Replaceable steel plate-hybrid fiber concrete composite coupling beam

Abstract

The utility model relates to the technical field of civil engineering, in particular to a replaceable steel plate-hybrid fiber concrete combined coupling beam which comprises a floor slab, two bottom wall bodies are fixed to the bottom of the floor slab, a shear wall is fixed to the top of each bottom wall body, and a concrete coupling beam is arranged between the two shear walls. Embedded steel plates are fixed to the front end and the rear end of each shear wall through a plurality of embedded steel plate shear-resistant studs, connecting beam steel plates are fixed to the front end and the rear end of the concrete connecting beam through connecting beam steel plate shear-resistant studs, connecting blocks are fixed to the left side and the right side of each connecting beam steel plate, and a connecting buckle is slidably connected to the outer side of each connecting block. According to the device, the defects that a traditional concrete material is poor in toughness, low in tensile strength, large in material discrete type and the like are overcome, early-stage damage of a floor slab under the earthquake action is reduced under the condition that the bearing capacity of the concrete coupling beam is not greatly affected, and the device has the function of being convenient to rapidly replace and repair after the earthquake.

Description

Technical Field

[0001] This utility model belongs to the field of civil engineering technology, specifically a replaceable steel plate-hybrid fiber concrete composite beam. Background Technology

[0002] With social development and advancements in building technology, design concepts that merely prioritize personnel safety are no longer sufficient to meet the needs of modern society. Therefore, achieving rapid restoration of the structure, city, and even society as a whole to their normal functionality after an earthquake has become a new requirement for seismic resistance in engineering structures. Coupling beams, as key components in the shear wall structure system of high-rise buildings, generally have a small span-to-height ratio due to building requirements and structural stiffness requirements. Under strong earthquakes, coupling beams are prone to brittle shear failure and cannot fully fulfill their role as the first line of defense against earthquakes. To improve the role of coupling beams in structural seismic resistance, various methods have been proposed, including diagonal reinforcement, rhomboid reinforcement, composite diagonal reinforcement, segmented closed reinforcement, steel coupling beams, rectangular steel tube-filled concrete coupling beams, steel-concrete composite coupling beams, steel truss-concrete composite coupling beams, and steel plate-concrete composite coupling beams.

[0003] However, existing methods suffer from insufficient shear strength, construction difficulties, low fire resistance, and poor coordination between steel plates and concrete deformation. Furthermore, in actual engineering projects, most connecting beams are cast integrally with the floor slab, and the floor slab exerts a certain constraint on the stress and deformation of one side edge of the connecting beam. Under a major earthquake, the deformation of the replaceable connecting beam is too large, which is extremely detrimental to the floor slab above the connecting beam. To address these issues, this utility model designs a replaceable steel plate-hybrid fiber concrete composite connecting beam. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a replaceable steel plate-hybrid fiber concrete composite connecting beam, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a replaceable steel plate-hybrid fiber concrete composite connecting beam, comprising a floor slab, two bottom walls fixed at the bottom of the floor slab, a shear wall fixed at the top of each bottom wall, a concrete connecting beam between the two shear walls, an embedded steel plate fixed to both ends of each shear wall by multiple embedded steel plate shear studs, multiple reinforcing plates tightly fitted to the outside of each embedded steel plate, a positioning rod fixed to the outer end of each reinforcing plate, an adapter plate on the rear side of each reinforcing plate, an adapter rod fixed to the rear side of each adapter plate, a connecting beam steel plate fixed to both ends of the concrete connecting beam by connecting beam steel plate shear studs, connecting blocks fixed to both sides of the connecting beam steel plate, two locking blocks slidably connected inside each connecting block, a connecting buckle slidably connected to the outside of each connecting block, each connecting buckle fixedly connected to one end of the embedded steel plate, and steel plates also fixed to both ends of the concrete connecting beam.

[0006] Preferably, each shear wall is fixed with a reinforcing bar at its outer end, each reinforcing bar is fixed with a wall-mixed fiber concrete slab at its outer end, and the concrete connecting beam is also fixed with a connecting beam-mixed fiber concrete slab at its outer end.

[0007] Preferably, each shear wall is provided with a plurality of high-strength bolts at one end near the concrete connecting beam, and each high-strength bolt is externally engaged with a high-strength nut.

