A building frame reinforcement structure

Abstract

This application discloses a building frame reinforcement structure. The building frame includes frame columns and frame beams. The frame columns are fixed using a column reinforcement structure, which includes a first column reinforcement form. The first column reinforcement form includes several angle steels and several connecting plates. The angle steels vertically cover the corners of the frame columns, and the connecting plates horizontally connect adjacent angle steels. The connecting plates on the same horizontal plane, when connected to the angle steels, form a first reinforcement ring. Several first reinforcement rings arranged in parallel are provided on the frame columns. This application precisely strengthens the key stress-bearing parts of the frame columns by vertically covering the corners with angle steels, effectively improving the shear and bending bearing capacity of the columns. At the same time, the first reinforcement rings formed by the connecting plates provide circumferential restraint, significantly enhancing the seismic performance and deformation capacity of the columns, delaying column cracking, avoiding additional loads on the original building foundation, and greatly improving the overall structure and stability.

Description

Technical Field

[0001] This application relates to the field of building reinforcement technology, and in particular to a building frame reinforcement structure. Background Technology

[0002] In the field of building engineering, the building frame, as the core load-bearing structure, directly affects the overall safety performance of the building. With the increase in service life, changes in usage function, or upgrades in seismic codes, many existing building frame columns have problems such as insufficient load-bearing capacity and weak seismic performance, and urgently need to be reinforced.

[0003] Currently, the mainstream methods for reinforcing frame columns include concrete encasing, steel plate bonding, and steel profile encasing. Among these, concrete encasing involves complex construction procedures, a large amount of on-site wet work, and significantly increases the structure's self-weight; steel plate bonding requires high-strength base concrete, and the steel plates are prone to corrosion, resulting in poor long-term durability; traditional steel profile encasing often uses integral steel sleeves, which consumes a large amount of material, is difficult to transport and install, and has limited effectiveness in specifically reinforcing the corners of frame columns, making it difficult to achieve a balance between lightweight and high strength. Therefore, there is an urgent need for a frame column reinforcement structure that is simple in structure, convenient to construct, provides reliable reinforcement, and is cost-effective. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a building frame reinforcement structure. The building frame includes frame columns and frame beams. The frame columns are fixed using a column reinforcement structure, which includes a first column reinforcement form. The first column reinforcement form includes several angle steels and several connecting plates. The angle steels cover the corners of the frame columns in the vertical direction, and the connecting plates are fixedly connected to adjacent angle steels in the horizontal direction. The connecting plates on the same horizontal plane are connected to the angle steels to form a first reinforcement ring. Several first reinforcement rings arranged in parallel are provided on the frame column.

[0005] Preferably, the first column reinforcement configuration further includes several reinforcement plates, which are disposed at the top and bottom of each floor of the frame column. The reinforcement plates are fixedly connected to adjacent angle steels in the horizontal direction, and the reinforcement plates and angle steels on the same horizontal plane are connected to form a second reinforcement ring.

[0006] Preferably, the frame columns installed at the frame beams include middle columns, side columns, and corner columns, and the column reinforcement structure also includes steel reinforcement in the beam area; When reinforcing the central column, the equivalent steel bars in the beam area pass through the frame beam and are connected to the angle steel. The equivalent steel bars in the beam area on the same horizontal plane are connected to the angle steel to form a third reinforcing ring. When reinforcing the side columns, the frame columns at non-beam-penetrating locations are fixedly connected to two flat steel bars using gusset plates. The frame columns at beam-penetrating locations on both sides are connected to the angle steel and flat steel bars after passing through the frame beam using beam-area equivalent reinforcing bars. The frame columns at beam-penetrating locations in the middle are connected to the angle steel bars on both sides after passing through the frame beam using beam-area equivalent reinforcing bars. When reinforcing corner columns, the frame columns not passing through beams are fixedly connected to flat steel and angle steel using gusset plates, while the frame columns passing through beams use beam-area equivalent reinforcing bars that pass through the frame beam and are then connected to the angle steel and flat steel.

