Cantilever beam and beam column connecting structure

Abstract

The cantilever beam comprises a beam body and a steel bar assembly arranged in the beam body, the beam body is provided with a fixed connection end and a cantilever end which are oppositely arranged in the x direction, and a drainage groove extending in the y direction is formed in the beam body. The beam body is sequentially provided with a main body reinforcing steel bar area, a groove side reinforcing steel bar area, a groove lower reinforcing steel bar area and a cantilever end reinforcing steel bar area from the fixed connection end to the cantilever end, the reinforcing steel bar assembly comprises a first main reinforcing steel bar, a first reinforcing steel bar and a plurality of stirrups arranged in the x direction at intervals, and the stirrups extend in the z direction; the first main reinforcement is located on the lower portion of the beam body and extends to the cantilever end reinforcement area from the main body reinforcement area, the first reinforcing rib comprises an anchoring section extending to the under-groove reinforcement area from the cantilever end reinforcement area, and the anchoring section and the first main reinforcement are connected through a plurality of stirrups. According to the cantilever beam and the beam column connecting structure, the problem that after a drainage groove is formed in an existing cantilever beam to improve the drainage efficiency, the structural strength of the groove opening is low is solved.

Description

Technical Field

[0001] This utility model relates to the field of architectural design and construction technology, and in particular to a cantilever beam and beam-column connection structure. Background Technology

[0002] Nowadays, many types of buildings use open-style exterior corridors. While this form has advantages such as natural ventilation and lighting, it is also prone to problems such as water and snow accumulation. Furthermore, exterior corridors often use cantilever beams for structural support. Since exterior corridors are external areas with thinner building surfaces, if only sloping drainage is used, there are significant limitations on drainage distance and efficiency.

[0003] Therefore, it is necessary to open a structural slot on the cantilever beam to increase the depth of the drainage ditch and fundamentally solve the drainage problem caused by insufficient ditch height. However, the structural strength at the slot of the cantilever beam is low because of the slot. Utility Model Content

[0004] The main purpose of this utility model is to propose a cantilever beam and beam-column connection structure, which aims to solve the problem that the structural strength at the groove opening is low after the existing cantilever beam has a drainage groove to improve drainage efficiency.

[0005] To achieve the above objectives, this utility model proposes a cantilever beam, comprising a beam body and a steel reinforcement assembly disposed within the beam body. The beam body has a fixed end and a cantilever end arranged opposite each other in the x-direction. A drainage groove extending in the y-direction is provided on the beam body. From the fixed end to the cantilever end, the beam body is sequentially provided with a main reinforcement area, a groove side reinforcement area, a groove bottom reinforcement area, and a cantilever end reinforcement area. The steel reinforcement assembly includes a first main bar, a first reinforcing bar, and multiple stirrups spaced apart in the x-direction. Each stirrup extends in the z-direction. The first main bar is located at the lower part of the beam body and extends from the main reinforcement area to the cantilever end reinforcement area. The first reinforcing bar includes an anchorage section extending from the cantilever end reinforcement area to the groove bottom reinforcement area. The anchorage section and the first main bar are connected by the multiple stirrups.

[0006] According to some embodiments of the present invention, the steel reinforcement assembly further includes a second main reinforcement bar, which is located at the upper part of the beam body and extends from the main reinforcement bar area to the groove side reinforcement bar area. The first main reinforcement bar and the second main reinforcement bar are connected by multiple stirrups.

[0007] According to some embodiments of the present invention, the reinforcing bar assembly further includes a second reinforcing bar, which is connected to one end of the second main reinforcing bar near the drainage channel, and the second reinforcing bar is connected to the plurality of stirrups located in the reinforcing bar area below the channel and the reinforcing bar area at the cantilever end.

