A reinforcing device based on a building structure beam

Abstract

The application relates to a reinforcing device based on a building structure beam, which comprises a reinforcing frame, clamping pieces, supporting pieces, gears, a rack, a steel cable and a tensioning assembly. The supporting pieces are arranged on the reinforcing frame, the upper end surfaces of the supporting pieces are in contact with the bottom surface of the beam, two clamping pieces are clamped on the two sides of the beam, the lower end of the clamping piece is provided with a rack, the gear is arranged in the supporting piece, the lower end surface of the gear is connected with the steel cable, and the steel cable is arranged along the radial direction of the gear. A positive rotating torque is applied to the gear through the tensioned steel cable, the clamping pieces are clamped on the two sides of the beam through the meshed gear and rack, the lateral force borne by the beam is applied to the gear through the clamping pieces to generate a reverse rotating torque, the positive rotating torque balances the reverse rotating torque, the lateral reinforcing effect of the beam is improved, the arch-shaped supporting pieces are arranged at the lower end of the beam, the pressure borne by the beam is balanced and decomposed through the arch-shaped supporting pieces, the influence of the beam on the wall and the column on the two sides of the beam is reduced, and the stability and safety of the building structure are improved.

Description

Technical Field

[0001] This invention relates to the field of building beam reinforcement technology, specifically to a reinforcement device based on building structural beams. Background Technology

[0002] Building beams are horizontal structural members that bear vertical loads from floor slabs, roof slabs, and other materials. They transfer loads to columns or walls, helping to distribute loads, maintain building stability, and increase building rigidity, thereby preventing structural deformation and reducing the risk of collapse. Therefore, beams require high structural strength. Over time, they are susceptible to damage from vibrations, environmental influences, foundation settlement, and the weight of objects above them, leading to a decrease in safety.

[0003] To ensure and extend the structural performance of beams, reinforcement is usually required. Currently, when reinforcing beams laterally, clamping plates are typically installed on both sides of the beam to clamp it. However, these clamping plates lack necessary support. When the beam is subjected to lateral force, the lateral force is directly transmitted to the clamping plates, which lack the necessary support. When the beam undergoes slight bending deformation due to lateral force, the clamping plates will also undergo slight displacement due to the bending deformation of the beam, resulting in limited reinforcement effectiveness. In addition, when reinforcing the bottom surface of the beam, a support component is usually installed at the lower end of the beam to connect the beam to the wall or column, supporting the beam from the bottom. When this type of reinforcement is used, the pressure on the beam is directly transmitted to the support. The support uses its own structure and the support of the wall or column to bear the pressure transmitted by the beam. The support will bring tensile force from both sides to the middle to the wall or column, which can easily cause damage to the wall or column, affecting the stability and safety of the building structure. Moreover, its supporting effect will become weaker and weaker over time. Summary of the Invention

[0004] In view of this, in order to overcome the shortcomings of the existing technology, the present invention provides a reinforcement device based on the crossbeam of a building structure. It applies a positive rotational torque to the gear through a taut steel cable, and clamps the crossbeam from both sides through the meshing gear rack. The lateral force borne by the crossbeam applies a reverse rotational torque to the gear through the clamping device. The positive rotational torque balances the reverse rotational torque, thereby improving the lateral reinforcement effect of the crossbeam. At the same time, an arched support is set at the lower end of the crossbeam. The arched support balances and distributes the pressure borne by the crossbeam, reducing its impact on the walls and columns on both sides of the crossbeam, and improving the stability and safety of the building structure.

