Method for reinforcing arc-shaped beam of outer wall of old masonry building

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Through the reinforcement method of the outer wall arc beam of the old masonry building, the problem of high construction difficulty and risk in existing technology, achieve higher safety and stability, reduce the difficulty of construction, and improve the accuracy of positioning accuracy sex.

CN119373336APending Publication Date: 2025-01-28ZHONGTIAN CONSTR GROUP

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Patent Information

Application Number: CN202411765923.6
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2024-12-04
Publication Date: 2025-01-28

AI Technical Summary

Technical Problem

In the prior art, there are high difficulties and risks in the construction of the root wall of the exterior wall of old masonry buildings, and as the wall demolition area increases, the safety and stability of the superstructure decreases.

Method used

Adopt the reinforcement method of the outer wall of the outer wall of the old masonry, including the infrastructure of measuring the line, the installation of the auxiliary positioning equipment, the arc -shaped beam steel plate infrastructure, the positioning and locking of the arc beam Basic reinforcement of walls and structural columns.

Benefits of technology

This method improves the safety and stability of construction, reduces the difficulty of construction, is more accurate and reliable in positioning, and reduces the vibration problem in the processing of curved steel plates.

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Abstract

The invention provides a method for reinforcing an arc-shaped beam of an outer wall of an old masonry building. The method comprises the following steps: surveying and setting out, and mounting surveying and positioning auxiliary equipment; constructing an arc-shaped beam steel plate foundation; the arc-shaped beam is mounted on the opposite side of the wall body after being placed and positioned, and is locked; arranging through-wall bolts for fixing and then pouring concrete; the lower wall body of the arc-shaped beam is dismantled; and reinforcing the structure column foundation. The auxiliary positioning device comprises a rotating rod, a mounting assembly and a locking and clamping mechanism. The vertical load is borne through the brick arch effect, the arc-shaped steel plates are arranged on the opposite sides of the wall body, the wall penetrating bolts are arranged for fastening, the wall body forms a brick arch within the arc-shaped reinforcing range, therefore, the upper wall body can be effectively supported, the construction process has higher safety, the paying-off accuracy can be ensured through the auxiliary positioning device, and the construction efficiency is improved. And the phenomenon of deviation caused by vibration of the arc-shaped steel plate can also be avoided, and it is ensured that the final installation position is completely aligned with the measuring and setting-out position.

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Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a method for reinforcing curved beams on the exterior walls of old masonry buildings. Background Art

[0002] The process of converting the wall to beam at the root of the exterior wall of an old masonry building can transform the originally built wall into the shape of a beam to improve the structural strength and bearing capacity of the entire building. This transformation method is often used in the maintenance or renovation of some old buildings. Its main purpose is to increase the stability and safety of the building while retaining the original architectural features. It can provide a more stable and solid building structure, and the cost of this reinforcement solution is low.

[0003] In the existing technology, the wall-to-beam replacement scheme at the base of the exterior wall of old masonry buildings requires direct destruction and demolition of the bottom wall part, so the construction is difficult and has certain risks. As the area of wall demolition increases, the safety and stability of the upper structure will decrease. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a method for reinforcing the curved beams of the exterior walls of old masonry buildings to solve the problems raised in the above-mentioned background technology. The present invention has higher safety, can provide a stable support effect, reduces the construction difficulty, and the positioning process is more accurate and reliable, thereby reducing the vibration problem in the processing of curved steel plates.

[0005] In order to achieve the above object, the present invention is implemented through the following technical scheme: a method for reinforcing an arc beam of an old masonry building exterior wall, comprising the following steps:

[0006] Step 1: Measure and lay out, and install measurement and positioning auxiliary equipment;

[0007] Step 2: Construction of curved beam steel plate foundation;

[0008] Step 3: After the arc beam is positioned, install it on the opposite side of the wall and lock it;

[0009] Step 4: Set through-wall bolts for fixing, and then pour concrete to form a stable curved beam;

[0010] Step 5: Remove the lower wall of the curved beam;

[0011] Step 6: Strengthen the structural column foundation.

[0012] Furthermore, in the step 1, the center point of the bottom of the structural column is first determined, and the positioning auxiliary equipment is inserted and fixed, and the positioning auxiliary equipment is used to perform marking processing.

