A small range plane patch construction

Abstract

The utility model relates to a kind of small-range plane patching plate structure, for the patching plate between small-range gap of peripheral structure and main structure in building reconstruction, specifically including one or more fixedly connected patching plate unit, patching plate unit includes the steel sheet connected in the beam face of main structure concrete beam by bolt, steel sheet outer edge extends to with the inside side line of peripheral structure alignment, steel sheet lower part is fixed with angle steel one, angle steel one fixedly connected angle steel two, and angle steel two is connected with concrete beam by bolt.The application fills gap through steel sheet, the steel plate is reinforced by angle steel one, and the load transmission of angle steel one and steel plate is guaranteed to main structure concrete beam by angle steel two, this structure solves the problem of small-range plane patching plate between peripheral structure and main structure, and can be constructed by dry work, the mode of standard unit operation, convenient to operate and environmental protection, material is simple, construction time and construction cost can be greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of building structure reinforcement technology, specifically to a small-area planar patch structure. Background Technology

[0002] During building renovation, to improve project quality, the design often modifies the building's facade to achieve a better architectural effect. For example, the original window-wall system might be changed to a curtain wall system. Because curtain wall systems require vertical continuity of the building facade, the vertical joists must run vertically. Or, to enrich the vertical lines, a zigzag curtain wall might be used. These changes will result in a certain gap between the outer edge of the main structure and the outer edge of the renovated structure. These gaps are often in the range of 100-500mm. If ordinary concrete slabs are used for patching, there will be a series of problems such as difficulties in formwork, rebar installation, and pouring. At the same time, because it is a wet construction method, it will also have an adverse impact on the environment.

[0003] Meanwhile, since the renovation design involves the appearance of the facade, the curtain wall renovation may take precedence over the main structure renovation. After the curtain wall construction is completed, the gap between the curtain wall and the main structure floor slab will vary more due to construction issues. If the formwork is used for concrete pouring at this time, the variation in the formwork will be even greater, making it more difficult to cut the steel bars. At the same time, due to the smaller gap, the installation of steel bars will also be more difficult.

[0004] Even if the main structural renovation takes priority over the curtain wall project, and the facade is constructed using full scaffolding, making construction convenient, ordinary concrete can be used for slab reinforcement. However, the interface between the old and new concrete will be unfavorable under shear stress, and reinforcing it with bolts to resist shear will increase costs.

[0005] Therefore, a patch structure that is cost-effective, environmentally friendly, and easy to construct needs to be considered. Utility Model Content

[0006] This utility model addresses the technical problems existing in the prior art by providing a small-area planar patch structure.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A small-area planar patch structure is used for patching small gaps between the external envelope and the main structure in building renovation. It includes one or more fixedly connected patch units. Each patch unit includes a steel plate set on the surface of a concrete beam of the main structure. The steel plate is connected to the concrete beam through connectors. Its outer edge extends to align with the inner edge of the external envelope. An angle steel one is fixedly fixed to the lower part of the steel plate. An angle steel one is fixedly connected to angle steel two. An angle steel two is connected to the concrete beam through connectors.

[0008] The beneficial effects of this utility model are as follows: steel plates are set to fill the small gaps between the outer enclosure structure and the main structure, and a pair of angle steels are used to reinforce the steel plates. Angle steel 2 is used to ensure that the load of angle steel 1 and the steel plates is transferred to the concrete beams of the main structure. This structure solves the problem of small-area planar plate filling between the outer enclosure structure and the main structure. It can be constructed by dry operation and standard unit operation, without the need for formwork and concrete pouring. The construction is convenient and environmentally friendly, and the materials are simple. Due to the reduction in reinforcement workload, the construction time and construction cost can also be greatly reduced.

[0009] Furthermore, multiple patch plate units can be welded together to form a rigid whole with strong overall load-bearing capacity; and the total length can be adjusted according to the actual gap length to flexibly cope with complex gap scenarios.

[0010] Furthermore, the concrete beam surface is provided with a building surface layer. The construction of the building surface layer can increase the overall rigidity of the steel structure, thereby achieving a good level of comfort.

[0011] Furthermore, the steel plate is a patterned steel plate, covering the beam surface and sides of the concrete beam. The beam side steel plate is connected to the concrete beam through beam side connectors for lateral fixation and extends to one side of the outer enclosure structure to form a cantilever section (outer span); the beam surface steel plate is connected to the concrete beam through beam surface connectors for longitudinal anchoring and serves as a portion covering the top surface of the main structure concrete beam, forming the inner span balance section of the cantilever section steel plate.

[0012] Furthermore, the angle steel is located on the lower part of the steel plate near the concrete beam and is welded and fixed to the steel plate. This directly provides vertical support and stiffness reinforcement for the steel plate, reducing the downward deflection of the steel plate due to cantilever or load, and preventing excessive deformation of the steel plate.

[0013] Furthermore, the second angle steel is welded and fixed simultaneously with the first angle steel and the steel plate, and then fixed to the concrete beam by connectors. This not only enhances the connection rigidity, but also stably transfers the load of the first angle steel and the steel plate to the concrete beam, ensuring that the inner span of the patterned steel plate bears the force and forms a cantilever on the outer span.