[0005] To achieve the above objectives, the technical solution provided by this invention is as follows: A reinforcement device based on a building structural beam, comprising: The reinforcement frame includes a base plate and fasteners. The base plate is positioned below the crossbeam and runs along the length of the crossbeam. Both ends of the base plate are fixedly connected to the walls or columns at both ends of the crossbeam via fasteners. The clamping assembly has two clamping members symmetrically arranged on both sides of a crossbeam. Each clamping member has a vertical portion that conforms to the side of the crossbeam and a horizontal portion arranged perpendicular to the vertical portion. The lower ends of the horizontal portion are connected to the vertical portions. The vertical portions of the two clamping members can move in a direction close to or away from the crossbeam. A gear and rack assembly provides transmission for the movement of two clamping members. The gear is positioned below the clamping assembly, and the rack is positioned at the lower end of the horizontal portion of the clamping member, arranged along the cross-sectional width of the beam. The racks at the lower ends of the horizontal portions of the two clamping members are symmetrically arranged and parallel to each other on both sides of the gear. The gear meshes with both racks simultaneously. The steel cable assembly includes a steel cable and tensioning assemblies fixedly disposed at both ends of the steel cable. The steel cable is located below the crossbeam and is connected to the end face of the gear. The steel cable is arranged radially along the gear, and there is an angle α between the steel cable and the center line of the gear end face that is parallel to the length direction of the crossbeam. The steel cable is connected to the fixing component through a tensioning assembly, which can tighten or loosen the steel cable. When the tensioning assembly tightens or loosens the steel cable, the steel cable drives the gear to rotate, thereby causing the two racks to move relative to or away from each other, which in turn causes the vertical parts of the two clamping parts to move in a direction close to or away from the crossbeam, so that the clamping parts clamp or loosen the crossbeam.

[0006] Furthermore, it also includes a support member, which has a support plate that fits against the bottom surface of the crossbeam and a connecting part that connects the support plate and the base plate. The top surface of the horizontal part of the clamping member fits against the bottom surface of the support plate. The gear is disposed inside the support member and is rotatably connected to the support member.

[0007] Furthermore, the support plate is provided with connecting parts on both sides along the length of the crossbeam. The connecting parts are arc-shaped structures. The connecting parts on both sides of the support plate and the support plate form an arched support member. The connecting parts are provided with through holes for passing steel cables.

[0008] Furthermore, the bottom surface of the support plate is provided with two parallel sliding grooves, and the horizontal part of the clamping member is provided with an upwardly protruding slider. The slider is disposed in the sliding groove, and the slider and the sliding groove cooperate to slide.

[0009] Furthermore, the width of the support member is smaller than the cross-sectional width of the beam, and an elastic member is provided between the side of the support plate along the width direction of the beam and the vertical part of the clamping member.

[0010] Furthermore, the lower end face of the gear is provided with at least one set of winding post groups, each set of winding post groups has two winding posts, the two winding posts are symmetrical about the center of the lower end face of the gear, the lower end face of the gear is connected to at least one steel cable, one steel cable corresponds to one set of winding post groups, and one steel cable passes around the two symmetrical winding posts of the corresponding winding post group.

[0011] Furthermore, the lower end of the gear is provided with a threading post that is coaxial with the gear and extends downward. The threading post has at least one threading hole that passes through it radially. The axis of the threading hole is parallel to the lower end face of the gear, and the axis of the threading hole intersects with the axis of the gear. The steel cable is threaded through the threading hole.

[0012] Furthermore, the number of clamping components is multiple, and the multiple clamping components are equidistantly distributed along the length direction of the crossbeam. The lower end faces of the gears below all the clamping components are collinear with the center lines parallel to the length direction of the crossbeam, and all the gears are connected to at least the same steel cable.

[0013] Furthermore, the tensioning assembly includes a tensioning plate, a tensioning screw, and a tensioning sleeve. The steel cable is fixedly connected to the tensioning plate. A tensioning screw is provided on the side of the tensioning plate near the fixing member. A tensioning sleeve that can rotate relative to the fixing member is provided on the side of the fixing member near the tensioning plate. The tensioning screw is threadedly connected to the tensioning sleeve. Rotating the tensioning sleeve can cause the tensioning plate to move in a direction closer to or further away from the fixing member.