[0008] Preferably, each shear wall is fixed with a supporting steel plate at its outer end, each supporting steel plate is tightly fitted with the embedded steel plate at one end, each positioning rod is slidably connected to a positioning plate, each positioning plate is fixedly connected to the shear wall at its rear end, each positioning rod is also provided with a positioning spring, each reinforcing plate is fixed with a connecting plate at its rear, each connecting plate is fixed with a moving plate at its rear, each moving plate is slidably connected to the adapter rod at its front end, and each adapter rod is also provided with an adapter spring.

[0009] Preferably, each of the connecting beam steel plates is further provided with a movable cavity, a locking handle is slidably connected inside each of the movable cavities, a locking plate is fixed inside each of the locking handles, a locking rod is fixed at one end of each of the locking plates, each locking rod is fixedly connected to a locking block at one end of the locking plate, each connecting block is provided with two locking cavities inside, a locking rod positioning plate is fixed on the side of each locking cavity away from the concrete connecting beam, each locking rod positioning plate is slidably connected to the locking rod at one end of the locking plate, and a locking spring is also provided on the outside of each locking rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention connects two shear walls using concrete coupling beams. The advantages of concrete coupling beams lie in the fact that plastic deformation primarily occurs in the energy-dissipating section, dissipating seismic energy and protecting and reducing the weight of the shear wall structure, thus minimizing shear wall damage. Furthermore, it facilitates rapid replacement and repair after an earthquake, thereby extending the overall lifespan of the device and increasing its replaceability. This device overcomes the shortcomings of traditional concrete materials, such as poor toughness, low tensile strength, and large material dispersion. It reduces early-stage damage to the floor slab under seismic loads without significantly affecting the load-bearing capacity of the concrete coupling beams, and provides easy replacement and repair after an earthquake, thereby greatly improving the seismic performance of the concrete coupling beams. Additionally, this device is simple to construct.

[0012] This invention connects shear walls and concrete connecting beams by using an embedded steel plate and a connecting beam steel plate, thereby ensuring the stability of the shear wall and the concrete connecting beam and guaranteeing the connection effect. Simultaneously, the device uses a positioning rod and a positioning spring to ensure the connecting plate is tightly attached to the embedded steel plate, and an adapter rod and an adapter spring to ensure the adapter plate and reinforcing plate are tightly attached to the embedded steel plate, thus positioning the embedded steel plate and facilitating its installation. This ensures the stability of the embedded steel plate before pouring, thereby guaranteeing the pouring effect.

[0013] This invention utilizes the locking rod and locking spring to move the locking block, which then engages with the connecting buckle, ensuring a tight fit between the connecting block and the connecting buckle. This connects the steel plate of the connecting beam and the embedded steel plate, thereby guaranteeing the stability of the connection between the concrete connecting beam and the shear wall, and thus ensuring the stability of the entire device. Furthermore, the locking handle facilitates the disassembly of the connecting block, which in turn facilitates the disassembly of the concrete connecting beam, improving replacement efficiency and ensuring replacement accuracy. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the present invention;

[0019] Figure 4 This is a schematic diagram of the outer end of the reinforcing plate of this utility model;

[0020] Figure 5This is a side view of the reinforcing plate of this utility model;

[0021] Figure 6 This is a schematic diagram of the outer side of the movable plate of this utility model;

[0022] Figure 7 This is a schematic diagram of the connecting buckle of this utility model;

[0023] Figure 8 This is a schematic diagram of the internal structure of the connecting buckle of this utility model;

[0024] Figure 9 This is a schematic diagram of the outer end of the locking plate of this utility model.