[0008] According to some embodiments of the present invention, the second reinforcing bar includes a first connecting segment and a second connecting segment. One end of the first connecting segment is connected to the second main reinforcing bar, and the other end is connected to the second connecting segment. The second connecting segment extends from the under-groove reinforcing bar area to the cantilever end reinforcing bar area and is connected to the plurality of stirrups located in the under-groove reinforcing bar area and the cantilever end reinforcing bar area.

[0009] According to some embodiments of the present invention, the drainage trough is located near the cantilever end.

[0010] According to some embodiments of the present invention, the spacing between adjacent stirrups in the groove side reinforcement area, the groove bottom reinforcement area, and the cantilever end reinforcement area is smaller than the spacing between adjacent stirrups in the main reinforcement area.

[0011] According to some embodiments of the present invention, the anchorage section of the first reinforcing bar extends in the x direction to the groove side reinforcement area, and the anchorage section is connected to the plurality of stirrups located in the groove side reinforcement area, the groove bottom reinforcement area and the cantilever end reinforcement area.

[0012] According to some embodiments of the present invention, the first reinforcing bar further includes a bent section extending along the z-direction. The bent section is located in the cantilever end reinforcement area, and one end is connected to the end of the anchoring section near the cantilever end, while the other end extends to the vicinity of the first main reinforcement bar.

[0013] According to some embodiments of the present invention, the opening of the drainage trough is inclined inward toward the bottom of the trough.

[0014] In addition, this utility model also provides a beam-column connection structure, including a structural column, an edge beam, and a cantilever beam as described in any of the above, wherein the fixed end of the cantilever beam is connected to the structural column, and the cantilever end is connected to the edge beam.

[0015] This utility model has at least the following beneficial effects:

[0016] In this invention, the drainage groove is opened on the beam body of the cantilever beam to increase the depth of the existing drainage ditch, thereby improving drainage efficiency. The foundation structural strength of the beam body is ensured by setting the first main reinforcement bar extending from the main reinforcement area to the cantilever section reinforcement area at the lower part of the beam body. Since the beam body cross-section changes abruptly after the drainage groove is opened, stress concentration is likely, making it a weak point and reducing structural strength. In this invention, the first reinforcing bar is embedded from the cantilever end of the beam body, with its anchorage section located below the drainage groove and extending from the cantilever end reinforcement area to the groove-below reinforcement area, improving the bending resistance at the drainage groove. Simultaneously, the anchorage section and the first main reinforcement bar are connected by multiple stirrups spaced apart in the x-direction, making the reinforcement bars located in the groove-below reinforcement area and the cantilever end reinforcement area form a whole, further improving the bending and torsional resistance at the drainage groove. Attached Figure Description

[0017] 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 these drawings without creative effort.

[0018] Figure 1 A structural schematic diagram of a beam-column connection structure provided for an embodiment of this utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the cantilever beam structure.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100-Cantilever beam; 1-Beam body; 11-Fixed end; 12-Cantilever end; 13-Drainage channel; 14-Main reinforcement zone; 15-Side reinforcement zone; 16-Under-channel reinforcement zone; 17-Cantilever section reinforcement zone; 2-Reinforcement assembly; 21-First main reinforcement; 22-First reinforcing bar; 221-Anchorage section; 222-Bent section; 23-Stirrup; 24-Second main reinforcement; 25-Second reinforcing bar; 251-First connecting section; 252-Second connecting section; 1000-Beam-column connection structure; 200-Structural column; 300-Edge beam. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0024] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are 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 with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] This utility model provides a cantilever beam and beam-column connection structure. Figures 1 to 2 This invention provides a specific embodiment of a cantilever beam and beam-column connection structure.