[0013] Furthermore, in the step 2, the foundation is excavated at the lower part of the arc-shaped beam of the outer wall, and then relevant construction of foundation reinforcement is carried out, and supporting measures are taken when excavating the foundation to prevent collapse; in the step 3, the arc-shaped steel plate is supported from the bottom with the help of positioning auxiliary equipment, and the arc-shaped steel plate is installed on the opposite side of the wall, and through-wall bolts are set to firmly fix it.

[0014] Furthermore, the step five is used to provide sufficient working space for the steel column foundation, and the wall should be demolished in layers from top to bottom; the step six is to conduct detailed inspection and evaluation of the original condition of the structural column during the reinforcement process.

[0015] Furthermore, the following equipment is used in the fixing method: an auxiliary positioning device, an outer wall and a curved steel plate, the auxiliary positioning device includes a rotating rod, an installation assembly and a locking clamping mechanism, a structural column is arranged in the middle of the outer wall, a steel column foundation is arranged at the bottom of the outer wall, the curved steel plate is installed on both sides of the surface of the outer wall, a rotating sleeve is provided at the bottom of the rotating rod, and the rotating rod is movably connected to the installation assembly through the rotating sleeve, the installation assembly and the locking clamping mechanism are both against the surface of the outer wall, and through-wall bolts are inserted into the surface of the curved steel plate.

[0016] Furthermore, the mounting assembly includes a first base and a second base, and the first base and the second base both include a bottom plate and a bottom clamp, and positioning holes are opened on the surface of the bottom clamp, and a pin is inserted into the positioning hole of one of the bottom clamps, and a rotating column is welded to the outer side of each bottom clamp.

[0017] Furthermore, the rotating sleeve is sleeved on the surface of the rotating column, the bottom clamping plate and the bottom plate are integrally formed, the pins pass through the surface of the outer wall, and the number of the pins is two, and the two pins are symmetrically arranged on both sides of the structural column.

[0018] Furthermore, the locking and clamping mechanism includes a top plate and a top clamping plate, a threaded hole is opened on the surface of the top plate, and positioning columns are integrally formed at both ends of the top plate, and a supporting ring is sleeved on the side of each positioning column.

[0019] Furthermore, the support ring is used to position and support the inner circle part of the arc-shaped steel plate, a guide rod is welded on the surface of the top plate, a guide hole is opened on the surface of the top splint, and a locking screw is inserted into the surface of the top splint. The top of the top splint is integrated with a support frame, and the end of the support frame is integrated with a pressing plate.

[0020] Furthermore, the guide hole is sleeved on the surface of the guide rod, and the locking screw passes through the threaded hole on the surface of the top plate and the inside of the top clamp in sequence, and the pressing plate is used to press on the surface of the arc-shaped steel plate.

[0021] Beneficial effects of the present invention:

[0022] 1. The arc-shaped beam reinforcement method for the exterior wall of the old masonry building uses the brick arch effect to bear the vertical load. The arc-shaped steel plate is set on the opposite side of the wall and fastened with through-wall bolts to form a brick arch on the wall within the arc reinforcement range. Therefore, it can effectively support the upper wall and provide working space for the lower foundation construction. The entire construction process has higher safety, can provide a stable support effect, and reduces the difficulty of construction.

[0023] 2. In this reinforcement method, an auxiliary positioning device is used for the line-laying measurement process, so it can provide a more accurate positioning effect for the subsequent installation of the curved steel plate, ensure the accuracy of the line-laying, and control the error within the allowable range.

[0024] 3. When using the auxiliary positioning device to install the curved steel plate, the locking clamp on the top can directly press and lock each curved steel plate from multiple positions when inserting multiple through-wall bolts. The subsequent installation of the through-wall bolts can also avoid the vibration of the curved steel plate and cause the deviation, ensuring that the final installation position is completely aligned with the measured layout position. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a flow chart of the method for reinforcing the curved beams of the exterior wall of an old masonry building of the present invention;

[0026] Figure 2 The building structure diagram after the construction of the arc beam reinforcement method for the exterior wall of an old masonry building according to the present invention;

[0027] Figure 3 It is a schematic diagram of the appearance structure of the auxiliary device of the present invention;