[0025] In the diagram: 1-Floor slab; 2-Shear wall; 3-Concrete coupling beam; 4-Steel plate; 5-Embedded steel plate; 6-Coupling beam steel plate; 7-Reinforcing plate; 8-Connecting block; 201-Bottom wall; 202-Wall composite fiber concrete slab; 203-Reinforcing bar; 301-Coupling beam composite fiber concrete slab; 401-High-strength bolt; 402-High-strength nut; 501-Embedded steel plate shear stud; 502-Supporting steel plate; 503-Connecting buckle; 601-Shear studs on connecting beam steel plate; 602-Moving cavity; 701-Positioning plate; 702-Positioning rod; 703-Positioning spring; 704-Connecting plate; 705-Adaptor plate; 706-Adaptor rod; 707-Adaptor spring; 708-Moving plate; 801-Locking handle; 802-Locking plate; 803-Locking rod; 804-Locking rod positioning plate; 805-Locking spring; 806-Locking block; 807-Locking cavity. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] Example 1, by Figures 1-5 , Figures 7-8The present invention includes a floor slab 1, which can be a novel RC floor slab with semi-continuous joints or a novel floor deck slab with steel trusses. The floor slab 1 supports the entire device. Two bottom walls 201 are fixed to the bottom of the floor slab 1, which support the floor slab 1. A shear wall 2 is fixed to the top of each bottom wall 201. The shear wall 2 is made of cast concrete and supports the steel reinforcement 203. A concrete connecting beam 3 is provided between the two shear walls 2. The concrete connecting beam 3 is made of cast concrete and connects the two shear walls 2. Both the front and rear ends are fixed with embedded steel plates 5 by multiple embedded steel plate shear studs 501. The embedded steel plates 5 can improve the stability of the shear wall 2. Each embedded steel plate 5 has multiple reinforcing plates 7 tightly attached to its exterior. The reinforcing plates 7 are made of hard steel and are used to position the embedded steel plates 5, thereby facilitating their installation. Each reinforcing plate 7 has a positioning rod 702 fixed to its outer end. The positioning rod 702 is made of alloy material and is used to position the reinforcing plate 7. Each reinforcing plate 7 has an adapter plate 705 on its rear side. The adapter plate 705 is made of hard steel. The embedded steel plate 5 can be positioned by cooperating with the reinforcing plate 7. Each adapter plate 705 has an adapter rod 706 fixed to its rear side. The adapter rod 706 is made of alloy material and is used to position the adapter plate 705. The front and rear ends of the concrete connecting beam 3 are fixed with connecting beam steel plates 6 by connecting beam steel plate shear studs 601. The connecting beam steel plates 6 are made of hard steel. The connecting beam steel plate shear studs 601 are used to position the connecting beam steel plates 6. Connecting blocks 8 are fixed on both sides of the connecting beam steel plates 6. The connecting blocks 8 are made of hard steel and are used to connect the embedded steel plate 5 and the connecting beam steel plates 6. Each The connecting block 8 has two locking blocks 806 slidably connected inside. The locking blocks 806 are made of alloy material and are used to lock the connecting buckle 503 and the connecting block 8. Each connecting block 8 has a connecting buckle 503 slidably connected to its outer side. The connecting buckle 503 is made of hard steel and is used to connect the connecting block 8 and the embedded steel plate 5. Each connecting buckle 503 is fixedly connected to the embedded steel plate 5 at one end. The concrete connecting beam 3 also has steel plates 4 fixed at both ends. The steel plates 4 are made of high-strength steel and are used to connect the shear wall 2 and the concrete connecting beam 3.

