Composite connecting beam column structure
By adopting a composite anchoring method of anchor longitudinal ribs and non-anchor longitudinal ribs in the beam and column node areas, combining reinforcement ribs and steel components, the brittleness failure problem in the beam and column node areas is solved, the quality and strength of concrete are improved, and the impact-shearing and local pressure capabilities of the node areas are enhanced.
Patent Information
- Application Number
- CN202422053335.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-08-23
AI Technical Summary
In the prior art, the anchor plate reinforcement bars in the beam and column node area are pulled out, resulting in brittle damage to the node area and affecting structural safety.
The anchoring method is adopted in two ways: the anchor longitudinal bar of the beam and the non-anchor longitudinal bar are combined with the reinforcement rib and steel components to form a composite anchor to avoid too many steel bars in the node area and enhance the ductility and bearing capacity of the node area.
It effectively avoids brittle damage in the node area, improves the quality and strength of the concrete, enhances the impact shearing and local pressure capabilities of the node area, and reduces the concentration of anchoring stress.
Smart Images
Figure CN223226801U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of structural engineering, and particularly relates to a composite connecting beam-column structure. Background Art
[0002] When connecting beams to columns, the longitudinal reinforcement is typically anchored directly into the reinforced concrete column. However, this approach often results in excessive reinforcement at the beam-column joint and narrow spacing, making it difficult to ensure the quality and strength of the concrete pour. To address this issue, some projects use anchor plates within the reinforced concrete column. This approach reduces the anchorage length of the longitudinal reinforcement within the column, but in practice, this has led to mass pullout of the reinforcement, resulting in brittle failure in the joint area and seriously compromising structural safety. Utility Model Content
[0003] The purpose of the utility model is to provide a composite connection beam-column structure, which aims to solve the problem of group pullout of anchor plate reinforcement bars in beam-column node areas.
[0004] In order to achieve the above-mentioned purpose, the present utility model adopts the following technical solutions.
[0005] A composite connected beam-column structure includes a reinforced concrete beam and a reinforced concrete column, wherein the reinforced concrete beam is connected to the reinforced concrete column; the reinforced concrete beam includes beam concrete, beam longitudinal reinforcement, beam stirrups and anchors; the beam longitudinal reinforcement includes beam anchor longitudinal reinforcement and beam non-anchor longitudinal reinforcement; the reinforced concrete column includes column concrete, column longitudinal reinforcement and column stirrups; the beam anchor longitudinal reinforcement is inserted into the gap between the column longitudinal reinforcement and the column stirrups; the beam anchor longitudinal reinforcement and the anchor are fixedly connected.
[0006] Preferably, the reinforced concrete beam is located on both sides of the reinforced concrete column and is arranged accordingly; the non-anchor longitudinal reinforcement of the beam passes through the reinforced concrete column; the anchor is an anchor plate, steel bar, steel section or steel plate; the anchor is located at the end of the anchor longitudinal reinforcement.
[0007] Preferably, the reinforced concrete beam is located on one side of the reinforced concrete column; the non-anchor longitudinal reinforcement of the beam extends into the reinforced concrete column; and the anchor is located at the end of the anchor longitudinal reinforcement.
[0008] Preferably, the length of the anchor longitudinal reinforcement inserted into the reinforced concrete column is not less than 5 times the diameter of the reinforcement.
[0009] Preferably, there are reinforcing bars between the anchoring pieces and the column longitudinal bars.
[0010] Preferably, the lengths of the anchor longitudinal bars are different, and reinforcing bars are arranged between each batch of anchor longitudinal bars of the same length and the column longitudinal bars.
[0011] Preferably, the non-anchor longitudinal reinforcement and the anchor longitudinal reinforcement are arranged at intervals from each other.
[0012] Preferably, the longitudinal reinforcement at the corners of the reinforced concrete beam is a non-anchor longitudinal reinforcement.
[0013] Preferably, there are steel components in the reinforced concrete beams and / or reinforced concrete columns.
[0014] A composite connecting beam-column structure is provided, wherein a reinforced concrete beam, a reinforced concrete column and a floor slab are connected into a structural body via the composite connecting beam-column structure.