[0007] Preferably, the column reinforcement structure further includes a second column reinforcement configuration, which includes a plurality of vertical reinforcing bars, a plurality of first stirrups, and a plurality of tie bars. The vertical reinforcing bars extend in the vertical direction and are arranged around the frame column. The first stirrups connect and fix the plurality of vertical reinforcing bars in the horizontal direction. One end of the tie bar is fixed to the connection point of the vertical reinforcing bars and the first stirrups, and the other end of the tie bar is drilled and fixed inside the frame column. Concrete fills and encloses the frame composed of the vertical reinforcing bars, the first stirrups, and the tie bars.

[0008] Preferably, the first column reinforcement configuration and the second column reinforcement configuration are applied to different floors.

[0009] Preferably, the frame beam is fixed using a beam reinforcement structure, which includes a first beam reinforcement form, which includes horizontal reinforcing bars and second stirrups. The horizontal reinforcing bars extend in the horizontal direction, and a plurality of horizontal reinforcing bars are arranged around the frame beam. The second stirrups connect and fix the plurality of horizontal reinforcing bars in the vertical direction, and concrete fills and encloses the frame composed of the horizontal reinforcing bars and the second stirrups.

[0010] Preferably, the beam reinforcement structure includes a second beam reinforcement configuration, which includes a bottom carbon fiber cloth, a carbon fiber hoop, and several carbon fiber strips. The bottom carbon fiber cloth is flat against the bottom of the frame beam. The carbon fiber hoop extends in a U-shape from one side of the frame beam, presses against the bottom carbon fiber cloth, and extends to the other side. Several carbon fiber hoops are distributed along the length of the frame beam. The carbon fiber strips press and fix the two ends of the carbon fiber hoop. The first beam reinforcement configuration and the second beam reinforcement configuration can be applied to the frame beam individually or concurrently.

[0011] Preferably, the floor slab directly above the frame beam is also covered with beam support carbon cloth. The end of the beam support carbon cloth near the frame column is fixed with an L-shaped steel plate. One side of the L-shaped steel plate is fixed to the frame column by chemical anchors. The other side of the L-shaped steel plate is pressed against the beam support carbon cloth and then fixed to the floor slab by chemical anchors.

[0012] Preferably, one end of the L-shaped steel plate fixed to the frame column is further fixed by a reinforcing hoop. The reinforcing hoop is fixed to the frame column by chemical anchors after the L-shaped steel plate is pressed together.

[0013] Preferably, the carbon cloth hoops are divided into a dense zone and an undense zone on the frame beam, and the spacing of the carbon cloth hoops in the dense zone is closer than the spacing in the undense zone.

[0014] The beneficial effects of this utility model are: This application precisely strengthens the critical load-bearing components of the frame columns by wrapping the corners with angle steel in the vertical direction, effectively improving the shear and bending bearing capacity of the columns. Simultaneously, the first reinforcing ring formed by the gusset plates provides circumferential restraint, significantly enhancing the columns' seismic performance and deformation capacity, and delaying cracking. This structure employs a distributed combination of angle steel and gusset plates, significantly reducing the self-weight of the reinforced structure while ensuring reinforcement strength, avoiding additional load on the original building foundation, and greatly improving the overall structural integrity and stability. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model; Figure 2 This is a structural schematic diagram of the frame column of this utility model; Figure 3 This is a schematic diagram showing the transition between the first and second column reinforcement forms of this utility model. Figure 4 This is a schematic diagram of the frame column reinforcement structure of this utility model; Figure 5 This is a schematic diagram of the central column reinforcement structure of this utility model; Figure 6 This is a schematic diagram of the structure for reinforcing the side columns of this utility model; Figure 7 This is a schematic diagram of the corner post reinforcement structure of this utility model; Figure 8 This is a structural schematic diagram of the second column reinforcement configuration of this utility model; Figure 9 This is a schematic diagram of the cross-sectional structure of the second column reinforcement form of this utility model; Figure 10 This is a structural schematic diagram of the first beam reinforcement configuration of this utility model; Figure 11 This is a schematic diagram of the cross-sectional structure of the first beam reinforcement form of this utility model; Figure 12 This is a cross-sectional structural schematic diagram of another embodiment of the first beam reinforcement form of this utility model; Figure 13This is a structural schematic diagram of the second beam reinforcement configuration of this utility model; Figure 14 This is a schematic diagram of the cross-sectional structure of the second beam reinforcement configuration of this utility model.

