Joint-reinforced reinforced concrete column

Abstract

This utility model relates to the field of building construction technology, specifically to a reinforced concrete column with joint reinforcement. It includes a column body and a beam-column joint, with the beam-column joint located on the column body and used to fix the frame beam. A column reinforcement cage is provided within the beam-column joint. The beam-column joint includes a concrete block and the joint reinforcement cage. The cross-sectional dimension of the concrete block is larger than the cross-sectional dimension of the column body, or the longitudinal width of the concrete block is larger than the longitudinal width of the column body. The joint reinforcement cage is anchored inside the concrete block and located on the outer periphery of the column reinforcement cage. This utility model, by adding an enlarged beam-column joint and designing a joint reinforcement cage to strengthen the beam-column joint, can form a vertical member with strong joint and weak component, meeting the requirements of seismic codes. It solves the problem that it is difficult to ensure that the beam-column joint design meets the design principles of strong column-weak beam and strong joint-weak component during the construction process of reinforced concrete columns, thus directly affecting the seismic performance of the structure.

Description

Technical Field

[0001] This utility model relates to the field of building construction, and in particular to a joint-reinforced reinforced concrete column. Background Technology

[0002] According to the relevant provisions of the "Standard for Seismic Design of Buildings" GB / T 50011-2010, the design of beam-column joints should meet the design principles of strong column-weak beam and strong joint-weak member. Common handling measures include the following: one is to leave it unattended, that is, only considering the load-bearing capacity of beams and columns, without considering the seismic structural requirements of strong joints. Figure 5 Secondly, increasing the overall column cross-section primarily aims to achieve a strong column-weak beam design, while also strengthening the joints to some extent. However, the beam strength is not enhanced, so the degree of reinforcement still falls short of the requirements for strong joints. Furthermore, this significantly increases costs and impacts building function and usability. When the beam span is large and the frame beam cross-section height is also large, it is difficult to ensure that the beam-column joint design meets the design principles of strong column-weak beam and strong joint-weak component design during actual construction, thus directly affecting the seismic performance of the structure.

[0003] Therefore, there is an urgent need for a concrete column whose beam-column joint design can meet the design principles of strong column-weak beam and strong joint-weak component to solve the above-mentioned technical problems. Utility Model Content

[0004] The main purpose of this utility model is to provide a joint-reinforced reinforced concrete column, which aims to solve the technical problem that the construction process of existing reinforced concrete columns is difficult to achieve in order to meet the design principles of strong column-weak beam and strong joint-weak component, thus directly affecting the seismic performance of the structure.

[0005] To achieve the above objectives, this utility model proposes a node-reinforced reinforced concrete column, comprising a column body and a beam-column node. The beam-column node is located on the column body and is used to fix the frame beam. A column reinforcement cage is provided inside the beam-column node. The beam-column node includes a concrete block and a node reinforcement cage. The cross-sectional dimension of the concrete block is larger than the cross-sectional dimension of the column body or the longitudinal section width of the concrete block is larger than the longitudinal section width of the column body. The node reinforcement cage is anchored inside the concrete block and located on the outer periphery of the column reinforcement cage.

[0006] A further improvement of the joint-reinforced reinforced concrete column of this invention is that the concrete strength grade of the concrete block is the same as or different from the concrete strength grade of the column.

[0007] The further improvement of the node-reinforced reinforced concrete column of this utility model is that the node reinforcement cage includes multiple vertical bars and multiple ring bars, the multiple ring bars are arranged at intervals along the vertical direction, and the multiple vertical bars are fixed at intervals along the circumferential direction to the inner side of the ring bars.

[0008] A further improvement of the node-reinforced reinforced concrete column of this utility model is that the annular steel bar and the column stirrups of the column reinforcement cage are on the same horizontal plane.

[0009] The further improvement of the joint-reinforced reinforced concrete column of this utility model is that the cross-section of the column is rectangular, and the cross-section of the beam-column joint is also rectangular.

[0010] A further improvement of the node-reinforced reinforced concrete column of this invention is that the longitudinal section of the concrete block is larger than the size of the frame beam.

[0011] The technical solution of this utility model has the following beneficial effects: This invention relates to a reinforced concrete column with enhanced joints. By adding enlarged beam-column joints and designing reinforced cages to strengthen these joints, a strong-joint-weak-member vertical member is formed, meeting seismic design requirements. This solves the technical problem of existing reinforced concrete columns where beam-column joint design fails to meet the strong-column-weak-beam and strong-joint-weak-member design principles, directly impacting the structure's seismic performance. This reinforced concrete column only increases the size and strengthens the structure at the joint locations. While meeting the seismic design requirements of strong-joint-weak-member structures, it offers the advantages of economy and ease of construction compared to systems that enlarge the entire column cross-section. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram showing the connection between the node-reinforced reinforced concrete column and the frame beams in two directions according to this utility model; Figure 2 This is a schematic diagram showing the connection between the node-reinforced reinforced concrete column and the frame beams in four directions according to this utility model; Figure 3 A longitudinal sectional view of the reinforcement configuration of the beam-column joint of the reinforced concrete column of this utility model. Figure 4 A perspective view of the reinforcement configuration of the beam-column joint of the reinforced concrete column according to this utility model; Figure 5 This is a longitudinal sectional view of a beam-column joint in the prior art.

