Connecting joint of stiff column and reinforced concrete beam

Abstract

The utility model discloses a connecting node of a stiff column and a reinforced concrete beam. The connecting node comprises a narrow lap joint plate and a wide lap joint plate, the narrow lap joint plate is welded to the outer side of the profile steel of the stiff column and located within the range of steel bars in the stiff column, and the upper row of longitudinal bars in the reinforced concrete beam extend to the position close to the profile steel of the stiff column and are welded to the upper side of the narrow lap joint plate in a lap joint mode. The wide lap joint plate is welded to the outer side of profile steel of the stiff column and located under the narrow lap joint plate, the wide lap joint plate extends out of the range of steel bars in the stiff column, the next row of longitudinal bars in the reinforced concrete beam extend out of the projection range of the narrow lap joint plate and are welded to the upper side of the wide lap joint plate in a lap joint mode, and open grooves are distributed in the edge of the wide lap joint plate. Longitudinal bars in the stiff columns penetrate through the corresponding open grooves. According to the joint, the internal steel bars of the reinforced concrete beam are connected with the section steel of the stiff column, the internal steel bars of the reinforced concrete beam can be positioned and cannot interfere with the internal steel bars of the stiff column, and the stability of the joint is enhanced.

Description

Technical Field

[0001] The utility model relates to a building node structure, in particular to a connection node between a rigid column and a reinforced concrete beam. Background Art

[0002] The rigid column is a column structure with concrete wrapped outside the steel section. When it is connected to the reinforced concrete beam, at the node, the internal steel bars of the reinforced concrete beam are currently only anchored in the concrete of the rigid column and are not connected to the steel section of the rigid column. Therefore, the stability of the connection node between the rigid column and the reinforced concrete beam is slightly insufficient; if you want to connect the internal steel bars of the reinforced concrete beam with the steel section of the rigid column, you will definitely encounter problems with steel bar positioning and interference with the internal steel bars of the rigid column. There is currently no solution. Summary of the invention

[0003] The utility model aims to provide a connection node between a rigid column and a reinforced concrete beam, which connects the internal steel bars of the reinforced concrete beam with the steel section of the rigid column and can position the internal steel bars of the reinforced concrete beam without interfering with the internal steel bars of the rigid column, thereby enhancing the stability of the node.

[0004] The technical solution adopted by the utility model is:

[0005] A connection node between a rigid column and a reinforced concrete beam comprises a narrow lap plate and a wide lap plate; the narrow lap plate is welded to the outside of the steel section of the rigid column, the narrow lap plate is located within the range of the steel bars inside the rigid column, the upper row of longitudinal bars inside the reinforced concrete beam extends to the vicinity of the steel section of the rigid column and is lap-welded to the upper side of the narrow lap plate; the wide lap plate is welded to the outside of the steel section of the rigid column and is located directly below the narrow lap plate, the wide lap plate extends beyond the range of the steel bars inside the rigid column, the lower row of longitudinal bars inside the reinforced concrete beam extends beyond the projection range of the narrow lap plate and is lap-welded to the upper side of the wide lap plate, the edge of the wide lap plate is provided with open grooves, and the longitudinal bars inside the rigid column pass through the corresponding open grooves.

[0006] Preferably, a narrow lap plate and a wide lap plate form a pair, and two upper and lower rows of internal longitudinal reinforcements of the reinforced concrete beam form a group, and each pair of narrow lap plates and wide lap plates corresponds one-to-one to each group of internal longitudinal reinforcements of the reinforced concrete beam.

[0007] Preferably, the topmost and bottommost rows of longitudinal bars in the reinforced concrete beam are arranged densely compared to the longitudinal bars in the remaining rows.

[0008] Preferably, bolts are provided on the outer side of the steel section of the rigid column.

[0009] Preferably, the upper row of longitudinal bars inside the reinforced concrete beam is double-sided welded to the upper side of the narrow lap plate, and the length of the weld is five times the outer diameter of the longitudinal bars.

[0010] Preferably, the next row of longitudinal bars inside the reinforced concrete beam is double-sided welded to the upper side of the wide lap plate, and the length of the weld is five times the outer diameter of the longitudinal bars.

