Reinforcement device and construction method for protecting brick wall

Abstract

The present invention relates to the field of building construction technology, and discloses a reinforcement device for protecting brick walls, comprising a locking steel bar for penetrating the joints of bricks in the same layer of an existing wall, a locking structure located on one side of the existing wall and fixed to the locking steel bar, and a fixing structure located on the other side of the existing wall and connected to the locking steel bar to fix its position; the locking steel bar is provided with a locking piece that engages with the joints of adjacent vertical rows of bricks as it rotates; the locking structure comprises a strip steel plate connected to one end of the locking steel bar and arranged closely to the existing wall. The present invention inserts the locking steel bar with the locking piece into the joints of the brick layers and rotates it, so that the locking piece is tilted and placed between the joints of adjacent vertical rows of bricks, and uses the bricks of the brick wall itself as a tie force point for reinforcement, without damaging the bricks, so that the appearance and structure of the entire wall remain intact, while facilitating construction.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a reinforcement method and a reinforcement device for protecting a brick wall. Background Art

[0002] Historical buildings have suffered varying degrees of damage over time and weather. In order to reproduce their historical traces or protect the only remaining buildings, it is very important to reinforce and restore the existing walls. Most existing reinforcement methods are to reinforce the wall by cutting grooves in the existing wall, then installing workpieces in the grooves and connecting them to steel columns outside the wall. For example, Chinese utility model patent No. CN207110058U cuts grooves in the wall, sets sliding connection devices, and then connects them to steel columns outside the wall to form reinforced concrete short beams for reinforcement. This reinforcement method requires destroying some bricks, which affects their historical appearance. Moreover, most historical walls are not as stable as they were at the beginning after many years, which affects the stability of the overall structure of the wall and is not conducive to long-term protection. Other existing protection methods, such as Chinese invention patent No. CN110388092B, provide a solution of dividing the existing wall into several units, which are then disassembled and repaired separately, and finally reassembled. Although this protection method can better protect the existing historical wall, it requires significant modification of the original wall, which is not conducive to preserving its historical traces. In addition, the construction is complicated and the cost is high. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a reinforcement device and construction method for protecting brick walls. A locking steel bar with a locking piece is inserted into the gap between the brick layers and rotated so that the locking piece is tilted and placed between the adjacent vertical brick joints. The bricks of the brick wall itself are used as the tie force points for reinforcement without damaging the bricks, so that the appearance and structure of the entire wall remain intact, and the construction is convenient.

[0004] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a reinforcement device for protecting a brick wall, comprising a locking steel bar for penetrating the brick joints of the same layer of an existing wall, a locking structure located on one side of the existing wall and fixed to the locking steel bar, and a fixing structure located on the other side of the existing wall and connected to the locking steel bar to fix its position; the locking steel bar is provided with a locking member which is engaged in the brick joints of adjacent vertical rows after the locking steel bar rotates; the locking structure comprises a strip steel plate connected to one end of the locking steel bar and arranged tightly against the existing wall.

[0005] Furthermore, threaded sections are provided at both ends of the locking steel bar, and the locking pieces are provided corresponding to the adjacent vertical brick joints on the existing masonry wall; the locking structure also includes a connecting sleeve threadedly connected to the threaded section, and the connecting sleeve is fixedly connected to the fixed square head.

[0006] Furthermore, the locking member includes two symmetrical first locking rings, the middle parts of the first locking rings are bent into a semicircle, and the middle parts of the two first locking rings are engaged with the locking steel bars, and the upper and lower parts of the two first locking rings are fixedly connected by fastening screws respectively.

[0007] Furthermore, the locking member includes a second locking ring, which includes a circle with an opening and cards connected to both ends of the circular opening for clamping into the brick joints, and the two cards are fixed by fastening screws.

[0008] Furthermore, the strip steel plate is provided with a steel plate through hole corresponding to the position of the locking steel bar for the steel plate to pass through. The connecting sleeve is connected to the threaded section and then passed through the steel plate through hole. The strip steel plate is squeezed between the existing masonry wall and the fixed square head. The fixed square head is provided with a positioning rod socket that passes through up and down. A positioning ring is provided on the side of the strip steel plate away from the existing masonry wall. The positioning rod socket and the positioning ring are both connected with a vertically arranged positioning rod.