[0028] Figure 4 It is a structural schematic diagram of the auxiliary positioning device part of the present invention;

[0029] Figure 5 This is a disassembled diagram of the installation component part of the auxiliary positioning device of the present invention;

[0030] Figure 6 This is a disassembled diagram of the locking and clamping mechanism in the auxiliary positioning device of the present invention;

[0031] In the figure: 1. outer wall; 2. curved steel plate; 3. steel column foundation; 4. structural column; 5. auxiliary positioning device; 6. rotating rod; 7. mounting assembly; 8. locking clamping mechanism; 9. first base; 10. second base; 11. bottom plate; 12. bottom clamping plate; 13. positioning hole; 14. pin; 15. rotating column; 16. rotating sleeve; 17. top plate; 18. threaded hole; 19. guide rod; 20. positioning column; 21. support collar; 22. top clamping plate; 23. guide hole; 24. locking screw; 25. support frame; 26. pressing plate; 27. through-wall bolt. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] See also Figures 1 to 6 The present invention provides the following technical solution: A method for reinforcing an arc-shaped beam on an exterior wall of an old masonry building, comprising the following steps:

[0034] Step 1: First determine the center point of the bottom of the structural column 4, insert and fix the positioning auxiliary equipment, and use the positioning auxiliary equipment to mark the line;

[0035] Step 2: Construction of curved beam steel plate foundation: dig out the foundation part at the bottom of the curved beam of the outer wall, and then carry out related construction of foundation reinforcement. Take support measures when digging the foundation to prevent collapse. The foundation reinforcement construction should be carried out strictly in accordance with the design requirements, and select qualified materials;

[0036] Step 3: After the arc beam is positioned, it is installed on the opposite side of the wall and locked. The arc steel plate 2 is supported from the bottom by positioning auxiliary equipment, and the arc steel plate 2 is installed on the opposite side of the wall. At the same time, through-wall bolts 27 are set to firmly fix it.

[0037] Step 4: Set the through-wall bolts 27 for fixing, and then pour concrete to form a stable arc beam. The installation position and angle of the arc steel plate 2 must be accurate, and the through-wall bolts 27 must be tightened to ensure the reliability of the connection. When pouring concrete, pay attention to vibrating and compacting to avoid quality problems such as honeycomb surface;

[0038] Step 5: Remove the lower wall of the curved beam to provide sufficient working space for the steel column foundation 3. When removing the wall, the principle of layered removal from top to bottom should be followed, and protective measures should be taken to prevent damage to the surrounding structure.

[0039] Step 6: Strengthen the foundation of the structural column 4. During the reinforcement process, the original condition of the structural column 4 is carefully inspected and evaluated, and a reasonable reinforcement plan is formulated according to the actual situation. During the construction process, the construction quality must be strictly controlled to ensure that the reinforced structural column 4 can meet the load-bearing requirements.

[0040] This reinforcement method utilizes the brick arch effect to bear the vertical load. An arc-shaped steel plate 2 is set on the opposite side of the wall and through-wall bolts 27 are set to fasten it, so that a brick arch is formed on the wall within the arc reinforcement range. Therefore, the upper wall can be effectively supported, and working space is provided for the lower foundation construction. The entire construction process has higher safety, can provide a stable support effect, and reduces the construction difficulty.

[0041] The equipment used in the above reinforcement method includes an auxiliary positioning device 5, an outer wall 1 and a curved steel plate 2. The auxiliary positioning device 5 includes a rotating rod 6, an installation component 7 and a locking clamping mechanism 8. A structural column 4 is arranged in the middle of the outer wall 1, and a steel column foundation 3 is arranged at the bottom of the outer wall 1. The curved steel plate 2 is installed on both sides of the surface of the outer wall 1. A rotating sleeve 16 is provided at the bottom of the rotating rod 6, and the rotating rod 6 is movably connected to the installation component 7 through the rotating sleeve 16. The installation component 7 and the locking clamping mechanism 8 are both against the surface of the outer wall 1. The surface of the curved steel plate 2 is interspersed with through-wall bolts 27. The auxiliary positioning device 5 is used for measuring the line-laying process, providing high-precision marking assistance, and providing additional positioning reinforcement processing when the curved steel plate 2 is subsequently installed.