[0015] A composite connecting beam-column structure, the specific construction steps are as follows:
[0016] Step 1: Prepare beam longitudinal reinforcement and beam stirrups, column longitudinal reinforcement and column stirrups, beam concrete, column concrete, and anchors; process beam anchor longitudinal reinforcement, beam non-anchor longitudinal reinforcement and beam stirrups, column longitudinal reinforcement and column stirrups to the predetermined length and shape; securely connect the beam anchor longitudinal reinforcement to the anchors;
[0017] Step 2: Tie column longitudinal reinforcement and column stirrups;
[0018] Step 3: Support column formwork;
[0019] Step 4: Pour column concrete into the column formwork according to design requirements and cure the column concrete to the predetermined strength;
[0020] Step 5: Support the beam formwork;
[0021] Step 6: Tie the beam anchor longitudinal reinforcement, beam non-anchor longitudinal reinforcement and beam stirrups to form a beam reinforcement cage; insert the beam anchor longitudinal reinforcement and beam non-anchor longitudinal reinforcement into the gap between the column longitudinal reinforcement and column stirrups;
[0022] Step 7: Pour concrete at the beam-column joints according to design requirements and cure to the predetermined strength.
[0023] Compared with the prior art, the present invention has the following characteristics and beneficial effects.
[0024] 1. The utility model adopts two anchoring methods of beam anchor longitudinal reinforcement and non-anchor longitudinal reinforcement, which work together to avoid brittle failure in the node area, reduce the steel bars in the node area, increase the spacing between node steel bars, and improve the quality and strength of concrete.
[0025] 2. In the present invention, reinforcing bars are provided to restrain the deformation of concrete in the node area, increase the ductility of the node area, and prevent or reduce shear failure and local pressure failure.
[0026] 3. The longitudinal reinforcement of the anchor of the utility model is set at different lengths to avoid or reduce the concentration of anchoring stress.
[0027] 4. The utility model provides a steel component to further reduce the group anchoring of the anchor plates and improve the bearing capacity and ductility of the nodes. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] The present invention will be further described in detail below with reference to the accompanying drawings.
[0029] Figure 1 A top view of the connection between reinforced concrete columns and reinforced concrete beams Figure 1 .
[0030] Figure 2 Elevation diagram of the connection between reinforced concrete columns and reinforced concrete beams Figure 1 .
[0031] Figure 3 A top view of the connection between reinforced concrete columns and reinforced concrete beams Figure 2 .
[0032] Figure 4 Elevation diagram of the connection between reinforced concrete columns and reinforced concrete beams Figure 2 .
[0033] Figure 5 A top view of the connection between reinforced concrete columns and reinforced concrete beams Figure 3 .
[0034] Figure 6 Elevation diagram of the connection between reinforced concrete columns and reinforced concrete beams Figure 3 .
[0035] Figure 7 A top view of the connection between reinforced concrete columns and reinforced concrete beams Figure 4 .
[0036] Figure numbers: A-reinforced concrete beam, B-reinforced concrete column, 1-beam concrete, 2-beam longitudinal reinforcement, 2.1-beam anchor longitudinal reinforcement, 2.2-beam non-anchor longitudinal reinforcement, 3-beam stirrups, 4-anchor, 5-column concrete, 6-column longitudinal reinforcement, 7-column stirrups, 8-strengthening bars, 9-steel component. DETAILED DESCRIPTION
[0037] In order to better understand the purpose, technical solutions and functions of the present invention, the present invention is described in further detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.
[0038] In the description of the present invention, it should be understood that the terms "comprises / comprising", "consisting of" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product, apparatus, process or method comprising a series of elements includes not only those elements, but also, when necessary, other elements not explicitly listed, or elements inherent to such product, apparatus, process or method. In the absence of further limitations, elements defined by the phrases "comprises / comprising..." or "consisting of" do not exclude the presence of other identical elements in the product, apparatus, process or method comprising the elements.
[0039] 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.
[0040] 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.
[0041] The following describes the implementation of the present invention in detail with reference to the accompanying drawings using preferred embodiments.
[0042] like Figure 1 and Figure 2 As shown, a composite connected beam-column structure includes a reinforced concrete beam A and a reinforced concrete column B. The reinforced concrete beam A is connected to the reinforced concrete column B. The reinforced concrete beam A includes beam concrete 1, beam longitudinal reinforcement 2, beam stirrups 3 and anchors 4. The beam longitudinal reinforcement 2 includes beam anchor longitudinal reinforcement 2.1 and beam non-anchor longitudinal reinforcement 2.2. The reinforced concrete column B includes column concrete 5, column longitudinal reinforcement 6 and column stirrups 7. The beam anchor longitudinal reinforcement 2.1 is inserted into the gap between the column longitudinal reinforcement 6 and the column stirrups 7. The beam anchor longitudinal reinforcement 2.1 and the anchor 4 are fixedly connected.