[0009] Furthermore, the fixing structure includes a U-shaped positioning piece, which includes a U-shaped portion passed by the locking steel bar, and fixing plates arranged on both sides of the open end of the U-shaped portion and welded to the vertically arranged steel columns; the U-shaped portion of the U-shaped positioning piece is clamped with the U-shaped clamp, and the U-shaped clamp includes a positioning plate that is tightly attached to the side of the U-shaped positioning piece away from the existing masonry wall, and an arc groove matching the shape of the locking steel bar is provided on the positioning plate. Two long strips that are inserted into the inner wall of the U-shaped portion are arranged at a distance on one side of the positioning plate, and the locking steel bar passes through the two long strips. A second gasket is sleeved on the passing portion, and the threaded section of the passing portion is threadedly connected to the nut. The second gasket is extruded between the nut and the positioning plate, and a first gasket is extruded between the U-shaped positioning piece and the existing masonry wall.

[0010] Furthermore, a strip steel plate and a corresponding steel column form a group, and a strip steel plate is connected to at least three locking steel bars. Two of the three locking steel bars are respectively fixed to both sides of the steel column by a fixed structure, and the fixed square head connected to these two locking steel bars is located near one end of the strip steel plate. The third locking steel bar is located between the above two locking steel bars, and the fixed square head connected to one end of the third locking steel bar is located between the existing masonry wall and the steel column. The other end of the third locking steel bar passes through the corresponding steel plate through hole and is connected to the fastener outside the wall.

[0011] Furthermore, the locking steel bars are arranged corresponding to the brick joints of the same layer, and a hook is arranged on a side of the steel column close to the existing wall and is plugged into the corresponding positioning rod socket.

[0012] A construction method for a reinforcement device for protecting a brick wall comprises the following steps:

[0013] Step S1. Observe the brickwork position of the existing wall to be protected, determine the position of each adjacent vertical brick seam of each layer of brickwork and select a brickwork layer seam to determine the jack position;

[0014] Step S2. The socket position determined in step S1 is opened to accommodate the steel bar socket for locking the steel bar, and the locking member socket for accommodating the locking member, the socket being perpendicular to the existing masonry wall and passing through;

[0015] Step S3. Determine the position of the upper brickwork and the lower brickwork of the jack position, and then determine the number of locking members and the position to be installed, and then install the locking members on the locking steel bars, so that all the locking members are located on the same surface;

[0016] Step S4. Insert the locking steel bar with the locking member into the steel bar receptacle and the locking member receptacle in Step S, keeping the locking members horizontal during insertion until each locking member aligns with the adjacent vertical brick joints, while ensuring that the threaded sections at both ends of the locking steel bar protrude from both ends of the existing masonry wall. Then, rotate the locking steel bar until the locking member is positioned between the adjacent vertical brick joints of the upper layer, between the adjacent vertical brick joints of the lower layer, or between the adjacent vertical brick joints of both the upper and lower layers.

[0017] S5. After the position of the locking steel bars and the locking member is determined, an adhesive is injected into the socket to enhance the connection strength between the locking steel bars and the locking member and the existing masonry wall;

[0018] S6. On the outdoor side of the existing masonry wall, put the through-holes on the strip steel plate onto the connecting sleeve, then thread the connecting sleeve into the corresponding threaded section, then insert several positioning rods into the positioning rod insertion holes and positioning rings respectively, and connect the locking steel bars without fixed square heads on the outdoor side of the existing masonry wall to the external wall fasteners through the threaded sections. The external wall fasteners and the existing masonry wall are pressed against each other; then on the indoor side of the existing masonry wall, screw the threaded sections at the hooks on the corresponding steel columns onto the fixed square heads, and then lift the steel columns so that the hooks Insert them into the corresponding positioning rod sockets, then put the two first gaskets and two U-shaped positioning pieces of the same group onto the corresponding locking steel bars, insert the long strip of the U-shaped clip into the U-shaped part, and place the locking steel bar against the bottom of the U-shaped part, then put the second gasket on the locking steel bar, screw on the nut, and finally weld the U-shaped positioning piece to the side of the steel column. A set of locking structure and fixed structure are installed. If the same steel column corresponds to multiple sets of locking structures and fixed structures, multiple sets of locking steel bars should be installed in advance along the height direction of the steel column before hoisting the steel column.