[0011] The beneficial effects of the utility model are:

[0012] In this node, in order to ensure that the spacing of the steel bar arrangement meets the requirements of the specification, the internal longitudinal bars of the reinforced concrete beam are arranged in double rows. The narrow lap plate and the wide lap plate can not only connect the double row of longitudinal bars inside the reinforced concrete beam with the steel section of the rigid column, but also position the double row of longitudinal bars inside the reinforced concrete beam up and down; and, since the spacing between the double rows of longitudinal bars inside the reinforced concrete beam is small, that is, the spacing between the narrow lap plate and the wide lap plate is also small, it is not easy to weld. Therefore, the next row of longitudinal bars inside the reinforced concrete beam is extended beyond the projection range of the narrow lap plate, and the wide lap plate is extended beyond the range of the steel bars inside the rigid column, which facilitates welding without reducing the length of the lap; since the wide lap plate extends beyond the range of the steel bars inside the rigid column, it will interfere with the internal longitudinal bars of the rigid column. Therefore, open grooves are distributed on the edge of the wide lap plate for the internal longitudinal bars of the rigid column to pass through, avoiding interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a top view of the connection node between the rigid column and the reinforced concrete beam in the embodiment of the utility model. For the convenience of observation, the concrete is not shown, and only the steel structure part before pouring is shown.

[0015] Figure 2 for Figure 1 A partial structural front view.

[0016] In the figure: 1-steel section of rigid column; 2-narrow lap plate; 3-wide lap plate; 4-open groove; 5-internal longitudinal reinforcement of reinforced concrete beam; 6-internal longitudinal reinforcement of rigid column; 7-bolt. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0019] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0020] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0021] The features and performance of the present application are further described in detail below in conjunction with the embodiments.

[0022] Embodiment 1

[0023] At present, the steel bars inside the reinforced concrete beam are not connected to the steel section 1 of the rigid column, so the stability of the connection node between the rigid column and the reinforced concrete beam is slightly insufficient. If you want to connect the steel bars inside the reinforced concrete beam to the steel section 1 of the rigid column, you must solve the problem of steel bar positioning and interference with the steel bars inside the rigid column. In order to solve the above problems, this embodiment provides a connection node between the rigid column and the reinforced concrete beam, such as Figure 1 and Figure 2 As shown, it includes a narrow lap plate 2 and a wide lap plate 3; wherein:

[0024] The narrow lap plate 2 is welded to the outside of the steel section 1 of the rigid column. The narrow lap plate 2 is located within the range of the internal steel bars of the rigid column. The upper row of longitudinal bars 5 inside the reinforced concrete beam extends to the vicinity of the steel section 1 of the rigid column and is overlap-welded to the upper side of the narrow lap plate 2. Figure 1 and Figure 2 ;

[0025] The wide lap plate 3 is welded to the outside of the steel section 1 of the rigid column and is located directly below the narrow lap plate 2. The wide lap plate 3 extends beyond the range of the internal steel bars of the rigid column. The next row of longitudinal bars 5 inside the reinforced concrete beam extends beyond the projection range of the narrow lap plate 2 and is lap-welded to the upper side of the wide lap plate 3. The edge of the wide lap plate 3 is distributed with open grooves 4. The internal longitudinal bars 6 of the rigid column pass through the corresponding open grooves 4. Figure 1 and Figure 2 .

[0026] A narrow lap plate 2 and a wide lap plate 3 form a pair, and two upper and lower rows of the internal longitudinal reinforcement 5 of the reinforced concrete beam form a group, and each pair of narrow lap plates 2 and wide lap plates 3 respectively corresponds to each group of the internal longitudinal reinforcement 5 of the reinforced concrete beam. The number of pairs of narrow lap plates 2 and wide lap plates 3 is set according to the number of groups of the internal longitudinal reinforcement 5 of the reinforced concrete beam, and can be two pairs, three pairs, or even more, without limitation. In this embodiment, two pairs of narrow lap plates 2 and wide lap plates 3 are used.

[0027] In order to improve the surface strength of the reinforced concrete beam, in this embodiment, preferably: Figure 2 As shown, the top and bottom rows of longitudinal bars 5 in the reinforced concrete beam are arranged densely compared to the longitudinal bars 5 in the other rows.

[0028] In order to improve the structural strength, in this embodiment, preferably: Figure 1 and Figure 2 As shown, bolts 7 are provided on the outer side of the steel section 1 of the rigid column.

