Reinforced beam wall joint and structure
By using the mixed anchoring method of beam anchor longitudinal bars and non-anchor longitudinal bars in the beam wall nodes, the brittle damage caused by the pulling out of the anchor plate steel bars is solved, and the concrete quality and seismic resistance of the node area are improved.
Patent Information
- Application Number
- CN202422065976.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-26
AI Technical Summary
In the prior art, the removal of the anchor plate steel bars of the beam wall connection nodes leads to brittle damage, which poses a seismic safety hazard.
The hybrid anchoring method of beam anchor longitudinal bars and beam non-anchor longitudinal bars is adopted, combining reinforcement and steel bone structure to avoid centralized anchoring and enhance the concrete pouring quality and strength of the node area.
Effectively prevent or reduce brittle damage in the node area, improve the quality and strength of concrete pouring, increase the ductility of nodes, and improve seismic resistance.
Smart Images
Figure CN223176911U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of structural engineering, and particularly relates to a reinforced beam-wall joint and structure. Background Art
[0002] In order to achieve seismic safety, it is usually required that "strong joints and weak components". The safety and reliability of the beam-wall connection joints are of great significance. Usually, the longitudinal beam reinforcement is directly anchored into the wall, but there are problems that the reinforcement is dense in the joint area and it is difficult to ensure the casting quality and strength of the concrete. In some projects, an anchorage plate is used for anchoring. The anchorage plate and the longitudinal beam reinforcement are integrally connected by threads and anchored in the wall. This method can shorten the reinforcement anchorage length, but in practice, the group of reinforcement bars of the anchorage plate is pulled out, causing brittle failure and posing a major hidden danger to seismic safety. Content of the Utility Model
[0003] The purpose of the utility model is to provide a reinforced beam-wall joint and structure, and solve the problem of brittle failure caused by the group pulling out of the reinforcement bars of the anchorage plate in the joint area.
[0004] To achieve the above purpose, the utility model adopts the following technical solutions.
[0005] A reinforced beam-wall joint includes a reinforced concrete beam and a reinforced concrete wall, and the reinforced concrete beam is connected to the reinforced concrete wall; the reinforced concrete beam includes beam concrete, longitudinal beam reinforcement, transverse beam reinforcement and an anchor; the longitudinal beam reinforcement includes longitudinal reinforcement of beam anchor and longitudinal reinforcement of beam non-anchor; the reinforced concrete wall includes wall concrete, longitudinal wall reinforcement and transverse wall reinforcement; the longitudinal beam reinforcement is inserted into the gap between the longitudinal wall reinforcement and the transverse wall reinforcement.
[0006] Preferably, the longitudinal reinforcement of beam anchor is fixedly connected to the anchor; the anchor is an anchorage plate, reinforcement, section steel or steel plate; the anchor is located at the end of the longitudinal reinforcement of beam anchor.
[0007] Preferably, the ends of the longitudinal reinforcement of beam anchor and the longitudinal reinforcement of beam non-anchor are not in the same plane.
[0008] Preferably, there is a reinforcing member between the anchor and the wall edge.
[0009] Preferably, the lengths of the longitudinal reinforcement of beam anchor are different, and reinforcing members are respectively arranged between the longitudinal reinforcement of beam anchor with the same length in each batch and the wall edge.
[0010] Preferably, the longitudinal reinforcement of beam non-anchor and the longitudinal reinforcement of beam anchor are arranged at intervals of each other.
[0011] Preferably, the longitudinal beam reinforcement at the corner of the reinforced concrete beam is the longitudinal reinforcement of beam non-anchor.
[0012] Preferably, there is steel skeleton in the reinforced concrete beam and / or in the reinforced concrete wall.
[0013] A reinforced beam-wall structure, in which a reinforced concrete beam, a reinforced concrete wall and a floor slab are connected into a structural body through the reinforced beam-wall joint.