[0019] The beneficial effects of the present invention are as follows: the present invention provides an insertion hole in the brickwork seam of the existing wall, inserts a locking steel bar with a locking piece into the insertion hole, the position and number of the locking piece can be adjusted as needed, the locking steel bar with the locking piece is inserted into the brickwork seam and rotated, so that the locking piece is tilted and placed between the adjacent vertical brick seams, the side surface of the locking piece is against the adjacent vertical bricks, and the bricks of the brick wall itself are used as the tensioning force point for reinforcement without damaging the brick body, and the construction is convenient and the cost is low; by arranging the fixed square head, the strip steel plate, the connecting sleeve and the positioning rod insertion hole, the strip steel plate and the locking steel bar are tightly attached to the outdoor side of the existing wall The existing masonry wall is fixed by arranging hooks on the steel column and arranging mutually connected U-shaped positioning pieces and U-shaped clips at the ends of the steel column and the locking steel bars, so that the steel column and the locking steel bars are tightly fixed to the indoor side of the existing masonry wall. The fixation of the strip steel plate and the locking steel bars, as well as the fixation of the locking piece, the locking steel bars and the existing masonry wall form an internal integrated fixation of the locking piece - brickwork - locking piece. The fixation of the locking piece and the locking steel bars form an overall integrated fixation of the strip steel plate - the existing masonry wall - the steel column. The internal and external integrated fixation improves the stability and the integrity and relevance of the structure, so that the appearance and structure of the entire wall remain intact. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a socket opened on an existing masonry wall according to the present invention;

[0021] Figure 2 For the present invention Figure 1 Schematic diagram of the structure at A in the middle;

[0022] Figure 3 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the locking steel bar and fixed square head structure of the present invention;

[0024] Figure 5 This is a schematic structural diagram of the first type of locking member of the present invention;

[0025] Figure 6 This is a schematic structural diagram of the second type of locking member of the present invention;

[0026] Figure 7 This is a schematic diagram of the strip steel plate structure on the outer side of the wall of the present invention;

[0027] Figure 8 This is a schematic diagram of the top view of the structure of the strip steel plate and the fixed square head of the present invention;

[0028] Figure 9 It is a rear view structural diagram of the strip steel plate and the fixed square head of the present invention;

[0029] Figure 10This is a schematic diagram of the indoor fixing structure of the present invention;

[0030] Figure 11 This is a schematic diagram of the rear view structure of the steel column of the present invention;

[0031] Figure 12 It is a schematic structural diagram of the steel column from the right side of the present invention.

[0032] In the figure: 1. Upper brickwork; 2. Lower brickwork; 3. Brickwork joints; 4. Brick joints on the same layer; 5. Existing wall; 6. Steel column; 7. Locking steel bar; 8. Locking piece; 801. First locking ring; 802. Fastening screw; 803. Second locking ring; 804. Steel bar socket; 805. Locking piece socket; 9. Threaded section; 10. Fixed square head; 11. Connecting sleeve; 12. Positioning rod socket; 13. Strip steel plate; 14. Steel plate through hole; 15. Positioning ring; 16. Positioning rod; 17. External wall fastener; 18. External wall paint layer; 19. Hook; 20. First gasket; 21. U-shaped positioning piece; 22. U-shaped clamp; 23. Second gasket; 24. Nut. DETAILED DESCRIPTION

[0033] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0034] Example:

[0035] like Figure 1-12 As shown, a reinforcement device for protecting a brick wall includes a locking steel bar 7 for penetrating a joint 4 of bricks in the same layer of an existing wall 5, a locking structure located on one side of the existing wall 5 and fixed to the locking steel bar 7, and a fixing structure located on the other side of the existing wall 5 and connected to the locking steel bar 7 to fix its position; the locking steel bar 7 is provided with a locking member 8 that engages with the joint between adjacent vertical rows of bricks after the locking steel bar 7 rotates; the locking structure includes a strip steel plate 13 connected to one end of the locking steel bar 7 and closely mounted to the existing wall 5, the side of the existing wall 5 where the steel column 6 is provided is the indoor side, and the side where the strip steel plate 13 is provided is the outdoor side.

[0036] A threaded section 9 is provided at both ends of the locking steel bar 7, and the locking member 8 is provided corresponding to the adjacent vertical brick joints on the existing wall 5; the locking structure also includes a connecting sleeve 11 threadedly connected to the threaded section 9, and the connecting sleeve 11 is fixedly connected to the fixed square head 10. The locking member 8 has multiple rows of vertical bricks in the direction perpendicular to the existing wall 5.