[0042] In this embodiment, the installation assembly 7 includes a first base 9 and a second base 10, and the first base 9 and the second base 10 both include a bottom plate 11 and a bottom clamping plate 12. The surface of the bottom clamping plate 12 is provided with a positioning hole 13, and a pin 14 is inserted into the positioning hole 13 of one of the bottom clamping plates 12. A rotating column 15 is welded on the outer side of each bottom clamping plate 12. The rotating sleeve 16 is sleeved on the surface of the rotating column 15, and the bottom clamping plate 12 and the bottom plate 11 are integrally formed. The pin 14 passes through the surface of the outer wall 1, and the number of the pins 14 is two, and the two pins 14 are symmetrically arranged on both sides of the structural column 4. The auxiliary positioning device 5 is used for the line-laying measurement process, so that a more accurate positioning effect can be provided for the subsequent installation of the curved steel plate 2, and the accuracy of the line-laying can be ensured, so that the error is controlled within the allowable range.

[0043] Specifically, when in use, first place the first base 9 part against the surface of the outer wall 1, and embed the nail 14 into the two positioning holes 13 on the surface of the first base 9 through a hammering device. The device embeds the nail 14 into the wall and completes the penetration. At this time, the second base 10 part can be mounted on the nail 14 after penetration with the help of its positioning hole 13 and ensure that the bottom clamping plate 12 also rests against the opposite side of the outer wall 1. At this time, the rotating rod 6 can be controlled to drive the top locking clamping mechanism to rotate around the bottom rotating column 15, and the marking process is completed with the help of the positioning column 20 at the edge of the top plate 17. When the arc-shaped steel plate 2 is subsequently installed and constructed, the bottom of the arc-shaped steel plate 2 can be directly pressed against the locking clamping mechanism 8.

[0044] In this embodiment, the locking and clamping mechanism 8 includes a top plate 17 and a top clamping plate 22. The surface of the top plate 17 is provided with a threaded hole 18, and positioning columns 20 are integrally formed at both ends of the top plate 17. The sides of each positioning column 20 are sleeved with a support collar 21. The support collar 21 is used to position and support the inner ring part of the arc-shaped steel plate 2. The surface of the top plate 17 is welded with a guide rod 19. The surface of the top clamping plate 22 is provided with a guide hole 23. The surface of the top clamping plate 22 is also interspersed with a locking screw 24. The top of the top clamping plate 22 is integrally formed with a support frame 25, and the end of the support frame 25 is integrally formed with a pressing plate 26. The guide hole 23 is sleeved on the surface of the guide rod 19, and the locking screw 24 passes through the threaded hole 18 on the surface of the top plate 17 and the inside of the top clamping plate 22 in sequence. The pressing plate 26 is used to press on the surface of the arc-shaped steel plate 2. When installing the arc-shaped steel plate 2, the locking clamping mechanism 8 on the top can be used to press and lock each arc-shaped steel plate 2 from multiple positions when inserting multiple through-wall bolts 27. The subsequent installation of the through-wall bolts 27 can also avoid the vibration of the arc-shaped steel plate 2 and cause deviation, ensuring that the final installation position is completely aligned with the measured layout position.

[0045] Specifically, after completing the preliminary laying-out process and pressing the bottom of the arc-shaped steel plate 2 against the locking clamping mechanism 8, multiple locking screws 24 are used at this time, and the top clamping plate 22 is driven toward the surface of the top plate 17 by rotating the locking screws 24, and then the surface of the arc-shaped steel plate 2 is pressed with the help of the top support frame 25 and the pressing plate 26 at the end, ensuring that the arc-shaped steel plate 2 can be attached to the surface of the outer wall 1 with a higher pressure, and in this state, through-wall screws are used to pass through the surface of the arc-shaped steel plate 2 to realize the installation process of the arc-shaped steel plate 2. During the installation process, each through-wall screw can be inserted to ensure the fixing effect of the pressing plate 26 on the arc-shaped steel plate 2, thereby avoiding the situation in which the arc-shaped steel plate 2 shakes and causes displacement during the process, and also ensuring that the side arc-shaped steel plates 2 always remain aligned.