[0026] like Figure 1 and Figure 2As shown, this utility model embodiment provides a cantilever beam 100, including a beam body 1 and a steel reinforcement assembly 2 disposed within the beam body 1. The beam body 1 has a fixed end 11 and a cantilever end 12 disposed opposite to each other in the x-direction. A drainage groove 13 extending in the y-direction is provided on the beam body 1. The beam body 1 is provided with a main steel reinforcement area 14, a groove side steel reinforcement area 15, a groove bottom steel reinforcement area 16, and a cantilever end steel reinforcement area 17 in sequence from the fixed end 11 to the cantilever end 12. The steel reinforcement assembly 2 includes a first main bar 21, a first reinforcing bar 22, and a plurality of stirrups 23 spaced apart in the x-direction. Each stirrup 23 extends in the z-direction. The first main bar 21 is located at the lower part of the beam body 1 and extends from the main steel reinforcement area 14 to the cantilever end steel reinforcement area 17. The first reinforcing bar 22 includes an anchorage section 221 extending from the cantilever end steel reinforcement area 17 to the groove bottom steel reinforcement area 16. The anchorage section 221 and the first main bar 21 are connected by the plurality of stirrups 23.

[0027] In this invention, the drainage groove 13 is opened on the beam body 1 of the cantilever beam 100 to increase the depth of the existing drainage ditch, thereby improving drainage efficiency. The first main reinforcement 21, extending from the main reinforcement zone 14 to the cantilever section reinforcement zone 17, is provided at the lower part of the beam body 1 to ensure the foundation structural strength of the beam body 1. Since the drainage groove 13 creates a sudden change in the cross-section of the beam body 1 at the drainage groove 13, stress concentration is easily achieved, making it a weak point and thus reducing structural strength. This invention addresses this by opening the drainage groove 13 on the beam body 1. The first reinforcing bar 22 is embedded in the cantilever end 12 of body 1. The anchorage section 221 of the first reinforcing bar 22 is located below the drainage channel 13 and extends from the cantilever end reinforcement area 17 to the channel bottom reinforcement area 16, which improves the bending resistance of the drainage channel 13. At the same time, the anchorage section 221 and the first main bar 21 are connected by multiple stirrups 23 spaced apart in the x direction, so that the bars located in the channel bottom reinforcement area 16 and the cantilever end reinforcement area 17 form a whole, which further improves the bending resistance and torsional resistance of the drainage channel 13.

[0028] To improve the overall structural strength of the cantilever beam 100, in some embodiments, such as Figure 2As shown, the reinforcing steel assembly 2 also includes a second main reinforcement bar 24, which is located at the upper part of the beam body 1 and extends from the main reinforcement area 14 to the channel side reinforcement area 15. The first main reinforcement bar 21 and the second main reinforcement bar 24 are connected by multiple stirrups 23. By setting the second main reinforcement bar 24 extending from the main reinforcement area 14 to the channel side reinforcement area 15, the structural strength of the upper part of the beam body is improved. At the same time, by connecting the first main reinforcement bar 21 and the second main reinforcement bar 24 by multiple stirrups 23, the reinforcement bars on the side of the drainage channel 13 facing away from the cantilever end 12 form a whole, thereby improving the bending and torsional resistance of the cantilever beam 100.

[0029] To further improve the structural strength of the drainage channel 13, in some embodiments, such as Figure 2 As shown, the reinforcing steel assembly 2 further includes a second reinforcing bar 25, which is connected to the end of the second main reinforcing bar 24 near the drainage channel 13. The second reinforcing bar 25 is also connected to the plurality of stirrups 23 located in the lower reinforcing bar area 16 and the cantilever end reinforcing bar area 17. By setting the second reinforcing bar 25, the second main reinforcing bar 24 and each of the stirrups 23 located in the lower reinforcing bar area 16 and the cantilever end reinforcing bar area 17 are connected, making the second main reinforcing bar 24 and each of the stirrups 23 a whole, thereby significantly improving the structural strength of the drainage channel 13.