[0037] The locking member 8 includes two symmetrical first locking rings 801, the middle part of the first locking ring 801 is bent into a semicircle, and the middle parts of the two first locking rings 801 cooperate to engage with the locking steel bar 7, and the upper and lower parts of the two first locking rings 801 are fixedly connected by fastening screws 802 respectively; after the locking member 8 is engaged with the locking steel bar 7, the head of the fastening screw 802 corresponds to the direction to be rotated, which is convenient for engaging with the brick joint. At the same time, the side of the first locking ring 801 away from the locking steel bar 7 can be chamfered to form a blade shape that is convenient for cutting.

[0038] The locking member 8 includes a second locking ring 803, which includes a circle with an opening and cards connected to the two ends of the circular opening for inserting into the brick joints. The two cards are fixed by fastening screws 802; the outer side of the second locking ring 803 is also chamfered to form a blade shape that is convenient for cutting.

[0039] The strip steel plate 13 is provided with a steel plate through hole 14 for the locking steel bar 7 at the position corresponding to the locking steel bar 7. The connecting sleeve 11 is connected to the threaded section 9 and is passed through the steel plate through hole 14. The strip steel plate 13 is squeezed between the existing masonry wall 5 and the fixed square head 10; the fixed square head 10 is provided with a positioning rod insertion hole 12 running through it from top to bottom, and a positioning ring 15 is provided on the side of the strip steel plate 13 away from the existing masonry wall 5. The positioning rod insertion hole 12 and the positioning ring 15 are both connected with a vertically arranged positioning rod 16. The fixed square head 10, the positioning ring 15 and the positioning rod 16 are generally made of steel.

[0040] The fixing structure includes a U-shaped positioning member 21, which includes a U-shaped portion passed by the locking steel bar 7, and fixing plates arranged on both sides of the open end of the U-shaped portion and welded to the vertically arranged steel columns 6; the U-shaped portion of the U-shaped positioning member 21 is clamped with the U-shaped clamping member 22, and the U-shaped clamping member 22 includes a positioning plate that is tightly attached to the side of the U-shaped positioning member 21 away from the existing masonry wall 5, and an arc groove that matches the shape of the locking steel bar 7 is provided on the positioning plate. Two long strips that are inserted into the inner wall of the U-shaped portion are arranged at a distance on one side of the positioning plate. The locking steel bar 7 passes through the two long strips, and a second gasket 23 is sleeved on the passing portion. The threaded section 9 of the passing portion is threadedly connected to the nut 24. The second gasket 23 is extruded between the nut 24 and the positioning plate, and a first gasket 20 is extruded between the U-shaped positioning member 21 and the existing masonry wall 5.

[0041] A strip steel plate 13 and a corresponding steel column 6 form a group. A strip steel plate 13 is connected to at least three locking steel bars 7. Two of the three locking steel bars 7 are respectively fixed to both sides of the steel column 6 by a fixed structure, and the fixed square head 10 connected to the two locking steel bars 7 is located near one end of the strip steel plate 13. The third locking steel bar 7 is located between the above-mentioned two locking steel bars 7. The fixed square head 10 connected to one end of the third locking steel bar 7 is located between the existing masonry wall 5 and the steel column 6. The other end of the third locking steel bar 7 passes through the corresponding steel plate through hole 14 and is connected to the wall fastener 17. The wall fastener 17 can be a fixing ring that is clamped or welded to the locking steel bar 7, and can be threadedly connected to the corresponding threaded segment 9 using a nut; multiple locking steel bars 7 can be provided for plugging into the hook 19 on the steel column 6.

[0042] The locking steel bars 7 are arranged corresponding to the brick joints 4 on the same layer. A hook 19 is provided on the side of the steel column 6 close to the existing masonry wall 5, which is plugged into the corresponding positioning rod socket 12. The hook 19 is L-shaped, with one section arranged horizontally and the other section arranged vertically. The vertically arranged part is plugged into the positioning rod socket 12, that is, it is plugged into the fixed square head 10 on the third locking steel bar 7. The side of the existing masonry wall 5 close to the strip steel plate 13 is painted with an exterior wall paint layer 18.