[0014] A reinforced beam-wall joint, and the specific construction steps are as follows:
[0015] Step 1: Prepare longitudinal beam steel bars, transverse beam steel bars, longitudinal wall steel bars, transverse wall steel bars, beam concrete, wall concrete, and anchor fittings; process the longitudinal anchor bars, non-anchor longitudinal bars, transverse beam steel bars, longitudinal wall steel bars, and transverse wall steel bars to a predetermined length and shape; fixedly connect the longitudinal beam anchor bars with the anchor fittings;
[0016] Step 2: Bind the longitudinal wall steel bars and the transverse wall steel bars;
[0017] Step 3: Set up the wall formwork;
[0018] Step 4: Pour the wall concrete into the wall formwork according to the design requirements, and cure the wall concrete to a predetermined strength;
[0019] Step 5: Set up the beam formwork;
[0020] Step 6: Bind the longitudinal beam anchor bars, non-anchor longitudinal beam steel bars and transverse beam steel bars into a beam steel cage; insert the longitudinal beam anchor bars and the longitudinal beam anchor bars into the gaps between the longitudinal wall steel bars and the transverse wall steel bars;
[0021] Step 7: Pour the concrete of the beam-wall joint according to the design requirements, and cure it to a predetermined strength.
[0022] Compared with the prior art, the present utility model has the following characteristics and beneficial effects.
[0023] 1. In the present utility model, a mixed anchoring method of longitudinal beam anchor bars and non-anchor longitudinal beam steel bars is adopted to avoid or reduce concentrated anchoring, thereby avoiding brittle failure in the joint area; moreover, the steel bars in the joint area can be reduced, and the pouring quality and strength of the concrete can be improved.
[0024] 2. In the present utility model, strengthening members are arranged at the ends of the longitudinal beam anchor bars and the edge parts of the wall to restrict the deformation of the concrete in the joint area, increase the ductility, and prevent or reduce punching failure and local bearing failure.
[0025] 3. In the present utility model, the longitudinal beam anchor bars are arranged with different lengths to avoid or reduce the concentration of anchoring stress.
[0026] 4. In the present utility model, steel columns are arranged to further reduce the group anchoring of the anchor plates and improve the bearing capacity and ductility of the joint. Description of the Drawings
[0027] The following further describes the present utility model in detail with reference to the drawings.
[0028] Figure 1 Top view schematic of the connection between a reinforced concrete wall and a reinforced concrete beam Figure 1 。
[0029] Figure 2 Elevation view schematic of the connection between a reinforced concrete wall and a reinforced concrete beam Figure 1 。
[0030] Figure 3 Top view schematic of the connection between a reinforced concrete wall and a reinforced concrete beam Figure 2 。
[0031] Figure 4 Elevation view schematic of the connection between a reinforced concrete wall and a reinforced concrete beam Figure 2 。
[0032] Figure 5 Top view schematic of the connection between a reinforced concrete wall and a reinforced concrete beam Figure 3 。
[0033] Reference numerals: A - Reinforced concrete beam, B - Reinforced concrete wall, 1 - Beam concrete, 2 - Longitudinal beam reinforcement, 2.1 - Longitudinal reinforcement of beam anchor, 2.2 - Non - anchor longitudinal beam reinforcement, 3 - Transverse beam reinforcement, 4 - Anchor, 5 - Wall concrete, 6 - Longitudinal wall reinforcement, 7 - Transverse wall reinforcement, 8 - Reinforcement, 9 - Steel skeleton. Detailed implementation mode
[0034] In order to better understand the purpose, technical solution and functions of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings. Here, the schematic embodiments of the present utility model and their descriptions are used to explain the present utility model, but not to limit the present utility model.
[0035] In the description of the present utility model, it should be understood that the terms "include / contain", "consist of...", or any other variant thereof are intended to cover non - exclusive inclusion, so that a product, device, process or method including a series of elements not only includes those elements, but also includes other elements that are not explicitly listed when necessary, or also includes elements inherent to such product, device, process or method. Without further limitation, the elements defined by the statement "include / contain..." or "consist of..." do not exclude the existence of additional identical elements in the product, device, process or method including the said elements.
[0036] In the present invention, unless otherwise clearly specified and limited, the term "fixed connection" should be understood in a broad sense, for example, it can be a sleeve connection, a lap joint, a welding connection, a bolt connection, or a combination of the above connections; the terms "installation", "connection", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components; the term "through-length steel bar" means that the steel bar is continuous without disconnection, or the steel bar is disconnected but the disconnected steel bars are fixedly connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0037] It should also be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device, component or structure referred to must have a specific direction, be constructed or operate in a specific direction, and should not be understood as a limitation on the present invention.
[0038] The following describes the implementation of the present invention in detail with reference to the accompanying drawings using preferred embodiments.
