A structure of a continuous beam opening reinforcement

Abstract

The utility model relates to a kind of continuous beam opening reinforcing structure, it includes continuous beam main body and reinforcing assembly;Wherein, the hole is set in the continuous beam main body, the reinforcing assembly is the rectangular frame structure matched with the section of the continuous beam main body, the reinforcing assembly is set on the both sides of the hole position of the continuous beam main body and is fixedly connected with the continuous beam main body.The continuous beam opening reinforcing structure provided by the utility model is reinforced to the continuous beam main body by setting reinforcing assembly on the both sides of the hole position of the continuous beam main body, the reinforcing assembly of rectangular frame structure, effectively make up the section weakening caused by opening, restore the shear, bending capacity of continuous beam;Meanwhile, reinforcing assembly forms annular constraint to continuous beam main body, enhance the ductility of continuous beam, improve the anti-seismic performance of continuous beam.The structure of the continuous beam opening reinforcing structure is simple, construction is convenient, can shorten construction period, reduce construction cost.

Description

Technical Field

[0001] This utility model relates to the field of building structure engineering technology, and more specifically, to a reinforcement structure for openings in connecting beams. Background Technology

[0002] During building construction and renovation, it is often necessary to create openings in coupling beams to accommodate the passage of water, electricity, ventilation, and other pipelines. However, as a crucial lateral force-resisting component in shear wall structures, creating openings in coupling beams weakens their cross-sectional stiffness and load-bearing capacity, potentially leading to a decrease in their shear and bending resistance, and even affecting the seismic safety of the entire structure. Current technologies for reinforcing coupling beams after creating openings suffer from complex construction and unstable reinforcement effects, necessitating a simple, convenient, and effective reinforcement measure that can restore the mechanical properties of coupling beams. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a connecting beam opening reinforcement structure, which aims to solve the problems existing in the prior art.

[0004] According to this utility model, a reinforcement structure for openings in a connecting beam is provided, comprising a connecting beam body and reinforcement components; wherein... The main body of the connecting beam has holes, and the reinforcing component is a rectangular frame structure that matches the cross-section of the main body of the connecting beam. The reinforcing component is fitted on both sides of the holes on the main body of the connecting beam and is fixedly connected to the main body of the connecting beam. The reinforcement components include a U-shaped steel plate, an L-shaped steel plate, and a fastening assembly. The U-shaped steel plate includes a first side plate, a bottom plate, and a second side plate connected in sequence, with the first and second side plates respectively perpendicularly disposed at both ends of the bottom plate. The L-shaped steel plate includes a vertical plate and a horizontal plate connected perpendicularly to each other. The vertical plate of the L-shaped steel plate is fixedly connected to the second side plate of the U-shaped steel plate, and the first side plate of the U-shaped steel plate is connected to the horizontal plate of the L-shaped steel plate through the fastening assembly. Both the U-shaped steel plate and the L-shaped steel plate are fixedly connected to the main body of the connecting beam.

[0005] Preferably, the length of the first side of the U-shaped steel plate is greater than the length of the second side; the length of the vertical plate of the L-shaped steel plate is greater than the length of the horizontal plate.

[0006] Preferably, both the U-shaped steel plate and the L-shaped steel plate are made of flat steel of equal width by bending.

[0007] Preferably, the vertical plate of the L-shaped steel plate is fixedly connected to the second side plate of the U-shaped steel plate by welding.

[0008] Preferably, the fastening assembly includes a screw and a nut. The first end of the screw is fixedly connected to the end of the first side plate away from the bottom plate. The end of the horizontal plate away from the vertical plate has a fixing hole for the screw to pass through. The second end of the screw passes through the fixing hole on the horizontal plate and is screwed with the nut.

[0009] Preferably, the first end of the screw is fixedly connected to the end of the first side plate away from the base plate by welding.

[0010] Preferably, both the U-shaped steel plate and the L-shaped steel plate are fixedly connected to the main body of the connecting beam by anchor bolts.

[0011] Preferably, a connecting steel bar is provided in the hole, and the two ends of the connecting steel bar are fixedly connected to the cut ends of the steel bars in the main body of the connecting beam when the hole is opened by welding.

[0012] Preferably, a repair layer is provided on the inner wall of the hole of the main body of the connecting beam, and the repair layer is cast with high-strength grout.

[0013] Preferably, the inner wall of the hole in the main body of the connecting beam is coated with an interface agent layer, and the repair layer is disposed on the interface agent layer.