[0043] The beam anchor longitudinal reinforcement 2.1 is anchored into the reinforced concrete column, and the anchoring force is provided by the local pressure of the concrete near the reinforced concrete column anchor and the shear force distributed along the anchor longitudinal reinforcement. The beam non-anchor longitudinal reinforcement 2.2 is also anchored into the reinforced concrete column, and the anchoring force is provided by the shear force distributed along the non-anchor longitudinal reinforcement. The two form a composite anchoring force, avoiding or reducing the collective pull-out of the anchor reinforcement at the node and the occurrence of brittle failure.
[0044] In specific implementation, reinforced concrete beam A is positioned on either side of reinforced concrete column B. Non-anchor longitudinal beam bars 2.2 extend through column B, and anchors 4 are located at the ends of anchor longitudinal bars 2.1. Non-anchor longitudinal beam bars 2.2 extend through column B, acting alongside the anchor bars to resist bending and shear forces. Disconnecting the anchor longitudinal bars within the column reduces the number of steel bars in the column, improving the quality and strength of the concrete pour.
[0045] In practice, reinforced concrete beam A is positioned on one side of reinforced concrete column B. Non-anchor longitudinal bars 2.2 extend into column B, and anchor 4 is located at the end of anchor longitudinal bars 2.1. Function: Both the anchor and non-anchor longitudinal bars are anchored within the reinforced concrete column, sharing the load.
[0046] In specific implementations, the anchor 4 is constructed of anchor plates, rebar, steel sections, or steel plates. The thickness of the anchor plates or steel plates is no less than 0.35 times the plate thickness. The diameter of the short rebar is no less than 0.2 times the diameter of the beam anchor longitudinal bar, and the length is no less than 1.5 times the diameter of the beam anchor longitudinal bar. The longitudinal wall reinforcement 6 and transverse wall reinforcement 7 include wall body reinforcement and / or wall edge member reinforcement. Function: The anchor provides a certain degree of rigidity to effectively transmit the anchoring force.
[0047] During implementation, the longitudinal anchor bar 2.1 should be inserted into the reinforced concrete column B for a length not less than five times the diameter of the bar. This prevents the anchor bar from being inserted too short into the reinforced concrete column, potentially causing damage.
[0048] In practice, reinforcement bars 8 are installed between anchors 4 and column longitudinal bars 6. These bars are either steel mesh or vertically spaced steel bars. The spacing between the mesh or the vertically spaced steel bars should be 25mm to 350mm. The diameter of the reinforcement bars should not be less than 8mm. Their purpose: to prevent localized concrete failure at the joint and improve the ductility of the joint.
[0049] In specific implementation, the lengths of the anchor longitudinal bars 2.1 are different, and reinforcing bars 8 are arranged between each batch of anchor longitudinal bars 2.1 of the same length and the column longitudinal bars 6. Function: Form multiple failure surfaces to improve the ductility of the node.
[0050] In specific implementation, the non-anchor longitudinal reinforcement 2.2 and the anchor longitudinal reinforcement 2.1 are arranged at intervals. Function: to further enable the two to bear forces in a coordinated manner and reduce local pressure damage.
[0051] In practice, the non-anchor longitudinal reinforcement 2.2 is arranged vertically corresponding to the anchor longitudinal reinforcement 2.1. This increases the spacing between the reinforcement bars and facilitates concrete pouring.
[0052] In practice, the longitudinal reinforcement 2 at the corner of reinforced concrete beam A is non-anchor longitudinal reinforcement 2.2. This serves to prevent localized pressure damage caused by the anchored reinforcement, as the concrete at the corner has poor restraint properties. This creates a longer force transmission path through the non-anchor longitudinal reinforcement, achieving a more effective anchoring effect.
[0053] In specific implementation, a steel member 9 is provided in the reinforced concrete beam A and / or the reinforced concrete column B. The steel member comprises a steel section or a welded steel member. This further improves the ductility of the joint, reduces the group effect of the anchors, and reduces the required anchoring force.
[0054] During specific implementation, reinforced concrete beams, reinforced concrete columns and floor slabs are connected into a structural body through a composite connecting beam-column structure.