[0014] Explanation of icon numbers: 1. Column; 101. Column stirrups; 102. Longitudinal reinforcement; 2. Beam-column joint; 201. Vertical reinforcement; 202. Ring reinforcement; 3. Frame beam. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0017] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0020] like Figures 1-4As shown, this utility model proposes a node-reinforced reinforced concrete column, including a column body 1 and a beam-column node 2. The beam-column node 2 is disposed on the column body 1 and is used to fix the frame beam 3. A column reinforcement cage is provided inside the beam-column node 2. The beam-column node 2 includes a concrete block and a node reinforcement cage. The cross-sectional dimension of the concrete block is larger than the cross-sectional dimension of the column body 1 or the longitudinal section width of the concrete block is larger than the longitudinal section width of the column body 1. The node reinforcement cage is anchored inside the concrete block and located on the outer periphery of the column reinforcement cage.

[0021] Specifically, such as Figure 1 and Figure 2 As shown, this utility model provides two connection methods between the reinforced concrete column and the frame beam 3. One method involves connecting the frame beam 3 to the beam-column joint 2 in two directions, as shown below. Figure 1 As shown; another method is the connection between the frame beam 3 and the beam-column node 2 in four directions, as shown. Figure 2 As shown, the longitudinal reinforcement 102 of the column reinforcement cage extends through beam-column node 2. The stirrups of the column reinforcement cage in beam-column node 2 area are the same as those in the non-node area, thereby reducing the material cost of the column 1 structure. This allows the node-reinforced reinforced concrete column to meet the design principles of strong column-weak beam and strong node-weak member in beam-column node 2, while also reducing construction costs.

[0022] Furthermore, the concrete strength grade of the concrete block can be different from that of the column 1. As long as the cross-section and longitudinal section of the concrete block are larger than the cross-sectional dimensions of the column 1 in one direction, the stress requirements of the beam-column joint 2 can be met. Alternatively, the cross-section of the concrete block can be larger than the cross-section of the column 1 on one side and flush with the cross-section of the column 1 on the other side.

[0023] Preferred, such as Figure 3 and Figure 4 As shown, the reinforcement cage of this node includes multiple vertical reinforcing bars 201 and multiple ring-shaped reinforcing bars 202. The multiple ring-shaped reinforcing bars 202 are arranged at intervals along the vertical direction, and the multiple vertical reinforcing bars 201 are fixed at intervals along the circumference to the inner side of the ring-shaped reinforcing bars 202. The arrangement of the vertical reinforcing bars 201 can improve the vertical tensile strength of the beam-column node 2, and the arrangement of the ring-shaped reinforcing bars 202 can improve the horizontal tensile strength of the beam-column node 2.

[0024] Preferably, the annular steel bar 202 and the column stirrups 101 of the column steel cage are on the same horizontal plane, so that they are consistent with the horizontal force of the column 1, and thus share the partial force of the column 1.

[0025] Preferably, the cross-section of the column 1 is rectangular, and the cross-section of the beam-column joint 2 is also rectangular. By making the cross-sectional dimensions of the beam-column joint 2 the same as those of the column 1, the beam-column joint 2 and the column 1 are subjected to the same force direction, thereby sharing the partial force of the column 1.

[0026] Preferably, the longitudinal section of the concrete block is larger than the size of the frame beam 3, thereby ensuring the effective force transmission of the frame beam 3 and transferring the force of the frame beam 3 to the beam-column joint 2 and the column 1, thereby ensuring the stability of the frame beam 3 and the column 1 and meeting the seismic performance of the structure.

[0027] This utility model relates to a node-reinforced reinforced concrete column. By adding an enlarged beam-column node 2 and designing a reinforced cage to strengthen the node 2, it forms a vertical member with a strong node and weak member, meeting the requirements of seismic design codes. This solves the technical problem that existing reinforced concrete column construction processes often fail to meet the design principles of strong column-weak beam and strong node-weak member for the beam-column node 2, thus directly affecting the seismic performance of the structure. This utility model's node-reinforced reinforced concrete column only increases the size and strengthens the structure at the node location. While meeting the seismic design requirements of strong node-weak member, it is more economical and easier to construct compared to structures that enlarge the entire column cross-section.

[0028] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A joint-reinforced reinforced concrete column, characterized in that, It includes a column (1) and a beam-column joint (2), the beam-column joint (2) is located on the column (1), and the beam-column joint (2) is used to fix the frame beam (3); the beam-column joint (2) is provided with a column reinforcement cage, the beam-column joint (2) includes a concrete block and a joint reinforcement cage, the cross-sectional dimension of the concrete block is larger than the cross-sectional dimension of the column (1) or the longitudinal section width of the concrete block is larger than the longitudinal section width of the column (1), and the joint reinforcement cage is anchored inside the concrete block and located on the outer periphery of the column reinforcement cage.

2. The reinforced concrete column with joint reinforcement as described in claim 1, characterized in that, The concrete strength grade of the concrete block may be the same as or different from that of the column (1).

3. The reinforced concrete column with joint reinforcement as described in claim 1, characterized in that, The node reinforcement cage includes multiple vertical steel bars (201) and multiple ring steel bars (202). The multiple ring steel bars (202) are arranged at intervals along the vertical direction, and the multiple vertical steel bars (201) are fixed at intervals along the circumferential direction to the inner side of the ring steel bars (202).

4. The node-reinforced reinforced concrete column as described in claim 3, characterized in that, The ring-shaped steel bar (202) and the column stirrups (101) of the column steel cage are on the same horizontal plane.

5. The reinforced concrete column with joint reinforcement as described in claim 1, characterized in that, The cross-section of the column (1) is rectangular, and the cross-section of the beam-column joint (2) is also rectangular.

6. The node-reinforced reinforced concrete column as described in claim 1, characterized in that, The longitudinal section of the concrete block is larger than that of the frame beam (3).

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