[0014] The coupling beam opening reinforcement structure provided by this utility model strengthens the coupling beam by setting reinforcement components on both sides of the opening location in the main body of the coupling beam. These rectangular frame reinforcement components effectively compensate for the cross-sectional weakening caused by the opening, restoring the shear and bending bearing capacity of the coupling beam. Simultaneously, the reinforcement components form a ring constraint on the main body of the coupling beam, enhancing its ductility and improving its seismic performance. This coupling beam opening reinforcement structure is simple in structure, convenient to construct, and can shorten the construction period and reduce construction costs. Attached Figure Description

[0015] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings.

[0016] Figure 1 A plan view of a single-layer connecting beam according to an embodiment of the present invention is shown.

[0017] Figure 2 for Figure 1 Cross-sectional view at point AA.

[0018] Figure 3 for Figure 2 Cross-sectional view at point BB.

[0019] Figure 4 A schematic diagram of the structure at the opening of the connecting beam reinforcement structure according to an embodiment of the present invention is shown.

[0020] In the diagram: 1. Main body of the connecting beam; 11. Hole; 12. Repair layer; 2. Reinforcing component; 21. U-shaped steel plate; 211. First side plate; 212. Bottom plate; 213. Second side plate; 22. L-shaped steel plate; 221. Vertical plate; 222. Horizontal plate; 23. Screw; 24. Nut; 3. Anchor bolt; 4. Connecting steel bar. Detailed Implementation

[0021] Various embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. In the various drawings, the same elements are indicated by the same or similar reference numerals. For clarity, the various parts in the drawings are not drawn to scale.

[0022] This utility model provides a reinforcement structure for openings in connecting beams. See [link / reference] Figures 1 to 3 The connecting beam reinforcement structure includes a connecting beam body 1 and a reinforcement component 2. The connecting beam body 1 has holes 11. The reinforcement component 2 is a rectangular frame structure that matches the cross-section of the connecting beam body 1. The reinforcement component 2 is fitted onto both sides of the holes 11 on the connecting beam body 1 and is fixedly connected to the connecting beam body 1. The reinforcement component 2 includes a U-shaped steel plate 21, an L-shaped steel plate 22, and fastening components. The U-shaped steel plate 21 includes a first side plate 211, a bottom plate 212, and a second side plate 213 connected in sequence. The first side plate 211 and the second side plate 213 are respectively vertically arranged at both ends of the base plate 212; the L-shaped steel plate 22 includes a vertical plate 221 and a horizontal plate 222 that are vertically connected to each other as a whole; the vertical plate 221 of the L-shaped steel plate 22 is fixedly connected to the second side plate 213 of the U-shaped steel plate 21, and the first side plate 211 of the U-shaped steel plate 21 and the horizontal plate 222 of the L-shaped steel plate 22 are connected by the fastening assembly; both the U-shaped steel plate 21 and the L-shaped steel plate 22 are fixedly connected to the main body of the connecting beam 1.

[0023] Specifically, the holes 11 on the main body 1 of the connecting beam are made by mechanical cutting. The shape of the holes 11 can be rectangular or circular, depending on the actual usage requirements. Figure 1 and Figure 2As shown in this embodiment, the main body 1 of the connecting beam has dimensions of 250mm × 1750mm. Three holes 11 are sequentially formed on the main body 1 from left to right: a high-voltage electrical hole 11, a low-voltage electrical hole 11, and a fire-fighting water hole 11. The width of each hole 11 is 210mm, and the heights are 340mm, 240mm, and 190mm, respectively. The presence of holes 11 weakens the cross-sectional stiffness and bearing capacity of the main body 1, resulting in a decrease in the shear and bending resistance of the connecting beam. By setting a reinforcing component 2 on both sides of each hole 11 on the main body 1, the reinforcing component 2 covers the cross-section of the main body 1 and the edge of the hole 11, effectively compensating for the weakening of the cross-section caused by the holes 11, restoring the shear and bending bearing capacity of the connecting beam. Simultaneously, the reinforcing component 2 forms a ring constraint on the main body 1, enhancing the ductility of the connecting beam, effectively absorbing energy under seismic loads, and reducing the risk of structural damage.