[0014] Furthermore, the reinforcement frame also includes a lower support member, which is located below the base plate and connects the base plate to the wall or column. The lower support member is a diagonal tie rod, with one end connected to the base plate and the other end connected to the wall or column. The walls or columns at both ends of the crossbeam are connected to the base plate through the diagonal tie rod. Alternatively, the lower support member is an arched strut, with both ends connected to the walls or columns at both ends of the crossbeam, and the arch top of the arched strut is connected to the base plate.

[0015] The beneficial effects of this invention are as follows: 1. This invention includes a clamping assembly. The two clamping parts of the clamping assembly clamp the crossbeam from both sides, thereby achieving lateral reinforcement of the crossbeam. This invention also includes a support member and a reinforcement frame below the crossbeam. The support member and reinforcement frame support the crossbeam from the lower end, thereby achieving lower reinforcement of the crossbeam. The reinforcement of both sides and the lower part of the crossbeam can effectively improve the crossbeam's ability to withstand lateral forces and pressures, improve the stability of the crossbeam, and thus improve the stability and safety of the building.

[0016] 2. This invention utilizes the torque applied to the gear by the steel cable during the tensioning process, which drives the gear to rotate. The gear then moves the rack, thereby clamping the crossbeam with clamping components on both sides. The tensioning steel cable applies a positive rotational torque to the gear, meaning the gear rotates in the direction the clamping components approach the crossbeam, thus maintaining the clamping of the crossbeam by both clamping components. The lateral force on the crossbeam is transmitted to the tensioning assembly via the clamping components, gear and rack, and steel cable, and then further transmitted to the walls or columns on both sides of the crossbeam via the tensioning assembly. The lateral force on the beam is transmitted to the clamping member, which exerts a thrust on the clamping member away from the beam. Under the action of the rack, the thrust on the clamping member applies a reverse rotational torque to the gear. The reverse direction refers to the direction of gear rotation when the clamping member moves away from the beam. The positive torque exerted on the gear by the tensioned steel cable partially or completely balances the reverse torque, which means that the clamping member can always clamp the beam and also counteract the lateral force on the beam. In addition, the tensioned steel cable generates a tensile force from both sides to the middle on the walls or columns on both sides of the beam. The reinforcement frame can counteract this tensile force, which can effectively reduce the impact of the beam and the walls or columns on both sides when the beam is subjected to lateral force, thereby effectively improving the stability of the beam and the building structure.

[0017] 3. The support structure of this invention allows the downward pressure on the beam to be transferred to the base plate, and then to the walls or columns at both ends of the beam. The support structure is an arched structure. The deformation of the arched structure under pressure can provide an upward reaction force to the beam, balancing part of the pressure applied by the beam. At the same time, under the action of the arched structure, the pressure is decomposed into downward pressure and lateral thrust, thereby reducing the pressure on the base plate and also reducing the inward tension on the walls or columns. In addition, among the multiple support structures arranged along the length of the beam, the decomposed thrust between adjacent support structures is in opposite directions, which can partially or completely balance the thrust. The lateral thrust is transferred to the walls or columns through the base plate, bringing outward thrust to the walls or columns. The outward thrust can partially or completely balance the inward tension, effectively reducing the impact and damage to the walls or columns at both ends of the beam when it is under pressure, thereby effectively improving the stability of the building.

[0018] 4. The reinforcement frame of the present invention has a base plate and a lower support member at the lower end of the base plate. The lower support member supports the base plate from the lower end of the base plate. The setting of the lower support member can effectively improve the stability of the reinforcement frame and provide stable support for the reinforcement of the crossbeam.