[0030] In some embodiments, such as Figure 2 As shown, the second reinforcing bar 25 includes a first connecting segment 251 and a second connecting segment 252. One end of the first connecting segment 251 is connected to the second main reinforcing bar 24, and the other end is connected to the second connecting segment 252. The second connecting segment 252 extends from the under-groove reinforcing bar area 16 to the cantilever end reinforcing bar area 17 and connects to the multiple stirrups 23 located in the under-groove reinforcing bar area 16 and the cantilever end reinforcing bar area 17. By connecting the first connecting segment 251 to the second main reinforcing bar 24 and the second connecting segment 252 to each of the stirrups 23, the second main reinforcing bar 24 and each of the stirrups 23 become a whole, thereby improving the structural strength of the drainage trough 13. Specifically, the second main reinforcing bar 24, the first connecting segment 251, and the second connecting segment 252 are the same reinforcing bar, making the connection of each reinforcing bar more secure, thereby improving the structural strength.

[0031] In some embodiments, such as Figure 2As shown, the first connecting segment 251 extends along the z-direction to the vicinity of the first main reinforcement 21, and the second connecting segment 252 is located at the lower part of the beam body 1 and extends along the x-direction to the cantilever end 12. This configuration allows the first connecting segment 251 to connect the second main reinforcement 24 and the second connecting segment 252, improving the bending and torsional resistance of the beam body 1 near the drainage channel 13. Simultaneously, the second connecting segment 252, positioned close to the first main reinforcement 21 and extending to the cantilever end 12, enhances the structural strength of the lower part of the beam body 1.

[0032] Since the force on the beam body 1 is smaller closer to the cantilever end 12, in some embodiments, such as... Figure 2 As shown, the drainage channel 13 is positioned close to the cantilever end 12. This arrangement reduces the force on the beam body 1 at the drainage channel 13, thus preventing bending and breakage.

[0033] To improve the bending resistance of the beam body 1 near the drainage channel 13, in some embodiments, such as Figure 2 As shown, the spacing between adjacent stirrups 23 in the side reinforcement zone 15, the bottom reinforcement zone 16, and the cantilever end reinforcement zone 17 is smaller than the spacing between adjacent stirrups 23 in the main reinforcement zone 14. This arrangement increases the number of stirrups 23 near the drainage trough 13, thereby improving the bending and torsional resistance of the beam body 1 at the drainage trough 13.

[0034] Specifically, in actual construction, the spacing of adjacent stirrups 23 in the side reinforcement zone 15, the bottom reinforcement zone 16, and the cantilever end reinforcement zone 17 can be set to half the spacing of adjacent stirrups 23 in the main reinforcement zone 14.

[0035] In some embodiments, such as Figure 2 As shown, the anchorage section 221 of the first reinforcing bar 22 extends in the x-direction to the groove-side reinforcement zone 15. The anchorage section 221 connects to the multiple stirrups 23 located in the groove-side reinforcement zone 15, the groove-below reinforcement zone 16, and the cantilever end reinforcement zone 17. This arrangement connects all the stirrups 23 near the drainage trough 13 through the anchorage section 221 of the first reinforcing bar 22, forming a unified whole. When the drainage trough 13 is under stress, the stress can be transferred to the beam body 1 on the side of the drainage trough 13 facing away from the cantilever end 12, thereby improving the bending resistance of the drainage trough 13. Simultaneously, the anchorage section 221 and the first connecting section 251 are cross-anchored, improving the strength and safety of the groove-side reinforcement zone 15 at its cross-sectional changes.

[0036] Furthermore, in some embodiments, such as Figure 2As shown, the first reinforcing bar 22 also includes a bent section 222 extending along the z-direction. The bent section 222 is located in the cantilever end reinforcement zone 17, with one end connected to the end of the anchoring section 221 near the cantilever end 12, and the other end extending to the vicinity of the first main reinforcement bar 21. With this configuration, the bent section 222 serves as the closed reinforcement of the cantilever end 12 of the beam body 1, ensuring the stability of the outermost concrete.