[0039] like Figure 1 and Figure 2 As shown, a reinforced beam-wall joint includes a reinforced concrete beam A and a reinforced concrete wall B. Reinforced concrete beam A is connected to reinforced concrete wall B. Reinforced concrete beam A comprises beam concrete 1, beam longitudinal reinforcement 2, beam transverse reinforcement 3, and anchors 4. Beam longitudinal reinforcement 2 comprises beam anchor longitudinal reinforcement 2.1 and beam non-anchor longitudinal reinforcement 2.2. Reinforced concrete wall B comprises wall concrete 5, wall longitudinal reinforcement 6, and wall transverse reinforcement 7. Beam longitudinal reinforcement 2 is inserted into the gap between wall longitudinal reinforcement 6 and wall transverse reinforcement 7. Beam anchor longitudinal reinforcement 2.1 is anchored into the shear wall, providing anchoring force through the local compression of the concrete near the shear wall anchor and the shear force distributed along the beam anchor longitudinal reinforcement. Beam non-anchor longitudinal reinforcement 2.2 is also anchored into the shear wall, providing anchoring force through the shear force distributed along the beam non-anchor longitudinal reinforcement. These two components form a composite anchoring force, preventing or reducing the collective pullout of the anchor reinforcement at the joint and the resulting brittle failure.
[0040] In specific implementation, the longitudinal bars 2.1 of the beam anchor are fixedly connected to the anchor 4, and the fixed connection method is threaded connection or welding. The anchor 4 is an anchorage plate, steel bar, section steel or steel plate, and the anchor 4 is located at the end of the longitudinal bars 2.1 of the beam anchor. The thickness of the anchorage plate or steel plate is not less than 0.35 times the plate thickness, the diameter of the short steel bar is not less than 0.2 times the diameter of the longitudinal bars of the beam anchor, and the length is not less than 1.5 times the diameter of the longitudinal bars of the beam anchor. The longitudinal wall bars 6 and the transverse wall bars 7 include the wall body bars and / or the wall edge member bars. Function: The anchor has a certain stiffness and can effectively transfer the anchoring force.
[0041] In specific implementation, the insertion length of the longitudinal bars 2.1 of the beam anchor into the reinforced concrete wall B is not less than 5 times the bar diameter, the insertion length of the non-anchor longitudinal bars 2.2 of the beam into the reinforced concrete wall B is not less than 10 times the bar diameter, and the total insertion length of the non-anchor bars of the beam into the concrete shear wall is not less than the bar anchorage length. Function: It can provide the anchoring force more effectively.
[0042] In specific implementation, the ends of the longitudinal bars 2.1 of the beam anchor and the ends of the non-anchor longitudinal bars 2.2 of the beam are not in the same plane. Function: The failure surfaces of the joint concrete are not on the same plane.
[0043] In specific implementation, as Figure 3 and Figure 4 shown, there is a reinforcement member 8 between the anchor and the wall edge. The reinforcement member is a steel bar mesh or steel bars arranged vertically at intervals, the spacing of the steel bar mesh or the spacing of the vertically arranged steel bars at intervals is 20 mm to 400 mm, and the diameter of the steel bars is not less than 6 mm. Function: Prevent local compression failure of the joint concrete and improve the ductility of the joint.
[0044] In specific implementation, as Figure 5 shown, the lengths of the longitudinal bars 2.1 of the beam anchor are different, and the reinforcement members 8 are respectively arranged between the longitudinal bars 2.1 of the beam anchor with the same length in each batch and the wall edge. Function: Form multiple failure surfaces and improve the ductility of the joint.
[0045] In specific implementation, the non-anchor longitudinal bars 2.2 of the beam and the longitudinal bars 2.1 of the beam anchor are arranged at intervals. Function: Further reduce local compression failure.
[0046] In specific implementation, the longitudinal beam bars 2 at the corners of the reinforced concrete beam A are the non-anchor longitudinal bars 2.2 of the beam. Function: The confinement performance of the concrete at the corners of the anchored bars is poor. Through the non-anchor longitudinal bars of the beam, a longer force transmission path is formed to achieve the anchoring effect and prevent local compression failure caused by the anchor bars.
[0047] In specific implementation, there is a steel skeleton 9 in the reinforced concrete beam A and / or in the reinforced concrete wall B. Function: Further improve the ductility of the joint, reduce the group effect of the anchors, and reduce the required anchoring force.
