Replaceable coupling beam energy dissipation structure convenient to repair

Abstract

The application belongs to the technical field of structural seismic resistance, and particularly relates to a replaceable coupling beam energy dissipation structure convenient to repair, which comprises: steel deep beams embedded in wall limbs, and a energy dissipation beam section detachably connected between the two steel deep beams; the steel deep beam comprises a buried fixing assembly and a fixed end face, the fixed end face is fixedly connected to one end of the buried fixing assembly, two rows of first long circular holes for the second bolts to pass through are formed in the fixed end face, the two rows of first long circular holes are symmetrically arranged, and the end of the energy dissipation beam section is fixedly connected to the fixed end face through the second bolts; the size of the first long circular hole is larger than the diameter of the second bolt. The application is based on a new concept of ductile building structure recovery that can be imperfectly repaired, can remove and replace the damaged energy dissipation beam section in a short time after the earthquake, can restore the building seismic resistance function in a short time before the aftershock, can improve the urban resilience through the rapid repair of the building group, can reduce the repair cost, can also be perfectly repaired on the basis of imperfect repair, and can completely restore the building bearing capacity.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of structural seismic resistance, and particularly relates to a replaceable coupling beam energy dissipation structure convenient to repair. BACKGROUND

[0002] Traditional engineering structural seismic resistance design is mainly collapse resistance design to prevent structural collapse and casualties under strong earthquakes. However, with the development of social economy, high-rise buildings and important buildings are increasing, and the simple collapse resistance design cannot meet the needs, and the difficulty and cost of structural repair after damage under earthquake action increase.

[0003] When an earthquake disaster occurs in a city, various buildings need to be repaired as soon as possible to restore the basic functions of the city as soon as possible, and at the same time, greater losses caused by aftershocks are avoided. However, building restoration is extremely difficult, and requires overall planning and scheduling of many resources. The repair strategy is important for the evaluation of seismic resilience. According to the priority and repair degree of building repair, we believe that building repair can be divided into "perfect repair" and "imperfect repair". For example, hospitals, water plants and power plants need to be repaired perfectly to restore operation as soon as possible and to avoid further damage. For buildings for storing materials, the structural repair strategy can be relatively simple, that is, imperfect repair, which can ensure that the building does not collapse.

[0004] The realization of "perfect repair" and "imperfect repair" of buildings depends on the difficulty and efficiency of the repairable part of the building.

[0005] Among the four structural systems of high-rise buildings, shear wall structures and frame-shear wall structures have good lateral stiffness and bearing capacity, and are widely used in the engineering field. The coupling beam between the wall limbs is the main energy dissipation component of the structure.

[0006] At present, high-rise shear wall structures can achieve the design goal of "not collapsing under strong earthquakes", but there is a situation of great difficulty in post-earthquake repair and long repair time. In order to realize the rapid recovery of building functions after an earthquake, we propose a replaceable coupling beam energy dissipation structure to solve the above problems. SUMMARY

[0007] The purpose of the application is to provide a replaceable coupling beam energy dissipation structure convenient to repair to solve the above problems.

[0008] To achieve the above purpose, the application provides the following scheme:

[0009] A replaceable coupling beam energy dissipation structure convenient to repair, comprising: a steel deep beam embedded in a wall limb, and a energy dissipation beam segment detachably connected between two steel deep beams.

[0010] The steel deep beam comprises a buried fixing assembly and a fixed end face, the fixed end face is fixed at one end of the buried fixing assembly, two rows of first long circular holes for the second bolts to pass through are arranged on the fixed end face, and the two rows of first long circular holes are symmetrically arranged.

[0011] The size of the first long circular hole is larger than the diameter of the second bolt.

[0012] Preferably, the buried fixing assembly comprises a horizontal I-shaped steel, one end of the horizontal I-shaped steel is embedded in a wall limb, and the other end of the horizontal I-shaped steel is fixedly connected with the fixed end face.

[0013] Preferably, a plurality of first vertical stiffening ribs are fixedly connected to the middle part of the horizontal I-shaped steel, and the first vertical stiffening ribs located on the front and back sides of the horizontal I-shaped steel are symmetrically arranged.

[0014] Preferably, one end of a horizontal stiffening rib is fixedly connected to the top and bottom of the front and back sides of the fixed end face, respectively, and the other end of the horizontal stiffening rib is fixedly connected to the side wall of the corresponding first vertical stiffening rib.