[0016] The annotations in the attached figures are explained as follows: 100 - Frame column; 101 - Middle column; 102 - Edge column; 103 - Corner column; 200 - Frame beam; 1-Column reinforcement structure; 11-First column reinforcement form; 111-Angle steel; 112-Draped plate; 113-First reinforcement ring; 114-Reinforcement plate; 115-Second reinforcement ring; 116-Beam area equivalent reinforcement; 117-Flat steel; 12-Second column reinforcement form; 121-Vertical reinforcement; 122-First stirrup; 123-Tie bar; 2-Beam reinforcement structure; 21-First beam reinforcement form; 211-Horizontal reinforcement; 212-Second stirrup; 22-Second beam reinforcement form; 221-Beam bottom carbon fiber cloth; 222-Carbon fiber cloth stirrup; 223-Carbon fiber cloth strip; 224-Beam support carbon fiber cloth; 225-L-shaped steel plate fixing; 226-Chemical anchor bolt; 227-Reinforcement stirrup; 23-Dense zone; 24-Undense zone; 3-Concrete. Detailed Implementation

[0017] 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. It should be understood that this application is not limited to the exemplary embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0018] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] Example 1 like Figure 1-2 As shown, this application provides a building frame reinforcement structure. The building frame includes frame columns 100 and frame beams 200. The frame columns 100 are fixed by a column reinforcement structure 1. The column reinforcement structure 1 includes a first column reinforcement form 11. The first column reinforcement form 11 includes a plurality of angle steels 111 and a plurality of connecting plates 112. The angle steels 111 cover the corners of the frame columns 100 in the vertical direction. The connecting plates 112 are fixedly connected to adjacent angle steels 111 in the horizontal direction. The connecting plates 112 on the same horizontal plane are connected to the angle steels 111 to form a first reinforcement ring 113. A plurality of first reinforcement rings 113 arranged in parallel are provided on the frame columns 100.

[0022] The L-shaped section of angle steel 111 fits snugly against the corners of frame column 100, and its two legs extend along two adjacent sides of the column, simultaneously strengthening the shear resistance of the column's sides and the flexural resistance of its corners. The number of angle steel 111s must match the cross-sectional shape of frame column 100. For square or rectangular columns, typically four angle steel 111s are used, corresponding to the four right-angled corners of the column. For irregularly shaped columns, such as L-shaped columns, the number is adjusted according to the number of corners.

[0023] Angle steel 111 is continuously arranged along the height direction of frame column 100. Its length is consistent with the column height or segmented and connected. During installation, it is necessary to ensure that angle steel 111 is tightly attached to the column surface with a gap of ≤2mm. If necessary, epoxy resin mortar is used to fill the gap to prevent angle steel 111 from separating from the frame column 100 when under stress.

[0024] The connecting plate 112 is a restraining member, its function being to connect the dispersed angle steels 111 into a whole, preventing lateral instability when a single angle steel 111 is under stress. The installation plane of the connecting plate 112 is perpendicular to the axis of the frame column 100. Adjacent angle steels 111 specifically refer to two angle steels 111 that are adjacent in position around the column, such as the left rear angle steel and the left front angle steel, the left front angle steel and the right front angle steel, etc., in a square column.

[0025] like Figure 4 As shown, the first reinforcing ring 113 is formed by connecting two adjacent angle steels 111 with a connecting plate 112 to form a closed ring structure. The ring structure can generate a uniform circumferential constraint force on the column, which can effectively limit the lateral deformation of the column under the action of horizontal force. The installation planes of all reinforcing rings are parallel to each other and perpendicular to the column axis. This arrangement can form a multi-point uniform constraint in the height direction of the column, avoiding cracking in local areas due to lack of constraint, and finally forming a three-dimensional reinforcement effect of "vertical angle steel shear resistance + horizontal first reinforcing ring deformation resistance".