[0046] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A method for reinforcing curved beams on the exterior walls of old masonry buildings, characterized in that: The following steps are involved: Step 1: Measure and lay out, and install measurement and positioning auxiliary equipment; Step 2: Construction of curved beam steel plate foundation; Step 3: After the arc beam is positioned, install it on the opposite side of the wall and lock it; Step 4: Set through-wall bolts for fixing, and then pour concrete to form a stable curved beam; Step 5: Remove the lower wall of the curved beam; Step 6: Strengthen the structural column foundation.

2. The method for reinforcing the curved beams of the exterior walls of old masonry buildings according to claim 1 is characterized in that: In the step 1, the center point position of the bottom of the structural column is first determined, and the positioning auxiliary equipment is inserted and fixed, and the positioning auxiliary equipment is used to perform marking processing.

3. The method for reinforcing the curved beams of the exterior walls of old masonry buildings according to claim 1 is characterized in that: In the step 2, the foundation is excavated at the lower part of the arc-shaped beam of the outer wall, and then relevant construction of foundation reinforcement is carried out. Support measures are taken when excavating the foundation to prevent collapse; in the step 3, the arc-shaped steel plate is supported from the bottom with the help of positioning auxiliary equipment, and the arc-shaped steel plate is installed on the opposite side of the wall, and through-wall bolts are set to firmly fix it.

4. The method for reinforcing the curved beams of the exterior walls of old masonry buildings according to claim 1 is characterized in that: The step five is used to provide sufficient working space for the steel column foundation, and the wall should be demolished in layers from top to bottom; the step six is to conduct detailed inspection and evaluation of the original condition of the structural column during the reinforcement process.

5. The method for reinforcing the curved beams of the exterior walls of old masonry buildings according to claim 1 is characterized in that: The following equipment is used in the fixing method: including an auxiliary positioning device, an outer wall and an arc-shaped steel plate, the auxiliary positioning device including a rotating rod, a mounting assembly and a locking clamping mechanism, a structural column is arranged in the middle of the outer wall, a steel column foundation is arranged at the bottom of the outer wall, the arc-shaped steel plate is installed on both sides of the surface of the outer wall, a rotating sleeve is provided at the bottom of the rotating rod, and the rotating rod is movably connected to the mounting assembly through the rotating sleeve, the mounting assembly and the locking clamping mechanism are both against the surface of the outer wall, and through-wall bolts are inserted into the surface of the arc-shaped steel plate.

6. The method for reinforcing the curved beams of the exterior walls of old masonry buildings according to claim 5 is characterized in that: The mounting assembly includes a first base and a second base, and the first base and the second base both include a bottom plate and a bottom clamp. Positioning holes are opened on the surface of the bottom clamp, and a pin is inserted into the positioning hole of one of the bottom clamps. A rotating column is welded on the outer side of each bottom clamp.

7. The method for reinforcing the curved beams of the exterior walls of old masonry buildings according to claim 6 is characterized by: The rotating sleeve is sleeved on the surface of the rotating column, the bottom clamping plate and the bottom plate are integrally formed, the pins pass through the surface of the outer wall, and the number of the pins is two, and the two pins are symmetrically arranged on both sides of the structural column.

8. The method for reinforcing the curved beams of the exterior walls of old masonry buildings according to claim 5 is characterized by: The locking and clamping mechanism comprises a top plate and a top clamping plate. The surface of the top plate is provided with threaded holes, and positioning columns are integrally formed at both ends of the top plate. The side of each positioning column is sleeved with a supporting collar.

9. The method for reinforcing the curved beams of the exterior walls of old masonry buildings according to claim 8, characterized in that: The support collar is used to position and support the inner circle of the arc-shaped steel plate. A guide rod is welded on the surface of the top plate, a guide hole is opened on the surface of the top splint, and a locking screw is inserted into the surface of the top splint. The top of the top splint is integrated with a support frame, and the end of the support frame is integrated with a pressing plate.

10. The method for reinforcing the curved beams of the exterior wall of an old masonry building according to claim 9, characterized in that: The guide hole is sleeved on the surface of the guide rod, and the locking screw passes through the threaded hole on the surface of the top plate and the inside of the top clamping plate in sequence. The pressing plate is used to press on the surface of the arc-shaped steel plate.