[0015] Preferably, the energy dissipation beam section comprises an energy dissipation I-shaped steel, and a connecting end face is fixedly connected to each end of the energy dissipation I-shaped steel, a plurality of second long circular holes are arranged on the connecting end face, the second long circular holes correspond to the first long circular holes in one-to-one correspondence, and the second long circular holes and the first long circular holes are the same in structure.

[0016] Preferably, a plurality of second vertical stiffening ribs are fixedly connected to the front and back sides of the energy dissipation I-shaped steel, respectively, and the second vertical stiffening ribs on the front and back sides are symmetrically arranged.

[0017] Preferably, one end of a shear force plate is fixedly connected to the horizontal stiffening rib, and the other end of the shear force plate is fixedly connected to the end of the energy dissipation I-shaped steel.

[0018] Compared with the prior art, the present application has the following advantages and technical effects:

[0019] In use, the steel deep beam is fixedly connected with the steel bars in the wall limb, and then concrete is poured, and the wall limb is formed after the concrete is solidified, at this time, the steel deep beam is firmly embedded in the wall limb, the energy dissipation beam segment is installed between the two adjacent steel deep beams, the fixed end surface of the steel deep beam and the end of the energy dissipation beam segment are fixedly connected through a plurality of second bolts, the first long circular hole for the second bolt to pass through is formed on the fixed end surface, the size of the first long circular hole is larger than the diameter of the second bolt, and a margin is left for the movement of the second bolt, before the earthquake occurs, the second bolt is screwed between the fixed end surface and the end of the energy dissipation beam segment to form extrusion and generate friction force, so that the fixed end surface and the energy dissipation beam segment are fixedly connected, and when the earthquake occurs, the energy dissipation beam segment deforms first to consume seismic energy under the action of the earthquake, and the second bolt also deforms under the action of the shear force, the axial tension or the pressure, so that the end of the energy dissipation beam segment and the fixed end surface are loose, the first long circular hole is arranged to reduce the stress between the second bolt and the first long circular hole when the earthquake occurs, the fixed end surface can be prevented from being damaged, and the energy dissipation beam segment can absorb most of the seismic energy, after the earthquake ends, since the fixed end surface is not damaged and the second bolt used for fixed connection is loose, the damaged energy dissipation beam segment can be conveniently removed and replaced with a new energy dissipation beam segment, based on the new concept of building structure recovery based on imperfect repair, the building seismic function can be recovered in a short time before the aftershock, the repair efficiency is ensured, and the repair cost is reduced, when the repair time is available, perfect repair can be performed on the basis of the imperfect repair, and the building bearing capacity is completely recovered. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor:

[0021] Figure 1 It is a structural schematic diagram of the present application;

[0022] Figure 2 It is an exploded view of the structure of the present application;

[0023] Figure 3 It is a structural schematic diagram of the steel deep beam of the present application;

[0024] Figure 4 It is a structural schematic diagram of the energy dissipation beam segment of the present application;

[0025] Figure 5 It is a structural schematic diagram of the second bolt of embodiment 2 of the present application;

[0026] Wherein, 1, steel deep beam; 2, energy dissipation beam section; 3, shear force plate; 4, first bolt; 5, second bolt; 101, horizontal I-beam; 102, fixed end surface; 103, horizontal stiffening rib; 104, first round hole; 105, first oblong hole; 106, first vertical stiffening rib; 201, energy dissipation I-beam; 202, connecting end surface; 203, second oblong hole; 204, second round hole; 205, second vertical stiffening rib; 501, bolt body; 502, first gasket; 503, threaded slot; 504, threaded column; 505, expanded metal column; 506, second gasket; 507, nut; 508, cover; 509, torsional shear fracture column; 510, spline groove; 511, hot melt grease; 512, leakage hole; 513, cavity. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0028] In order to make the above objectives, characteristics and advantages of the present application more apparent, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0029] Embodiment 1

[0030] Reference Figures 1 to 4 The present embodiment discloses a replaceable coupling beam energy dissipation structure convenient to repair, comprising: a steel deep beam 1 embedded in a wall limb, and an energy dissipation beam section 2 detachably connected between two steel deep beams 1.