[0026] Furthermore, the first column reinforcement form 11 also includes several reinforcement plates 114. The reinforcement plates 114 are set at the top and bottom of each floor of the frame column 100. The reinforcement plates 114 are fixedly connected to adjacent angle steels 111 in the horizontal direction. After the reinforcement plates 114 and angle steels 111 on the same horizontal plane are connected, they form a second reinforcement ring 115.

[0027] The core design of the reinforcing plate 114 is to strengthen the weak areas of the inter-story joints of the building frame column 100. The reinforcing plate 114 is a dedicated reinforcement component for the joint area, installed at the top and bottom of each floor of the frame column 100, corresponding to the column-beam joint area of ​​the building frame. This area is the most complex part of the column under stress. Traditional reinforcement methods relying solely on the gusset plate 112 are insufficient for strengthening the joint area, while the reinforcing plate 114 is specifically designed for this weak area. The connection logic of the reinforcing plate 114 is the same as that of the gusset plate 112, but the reinforcing properties of the reinforcing plate 114 are more prominent. The reinforcing plate 114 is typically thicker and larger than the gusset plate 112, providing stronger restraint stiffness and preventing local buckling of the angle steel 111 in the joint area due to stress concentration. After the reinforcing plate 114 on the same horizontal plane is connected to the angle steel 111, a second reinforcing ring 115 is formed. Unlike the first reinforcing ring 113, the second reinforcing ring 115 is a key constraint only at the end of the column between the floors, at the top and bottom of the column respectively, and the constraint strength of the second reinforcing ring 115 is higher.

[0028] Furthermore, the frame column 100 set at the frame beam 200 includes a middle column 101, an edge column 102 and a corner column 103, and the column reinforcement structure 1 also includes beam area equivalent steel reinforcement 116. like Figure 5As shown, the central column 101 is located inside the building and is surrounded by two-way or multi-way frame beams 200, which need to transmit multi-directional beam end bending moments and loads. When reinforcing the central column 101, the beam area equivalent reinforcement 116 passes through the frame beams 200 and is connected to the angle steel 111. The beam area equivalent reinforcement 116 and the angle steel 111 on the same horizontal plane are connected to form a third reinforcement ring.

[0029] like Figure 6 As shown, the edge column 102 is located at the exterior wall of the building and is connected to the frame beam 200 on only one or both sides, with no external constraints on the non-beam side. When reinforcing the edge column 102, the frame column 100 at the non-beam-penetrating location is fixedly connected to two flat steel bars 117 using a connecting plate 112. The frame column 100 at the beam-penetrating locations on both sides is connected to the angle steel 111 and flat steel 117 after passing through the frame beam 200 using beam-area equivalent steel bars 116. The frame column 100 at the beam-penetrating location in the middle is connected to the angle steel 111 on both sides after passing through the frame beam 200 using beam-area equivalent steel bars 116.

[0030] like Figure 7 As shown, corner column 103 is located at the corner of the building, connected to frame beams 200 only on its two adjacent sides, and bears bidirectional seismic action and torque. When reinforcing corner column 103, frame columns 100 not penetrating beams are fixedly connected to flat steel 117 and angle steel 111 using gusset plates 112, while frame columns 100 penetrating beams are connected to angle steel 111 and flat steel 117 after passing through frame beams 200 using beam-area equivalent reinforcing bars 116.

[0031] Example 2 like Figure 8-9 As shown, in this embodiment, the column reinforcement structure 1 further includes a second column reinforcement form 12. The second column reinforcement form 12 includes several vertical steel bars 121, several first stirrups 122, and several tie bars 123. The vertical steel bars 121 extend in the vertical direction and are arranged around the frame column 100. The first stirrups 122 connect and fix the several vertical steel bars 121 in the horizontal direction. One end of the tie bar 123 is fixed to the connection point of the vertical steel bars 121 and the first stirrups 122, and the other end of the tie bar 123 is drilled and fixed inside the frame column 100. Concrete 3 fills and wraps the frame composed of the vertical steel bars 121, the first stirrups 122, and the tie bars 123.