[0028] Example 2, based on Example 1, combined with... Figure 6 , Figure 9Each shear wall 2 is provided with a steel reinforcing bar 203 fixed at its outer end. The steel reinforcing bar 203 is made of steel and can improve the stability of the shear wall 2. Each steel reinforcing bar 203 is fixed with a wall-mounted hybrid fiber concrete board 202 at its outer end. The concrete connecting beam 3 is also fixed with a connecting beam hybrid fiber concrete board 301 at its outer end. The wall-mounted hybrid fiber concrete board 202 and the connecting beam hybrid fiber concrete board 301 are mainly composed of cement, silica fume, fly ash, river sand, and water, mixed in a mass percentage, wherein the ratio of cement:silica fume:fly ash:river sand:water = 1:0.098:0.366:0.585:0.439, based on the volume of cement, silica fume, fly ash, river sand, and water after thorough mixing. The volume content of calcium carbonate whiskers is 1.0%, the volume content of basalt fiber is 0.6%, and the volume content of PVA is 0.7%. The cement is PO 42.5 ordinary Portland cement, with river sand having a particle size not exceeding 2.5mm and a natural mud content of less than 5%; the relative density of calcium carbonate whiskers is 2.5×10⁻⁶. 3 The basalt fibers have a density of kg / m³, a length of 20–30 μm, and a diameter of 1–2 μm; the relative density of the basalt fibers is 2.56 × 10⁻⁶. 3 The PVA has a strength of kg / m³, a length of 18 mm, a single filament diameter of 15 μm, and a tensile strength of not less than 2400 MPa; the relative density of PVA is 1.3 × 10⁻⁶. 3 The filament has a strength of kg / m³, a length of 12 mm, a single filament diameter of 20 μm, a tensile strength of 1500 MPa, and an elastic modulus of 3.5 × 10⁻⁶. 4 kg / m³; the relative density of basalt fiber is 2.56×10⁻⁶ kg / m³. 3 The PVA has a strength of kg / m³, a length of 18 mm, a single filament diameter of 15 μm, and a tensile strength of not less than 2400 MPa; the relative density of PVA is 1.3 × 10⁻⁶. 3 The filament has a strength of kg / m³, a length of 12 mm, a single filament diameter of 20 μm, a tensile strength of 1500 MPa, and an elastic modulus of 3.5 × 10⁻⁶. 4kg / m³, each shear wall 2 is provided with multiple high-strength screws 401 near one end of the concrete connecting beam 3. The high-strength screws 401 are made of high-strength steel bars and can slide a certain distance inside the steel plate 4 without disengaging from the shear wall 2, thus ensuring the stability of the high-strength screws 401 and facilitating the installation of the steel plate 4. Each high-strength screw 401 is externally engaged with a high-strength nut 402. The high-strength screws 401 and high-strength nuts 402 cooperate to position the steel plate 4, thereby positioning the concrete connecting beam 3. Each shear wall 2 has a supporting steel plate 502 fixed to its outer end. The supporting steel plate 502 is made of hard steel and is used for positioning the... The embedded steel plate 5 is described above. Each supporting steel plate 502 is tightly fitted to one end of the embedded steel plate 5. Each positioning rod 702 is externally slidably connected to a positioning plate 701, which is made of alloy material. The positioning plate 701 is used to position the positioning rod 702. Each positioning plate 701 is fixedly connected to the shear wall 2 at its rear end. Each positioning rod 702 is also externally provided with a positioning spring 703, which is elastic, thereby ensuring that the reinforcing plate 7 is tightly fitted to the embedded steel plate 5. Each reinforcing plate 7 is fixedly connected to a connecting plate 704 at its rear. The connecting plate 704 is made of alloy material and is used to connect the reinforcing plate 7 and the moving plate 708. Each connecting plate 704 has a movable plate 708 fixed to its rear. The movable plate 708 is made of alloy material and is used to position the adapter rod 706. Each movable plate 708 is slidably connected to the adapter rod 706 at its front end. Each adapter rod 706 is also provided with an adapter spring 707. The adapter spring 707 is elastic, so that the adapter plate 705 is tightly attached to the embedded steel plate 5. Each connecting beam steel plate 6 is also provided with a movable cavity 602. The movable cavity 602 provides a moving channel for the locking handle 801. A locking handle 801 is slidably connected inside each movable cavity 602. The locking handle 801 facilitates the movement of the locking plate 802. Each lock A locking plate 802, made of alloy material, is fixed to the inner side of the fixed handle 801. The locking plate 802 is used to position the locking rod 803. A locking rod 803, also made of alloy material, is fixed to one end of each locking plate 802. The locking rod 803 is used to position the locking block 806. Each locking rod 803 is fixedly connected to the locking block 806 at one end. Each connecting block 8 has two locking cavities 807 inside. The locking cavities 807 are used to position the locking rod positioning plate 804. A locking rod positioning plate 804, made of alloy material, is fixed to the side of each locking cavity 807 away from the concrete connecting beam 3.The locking rod positioning plate 804 is used to position the locking rod 803. Each locking rod positioning plate 804 is slidably connected to one end of the locking rod 803. Each locking rod 803 is also externally provided with a locking spring 805. The locking spring 805 is elastic, so that the locking block 806 moves outward when no force is applied.