[0031] The steel deep beam 1 comprises a buried fixing assembly and a fixed end surface 102, the fixed end surface 102 is fixedly connected to one end of the buried fixing assembly, and two rows of first oblong holes 105 for the second bolt 5 to pass through are formed on the fixed end surface 102, the two rows of first oblong holes 105 are symmetrically arranged, and the end portion of the energy dissipation beam section 2 is fixedly connected to the fixed end surface 102 through the second bolt 5.

[0032] The size of the first oblong hole 105 is greater than the diameter of the second bolt 5.

[0033] In use, the steel deep beam 1 is fixedly connected with the steel bars in the wall limb, and then the concrete is poured, and the wall limb is formed after the concrete is solidified, at this time, the steel deep beam 1 is firmly embedded in the wall limb, the energy dissipation beam section 2 is installed between the two adjacent steel deep beams 1, the fixed end surface 102 of the steel deep beam 1 and the end of the energy dissipation beam section 2 are fixedly connected through a plurality of second bolts 5, the first long circular hole 105 for the second bolt 5 to pass through is formed on the fixed end surface 102, the size of the first long circular hole 105 is larger than the diameter of the second bolt 5, and a margin is left for the movement of the second bolt 5, before the earthquake occurs, the second bolt 5 is screwed between the fixed end surface 102 and the end of the energy dissipation beam section 2 to form extrusion and generate friction force, so that the fixed end surface 102 and the energy dissipation beam section 2 are fixedly connected, and when the earthquake occurs, the energy dissipation beam section 2 is deformed under the action of the earthquake to dissipate the earthquake energy, and the second bolt 5 is also deformed under the action of the earthquake to generate shear force, axial tension or pressure, so that the end of the energy dissipation beam section 2 and the fixed end surface 102 are loose, the first long circular hole 105 is arranged to reduce the stress between the second bolt 5 and the first long circular hole 105 when the earthquake occurs, the fixed end surface 102 can be prevented from being damaged, the energy dissipation beam section 2 can absorb most of the earthquake energy, when the earthquake ends, the fixed end surface 102 is not damaged, and the second bolt 5 used for fixed connection is loose, so that the damaged energy dissipation beam section 2 can be conveniently removed and replaced with a new energy dissipation beam section 2, based on the new concept of building structure recovery of imperfect repair, the building seismic function can be restored in a short time before the aftershock, the repair efficiency is ensured, the repair cost is reduced, and perfect repair can be performed on the basis of imperfect repair when the repair time is available, and the building bearing capacity is completely restored.

[0034] Further optimization scheme, the embedded fixing assembly includes a horizontal I-shaped steel 101, one end of the horizontal I-shaped steel 101 is embedded in the wall limb, and the other end of the horizontal I-shaped steel 101 is fixedly connected with the fixed end surface 102.

[0035] Further optimization scheme, a plurality of first vertical stiffening ribs 106 are fixedly connected in the middle of the horizontal I-shaped steel 101, and the first vertical stiffening ribs 106 located on the front and back sides of the horizontal I-shaped steel 101 are symmetrically arranged.

[0036] The first vertical stiffening rib 106 is arranged to improve the strength of the horizontal I-shaped steel 101.

[0037] Further optimization scheme, one end of the horizontal stiffening rib 103 is fixedly connected with the top and the bottom of the front and back sides of the fixed end surface 102 respectively, and the other end of the horizontal stiffening rib 103 is fixedly connected with the side wall of the corresponding first vertical stiffening rib 106.

[0038] The horizontal stiffening rib 103 is arranged to further improve the firmness of the connection between the fixed end surface 102 and the horizontal I-shaped steel 101.

[0039] Further optimization scheme, the energy dissipation beam segment 2 includes energy dissipation I-beam 201, both ends of energy dissipation I-beam 201 are respectively fixedly connected with connecting end face 202, a plurality of second long circular holes 203 are formed on connecting end face 202, a plurality of second long circular holes 203 correspond to a plurality of first long circular holes 105 one by one, and the second long circular hole 203 and the first long circular hole 105 are the same in structure.

[0040] When the earthquake occurs, the energy dissipation I-beam 201 deforms first than the horizontal I-beam 101, and is used for seismic energy dissipation, the second long circular hole 203 and the first long circular hole 105 are the same in structure, and are used for providing a movement allowance for the second bolt 5.