[0029] In order to ensure the welding effect, in this embodiment, preferably: the upper row of longitudinal reinforcements 5 inside the reinforced concrete beam and the upper side of the narrow lap plate 2 are double-sided welded, and the weld length is five times the outer diameter of the longitudinal reinforcement 5; the lower row of longitudinal reinforcements 5 inside the reinforced concrete beam and the upper side of the wide lap plate 3 are double-sided welded, and the weld length is five times the outer diameter of the longitudinal reinforcement 5.

[0030] This node connects the internal steel bars of the reinforced concrete beam with the steel section 1 of the rigid column, and can position the internal steel bars of the reinforced concrete beam without interfering with the internal steel bars of the rigid column, thereby enhancing the stability of the node: in this node, in order to ensure that the spacing of the steel bars meets the requirements of the specification, the internal longitudinal bars 5 of the reinforced concrete beam are arranged in double rows, and the narrow lap plate 2 and the wide lap plate 3 can not only connect the double-row longitudinal bars 5 of the reinforced concrete beam with the steel section 1 of the rigid column, but also position the double-row longitudinal bars 5 of the reinforced concrete beam up and down; and, because the reinforced concrete The spacing between the double rows of longitudinal reinforcements 5 inside the beam is small, that is, the spacing between the narrow lap plate 2 and the wide lap plate 3 is also small, which makes welding difficult. Therefore, the next row of longitudinal reinforcements 5 inside the reinforced concrete beam is extended beyond the projection range of the narrow lap plate 2, and the wide lap plate 3 is extended beyond the range of the internal reinforcement of the rigid column, which facilitates welding without reducing the length of the lap. Since the wide lap plate 3 extends beyond the range of the internal reinforcement of the rigid column, it will interfere with the longitudinal reinforcement 6 inside the rigid column. Therefore, open grooves 4 are distributed on the edge of the wide lap plate 3 for the internal longitudinal reinforcement 6 of the rigid column to pass through, thereby avoiding interference.

[0031] The embodiments described above are part of the embodiments of the present application, rather than all of the embodiments. The detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

Claims

1. A connection node between a rigid column and a reinforced concrete beam, characterized in that: It includes a narrow lap plate and a wide lap plate; the narrow lap plate is welded to the outside of the steel section of the rigid column, the narrow lap plate is located within the range of the internal steel bars of the rigid column, the upper row of longitudinal bars inside the reinforced concrete beam extends to the vicinity of the steel section of the rigid column and is lap-welded to the upper side of the narrow lap plate; the wide lap plate is welded to the outside of the steel section of the rigid column and is located directly below the narrow lap plate, the wide lap plate extends out of the range of the internal steel bars of the rigid column, the lower row of longitudinal bars inside the reinforced concrete beam extends to the outside of the projection range of the narrow lap plate and is lap-welded to the upper side of the wide lap plate, the edge of the wide lap plate is provided with open grooves, and the internal longitudinal bars of the rigid column pass through the corresponding open grooves.

2. The connection node between the rigid column and the reinforced concrete beam according to claim 1, characterized in that: A narrow lap plate and a wide lap plate form a pair, and the upper and lower rows of internal longitudinal reinforcements of the reinforced concrete beam form a group. Each pair of narrow lap plates and wide lap plates corresponds one by one to each group of internal longitudinal reinforcements of the reinforced concrete beam.

3. The connection node between the rigid column and the reinforced concrete beam according to claim 1, characterized in that: The top and bottom rows of longitudinal bars in reinforced concrete beams are densely arranged compared to the other rows of longitudinal bars.

4. The connection node between a rigid column and a reinforced concrete beam according to claim 1, characterized in that: Studs are provided on the outside of the steel section of the rigid column.

5. The connection node between a rigid column and a reinforced concrete beam according to claim 1, characterized in that: The upper row of longitudinal bars inside the reinforced concrete beam are welded to the upper side of the narrow lap plate on both sides, and the weld length is five times the outer diameter of the longitudinal bars.

6. The connection node between a rigid column and a reinforced concrete beam according to claim 1, characterized in that: The next row of longitudinal bars inside the reinforced concrete beam are welded to the upper side of the wide lap plate on both sides, and the weld length is five times the outer diameter of the longitudinal bars.

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