[0019] 5. The present invention has a simple structure, is easy to construct, and has good stability. While reinforcing the beam, it can effectively reduce the impact of the beam's stress on the walls or columns on both sides of the beam, improve the building's stability, and ensure the building's safety. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the sectional structure of the middle AA section; Figure 3 This is a schematic diagram of the clamping assembly, base plate, and support member of the present invention; Figure 4 This is a schematic diagram of the clamping assembly of the present invention; Figure 5 This is a schematic diagram of the support member and gear of the present invention; Figure 6 This is a schematic diagram of the gear and steel cable of the present invention; Figure 7 This is a schematic diagram of the tensioning assembly of the present invention; Figure 8 A schematic diagram of the structure of the gear of the present invention with multiple sets of winding posts on the lower end face of the gear; Figure 9 This is another structural schematic diagram of the present invention; Figure 10 This is a schematic diagram of another structure of the support member and gear of the present invention.

[0021] Figure label: 1. Crossbeam; 2. Base plate; 3. Fixing component; 4. Lower support component; 5. Clamping component; 51. Vertical part; 52. Horizontal part; 53. Rack; 54. Slider; 6. Gear; 61. Winding post; 62. Threading post; 63. Threading hole; 7. Steel cable; 8. Support component; 81. Support plate; 82. Connecting part; 83. Slide groove; 9. Tensioning plate; 10. Tensioning screw; 11. Tensioning sleeve; 12. Elastic component. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments: Example 1: like Figures 1-7 As shown, a reinforcement device based on a building structure beam includes a reinforcement frame, a clamping assembly, a support member 8, a gear 6, a rack 53, a steel cable 7, and a tensioning assembly. The reinforcement frame has a base plate 2 and a fixing member 3. The base plate 2 is arranged below the beam 1 and along the length of the beam 1. The two ends of the base plate 2 are fixedly connected to the walls or columns at both ends of the beam 1 by the fixing member 3. The reinforcement frame also includes a lower support member 4, which is located below the base plate 2 and connects the base plate 2 to the wall or column. The lower support member 4 is an arched support rod, and the two ends of the arched support rod are connected to the walls or columns at both ends of the beam 1. The arch top of the arched support rod is connected to the base plate 2, and the rod body is connected to the base plate 2 by a vertical connecting rod.

[0023] Multiple clamping components are arranged at equal intervals along the length of the crossbeam 1. Each clamping component has two clamping members 5 symmetrically arranged on both sides of the crossbeam 1. Each clamping member 5 has a vertical portion 51 that fits against the side of the crossbeam 1 and a horizontal portion 52 arranged perpendicular to the vertical portion 51. The horizontal portion 52 is connected to the lower end of the vertical portion 51. The vertical portions 51 of the two clamping members 5 can move in a direction close to or away from the crossbeam 1. A support member 8 is provided below the crossbeam 1. The width of the support member 8 is smaller than the cross-sectional width of the crossbeam 1. The support member 8 has a support plate 81 that fits against the bottom surface of the crossbeam 1 and a connecting part 82 that connects the support plate 81 and the base plate 2. The support plate 81 has a connecting part 82 on both sides along the length direction of the crossbeam 1. The connecting part 82 has an arc-shaped structure. The connecting parts 82 on both sides of the support plate 81 and the support plate 81 form an arched support member 8. In this embodiment, the connecting part 82 is an arc-shaped plate. The arc-shaped plate of the connecting part 82 has a through hole for the steel cable 7 to pass through.

[0024] The top surface of the horizontal part 52 of the clamping member 5 is in contact with the bottom surface of the support plate 81, and two parallel sliding grooves 83 are provided on the bottom surface of the support plate 81. The horizontal part 52 of the clamping member 5 is provided with an upwardly protruding slider 54, which is disposed in the sliding groove 83. The slider 54 and the sliding groove 83 cooperate to slide. An elastic element 12 is provided between the side of the support plate 81 along the width direction of the beam 1 and the vertical part 51 of the clamping member 5. In this embodiment, the elastic element 12 is a spring, which connects the support plate 81 and the vertical part 51 of the clamping member 5.