[0032] The vertical reinforcing bars 121 are preferably ribbed threaded steel bars, evenly arranged around the outer perimeter of the frame column 100. The vertical reinforcing bars 121 bear the vertical load and horizontal shear force, serving as the load-bearing skeleton of the second column reinforcement form 12, compensating for the insufficient stiffness of pure steel components under high loads. The first stirrup 122 is a circular or rectangular stirrup, horizontally fitted around the outside of the vertical reinforcing bars 121. The first stirrup 122 is used to restrain the lateral deformation of the vertical reinforcing bars 121, preventing them from buckling under compression, and at the same time connecting the dispersed vertical reinforcing bars 121 into a whole load-bearing unit. The tie bar 123 is a short steel bar with hooks at one or both ends. One end is welded and fixed to the intersection of the vertical reinforcing bars 121 and the first stirrup 122, and the other end is anchored inside the frame column 100 through a drilled hole. The tie bar 123 can prevent the second form from detaching from the original column and causing the outer concrete to become hollow and cracked.

[0033] like Figure 3 As shown, the first column reinforcement configuration 11 and the second column reinforcement configuration 12 are further applied to different floors. The load and stress on the building frame decrease from the bottom floor to the top floor. Therefore, different configurations are used to adapt to different floors to achieve reinforcement as needed. The preferred approach is to use the second column reinforcement configuration 12 for high-load floors and the first column reinforcement configuration 11 for medium- and low-load floors. For example, in multi-story buildings with 6 floors or less, the second column reinforcement configuration 12 is used on floors 1-2 to bear the main load, while the first column reinforcement configuration 11 is used on floors 3-6 to meet medium load requirements and reduce the structure's self-weight. Using the second column reinforcement configuration 12 for the entire building should be avoided, as it leads to excessive foundation load. Similarly, using the first column reinforcement configuration 11 for the entire building should be avoided, as it leads to insufficient load-bearing capacity at the bottom floor. A balance between safety and economy should be considered.

[0034] Example 3 like Figure 10-12 As shown, in this embodiment, the frame beam 200 is fixed by a beam reinforcement structure 2. The beam reinforcement structure 2 includes a first beam reinforcement form 21, which includes horizontal steel bars 211 and second stirrups 212. The horizontal steel bars 211 extend in the horizontal direction, and a plurality of horizontal steel bars 211 are arranged around the frame beam 200. The second stirrups 212 connect and fix the plurality of horizontal steel bars 211 in the vertical direction. Concrete 3 fills and wraps the frame composed of the horizontal steel bars 211 and the second stirrups 212.

[0035] Horizontal reinforcement 211 is preferably made of ribbed threaded steel. Horizontal reinforcement 211 compensates for the insufficient tensile reinforcement in the original beam, improves the beam's bending capacity, and prevents cracking or bending failure at the bottom of the beam. Second stirrups 212 are fitted around the outside of the horizontal reinforcement 211 and are densely arranged at the beam ends. The second stirrups 212 are used to restrain the lateral deformation of the horizontal reinforcement 211, strengthen the beam's shear resistance, and prevent diagonal cracks from appearing in the beam due to excessive shear force.

[0036] Example 4 like Figure 13-14As shown, in this embodiment, the beam reinforcement structure 2 includes a second beam reinforcement form 22. The second beam reinforcement form 22 includes a bottom carbon fiber cloth 221, a carbon fiber hoop 222, and several carbon fiber pressure strips 223. The bottom carbon fiber cloth 221 is flatly attached to the bottom of the frame beam 200. The carbon fiber hoop 222 extends from one side of the frame beam 200 in a U-shape, and extends to the other side after pressing the bottom carbon fiber cloth 221. Several carbon fiber hoops 222 are distributed along the length direction of the frame beam 200. The carbon fiber pressure strips 223 press and fix the two ends of the carbon fiber hoop 222. The first beam reinforcement form 21 and the second beam reinforcement form 22 can be applied to the frame beam 200 individually or concurrently.