[0014] Furthermore, the angle steel 2 is closely fitted to the corner of the concrete beam, which can ensure that one end of the angle steel is fully compressed, thereby making the overall structure formed by the steel plate and angle steel 1 and angle steel 2 stable under stress.

[0015] Furthermore, the contact points between the angle steel and the steel plate and the concrete beam are fixed by injecting structural adhesive, which can effectively fill the areas where the bond between the angle steel and the steel plate is not tight due to unevenness of the concrete surface.

[0016] Furthermore, the connectors are made of bolts or chemical anchors, which can achieve stable load transfer and facilitate subsequent adjustment or maintenance. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a small-area planar patch structure according to an embodiment of the present utility model; Figure 2 This is a structural layout diagram of the patch unit according to an embodiment of the present utility model; Figure 3 for Figure 2 Sectional view along the AA direction; The attached diagram lists the components represented by each number as follows: 1. Patch unit, 2. Steel plate, 3. Angle steel one, 4. Angle steel two, 5. Connector, 6. Concrete beam, 7. External enclosure structure, 8. Building surface layer. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0020] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0021] In the description of this application, spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., are used herein to describe the relationship between one element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "under" or "below" of other elements or features will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0022] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0023] Example 1 like Figures 1 to 3 As shown, this embodiment provides a small-area planar patch structure for patching small gaps (e.g., 100-500mm gaps) between the external envelope structure 7 (e.g., curtain wall system) and the main structure during building renovation. Specifically, it includes a steel plate 2 installed on the surface of the concrete beam 6 of the main structure. The steel plate 2 is connected to the concrete beam 6 via connectors 5, and its outer edge extends to align with the inner edge of the external envelope structure 7. Angle steel 1 3 is fixed to the lower part of the steel plate 2. Angle steel 1 3 is fixedly connected to angle steel 2 4, which is also connected to the concrete beam 6 via connectors 5. The steel plate 2, angle steel 1 3, and angle steel 2 4 combine to form a patch unit 1. Specifically: The concrete beam 6 has a building surface layer on its surface. The construction of the building surface layer can increase the overall rigidity of the steel structure, thereby achieving a good level of comfort.

[0024] The steel plate 2 is a patterned steel plate, covering the beam surface and sides of the concrete beam 6. The beam side steel plate 2 is connected to the concrete beam 6 through the beam side connector 5 to achieve lateral fixation, and extends to one side of the outer enclosure structure 7 to form a cantilever section (outer span); the beam surface steel plate 2 is connected to the concrete beam 6 through the beam surface connector 5 to achieve longitudinal anchorage, and as the part covering the top surface of the main structure concrete beam 6, it forms the inner span balance section of the cantilever section steel plate 2.

[0025] The angle steel 3 is located on the lower part of the steel plate 2, near the concrete beam 6, and is welded and fixed to the steel plate 2. It directly provides vertical support and stiffness reinforcement to the steel plate 2, reducing the downward deflection caused by cantilever or load-bearing, and preventing excessive deformation of the steel plate 2. The length of the angle steel 3 extends from the edge of the concrete beam 6 to the outer edge of the steel plate 2. There are no restrictions on the distance between the back of the angle steel 3 and the edge of the steel plate 2, or on the spacing between adjacent angle steel 3 members; the appropriate distance should be for ease of welding and load-bearing capacity.

[0026] Angle steel 24 is simultaneously welded and fixed to angle steel 3 and steel plate 2, and then fixed to the concrete beam 6 by connector 5. To facilitate welding of angle steel 24 and angle steel 3, the length of the leg on the side where angle steel 24 is connected should match the length of the leg of angle steel 3 to meet the requirements of stress and weld length during welding. The length of the other leg of angle steel 24 needs to meet the allowable distance from the bolt center to the edge of the component, and the length of angle steel 24 can match the length of the leg of angle steel 3. This not only enhances the connection rigidity, but also stably transfers the load of angle steel 3 and steel plate 2 to the concrete beam 6, ensuring that the inner span of the patterned steel plate 2 is stressed and forms a cantilever on the outer span. The tight fit between angle steel 24 and the beam corner of the concrete beam 6 ensures that the root of angle steel 3 is fully compressed, thereby making the overall structure formed by steel plate 2, angle steel 3, and angle steel 2 stable under stress. The contact points between the angle steel 24 and the steel plate 2 and the concrete beam 6 are fixed by injecting structural adhesive, which can effectively fill the areas where the bond between the angle steel 2 and the steel plate is not tight due to unevenness of the concrete surface.

[0027] The connector 5 uses bolts or chemical anchors, which can achieve stable load transfer and facilitate later adjustment or maintenance. The position and specifications of the connector 5 can be adjusted according to the beam width and stress.