[0041] Further optimization scheme, the energy dissipation I-beam 201 is respectively fixedly connected with a plurality of second vertical stiffening ribs 205 on the front and back sides, and the plurality of second vertical stiffening ribs 205 on the front and back sides are symmetrically arranged.

[0042] The second vertical stiffening rib 205 is used for improving the bearing strength of the energy dissipation I-beam 201.

[0043] Further optimization scheme, one end of the horizontal stiffening rib 103 is fixedly connected with the shear force plate 3, and the other end of the shear force plate 3 is fixedly connected with the end of the energy dissipation I-beam 201.

[0044] A plurality of first circular holes 104 are formed on the horizontal stiffening rib 103, a plurality of second circular holes 204 are respectively formed on the top and bottom flanges of the energy dissipation I-beam 201, the first circular hole 104 and the second circular hole 204 are used for the first bolt 4 to pass through, the end of the shear force plate 3 is respectively provided with a through hole corresponding to and matched with the plurality of first circular holes 104 and the plurality of second circular holes 204, the first bolt 4 is passed through the corresponding through hole, the first circular hole 104 and the second circular hole 204, and the first bolt 4 is tightened, and the shear force plate 3 is fixed with the corresponding horizontal stiffening rib 103 and energy dissipation I-beam 201.

[0045] The setting of the shear force plate 3 can prevent the second bolt 5 from shearing failure, reduce the slip between the fixed end face 102 and the connecting end face 202, and make the energy dissipation I-beam 201 more participate in seismic energy dissipation. The yield strength of the shear force plate 3 is greater than the yield strength of the energy dissipation beam segment 2 and less than the yield strength of the steel deep beam 1, and the shear force plate 3 can deform first than the steel deep beam 1.

[0046] Embodiment 2:

[0047] Reference Figure 5The difference between the embodiment and embodiment 1 is that the second bolt 5 comprises a bolt body 501, a nut 507 is threadedly connected on the bolt body 501, the first gasket 502 and the second gasket 506 are sleeved between the nut 507 and the end of the bolt body 501, a threaded groove hole 503 and a cavity 513 are arranged in the bolt body 501, the diameter of the cavity 513 is larger than that of the threaded groove hole 503, a threaded column 504 is threadedly connected in the threaded groove hole 503, one end of the threaded column 504 is coaxially fixedly connected with an expanded metal column 505, the expanded metal column 505 is arranged in the cavity 513, a gap is arranged between the outer wall of the expanded metal column 505 and the inner wall of the cavity 513, hot melt grease 511 is filled in the gap, a cover 508 is coaxially fixedly connected to the outer side of the expanded metal column 505, the cover 508 is used for plugging the cavity 513, a torsional shear fracture column 509 is coaxially fixedly connected to the end of the expanded metal column 505 away from the threaded column 504, a plurality of spline grooves 510 are arranged on the torsional shear fracture column 509, the plurality of spline grooves 510 are circumferentially and equally spaced, a plurality of leak holes 512 are arranged on the inner wall of the cavity 513 in a matrix manner, the plurality of leak holes 512 are circumferentially and equally spaced, and the thread direction in the threaded groove hole 503 is opposite to the thread direction on the outer wall of the bolt body 501.

[0048] In use, the fixed end surface 102 and the connecting end surface 202 are located between the first gasket 502 and the second gasket 506, the fixed end surface 102 and the connecting end surface 202 are clamped and fixed by rotating the nut 507.

[0049] The threaded groove hole 503 and the cavity 513 are arranged in the bolt body 501, the expanded metal column 505 is coaxially fixedly connected with the threaded column 504, the expanded metal column 505 is fixed by thread cooperation of the threaded column 504 and the threaded groove hole 503, the cavity 513 is filled with an appropriate amount of hot melt grease 511 before the expanded metal column 505 is inserted into the cavity 513, and then the threaded column 504 is screwed with the threaded groove hole 503, so that the cover 508 is plugged at the opening of the cavity 513.

[0050] The other end of the threaded column 504 is connected with the torsional shear fracture column 509, and a plurality of spline grooves 510 are arranged on the torsional shear fracture column 509.

[0051] When the second bolt 5 needs to be fastened, the second bolt 5 of the application is fastened by using an electric torsional shear wrench for fastening a torsional shear high-strength bolt, the thread direction in the threaded groove hole 503 is opposite to the thread direction on the outer wall of the bolt body 501, and the loosening of the threaded groove hole 503 and the threaded column 504 when the electric torsional shear wrench is used can be avoided.