[0043] A construction method for a reinforcement device for protecting a brick wall comprises the following steps:

[0044] Step S1. Observe the brickwork position of the existing masonry wall 5 to be protected, determine the position of each adjacent vertical brick seam of each layer of brickwork and select a brickwork layer seam 3 to determine the jack position;

[0045] Step S2. The socket position determined in step S1 is opened to accommodate the locking steel bar 7 of the steel bar socket 804, and the locking member jack 805 for accommodating the locking member 8, the socket being perpendicular to the existing masonry wall 5 and passing through;

[0046] Step S3. Determine the position of the jack position in the upper brick layer 1 and the lower brick layer 2 in the adjacent vertical brick joints, and then determine the number and installation position of the locking members 8, and then install the locking members 8 on the locking steel bar 7, so that all the locking members 8 are located on the same surface;

[0047] Step S4. Insert the locking steel bar 7 with the locking piece 8 into the steel bar insertion hole 804 and the locking piece insertion hole 805 in step S2. When inserting, keep the locking piece 8 horizontal until each locking piece 8 corresponds to the position of the adjacent vertical brick joints, that is, between the upper brick 1 and the lower brick 2, while ensuring that the threaded sections 9 at both ends of the locking steel bar 7 protrude from the two ends of the existing wall 5; then rotate the locking steel bar 7 to rotate the locking piece 8 to the adjacent vertical brick joints of the upper brick 1 or the adjacent vertical brick joints of the lower brick 2, or both. between the adjacent vertical brick joints of the upper brick layer 1 and the lower brick layer 2; when the first locking ring 801 is selected, the locking member 8 is simultaneously located between the adjacent vertical brick joints of the upper brick layer 1 and the lower brick layer 2 after rotation; when the second locking ring 803 is selected, the locking member 8 is located between the adjacent vertical brick joints of the upper brick layer 1 or between the adjacent vertical brick joints of the lower brick layer 2 after rotation. The length of the first locking ring 801 and the second locking ring 802 is selected according to actual conditions, and the length can be selected to extend to more than one layer of upper brick layer 1 and lower brick layer 2 after rotation;

[0048] S5. After the position of the locking reinforcement 7 and the locking member 8 is determined, the adhesive is injected into the socket to enhance the connection strength of the locking reinforcement 7 and the locking member 8 with the existing masonry wall 5;

[0049] S6. On the outdoor side of the existing masonry wall 5, the steel plate through-hole 14 on the strip steel plate 13 is put on the connecting sleeve 11, and then the connecting sleeve 11 is threadedly connected to the corresponding threaded segment 9. Then, several positioning rods 16 are respectively inserted into the positioning rod insertion holes 12 and the positioning ring 15. The locking steel bar 7 located on the outdoor side of the existing masonry wall 5 and without the fixed square head 10 is connected to the wall fastener 17 through the threaded segment 9. The wall fastener 17 and the existing masonry wall 5 are squeezed against each other; then, on the indoor side of the existing masonry wall 5, the threaded segment 9 at the hook 19 on the corresponding steel column 6 is screwed onto the fixed square head 10, and then the steel column 6 is lifted so that the hook 19 is plugged into the corresponding positioning rod insertion hole 12, and then the same The two first gaskets 20 and the two U-shaped positioning pieces 21 of the group are put on the corresponding locking steel bars 7, the long strip of the U-shaped clip 22 is inserted into the U-shaped part, and the locking steel bar 7 is pressed against the bottom end of the U-shaped part. Then the second gasket 23 is put on the locking steel bar 7, the nut 24 is screwed on, and finally the U-shaped positioning piece 21 is welded to the side of the steel column 6. A set of locking structure and fixing structure are installed. If the same steel column 6 corresponds to multiple sets of locking structures and fixing structures, multiple sets of locking steel bars 7 are installed in advance along the height direction of the steel column 6 before hoisting the steel column 6; there are at least three sockets corresponding to one steel column 6, and the sockets on both sides of the three sockets are respectively located on the corresponding two sides of the steel column 6, and one is located in the middle of the steel column 6.