[0025] A gear 6 is provided inside the support member 8. The gear 6 is rotatably connected to the support member 8. In this embodiment, a connecting shaft is provided at the lower end of the support plate 81 of the support member 8. The gear 6 is mounted on the connecting shaft and is rotatably connected to the connecting shaft. A rack 53 is provided at the lower end of the horizontal part 52 of the clamping member 5. The rack 53 is arranged along the cross-sectional width direction of the crossbeam 1. The racks 53 at the lower ends of the horizontal parts 52 of the two clamping members 5 of the clamping assembly are symmetrically arranged and parallel to each other on both sides of the gear 6. The gear 6 meshes with the two racks 53 at the same time. The gear 6 and the two racks 53 meshing with it provide transmission for the movement of the two clamping members 5. The lower end faces of the gears 6 below all the clamping assemblies are collinear with the center lines parallel to the length direction of the crossbeam 1.

[0026] The lower end face of the gear 6 is provided with a set of winding post groups, which have two winding posts 61. The two winding posts 61 are symmetrical about the center of the lower end face of the gear 6. A steel cable 7 is connected to the lower end face of the gear 6. The steel cable 7 is arranged radially along the gear 6. There is an angle α between the steel cable 7 and the center line of the end face of the gear 6 that is parallel to the length direction of the crossbeam 1. This angle α is an acute angle. The steel cable 7 passes around the two winding posts 61. All gears 6 below the clamping components are connected to the same steel cable 7. That is, the same steel cable 7 snakes around all the winding posts 61 on the lower end face of the gear 6. The two ends of the steel cable 7 are respectively connected to the tensioning component. The tensioning component has a tensioning plate 9 and a tensioning plate 9. The tensioning screw 10 and tensioning sleeve 11 are provided. The steel cable 7 is fixedly connected to the tensioning plate 9. The tensioning screw 10 is provided on the side of the tensioning plate 9 near the fixing member 3. The tensioning sleeve 11, which can rotate relative to the fixing member 3, is provided on the side of the fixing member 3 near the tensioning plate 9. The tensioning screw 10 and the tensioning sleeve 11 are threadedly connected. In this embodiment, a sliding groove 83 is provided on the base plate 2, and a slider 54 is provided at the lower end of the tensioning plate 9. The slider 54 at the lower end of the tensioning plate 9 slides and engages with the sliding groove 83 on the base plate 2. Rotating the tensioning sleeve 11 can make the tensioning plate 9 move in the direction of approaching or moving away from the fixing member 3. During the movement, the slidingly engaged slider 54 and the sliding groove 83 play a guiding role. When the tensioning plate 9 is close to the fixing member 3, the steel cable 7 is tightened; when the tensioning plate 9 is away from the fixing member 3, the steel cable 7 is relaxed. When the steel cable 7 is tightened, due to the existence of the angle α between the steel cable 7 and the center line of the gear 6 which is parallel to the length direction of the crossbeam 1, the steel cable 7 generates torque on the gear 6 during the tightening process, thereby causing the gear 6 to rotate. The gear 6 drives the two racks 53 to move, thereby causing the vertical parts 51 of the two clamping members 5 to move in the direction close to the crossbeam 1, so that the vertical parts 51 of the two clamping members 5 clamp the crossbeam 1 from both sides.

[0027] In this embodiment, the fixing member 3 is a U-shaped plate. When the fixing member 3 is fixedly connected to the wall or column at both ends of the crossbeam 1, the crossbeam 1 is inserted into the groove of the U-shaped plate.