[0055] A composite connecting beam-column structure, the specific construction steps are as follows:
[0056] Step 1: Prepare beam longitudinal reinforcement 2 and beam stirrups 3, column longitudinal reinforcement 6 and column stirrups 7, beam concrete 1, column concrete 5, and anchor 4; process beam anchor longitudinal reinforcement 2.1, beam non-anchor longitudinal reinforcement 2.2, beam stirrups 3, column longitudinal reinforcement 6, and column stirrups 7 to the desired length and shape; securely connect beam anchor longitudinal reinforcement 2.1 to anchor 4;
[0057] Step 2: Tie column longitudinal reinforcement 6 and column stirrups 7;
[0058] Step 3: Support column formwork;
[0059] Step 4: Pour column concrete 5 into the column formwork according to design requirements and cure the column concrete to the predetermined strength;
[0060] Step 5: Support the beam formwork;
[0061] Step 6: Tie the beam anchor longitudinal reinforcement 2.1, the beam non-anchor longitudinal reinforcement 2.2 and the beam stirrups 3 to form a beam reinforcement cage; insert the beam anchor longitudinal reinforcement 2.1 and the beam non-anchor longitudinal reinforcement 2.2 into the gap between the column longitudinal reinforcement 6 and the column stirrups 7;
[0062] Step 7: Pour concrete at the beam-column joints according to design requirements and cure to the predetermined strength.
[0063] During specific implementation, beam concrete can be poured as needed and cured to a predetermined strength.
[0064] Specific implementation methods, but the protection scope of the present invention is not limited to this. Any modifications, equivalent replacements and improvements made by any technician familiar with this technical field within the technical scope disclosed by this utility model should be covered by the protection scope of this utility model.
Claims
1. A composite beam-column structure, characterized in that: The invention comprises a reinforced concrete beam (A) and a reinforced concrete column (B), wherein the reinforced concrete beam (A) is connected to the reinforced concrete column (B); the reinforced concrete beam (A) comprises beam concrete (1), beam longitudinal reinforcement (2), beam stirrups (3) and an anchor (4); the beam longitudinal reinforcement (2) comprises beam anchor longitudinal reinforcement (2.1) and beam non-anchor longitudinal reinforcement (2.2); the reinforced concrete column (B) comprises column concrete (5), column longitudinal reinforcement (6) and column stirrups (7); the beam anchor longitudinal reinforcement (2.1) is inserted into the gap between the column longitudinal reinforcement (6) and the column stirrups (7); the beam anchor longitudinal reinforcement (2.1) and the anchor (4) are fixedly connected.
2. The composite connecting beam-column structure according to claim 1, characterized in that: The reinforced concrete beam (A) is located on both sides of the reinforced concrete column (B) and is arranged correspondingly; the beam non-anchor longitudinal reinforcement (2.2) passes through the reinforced concrete column (B); and the anchor (4) is located at the end of the anchor longitudinal reinforcement (2.1).
3. The composite connecting beam-column structure according to claim 1, characterized in that: The reinforced concrete beam (A) is located on one side of the reinforced concrete column (B); the non-anchor longitudinal reinforcement (2.2) of the beam extends into the reinforced concrete column (B); and the anchor (4) is located at the end of the anchor longitudinal reinforcement (2.1).
4. The composite connecting beam-column structure according to claim 1, characterized in that: The length of the anchor longitudinal reinforcement (2.1) inserted into the reinforced concrete column (B) is not less than 5 times the diameter of the reinforcement.
5. The composite connecting beam-column structure according to claim 1, characterized in that: A reinforcing rib (8) is provided between the anchoring piece (4) and the column longitudinal rib (6).
6. The composite connecting beam-column structure according to claim 1, characterized in that: The lengths of the anchor longitudinal bars (2.1) are different, and reinforcing bars (8) are arranged between each batch of anchor longitudinal bars (2.1) of the same length and the column longitudinal bars (6).
7. The composite connecting beam-column structure according to claim 1, characterized in that: The non-anchor longitudinal reinforcement (2.2) and the anchor longitudinal reinforcement (2.1) are arranged at intervals from each other.
8. The composite connecting beam-column structure according to claim 1, characterized in that: The longitudinal reinforcement (2) at the corner of the reinforced concrete beam (A) is a non-anchor longitudinal reinforcement (2.2).
9. The composite connecting beam-column structure according to claim 1, characterized in that: There are steel members (9) inside the reinforced concrete beam (A) and / or inside the reinforced concrete column (B).
10. A composite beam-column structure, characterized in that: The reinforced concrete beams, reinforced concrete columns and floor slabs are connected into a structural body through the composite connecting beam-column structure according to claim 1.