[0037] The carbon fiber cloth 221 at the bottom of the beam is cut to the width of the beam bottom and laid flat on the tension zone of the beam bottom, extending to the beam end joint area at both ends. The carbon fiber hoop 222 is made of the same material as the carbon fiber cloth 221 at the bottom of the beam, cut into a U-shape, and wrapped from the side of the beam to the bottom of the beam. After pressing the edge of the carbon fiber cloth 221 at the bottom of the beam, it extends to the other side. The carbon fiber hoop 222 is used to restrain the ends of the carbon fiber cloth 221 at the bottom of the beam, preventing the carbon fiber from peeling off under tension, and at the same time strengthening the shear resistance of the beam side. The carbon fiber strip 223 is used to eliminate the overlap gaps of the carbon fiber hoop 222, preventing rainwater or moisture from seeping in and causing bonding failure, while also enhancing the overall integrity of the hoop.

[0038] Furthermore, the floor slab directly above the frame beam 200 is also covered with beam support carbon cloth 224. The end of the beam support carbon cloth 224 near the frame column 100 is fixed with an L-shaped steel plate 225. One side of the L-shaped steel plate 225 is fixed to the frame column 100 by chemical anchor bolts 226. The other side of the L-shaped steel plate 225 is pressed against the beam support carbon cloth 224 and then fixed to the floor slab by chemical anchor bolts 226.

[0039] Carbon fiber cloth 224 is fully applied to the floor slab area directly above the frame beam 200 to solve the problem of insufficient co-force between the floor slab and the beam, and to prevent cracks in the floor slab at the support due to the bending moment at the beam end.

[0040] L-shaped steel plate 225 is installed at the end of carbon fiber cloth 224 near the frame column 100 of the beam support. The vertical leg is attached to the column surface of the frame column 100 and fixed to the frame column 100 by chemical anchor bolts 226 to transfer the carbon fiber cloth force to the column. The horizontal leg is attached to the floor slab surface and presses the end of the carbon fiber cloth 224 of the beam support. It is fixed to the floor slab by chemical anchor bolts 226 to prevent the end of the carbon fiber cloth from curling and peeling off.

[0041] Furthermore, one end of the L-shaped steel plate 225 fixed to the frame column 100 is further secured by a reinforcing hoop 227. The reinforcing hoop 227, after pressing the L-shaped steel plate 225 together, is then fixed to the frame column 100 by chemical anchors 226. The use of reinforcing hoop 227 and chemical anchors 226 solves the problem of steel plates easily loosening under long-term stress. The reinforcing hoop 227 is made of flat steel and is U-shaped or annularly pressed onto the vertical end of the L-shaped steel plate 225. Both ends of the reinforcing hoop 227 are fixed to the frame column 100 by chemical anchors 226, preventing anchor loosening due to earthquakes or temperature deformation of the L-shaped steel plate 225 and improving long-term anchoring reliability. During arrangement, each L-shaped steel plate 225 is equipped with one reinforcing hoop 227, with the hoop's centerline aligned with the centerline of the vertical leg of the steel plate, and the gap between the pressing surfaces ≤1mm.

[0042] Furthermore, to address the issue of uneven shear force distribution in different areas of the frame beam 200, several carbon fiber hoops 222 are divided into a reinforced zone 23 and an unreinforced zone 24 on the frame beam 200. The spacing of the carbon fiber hoops 222 in the reinforced zone 23 is closer than that in the unreinforced zone 24. The reinforced zone 23 extends from the edge of the frame column 100 towards the middle section of the beam, with an extension length of 1.5-2 times the beam height, ensuring that each carbon fiber hoop 222 can effectively restrain the beam side shear force and avoid shear force blind spots between adjacent hoops.

[0043] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0044] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0045] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A building frame reinforcement structure, the building frame comprising frame columns and frame beams, wherein the frame columns are fixed using a column reinforcement structure, characterized in that, The column reinforcement structure includes a first column reinforcement form, which includes several angle steels and several connecting plates. The angle steels cover the corners of the frame column in the vertical direction, and the connecting plates are fixedly connected to adjacent angle steels in the horizontal direction. The connecting plates and angle steels on the same horizontal plane form a first reinforcement ring. Several first reinforcement rings arranged in parallel are provided on the frame column.