[0037] To prevent impurities from accumulating in the corners of the drainage trough 13 during drainage, in some embodiments, such as Figure 2 As shown, the opening of the drainage trough 13 is inclined inward towards the bottom of the trough. This arrangement increases the angle between the wall and the bottom of the drainage trough 13, preventing impurities from accumulating at the angle and facilitating the cleaning of the bottom of the drainage trough 13.

[0038] In addition, this utility model also provides a beam-column connection structure 1000, including a structural column 200, an edge beam 300 and the cantilever beam 100, wherein the fixed end 11 of the cantilever beam 100 is connected to the structural column 200 and the cantilever end 12 is connected to the edge beam 300.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cantilever beam, characterized in that, The beam includes a beam body and a steel reinforcement assembly disposed within the beam body. The beam body has a fixed end and a cantilever end arranged opposite each other in the x-direction. A drainage channel extending in the y-direction is provided on the beam body. The beam body is provided with a main reinforcement area, a channel side reinforcement area, a channel bottom reinforcement area, and a cantilever end reinforcement area in sequence from the fixed end to the cantilever end. The steel reinforcement assembly includes a first main bar, a first reinforcing bar, and multiple stirrups spaced apart in the x-direction. Each stirrup extends in the z-direction. The first main bar is located at the lower part of the beam body and extends from the main reinforcement area to the cantilever end reinforcement area. The first reinforcing bar includes an anchorage section extending from the cantilever end reinforcement area to the channel bottom reinforcement area. The anchorage section and the first main bar are connected by the multiple stirrups.

2. The cantilever beam as described in claim 1, characterized in that, The steel reinforcement assembly also includes a second main reinforcement bar, which is located at the upper part of the beam body and extends from the main reinforcement area to the groove side reinforcement area. The first main reinforcement bar and the second main reinforcement bar are connected by multiple stirrups.

3. The cantilever beam as described in claim 2, characterized in that, The steel reinforcement assembly also includes a second reinforcing bar, which is connected to the end of the second main reinforcement bar near the drainage channel, and the second reinforcing bar is connected to the plurality of stirrups located in the reinforcement area below the channel and the reinforcement area at the cantilever end.

4. The cantilever beam as described in claim 3, characterized in that, The second reinforcing bar includes a first connecting segment and a second connecting segment. One end of the first connecting segment is connected to the second main reinforcing bar, and the other end is connected to the second connecting segment. The second connecting segment extends from the under-groove reinforcing bar area to the cantilever end reinforcing bar area and is connected to the plurality of stirrups located in the under-groove reinforcing bar area and the cantilever end reinforcing bar area.

5. The cantilever beam as described in claim 2, characterized in that, The drainage channel is located near the cantilever end.

6. The cantilever beam as described in claim 5, characterized in that, The spacing between adjacent stirrups in the side reinforcement zone, the bottom reinforcement zone, and the cantilever end reinforcement zone is less than the spacing between adjacent stirrups in the main reinforcement zone.

7. The cantilever beam as described in claim 2, characterized in that, The anchorage section of the first reinforcing bar extends in the x-direction to the groove-side reinforcement area, and the anchorage section is connected to the plurality of stirrups located in the groove-side reinforcement area, the groove-below reinforcement area and the cantilever end reinforcement area.

8. The cantilever beam as described in claim 1, characterized in that, The first reinforcing bar also includes a bent section extending along the z-direction. The bent section is located in the cantilever end reinforcement area, with one end connected to the end of the anchoring section near the cantilever end, and the other end extending to the vicinity of the first main reinforcing bar.

9. The cantilever beam as described in claim 1, characterized in that, The opening of the drainage trough is inclined inward toward the bottom of the trough.

10. A beam-column connection structure, characterized in that, It includes structural columns, edge beams, and cantilever beams as described in any one of claims 1 to 9, wherein the fixed end of the cantilever beam is connected to the structural column, and the cantilever end is connected to the edge beam.

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