[0048] A reinforced beam-wall structure, in which a reinforced concrete beam, a reinforced concrete wall and a floor slab are connected into a structural body through a reinforced beam-wall joint. Function: To form a structurally reinforced system.
[0049] A reinforced beam-wall joint, and the specific construction steps are as follows:
[0050] Step 1: Prepare longitudinal beam reinforcement 2, transverse beam reinforcement 3, longitudinal wall reinforcement 6, transverse wall reinforcement 7, beam concrete 1, wall concrete 5, and anchor fittings 4; process the longitudinal anchor bar 2.1, non-anchor longitudinal bar 2.2, transverse beam reinforcement 3, longitudinal wall reinforcement 6, and transverse wall reinforcement 7 to the predetermined length and shape; fixedly connect the longitudinal beam anchor bar 2.1 with the anchor fitting 4;
[0051] Step 2: Bind the longitudinal wall reinforcement 6 and the transverse wall reinforcement 7;
[0052] Step 3: Set up the wall formwork;
[0053] Step 4: Pour the wall concrete 5 into the wall formwork according to the design requirements, and cure the wall concrete to the predetermined strength;
[0054] Step 5: Set up the beam formwork;
[0055] Step 6: Bind the longitudinal beam anchor bar 2.1, the non-anchor longitudinal beam bar 2.2, and the transverse beam reinforcement 3 into a beam steel cage; insert the longitudinal beam anchor bar 2.1 and the longitudinal beam anchor bar 2.2 into the gaps between the longitudinal wall reinforcement 6 and the transverse wall reinforcement 7;
[0056] Step 7: Pour the concrete of the beam-wall joint according to the design requirements, and cure it to the predetermined strength.
[0057] During specific implementation, the beam concrete can be poured as needed and cured to the predetermined strength.
[0058] Specific implementation manners, but the protection scope of the present utility model is not limited thereto. Any modifications, equivalent replacements, and improvements made by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model.
Claims
1. A reinforced beam-wall joint, characterized in that: It includes a reinforced concrete beam (A) and a reinforced concrete wall (B), and the reinforced concrete beam (A) is connected to the reinforced concrete wall (B); the reinforced concrete beam (A) includes beam concrete (1), longitudinal beam reinforcement (2), transverse beam reinforcement (3), and an anchor (4); the longitudinal beam reinforcement (2) includes longitudinal beam anchor reinforcement (2.1) and longitudinal beam non-anchor reinforcement (2.2); the reinforced concrete wall (B) includes wall concrete (5), longitudinal wall reinforcement (6), and transverse wall reinforcement (7); the longitudinal beam reinforcement (2) is inserted into the gap between the longitudinal wall reinforcement (6) and the transverse wall reinforcement (7).
2. The reinforced beam-wall joint according to claim 1, wherein: The longitudinal beam anchor reinforcement (2.1) and the anchor (4) are fixedly connected; the anchor (4) is an anchor plate, steel bar, section steel or steel plate; the anchor (4) is located at the end of the longitudinal beam anchor reinforcement (2.1).
3. The reinforced beam-wall joint according to claim 1, characterized in that: The ends of the longitudinal beam anchor reinforcement (2.1) and the longitudinal beam non-anchor reinforcement (2.2) are not in the same plane.
4. The reinforced beam-wall joint according to claim 1, wherein: There is a reinforcement member (8) between the anchor (4) and the wall edge.
5. The reinforced beam-wall joint according to claim 1, characterized in that: The lengths of the longitudinal beam anchor reinforcements (2.1) are different, and reinforcement members (8) are respectively arranged between the longitudinal beam anchor reinforcements (2.1) with the same length in each batch and the wall edge.
6. The reinforced beam-wall joint according to claim 1, wherein: The longitudinal beam non-anchor reinforcements (2.2) and the longitudinal beam anchor reinforcements (2.1) are arranged at intervals of each other.
7. The reinforced beam-wall joint according to claim 1, characterized in that: The longitudinal beam reinforcement (2) at the corner of the reinforced concrete beam (A) is the longitudinal beam non-anchor reinforcement (2.2).
8. The reinforced beam-wall joint according to claim 1, characterized in that: There is a steel skeleton (9) inside the reinforced concrete beam (A) and / or inside the reinforced concrete wall (B).
9. A reinforced beam-wall structure, characterized in that: The reinforced concrete beam, the reinforced concrete wall and the floor slab are connected into a structure through the reinforced beam-wall joint described in claim 1.