[0029] Before using this device, workers pour concrete for the shear wall 2 and the concrete connecting beam 3 as needed. Then, workers weld multiple reinforcing bars 203 to the outside of the shear wall 2, and simultaneously weld the supporting steel plate 502 and the positioning plate 701. At this point, workers place the embedded steel plate 5 inside the reinforcing plate 7. Due to the actions of the positioning rod 702 and the positioning spring 703, the connecting plate 704 is tightly attached to the embedded steel plate 5. Simultaneously, due to the actions of the adapter rod 706 and the adapter spring 707, the reinforcing plate 7 and the adapter plate 705 are tightly attached to the embedded steel plate 5, thus ensuring the stability of the embedded steel plate 5. Further workers then... Multiple shear studs 501 are inserted into the embedded steel plate 5 to ensure its stability. Next, the steel plate 4 is cast at both ends of the concrete connecting beam 3. Simultaneously, multiple high-strength bolts 401 are cast at the end of the shear wall 2 near the concrete connecting beam 3. These high-strength bolts 401 are adjustable to ensure the steel plate 4 and shear wall 2 are tightly fitted. The connecting beam steel plate 6 is then raised to be parallel to the embedded steel plate 5, making the connecting block 8 parallel to the connecting buckle 503 at one end. The connecting block 8 is then inserted into the connecting buckle 503. At this point, due to the locking plate 802 and the locking... The spring 805 allows the locking block 806 to move, thereby allowing the connecting block 8 to insert into the connecting buckle 503, thus fixing the connecting block 8 and the connecting buckle 503, and thus fixing the embedded steel plate 5 and the connecting beam steel plate 6. At this time, the worker lifts the concrete connecting beam 3 to the required height and further fine-tunes the high-strength screw 401, so that the steel plate 4 is tightly attached to the shear wall 2 while the high-strength screw 401 is inserted into the steel plate 4. At this time, the worker uses multiple high-strength nuts 402 to make the steel plate 4 and the shear wall 2 tightly attached, thus fixing the concrete connecting beam 3 and the shear wall 2. Further, after the prefabrication is completed... The outer end of the concrete connecting beam 3 is fixed to the connecting beam steel plate 6 by multiple shear studs 601, thereby fixing the connecting beam steel plate 6, the concrete connecting beam 3, the embedded steel plate 5, and the shear wall 2. Further, workers pour the wall-mixed fiber concrete board 202 at the outer end of the shear wall 2, and simultaneously pour the connecting beam-mixed fiber concrete board 301 at the outer end of the concrete connecting beam 3, thus ensuring the stability of the entire device. When the concrete connecting beam 3 deforms due to an earthquake, workers pull the locking handle 801, causing the locking rod 803 to move, which in turn moves the locking block 806, facilitating the disassembly of the concrete connecting beam 3.

