will be conducive to promoting the development of prefabricated concrete structures.

[0004] In traditional prefabricated reinforced concrete column assembly structures, the commonly used connection methods for precast column connections include grouting sleeve connections, slurry anchor lapping, etc.

[0005] The grouting sleeve connection is currently the most main connection method for prefabricated concrete column members. It realizes the connection of steel bars by embedding finished sleeves in precast concrete column members, inserting steel bars into the sleeves and injecting grouting material, including grouting sleeves, grouting holes, slurry outlet holes, upper vertical members, lower vertical members, steel bars embedded in the sleeves, and connected steel bars. The disadvantages of this technology are that there are many steel bar connections, multiple steel bars need to be centered on the construction site and connected one by one, the construction efficiency is low, and the joint cost is relatively high. If there are bubbles, blockages, slurry leakage, poor fluidity of the grouting material or foreign objects in the sleeve during grouting in the grouting sleeve connection, it will lead to incomplete grouting, resulting in unqualified connection quality. If the components are not properly protected after grouting, gaps will also appear between the grouting material, the sleeve and the steel bars, reducing the connection performance and making it difficult to guarantee the construction quality.

[0006] Another commonly used one is the spiral stirrup slurry anchor lapping, including longitudinal bars, stirrups, anchorage length, and connecting bars. In the prefabricated reinforced concrete column member, reserved holes are provided, and after the steel bars (i.e., longitudinal bars and connecting bars) are inserted, grouting connection is carried out. The concrete outside the two lapped steel bars is strengthened by spiral steel bars (i.e., stirrups), and the concrete is constrained, so that the steel bars form a lap joint. The connection strength of this technology is weaker than that of sleeve grouting, the requirements for the hole-forming process of the holes are high, the production is relatively complex, and the steel bars also need to be connected one by one, resulting in low construction efficiency. Summary of the Utility Model

[0007] In view of the above problems, the utility model provides an assembled reinforced concrete column member which can realize rapid assembly between precast reinforced concrete columns, has a simple node construction, can be connected without special tools, and can ensure the construction quality.

[0008] The technical solution adopted by the utility model to solve the above technical problems is as follows: an assembled reinforced concrete column member, which includes column body concrete, ordinary longitudinal bars, stirrups, a first embedded part and a second embedded part. The ordinary longitudinal bars are bundled and fixed by the stirrups. At the same time, the ordinary longitudinal bars and stirrups are arranged inside the column body of the assembled reinforced concrete column member and do not penetrate the column section connection interface. The first embedded part is arranged at the lower part of the assembled reinforced concrete column member and extends out from the column bottom. The second embedded part is arranged at the upper part of the assembled reinforced concrete column member and extends out from the column top. The ordinary longitudinal bars and stirrups form a column body steel cage for pouring the column body concrete.

[0009] Preferably, the first embedded part includes a lower steel plate, a first vertical steel pipe / section steel and a plurality of first shear-resistant components fixed on the surface of the first vertical steel pipe / section steel. The lower steel plate is arranged at the bottom of the first vertical steel pipe / section steel. At the same time, the top of the first vertical steel pipe / section steel is poured inside the column body of the assembled reinforced concrete column member.

[0010] Preferably, the second embedded part includes an upper steel plate, a second vertical steel pipe / section steel and a plurality of second shear-resistant components fixed on the surface of the second vertical steel pipe / section steel. The upper steel plate is arranged at the top of the second vertical steel pipe / section steel. At the same time, the bottom of the second vertical steel pipe / section steel is poured inside the column body of the assembled reinforced concrete column member.

[0011] Preferably, both the ordinary longitudinal bars and the stirrups are in several numbers; both the first embedded part and the second embedded part are in several numbers.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. A novel assembled reinforced concrete column member proposed by the utility model solves the problems of high cost of grouting sleeve connection of existing assembled reinforced concrete columns, large number of steel bar connections, difficult control of grouting quality, as well as complex embedding, cumbersome construction and poor overall performance of slurry anchor lap connection. The post-cast concrete area of the column connection node is only concentrated within the slab thickness range, while the height of the post-cast concrete area of the traditional column connection node is generally within the beam height range. The post-cast area is greatly reduced. At the same time, there is no need for a large number of steel bar connections between the upper and lower columns, and only a small number of embedded parts need to be connected. In addition, the assembled reinforced concrete column proposed by this utility model has a simple structure, convenient construction, cost savings, improves construction efficiency and quality stability, and has good engineering advantages and economic benefits. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the traditional slurry anchor lap joint structure;

[0015] Figure 2 It is a schematic diagram of the structure of the prefabricated reinforced concrete column member of the present utility model;

[0016] Figure 3 It is a schematic diagram of the internal structure of the present utility model;

[0017] Figure 4 It is a schematic diagram of the front view of the present utility model;

[0018] Figure 5 It is a schematic diagram of the top view of the present utility model;

[0019] Figure 6 It is a schematic diagram of the structure of the first embedded part in the present utility model (502 is a steel pipe);

[0020] Figure 7 It is a schematic diagram of the structure of the second embedded part in the present utility model (502 is a steel pipe);

[0021] Figure 8 It is a schematic diagram of the structure of the first embedded part in the present utility model (502 is a profiled steel);

[0022] Figure 9 It is a schematic diagram of the structure of the second embedded part in the present utility model (502 is a profiled steel);

[0023] Figure 10 It is a schematic diagram of the connection detail of the upper and lower columns of the present utility model;

[0024] Figure 11 It is a schematic diagram of the difference between the present utility model and the traditional post-cast area. Detailed implementation manners

[0025] Next, the present utility model will be described in detail in conjunction with Figures 1-11 The present utility model will be explained by means of its illustrative embodiments and descriptions, but it is not intended to limit the present utility model.