[0050] The bricklaying joints 3 correspond to several groups of vertical bricks along the direction perpendicular to the existing wall 5. Among these groups of vertical bricks, the group of vertical bricks with the most adjacent vertical brick joints and that can cooperate with other socket positions is determined as the vertical bricks that need to be clamped into the locking piece 8, and cooperates with other socket positions, that is, the positions of multiple locking steel bars 7 in the same group are set to correspond to the two sides of the steel column 6, and the hooks 19 between the two sides correspond. There is only one locking steel bar 7 between the locking steel bars 7 on both sides, which generally corresponds to the middle of the steel column 6. If there are multiple ones, they are generally arranged at equal distances. Determining the maximum number of adjacent vertical brick joints mainly requires considering the arrangement of bricks. The same arrangement method means that the length and width of bricks on the same horizontal plane and the same vertical existing wall 5 direction are placed in the same direction, and the width of the bricks is set in the direction perpendicular to the existing wall 5. In this way, there are more adjacent vertical brick joints in a group of vertical bricks. At the same time, try to choose bricks with the same arrangement method in large quantities, such as multiple vertical bricks are all the same. Figure 1 The arrangement shown in the figure is chosen to make the spacing between multiple locking parts similar and have better stability, but it is selected in conjunction with other jack positions, and cannot be selected just for a certain position on the layer with the most adjacent vertical brick joints.

[0051] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A reinforcement device for protecting a brick wall, characterized by: The invention comprises a locking steel bar (7) for penetrating a brick joint (4) of the same layer of an existing masonry wall (5), a locking structure located on one side of the existing masonry wall (5) and fixed to the locking steel bar (7), and a fixing structure located on the other side of the existing masonry wall (5) and connected to the locking steel bar (7) to fix its position; a locking member (8) is provided on the locking steel bar (7) and is engaged with the adjacent vertical brick joint after the locking steel bar rotates; and the locking structure comprises a strip steel plate (13) connected to one end of the locking steel bar (7) and arranged closely to the existing masonry wall (5).

2. A reinforcement device for protecting a brick wall according to claim 1, characterized in that: The two ends of the locking steel bar (7) are respectively provided with threaded sections (9), and the locking members (8) are provided corresponding to the adjacent vertical brick joints on the existing masonry wall (5); the locking structure further comprises a connecting sleeve (11) threadedly connected to the threaded section (9), and the connecting sleeve (11) is fixedly connected to the fixed square head (10).

3. A reinforcement device for protecting a brick wall according to claim 2, characterized in that: The locking member (8) comprises two symmetrical first locking rings (801), the middle portions of the first locking rings (801) being bent into a semicircle, and the middle portions of the two first locking rings (801) being engaged with the locking steel bar (7), and the upper and lower portions of the two first locking rings (801) being fixedly connected by fastening screws (802) respectively.

4. A reinforcement device for protecting a brick wall according to claim 2, characterized in that: The locking member (8) comprises a second locking ring (803), which comprises a circle with an opening and cards connected to both ends of the circular opening for locking into the brick joints, and the two cards are fixed by fastening screws (802).

5. A reinforcement device for protecting a brick wall according to claim 3 or 4, characterized in that: A steel plate through hole (14) for the strip steel plate (13) to pass through is provided at a position corresponding to the locking steel bar (7). The connecting sleeve (11) is connected to the threaded section (9) and then passed through the steel plate through hole (14). The strip steel plate (13) is squeezed and set between the existing masonry wall (5) and the fixed square head (10). A positioning rod insertion hole (12) passing through the fixed square head (10) is provided, and a positioning ring (15) is provided on the side of the strip steel plate (13) away from the existing masonry wall (5). The positioning rod insertion hole (12) and the positioning ring (15) are both plugged with a vertically arranged positioning rod (16).

6. The reinforcement device for protecting a brick wall according to claim 5, characterized in that: The fixing structure comprises a U-shaped positioning member (21), the U-shaped positioning member (21) comprising a U-shaped portion passed through by the locking steel bar (7), and a fixing plate arranged on both sides of the open end of the U-shaped portion and welded to the vertically arranged steel column (6); the U-shaped portion of the U-shaped positioning member (21) is clamped with the U-shaped clamping member (22), the U-shaped clamping member (22) comprises a positioning plate tightly attached to the side of the U-shaped positioning member (21) away from the existing masonry wall (5), an arc groove matching the shape of the locking steel bar (7) is provided on the positioning plate, two long strips are arranged at a distance on one side of the positioning plate and are clamped into the inner wall of the U-shaped portion, the locking steel bar (7) passes through the two long strips, and a second gasket (23) is sleeved on the passing portion, the threaded section (9) of the passing portion is threadedly connected to the nut (24), the second gasket (23) is extruded and arranged between the nut (24) and the positioning plate, and a first gasket (20) is extruded and arranged between the U-shaped positioning member (21) and the existing masonry wall (5).