[0024] Furthermore, the length of the first side of the U-shaped steel plate 21 is greater than the length of the second side; the length of the vertical plate 221 of the L-shaped steel plate 22 is greater than the length of the horizontal plate 222. The vertical plate 221 of the L-shaped steel plate 22 is fixedly connected to the second side plate 213 of the U-shaped steel plate 21 by welding. With this configuration, the reinforcing component 2 can be formed into a rectangular frame structure by combining the U-shaped steel plate 21 and the L-shaped steel plate 22 to surround the cross-section of the main beam 1, while also facilitating the installation of the reinforcing component 2. Figure 3 As shown, when there is an existing frame beam on one side of the main body 1 of the connecting beam, the second side plate 213 of the U-shaped steel plate 21 can be set to be lower than the bottom of the existing frame beam by a preset distance. When the reinforcement component 2 is installed, the weld between the vertical plate 221 of the L-shaped steel plate 22 and the second side plate 213 of the U-shaped steel plate 21 is located outside the existing structural joint to facilitate welding.

[0025] Furthermore, both the U-shaped steel plate 21 and the L-shaped steel plate 22 are made of flat steel of equal width by bending. In this embodiment, both the U-shaped steel plate 21 and the L-shaped steel plate 22 are made of 100mm×4mm flat steel by bending. In specific implementation, the specifications of the flat steel that meet the strength requirements can be selected according to the size of the hole 11 opened on the main body of the connecting beam 1.

[0026] Further, the fastening assembly includes a screw 23 and a nut 24. The first end of the screw 23 is fixedly connected to the end of the first side plate 211 away from the bottom plate 212. A fixing hole for the screw 23 to pass through is provided at the end of the horizontal plate 222 away from the vertical plate 221. The second end of the screw 23 passes through the fixing hole on the horizontal plate 222 and is screwed onto the nut 24. Preferably, the first end of the screw 23 is fixedly connected to the end of the first side plate 211 away from the bottom plate 212 by welding. The welding length between the screw 23 and the first side plate 211 is strictly controlled to be more than 10 times the diameter of the screw 23. In this embodiment, the diameter of the screw 23 is 22mm, and the welding length between the screw 23 and the first side plate 211 is not less than 220mm to meet the tensile strength requirements of the weld under tension. See also... Figure 3 In this embodiment, the upper side of the main body 1 of the connecting beam abuts against the existing floor slab. When the first side plate 211 of the U-shaped steel plate 21 and the horizontal plate 222 of the L-shaped steel plate 22 are connected by the fastening assembly, a through hole for the screw 23 is drilled in the existing floor slab. The first end of the screw 23 is welded and fixed to the first side plate 211 of the U-shaped steel plate 21. The second end of the screw 23 passes through the through hole in the existing floor slab and the fixing hole on the horizontal plate 222 and then screws a nut 24. By tightening the nut 24, the U-shaped steel plate 21 and the L-shaped steel plate 22 are locked and fixed, and a preload force is provided for movement. This ensures that the reinforcing assembly 2 can effectively constrain the main body 1 of the connecting beam, so that both the U-shaped steel plate 21 and the L-shaped steel plate 22 can be tightly attached to the surface of the main body 1 of the connecting beam.

[0027] Furthermore, both the U-shaped steel plate 21 and the L-shaped steel plate 22 are fixedly connected to the main body of the connecting beam 1 via anchor bolts 3. By setting multiple anchor bolts 3 on the main body of the connecting beam 1, the U-shaped steel plate 21 and the L-shaped steel plate 22 are connected and fixed to the main body of the connecting beam 1 at multiple locations, improving the firmness and reliability of the connection of the reinforcement component 2 to the main body of the connecting beam 1. In specific implementation, the anchor bolts 3 used can be one of chemical anchor bolts, driven anchor bolts, or expansion anchor bolts.

[0028] Further, see Figure 4 A connecting steel bar 4 is provided in the hole 11. Both ends of the connecting steel bar 4 are fixedly connected to the cut ends of the reinforcing bars in the main body of the connecting beam when the hole 11 is made by welding. By providing the connecting steel bar 4 in the hole 11, the force transmission of the reinforcing bars in the main body of the connecting beam is ensured smoothly, and the shear and bending bearing capacity of the connecting beam is restored to a certain extent. In specific implementation, when providing the connecting steel bar 4 in the hole 11, the concrete at the cut ends of the reinforcing bars in the main body of the connecting beam can be removed to facilitate the welding of the connecting steel bar 4, ensuring welding quality and post-weld strength. The diameter of the connecting steel bar 4 is consistent with the diameter of the cut reinforcing bars in the main body of the connecting beam.