[0052] After fastening is completed, the fixed connection between the steel deep beam 1 and the energy dissipation beam segment 2 is completed.

[0053] When an earthquake occurs, the second bolt 5 will deform under the action of the earthquake, the bolt body 501 and the expanded metal column 505 will heat under the action of the deformation, the heat will melt the hot melt lubricating grease 511, when the expanded metal column 505 is heated and expanded, the expansion degree is higher than that of the bolt body 501, so that the melted hot melt lubricating grease 511 is penetrated from the several leakage holes 512 on the inner wall of the cavity 513 to the threads on the outer wall of the bolt body 501, so as to lubricate and facilitate the rotation of the nut 507. Further, after the earthquake occurs, when the energy-consuming beam section 2 needs to be replaced quickly, the nut 507 and the bolt body 501 are easily rotated relative to each other, and the replacement efficiency is improved.

[0054] The advantages of the non-perfect replacement strategy of the replaceable coupling beam designed by the application are as follows:

[0055] 1. First of all, it is ensured that the "non-perfect replacement" meets the structural design specifications of China, ensuring the stability of the structure.

[0056] 2. The non-perfect replacement coupling beam can provide more efficient recovery and repair strategies for the entire city or building group range after the earthquake, and contribute to the evaluation of urban seismic resilience.

[0057] 3. When the post-earthquake recovery is basically completed, these non-perfectly repaired components can be perfectly repaired.

[0058] 4. The earthquake itself is a once-in-a-century event, and after experiencing a major earthquake, there is little probability of another major earthquake occurring at the end of the structure's service life (extremely low probability). Therefore, for low seismic fortification building areas that have experienced a major earthquake, perfect repair is wasteful, and non-perfect repair is a very economical and reasonable repair strategy.

[0059] Non-perfect repair concept description:

[0060] 1. Macro concept: Non-perfect repair is a new concept for post-earthquake urban building structure recovery. It recognizes that after a large-scale disaster, resources are limited, and not all buildings need or deserve perfect repair.

[0061] 2. Resource planning: This strategy requires effective planning and scheduling of resources to determine which building structures should be immediately restored to ensure key services, and which can use more economical repair methods.

[0062] 3. Building classification: Key buildings (such as hospitals, water plants, power plants) need to be perfectly repaired as soon as possible to avoid further damage and ensure their normal operation, and even serve as temporary command centers during disasters; secondary buildings such as temporary accommodation buildings or buildings for storing materials and property may only need to ensure that the structure is basically stable and does not collapse under aftershocks.

[0063] Advantages of the imperfect repair strategy:

[0064] 1. Specification compliance and safety assurance: The imperfect repair strategy strictly adheres to the national building structure design specifications, ensuring that even under imperfect repair conditions, the building structure can maintain its basic stability and safety, meeting the minimum safety usage standards.

[0065] 2. Resource optimization and efficient recovery: This strategy allows for the rapid identification of key infrastructure after an earthquake and prioritizes perfect repair, while other buildings are subjected to imperfect repair, thereby optimizing the allocation of human resources and materials and restoring the basic operational functions of the city in the shortest time.

[0066] 3. Phased repair and long-term planning: The imperfect repair strategy provides a phased repair plan, allowing for the rapid restoration of the basic functions of buildings in the early post-earthquake period, and further perfect repair of these structures in the later period according to urban planning and resource conditions.

[0067] 4. Economic rationality and cost-effectiveness: Considering the low probability of earthquakes and the particularity of certain regions, imperfect repair avoids unnecessary long-term over-investment in buildings, providing an economically rational repair strategy from the perspective of life-cycle cost.

[0068] 5. Risk assessment and adaptability: Based on detailed assessment of building importance and seismic risk, the strategy provides customized repair solutions for different buildings, enhancing the adaptability of building structures to seismic risk.

[0069] 6. Long-term perspective and sustainable development: The imperfect repair strategy takes into account the probability of seismic activity and the service life of buildings, reducing preventive investment for future disasters that are unlikely to occur, and aligning with the concept of sustainable development.

[0070] 7. City resilience and functional continuity: Through the imperfect repair strategy, the city can quickly restore key functions after an earthquake, enhancing the city's resilience to disasters and ensuring the continuity of city operations.