7. A reinforcement device for protecting a brick wall according to claim 6, characterized in that: A strip steel plate (13) and a corresponding steel column (6) form a group. A strip steel plate (13) is connected to at least three locking steel bars (7). Two of the three locking steel bars (7) are fixed to both sides of the steel column (6) by a fixed structure, and the fixed square head (10) connected to the two locking steel bars (7) is located near one end of the strip steel plate (13). The third locking steel bar (7) is located between the above two locking steel bars (7). The fixed square head (10) connected to one end of the third locking steel bar (7) is located between the existing masonry wall (5) and the steel column (6). The other end of the third locking steel bar (7) passes through the corresponding steel plate through hole (14) and is connected to the wall fastener (17).

8. The reinforcement device for protecting a brick wall according to claim 7, characterized in that: The locking steel bar (7) is provided corresponding to the brick joint (4) of the same layer, and a hook (19) connected to the corresponding positioning rod socket (12) is provided on a side of the steel column (6) close to the existing masonry wall (5).

9. A construction method using a reinforcement device for protecting a brick wall according to any one of claims 1 to 8, comprising the following steps: Step S1. Observe the brickwork position of the existing masonry wall (5) to be protected, determine the position of each adjacent vertical brick seam of each layer of brickwork and select a brickwork layer seam (3) to determine the jack position; Step S2. A steel bar socket (804) for accommodating the locking steel bar (7) and a locking member socket (805) for accommodating the locking member (8) are opened at the socket position determined in step S1, wherein the socket is perpendicular to and penetrates the existing masonry wall (5); Step S3. Determine the position of the adjacent vertical brick joints in the upper brickwork (1) and the lower brickwork (2) at the insertion position, and then determine the number of locking members (8) and the positions to be installed, and then install the locking members (8) on the locking steel bars (7) so that all the locking members (8) are located on the same surface; Step S4. Insert the locking steel bar (7) with the locking piece (8) into the steel bar insertion hole (804) and the locking piece insertion hole (805) in step S (2), and keep the locking piece (8) horizontal during insertion until each locking piece (8) corresponds to the position of the adjacent vertical brick joints, and at the same time ensure that the threaded sections (9) at both ends of the locking steel bar (7) protrude from both ends of the existing masonry wall (5); then rotate the locking steel bar (7) so that the locking piece (8) is rotated to between the adjacent vertical brick joints of the upper brick layer (1) or between the adjacent vertical brick joints of the lower brick layer (2), or is located between the adjacent vertical brick joints of the upper brick layer (1) and the lower brick layer (2); S5. After the positions of the locking steel bars (7) and the locking member (8) are determined, an adhesive is injected into the socket to enhance the connection strength between the locking steel bars (7) and the locking member (8) and the existing masonry wall (5); S6. On the outdoor side of the existing masonry wall (5), the steel plate through hole (14) on the strip steel plate (13) is put on the connecting sleeve (11), and then the connecting sleeve (11) is threadedly connected to the corresponding threaded section (9), and then a plurality of positioning rods (16) are respectively inserted into the positioning rod insertion hole (12) and the positioning ring (15), and the locking steel bar (7) located on the outdoor side of the existing masonry wall (5) and without the fixed square head (10) is connected to the wall fastener (17) through the threaded section (9), and the wall fastener (17) and the existing masonry wall (5) are squeezed against each other; then on the indoor side of the existing masonry wall (5), the threaded section (9) at the hook (19) on the corresponding steel column (6) is screwed onto the fixed square head (10), and then Lift the steel column (6) so that the hook (19) is plugged into the corresponding positioning rod socket (12), and then put the two first gaskets (20) and two U-shaped positioning pieces (21) of the same group on the corresponding locking steel bars (7), and insert the long strip of the U-shaped clamp (22) into the U-shaped part, and place the locking steel bar (7) against the bottom end of the U-shaped part, and then put the second gasket (23) on the locking steel bar (7), screw on the nut (24), and finally weld the U-shaped positioning piece (21) to the side of the steel column (6). A set of locking structure and fixed structure are installed. If the same steel column (6) corresponds to multiple sets of locking structures and fixed structures, multiple sets of locking steel bars (7) are pre-installed along the height direction of the steel column (6) before hoisting the steel column (6).

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