[0028] During installation, first clean and level both sides and the bottom surface of the beam 1 to be reinforced. Then, design reinforcement points on the beam 1. Simultaneously, mark the installation positions of the support components 8 on the base plate 2 according to the reinforcement points on the beam 1. Next, fix the fabricated support components 8 to the marked installation positions on the base plate 2. When fabricating the support components 8, the gear 6 can be directly installed inside the support component 8. Then, fix the support component 8 with the gear 6 to the base plate 2. Fix the fixing components 3 to the walls or columns at both ends of the beam 1 using expansion bolts. Then, erect the base plate 2 between the two fixing components 3. When erecting the base plate 2, the upper end of the support plate 81 of the support component 8 on the base plate 2 should be flush with the bottom surface of the beam 1. Afterward, erect arched struts as lower support components 4 below the base plate 2. Multiple arched struts can be erected below the base plate 2 according to the cross-sectional width of the beam 1, and these multiple arched struts can be connected by connecting rods, thereby effectively enhancing the support of the lower support component 4 to the base plate 2. After the lower support 4 is installed, clamp the two clamping parts 5 on both sides of the crossbeam 1. The horizontal part 52 of the clamping part 5 passes through the cavity below the support plate 81 of the support member 8, and the rack 53 at the lower end of the horizontal part 52 of the clamping part 5 meshes with the gear 6 to realize the installation of the gear 6 rack 53. Push the two clamping parts 5 from the right outward to the inward so that the vertical part 51 of the clamping part 5 fits against both sides of the crossbeam 1. When installing the gear 6 and rack 53, pay attention to the position of the winding post 61 on the gear 6. Moreover, when installing the clamping part 5, the clamping part 5 can be temporarily fixed to the crossbeam 1 from the upper end of the crossbeam 1. After all clamping components are installed, the steel cable 7 is serpentinely wound around the winding posts 61 on all the gears 6, and fixedly connected to the tensioning plates 9 at both ends of the steel cable 7. The tensioning screws 10 on the tensioning plates 9 are connected to the tensioning sleeves 11 on the fixing parts 3. Finally, the tensioning sleeves 11 are rotated, causing the tensioning plates 9 to move closer to the fixing parts 3. The tensioning plates 9 tighten the steel cable 7, and the steel cable 7 generates torque on the gears 6 during the tightening process, causing the gears 6 to rotate. The gears 6 drive the two racks 53 to move, thereby causing the vertical parts 51 of the two clamping parts 5 to move closer to the crossbeam 1, so that the vertical parts 51 of the two clamping parts 5 clamp the crossbeam 1 from both sides. At this point, the installation and construction of reinforcing the crossbeam 1 using this invention is completed.

[0029] like Figure 8 As shown, in this embodiment, the number of winding post groups on the lower end face of the gear 6 can be two or more groups. Each winding post group has two winding posts 61, and the two winding posts 61 in each group are centrally symmetrical about the center of the lower end face of the gear 6. Each winding post group corresponds to a steel cable 7, which passes around the two centrally symmetrical winding posts 61 of its corresponding winding post group. The arrangement of multiple steel cables 7 can effectively increase the torque applied to the gear 6 by the steel cables 7 and improve the resistance of the steel cables 7 to the lateral force of the crossbeam 1.

[0030] Example 2: like Figure 9 As shown, the following differences are observed in the repetition of Embodiment 1: In this embodiment, the lower support rod below the base plate 2 is a tie rod. The tie rod connects the base plate 2 to the wall or column, and tie rods are provided at both ends of the base plate 2. One end of the tie rod is fixedly connected to the base plate 2, and the other end is fixedly connected to the wall or column. The tie rod can also support the base plate 2 from the lower end.

[0031] Example 3: like Figure 10 As shown, the following differences are observed in the repeat of Embodiment 1: In this embodiment, the lower end of the gear 6 is provided with a threading post 62 that is coaxial with the gear 6 and extends downward. The threading post 62 has a threading hole 63 that passes through it radially. The axis of the threading hole 63 is parallel to the lower end face of the gear 6, and the axis of the threading hole 63 intersects with the axis of the gear 6. The steel cable 7 is threaded through the threading hole 63.