[0026] A prefabricated reinforced concrete column member, which includes column body concrete 2, ordinary longitudinal bars 3, stirrups 4, a first embedded part 5 and a second embedded part 6. The ordinary longitudinal bars are bundled and fixed by the stirrups. At the same time, the ordinary longitudinal bars and the stirrups are both arranged inside the column body of the prefabricated reinforced concrete column member and do not penetrate the column section connection interface. The first embedded part is arranged at the lower part of the prefabricated reinforced concrete column member and extends out from the column bottom. The second embedded part is arranged at the upper part of the prefabricated reinforced concrete column member and extends out from the column top. The ordinary longitudinal bars and the stirrups form a column body steel cage for pouring the column body concrete.

[0027] Specifically, the first embedded part 5 includes a lower steel plate 501, a first vertical steel pipe / section steel 502, and several first shear-resistant components 503 fixed on the surface of the first vertical steel pipe / section steel 502. The lower steel plate 501 is arranged at the bottom of the first vertical steel pipe / section steel 502, and at the same time, the top of the first vertical steel pipe / section steel is cast into the column body of the precast reinforced concrete column member; the second embedded part 6 includes an upper steel plate 601, a second vertical steel pipe / section steel 602, and several second shear-resistant components 603 fixed on the surface of the second vertical steel pipe / section steel 602. The upper steel plate 601 is arranged at the top of the second vertical steel pipe / section steel 602, and at the same time, the bottom of the second vertical steel pipe / section steel is cast into the column body of the precast reinforced concrete column member.

[0028] In the present utility model, there are several ordinary longitudinal bars and stirrups; there are several first embedded parts and several second embedded parts. At the same time, several first embedded parts are evenly distributed at the bottom of the precast reinforced concrete column member, and several second embedded parts are evenly distributed at the top of the precast reinforced concrete column member.

[0029] During construction, the assembly of the reinforced concrete column member is realized through the following steps:

[0030] S1, prefabricate the upper and lower precast reinforced concrete column members;

[0031] S2, install the lower precast reinforced concrete column member;

[0032] S3, hoist the upper precast reinforced concrete column member into place so that it is located on the lower precast reinforced concrete column member;

[0033] S4, abut and align the lower steel plate 501 of the first embedded part 5 of the upper precast reinforced concrete column member with the upper steel plate 601 of the second embedded part 6 of the lower precast reinforced concrete column member, and weld and fix them;

[0034] S5, pour the concrete in the connection area to complete the construction of the precast concrete column member.

[0035] Finally, as shown in Figure 10 、 Figure 11 After the assembled precast reinforced concrete column member is assembled with the beam 19 and the slab 18, it is connected through the post-cast concrete in the connection area. In the present utility model, the post-cast concrete area of the column connection node is only concentrated within the slab thickness range (as shown at B in Figure 11 ), while the height of the post-cast concrete area of the traditional column connection node is generally within the beam height range (as shown at X in Figure 11 ). The post-cast area is greatly reduced. At the same time, there is no need for a large amount of steel bar connection between the upper and lower columns, and only a small number of embedded parts need to be connected. Moreover, the precast reinforced concrete column proposed by the utility model has a simple structure, convenient construction and cost savings, and has good engineering advantages and economic benefits.

[0036] The above has introduced in detail the technical solutions provided by the embodiments of the present utility model. Specific examples are used herein to elaborate on the principles and implementation manners of the embodiments of the present utility model. The description of the above embodiments is only applicable to helping understand the principles of the embodiments of the present utility model. At the same time, for those of ordinary skill in the art, according to the embodiments of the present utility model, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present utility model.

Claims

1. An assembled reinforced concrete column member, characterized in that: It includes a column body concrete (2), ordinary longitudinal reinforcement bars (3), stirrups (4), a first embedded part (5) and a second embedded part (6). The ordinary longitudinal reinforcement bars are bundled and fixed by the stirrups. At the same time, both the ordinary longitudinal reinforcement bars and the stirrups are arranged inside the column body of the precast reinforced concrete column member and do not penetrate the column section connection interface. The first embedded part is arranged at the lower part of the precast reinforced concrete column member and extends out from the column bottom. The second embedded part is arranged at the upper part of the precast reinforced concrete column member and extends out from the column top. The ordinary longitudinal reinforcement bars and the stirrups form a column body steel reinforcement cage for pouring the column body concrete.

2. The prefabricated reinforced concrete column member according to claim 1, wherein: The first embedded part (5) includes a lower steel plate (501), a first vertical steel pipe / section steel (502) and a plurality of first shear resistance components (503) fixed on the surface of the first vertical steel pipe / section steel (502). The lower steel plate (501) is arranged at the bottom of the first vertical steel pipe / section steel (502). At the same time, the top of the first vertical steel pipe / section steel is poured inside the column body of the precast reinforced concrete column member.

3. The prefabricated reinforced concrete column member according to claim 1, wherein: The second embedded part (6) includes an upper steel plate (601), a second vertical steel pipe / section steel (602) and a plurality of second shear resistance components (603) fixed on the surface of the second vertical steel pipe / section steel (602). The upper steel plate (601) is arranged at the top of the second vertical steel pipe / section steel (602). At the same time, the bottom of the second vertical steel pipe / section steel is poured inside the column body of the precast reinforced concrete column member.

4. The prefabricated reinforced concrete column member according to claim 1, characterized in that: Both the ordinary longitudinal reinforcement bars and the stirrups are several in number; both the first embedded part and the second embedded part are several in number.

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