2. A building frame reinforcement structure according to claim 1, wherein The first column reinforcement configuration also includes several reinforcement plates, which are installed at the top and bottom of each floor of the frame column. The reinforcement plates are fixedly connected to adjacent angle steels in the horizontal direction, and the reinforcement plates and angle steels on the same horizontal plane are connected to form a second reinforcement ring.

3. The building frame reinforcement structure according to claim 1, characterized in that, The frame columns installed at the frame beams include middle columns, side columns, and corner columns, and the column reinforcement structure also includes beam reinforcement and other equivalent steel bars; When reinforcing the central column, the equivalent steel bars in the beam area pass through the frame beam and are connected to the angle steel. The equivalent steel bars in the beam area on the same horizontal plane are connected to the angle steel to form a third reinforcing ring. When reinforcing the side columns, the frame columns at non-beam-penetrating locations are fixedly connected to two flat steel bars using gusset plates. The frame columns at beam-penetrating locations on both sides are connected to the angle steel and flat steel bars after passing through the frame beam using beam-area equivalent reinforcing bars. The frame columns at beam-penetrating locations in the middle are connected to the angle steel bars on both sides after passing through the frame beam using beam-area equivalent reinforcing bars. When reinforcing corner columns, the frame columns not passing through beams are fixedly connected to flat steel and angle steel using gusset plates, while the frame columns passing through beams use beam-area equivalent reinforcing bars that pass through the frame beam and are then connected to the angle steel and flat steel.

4. The building frame reinforcement structure according to claim 1, characterized in that, The column reinforcement structure also includes a second column reinforcement form, which includes several vertical steel bars, several first stirrups, and several tie bars. The vertical steel bars extend in the vertical direction and are arranged around the frame column. The first stirrups connect and fix the several vertical steel bars in the horizontal direction. One end of the tie bar is fixed to the connection point of the vertical steel bars and the first stirrups, and the other end of the tie bar is drilled and fixed inside the frame column. Concrete fills and encloses the frame composed of the vertical steel bars, the first stirrups, and the tie bars.

5. A building frame reinforcement structure according to claim 4, characterized in that, The first and second column reinforcement methods are applied to different floors.

6. A building frame reinforcement structure according to claim 1, characterized in that, The frame beam is fixed using a beam reinforcement structure, which includes a first beam reinforcement form. The first beam reinforcement form includes horizontal reinforcing bars and second stirrups. The horizontal reinforcing bars extend in the horizontal direction and a number of horizontal reinforcing bars are arranged around the frame beam. The second stirrups connect and fix the number of horizontal reinforcing bars in the vertical direction. Concrete fills and encloses the frame composed of the horizontal reinforcing bars and the second stirrups.

7. A building frame reinforcement structure according to claim 6, characterized in that, The beam reinforcement structure includes a second beam reinforcement configuration, which includes a bottom carbon fiber cloth, carbon fiber hoops, and several carbon fiber strips. The bottom carbon fiber cloth is flat against the bottom of the frame beam. The carbon fiber hoops extend in a U-shape from one side of the frame beam, press the bottom carbon fiber cloth together, and then extend to the other side. Several carbon fiber hoops are distributed along the length of the frame beam. The carbon fiber strips press and fix the two ends of the carbon fiber hoops together. The first beam reinforcement configuration and the second beam reinforcement configuration can be applied to the frame beam individually or in combination.

8. A building frame reinforcement structure according to claim 7, characterized in that, The floor slab directly above the frame beam is also covered with beam support carbon cloth. The end of the beam support carbon cloth near the frame column is fixed with an L-shaped steel plate. One side of the L-shaped steel plate is fixed to the frame column by chemical anchors. The other side of the L-shaped steel plate is pressed against the beam support carbon cloth and then fixed to the floor slab by chemical anchors.

9. A building frame reinforcement structure according to claim 8, characterized in that, One end of the L-shaped steel plate fixed to the frame column is further secured by a reinforcing hoop. The reinforcing hoop is then fixed to the frame column by chemical anchors after the L-shaped steel plate is pressed together.

10. A building frame reinforcement structure according to claim 7, characterized in that, The carbon cloth hoops are divided into a dense zone and an undense zone on the frame beam, and the spacing of the carbon cloth hoops in the dense zone is closer than that in the undense zone.

Images