[0071] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present invention.

[0072] The above described embodiments are only to illustrate the preferred modes of the present application, and are not intended to limit the scope of the present application. Any modification and improvement made by those skilled in the art to the technical solutions of the present application without departing from the design spirit of the present application shall fall within the protection scope of the present application.

Claims

1. A replaceable coupling beam energy dissipation structure facilitating repair, comprising: Steel deep beams (1) embedded in the wall limb, two said steel deep beams (1) between the detachable connection energy beam section (2); The steel deep beam (1) includes a buried fixing assembly and a fixed end face (102), the fixed end face (102) is fixed at one end of the buried fixing assembly, two rows of first long circular holes (105) for the second bolt (5) to pass through are arranged on the fixed end face (102), and the two rows of first long circular holes (105) are symmetrically arranged. The end of the energy beam section (2) is fixed to the fixed end face (102) by the second bolt (5). The size of the first long circular hole (105) is greater than the diameter of the second bolt (5). The second bolt (5) includes a bolt body (501), a nut (507) is threadedly connected to the bolt body (501), a first gasket (502) and a second gasket (506) are sleeved between the nut (507) and the end of the bolt body (501), a threaded groove hole (503) and a cavity (513) are arranged in the bolt body (501), the diameter of the cavity (513) is greater than the diameter of the threaded groove hole (503), a threaded column (504) is threadedly connected in the threaded groove hole (503), one end of the threaded column (504) is coaxially fixed with an expanded metal column (505), the expanded metal column (505) is placed in the cavity (513), a gap is formed between the outer wall of the expanded metal column (505) and the inner wall of the cavity (513), the gap is filled with hot melt lubricating grease (511), a cover (508) is coaxially fixed on the outer side of the expanded metal column (505), the cover (508) is used for sealing the cavity (513), a torsional shear fracture column (509) is coaxially fixed away from one end of the threaded column (504), a plurality of spline grooves (510) are arranged on the torsional shear fracture column (509), and the plurality of spline grooves (510) are circumferentially and equally spaced. A plurality of leakage holes (512) are arranged in a matrix on the inner wall of the cavity (513), the plurality of leakage holes (512) are circumferentially and equally spaced, and the thread direction in the threaded groove hole (503) is opposite to the thread direction on the outer wall of the bolt body (501).

2. The replaceable coupling beam energy dissipation structure convenient to repair according to claim 1, wherein the buried fixing assembly comprises a horizontal I-shaped steel (101), one end of the horizontal I-shaped steel (101) is embedded in the wall limb, and the other end of the horizontal I-shaped steel (101) is fixed to the fixed end face (102).

3. The replaceable coupling beam energy dissipation structure convenient to repair according to claim 2, wherein a plurality of first vertical stiffening ribs (106) are fixed to the middle of the horizontal I-shaped steel (101), and the plurality of first vertical stiffening ribs (106) located on the front and rear sides of the horizontal I-shaped steel (101) are symmetrically arranged.

4. The replaceable coupling beam energy dissipation structure convenient for repair according to claim 3, one end of a horizontal stiffening rib (103) is fixedly connected to the top and bottom of the front and back of the fixed end face (102) respectively, and the other end of the horizontal stiffening rib (103) is fixedly connected to the side wall of the corresponding first vertical stiffening rib (106).

5. The replaceable coupling beam energy dissipation structure convenient for repair according to claim 4, the energy dissipation beam segment (2) comprises an energy dissipation I-beam (201), a connecting end face (202) is fixedly connected to both ends of the energy dissipation I-beam (201) respectively, a plurality of second long round holes (203) are formed on the connecting end face (202), the plurality of second long round holes (203) correspond to the plurality of first long round holes (105) one by one, and the second long round holes (203) have the same structure as the first long round holes (105).

6. The replaceable coupling beam energy dissipation structure convenient for repair according to claim 5, a plurality of second vertical stiffening ribs (205) are fixedly connected to the front and back of the energy dissipation I-beam (201) respectively, and the plurality of second vertical stiffening ribs (205) on the front and back are symmetrically arranged.

7. The replaceable coupling beam energy dissipation structure convenient for repair according to claim 6, one end of a shear force plate (3) is fixedly connected to the horizontal stiffening rib (103), and the other end of the shear force plate (3) is fixedly connected to the end of the energy dissipation I-beam (201).

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