[0028] The working principle of the above structure: Before installation, the patch plate unit 1 is drilled at corresponding positions on the concrete beam 6, steel plate 2, and angle steel according to the bolt distribution. When connecting the patch plate unit 1 to the concrete beam 6, the concrete on the connection side of the concrete beam 6 is ground to ensure a tight fit between the concrete beam 6 and the patch plate unit 1 (steel plate and angle steel), resulting in more uniform material stress. Specifically, the concrete at the beam corner is ground into an arc-shaped surface, the curvature of which is determined by the inner radius of angle steel 2 4. The concrete at the connection with the angle steel must be ground smooth, and larger holes, depressions, exposed reinforcement, etc., are repaired and leveled. The length and thickness of the ground concrete beam 6 are determined by the leg length and thickness of angle steel 2 4, so that the concrete beam 6 forms a groove that fits the patch plate unit 1.

[0029] During installation, steel plate 2 and angle steel 2 4 are connected to concrete beam 6 through connector 5. The contact parts between concrete beam 6 and steel plate 2 and angle steel need to be treated with structural adhesive. Through connector 5 and structural adhesive, the patch unit 1 can be tightly connected to the beam, with reasonable stress distribution and convenient construction.

[0030] This embodiment fills the small gap between the outer enclosure structure 7 and the main structure by setting steel plates 2. The patterned steel plate 2 serves as the base surface, and the steel plate 2 is reinforced by angle steel 3. Angle steel 4 ensures that the load of angle steel 3 and steel plate 2 is transferred to the concrete beam 6 of the main structure. The connection is made tightly to the main structure by connectors 5 and structural adhesive. This structure solves the problem of small-area planar plate filling between the outer enclosure structure 7 and the main structure. It can be constructed by dry operation and standard unit operation, without the need for formwork and concrete pouring. The construction is convenient and environmentally friendly, and the materials are simple. Due to the reduction in reinforcement workload, the construction time and construction cost can also be significantly reduced.

[0031] Example 2 It is basically the same as Example 1, except that: Multiple of the aforementioned patch plate units 1 can be used and fixed together by welding. The advantages are: 1. Capable of adapting to complex gap scenarios, enhancing flexibility. In building renovations, the length of the gap between the external envelope and the main structure often varies due to factors such as building facade design and structural errors. By welding multiple patch plate units together, the total patch plate length can be flexibly adjusted according to the actual gap length, eliminating the need to customize integral patch plate components for gaps of different lengths. This effectively addresses non-standard size gap scenarios and reduces design and processing costs.

[0032] 2. Enhance overall load-bearing capacity and improve structural stability After multiple patch plate units are welded together to form a rigid whole, the load between each unit can be evenly transferred through the weld seams, avoiding the local stress concentration problem that may occur when a single unit is under independent stress. The stiffness and deformation resistance of the overall structure are significantly improved, enabling it to better withstand the loads of the building surface, external environmental loads (such as wind force), and bending moments generated by its own cantilever, ensuring the safety of the patch plate structure for long-term use.

[0033] 3. Simplify the construction process and improve efficiency. The patch panels can be pre-produced in a standardized factory, forming "standard parts" of uniform specifications. During on-site construction, the required number of patch panels are simply hoisted into place according to the gap length, welded together, and then fixed to the concrete beam using connectors. Standardized production reduces the complexity of on-site processing, and the welding and splicing operation is simple and convenient, significantly shortening the wet work process compared to traditional concrete patch panels, which involves formwork, pouring, and curing.

[0034] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A small-area planar patching structure, used for patching small gaps between the external envelope and the main structure in building renovation, characterized in that, The device includes one or more fixedly connected patch plate units. Each patch plate unit includes a steel plate disposed on the surface of the main structure concrete beam. The steel plate is connected to the concrete beam through a connector. Its outer edge extends to be aligned with the inner edge of the outer enclosure structure. An angle steel one is fixedly fixed to the lower part of the steel plate. An angle steel one is fixedly connected to angle steel two. An angle steel two is connected to the concrete beam through a connector.

2. The small-area planar patch structure according to claim 1, characterized in that, Multiple of the patch plate units are extended by welding.

3. The small-area planar patch structure according to claim 1, characterized in that, The concrete beam surface is provided with a building surface layer.

4. The small-area planar patch structure according to claim 1, characterized in that, The steel plate is a patterned steel plate, which covers the beam surface and sides of the concrete beam.

5. The small-area planar patch structure according to claim 1, characterized in that, The angle steel is located on the lower part of the steel plate, near the concrete beam, and is welded and fixed to the steel plate.

6. The small-area planar patch structure according to claim 1, characterized in that, The second angle steel is welded and fixed to the first angle steel and the steel plate at the same time, and the second angle steel is fixed to the concrete beam by means of connectors.

7. The small-area planar patch structure according to claim 1, characterized in that, The angle steel is tightly fitted to the corner of the concrete beam.

8. The small-area planar patch structure according to claim 1, characterized in that, The contact points between the angle steel and the steel plate and the concrete beam are fixed by injecting structural adhesive.

9. A small-area planar patch structure according to claim 1, characterized in that, The connectors are made of bolts or chemical anchors.

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