[0030] The working process of this utility model is as follows: Before using this device, the workers pour the shear wall 2 and the concrete connecting beam 3 according to the requirements. Then, the workers weld multiple reinforcing bars 203 to the outside of the shear wall 2, and simultaneously weld the supporting steel plate 502 and the positioning plate 701. At this time, the workers place the embedded steel plate 5 inside the reinforcing plate 7. Due to the action of the positioning rod 702 and the positioning spring 703, the connecting plate 704 is tightly attached to the embedded steel plate 5. Simultaneously, due to the action of the adapter rod 706 and the adapter spring 707, the reinforcing plate 7 and the adapter plate 705 are tightly attached to the embedded steel plate 5, thereby ensuring the stability of the embedded steel plate 5. Further, workers insert multiple shear studs 501 into the embedded steel plate 5 to ensure its stability. Then, workers cast the steel plate 4 at both ends of the concrete connecting beam 3, and simultaneously cast multiple high-strength bolts 401 at the end of the shear wall 2 near the concrete connecting beam 3. These high-strength bolts 401 are adjustable to ensure the steel plate 4 and shear wall 2 are tightly fitted. Next, workers lift the connecting beam steel plate 6 to be parallel to the embedded steel plate 5, making the connecting block 8 parallel to the connecting buckle 503 at one end. Then, workers insert the connecting block 8 into the connecting buckle 503. At this point, due to the locking plate 80... The function of 2 and the locking spring 805 allows the locking block 806 to move, thereby allowing the connecting block 8 to be inserted into the connecting buckle 503, thus fixing the connecting block 8 and the connecting buckle 503, thereby fixing the embedded steel plate 5 and the connecting beam steel plate 6. At this time, the worker lifts the concrete connecting beam 3 to the required height and further fine-tunes the high-strength screw 401, so that the steel plate 4 is tightly attached to the shear wall 2 while the high-strength screw 401 is inserted into the steel plate 4. At this time, the worker uses multiple high-strength nuts 402 to make the steel plate 4 and the shear wall 2 tightly attached, thereby fixing the concrete connecting beam 3 and the shear wall 2. The worker then further... The prefabricated concrete connecting beam 3 is fixed at its outer end by multiple shear studs 601, thereby fixing the connecting beam steel plate 6, the concrete connecting beam 3, the embedded steel plate 5, and the shear wall 2. Further, workers pour the wall-mixed fiber concrete board 202 at the outer end of the shear wall 2, and simultaneously pour the connecting beam-mixed fiber concrete board 301 at the outer end of the concrete connecting beam 3, ensuring the stability of the entire device. When the concrete connecting beam 3 deforms due to an earthquake, workers pull the locking handle 801, causing the locking rod 803 to move, which in turn moves the locking block 806, facilitating the disassembly of the concrete connecting beam 3.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A replaceable steel plate-hybrid fiber reinforced concrete composite coupling beam, characterized in that: The floor slab (1) includes two bottom walls (201) fixed at the bottom of the floor slab (1), and a shear wall (2) fixed at the top of each bottom wall (201). A concrete connecting beam (3) is provided between the two shear walls (2). Each shear wall (2) has an embedded steel plate (5) fixed at both ends by multiple embedded steel plate shear studs (501). Multiple reinforcing plates (7) are tightly attached to the outside of each embedded steel plate (5). A positioning rod (702) is fixed at the outer end of each reinforcing plate (7). An adapter plate (705) is provided on the rear side of each reinforcing plate (7). An adapter rod (706) is fixed to the rear side of the adapter plate (705). The front and rear ends of the concrete connecting beam (3) are fixed with connecting beam steel plates (6) by connecting beam steel plate shear studs (601). Connecting blocks (8) are fixed on both sides of the connecting beam steel plates (6). Each connecting block (8) has two locking blocks (806) slidably connected inside. Each connecting block (8) has a connecting buckle (503) slidably connected on the outside. Each connecting buckle (503) is fixedly connected to the embedded steel plate (5) at one end. Steel plates (4) are also fixed on both sides of the concrete connecting beam (3).

2. The replaceable steel plate-hybrid fiber reinforced concrete composite coupling beam according to claim 1, characterized in that: Each shear wall (2) is fixed with a steel bar (203) at its outer end, and each steel bar (203) is fixed with a wall-mixed fiber concrete slab (202) at its outer end. The concrete connecting beam (3) is also fixed with a connecting beam-mixed fiber concrete slab (301) at its outer end.

3. A replaceable steel plate-hybrid fiber reinforced concrete composite coupling beam according to claim 2, characterized in that: Each shear wall (2) is provided with a plurality of high-strength screws (401) at one end near the concrete connecting beam (3), and each high-strength screw (401) is externally engaged with a high-strength nut (402).

4. A replaceable steel plate-hybrid fiber reinforced concrete composite coupling beam according to claim 3, characterized in that: Each shear wall (2) is fixed with a support steel plate (502) at its outer end. Each support steel plate (502) is tightly fitted with the embedded steel plate (5) at one end. Each positioning rod (702) is slidably connected with a positioning plate (701). Each positioning plate (701) is fixedly connected with the shear wall (2) at its rear end. Each positioning rod (702) is also provided with a positioning spring (703). Each reinforcing plate (7) is fixed with a connecting plate (704) at its rear. Each connecting plate (704) is fixed with a moving plate (708) at its rear. Each moving plate (708) is slidably connected with the adapter rod (706) at its front end. Each adapter rod (706) is also provided with an adapter spring (707) at its exterior.

5. A replaceable steel plate-hybrid fiber reinforced concrete composite coupling beam according to claim 1, characterized in that: Each of the connecting beam steel plates (6) is also provided with a movable cavity (602), and a locking handle (801) is slidably connected inside each of the movable cavity (602). A locking plate (802) is fixed inside each of the locking handles (801), and a locking rod (803) is fixed at one end of each of the locking plates (802). Each locking rod (803) is fixedly connected to the locking block (806) at one end of it. Each connecting block (8) is provided with two locking cavities (807). A locking rod positioning plate (804) is fixed on the side of each locking cavity (807) away from the concrete connecting beam (3). Each locking rod positioning plate (804) is slidably connected to the locking rod (803) at one end of it. A locking spring (805) is also provided outside each locking rod (803).

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