[0029] Furthermore, a repair layer 12 is provided on the inner wall of the hole 11 in the main body of the connecting beam, and the repair layer 12 is cast using high-strength grout. By providing the repair layer 12 on the inner wall of the hole 11 in the main body of the connecting beam, the local crack resistance at the hole 11 of the main body of the connecting beam can be enhanced. Furthermore, an interface agent layer is coated on the inner wall of the hole 11 in the main body of the connecting beam, and the repair layer 12 is disposed on the interface agent layer. In specific implementation, the concrete surface at the edge of the hole 11 is first roughened, and after cleaning the slag, an interface agent is applied to the inner wall of the hole 11 in the main body of the connecting beam, and high-strength grout is used to repair the area around the hole 11.

[0030] After the reinforcement component 2 is installed, the connecting steel bar 4 is connected, and the repair layer 12 is set, check the welding quality of the reinforcement component 2 and the connecting steel bar 4, the tightness of the fastening components, and the compactness of the repair layer 12 at the hole 11 to ensure that the reinforcement measures meet the structural stress requirements.

[0031] In summary, the coupling beam opening reinforcement structure provided by this utility model effectively compensates for the cross-sectional weakening caused by the opening by setting reinforcement components on both sides of the opening location in the main body of the coupling beam. These rectangular frame reinforcement components strengthen the main body of the coupling beam, restoring its shear and bending bearing capacity. Simultaneously, the reinforcement components form a ring constraint on the main body of the coupling beam, enhancing its ductility and improving its seismic performance. This coupling beam opening reinforcement structure is simple in structure, convenient to construct, and can shorten the construction period and reduce construction costs.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A reinforcement structure for openings in connecting beams, characterized in that, Includes the main body of the connecting beam and the reinforcing components; among which, The main body of the connecting beam has holes, and the reinforcing component is a rectangular frame structure that matches the cross-section of the main body of the connecting beam. The reinforcing component is fitted on both sides of the holes on the main body of the connecting beam and is fixedly connected to the main body of the connecting beam. The reinforcement components include a U-shaped steel plate, an L-shaped steel plate, and a fastening assembly. The U-shaped steel plate includes a first side plate, a bottom plate, and a second side plate connected in sequence, with the first and second side plates respectively perpendicularly disposed at both ends of the bottom plate. The L-shaped steel plate includes a vertical plate and a horizontal plate connected perpendicularly to each other. The vertical plate of the L-shaped steel plate is fixedly connected to the second side plate of the U-shaped steel plate, and the first side plate of the U-shaped steel plate is connected to the horizontal plate of the L-shaped steel plate through the fastening assembly. Both the U-shaped steel plate and the L-shaped steel plate are fixedly connected to the main body of the connecting beam.

2. The beam-connecting beam opening reinforcement structure according to claim 1, characterized in that, The length of the first side of the U-shaped steel plate is greater than the length of the second side; the length of the vertical plate of the L-shaped steel plate is greater than the length of the horizontal plate.

3. The beam-connecting beam opening reinforcement structure according to claim 1, characterized in that, Both the U-shaped and L-shaped steel plates are made of flat steel of equal width by bending.

4. The beam-connecting beam opening reinforcement structure according to claim 1, characterized in that, The vertical plate of the L-shaped steel plate is fixedly connected to the second side plate of the U-shaped steel plate by welding.

5. The beam-connecting beam opening reinforcement structure according to claim 1, characterized in that, The fastening assembly includes a screw and a nut. The first end of the screw is fixedly connected to the end of the first side plate away from the bottom plate. The end of the horizontal plate away from the vertical plate has a fixing hole for the screw to pass through. The second end of the screw passes through the fixing hole on the horizontal plate and is screwed with the nut.

6. The beam opening reinforcement structure according to claim 5, characterized in that, The first end of the screw is fixedly connected to the end of the first side plate away from the base plate by welding.

7. The beam-connecting beam opening reinforcement structure according to claim 1, characterized in that, Both the U-shaped steel plate and the L-shaped steel plate are fixedly connected to the main body of the connecting beam by anchor bolts.

8. The beam-connecting beam opening reinforcement structure according to claim 1, characterized in that, The hole is provided with connecting steel bars, and the two ends of the connecting steel bars are fixedly connected to the cut ends of the steel bars in the main body of the connecting beam when the hole is opened by welding.

9. The beam-connecting beam opening reinforcement structure according to claim 1, characterized in that, A repair layer is provided on the inner wall of the hole of the main body of the connecting beam, and the repair layer is cast with high-strength grout.

10. The beam-connecting beam opening reinforcement structure according to claim 9, characterized in that, An interface agent layer is coated on the inner wall of the hole in the main body of the connecting beam, and the repair layer is disposed on the interface agent layer.

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