[0032] Of course, there can be multiple wire holes 63 in this embodiment. One wire hole 63 can be used to thread one steel cable 7, so that multiple steel cables 7 can apply torque to the gear 6, thereby improving the resistance of the steel cable 7 to the lateral force of the crossbeam 1.

[0033] It should be noted that the above embodiments are illustrative of the technical solutions of the present invention and not limiting thereof. Equivalent substitutions or other modifications made by those skilled in the art based on the prior art, as long as they do not exceed the concept and scope of the technical solutions of the present invention, should be included within the scope of the claims of the present invention.

Claims

1. A reinforcement device based on a building structural beam, characterized in that: include: The reinforcement frame has a base plate (2) and fasteners (3). The base plate (2) is arranged below the crossbeam (1) and along the length of the crossbeam (1). The two ends of the base plate (2) are fixedly connected to the walls or columns at both ends of the crossbeam (1) by the fasteners (3). The clamping assembly has two clamping members (5) symmetrically arranged on both sides of the crossbeam (1). Each clamping member (5) has a vertical part (51) that fits against the side of the crossbeam (1) and a horizontal part (52) that is perpendicular to the vertical part (51). The horizontal part (52) is connected to the lower end of the vertical part (51). The vertical parts (51) of the two clamping members (5) can move in a direction close to or away from the crossbeam (1). A gear and rack assembly provides transmission for the movement of two clamping members (5). The gear (6) is located below the clamping assembly, and the rack (53) is located at the lower end of the horizontal portion (52) of the clamping member (5). The rack (53) is arranged along the cross-sectional width direction of the crossbeam (1). The racks (53) at the lower ends of the horizontal portions (52) of the two clamping members (5) are symmetrically arranged and parallel to each other on both sides of the gear (6). The gear (6) meshes with both racks (53) simultaneously. The steel cable assembly has a steel cable (7) and tensioning components fixedly installed at both ends of the steel cable (7). The steel cable (7) is located below the crossbeam (1). The steel cable (7) is connected to the end face of the gear (6) and the steel cable (7) is arranged radially along the gear (6). The steel cable (7) is connected to the fixing member (3) through the tensioning components. The steel cable (7) can be tensioned through the tensioning components. When the tensioning assembly tightens the steel cable (7), the steel cable (7) drives the gear (6) to rotate, thereby causing the two racks (53) to move relative to each other, which in turn causes the vertical parts (51) of the two clamping parts (5) to move in the direction close to the crossbeam (1), so that the clamping parts (5) clamp the crossbeam (1). It also includes a support member (8), which has a support plate (81) that fits against the bottom surface of the crossbeam (1) and a connecting part (82) that connects the support plate (81) and the base plate (2). The top surface of the horizontal part (52) of the clamping member (5) fits against the bottom surface of the support plate (81). The gear (6) is disposed in the support member (8) and is rotatably connected to the support member (8). The support plate (81) is provided with connecting parts (82) on both sides along the length direction of the crossbeam (1). The connecting parts (82) are arc-shaped structures. The connecting parts (82) on both sides of the support plate (81) and the support plate (81) form an arched support member (8). The connecting parts (82) are provided with through holes for passing through the steel cable (7). The gear (6) has at least one set of winding post groups on its lower end face. Each set of winding post groups has two winding posts (61). The two winding posts (61) are symmetrical about the center of the lower end face of the gear (6). The lower end face of the gear (6) is connected to at least one steel cable (7). One steel cable (7) corresponds to one set of winding post groups, and one steel cable (7) passes around the two symmetrical winding posts (61) of the corresponding winding post group. Alternatively, the lower end of the gear (6) is provided with a threading post (62) that is coaxial with the gear (6) and extends downward. The threading post (62) has at least one threading hole (63) that passes through it radially. The axis of the threading hole (63) is parallel to the lower end face of the gear (6), and the axis of the threading hole (63) intersects the axis of the gear (6). The steel cable (7) is threaded in the threading hole (63). The number of clamping components is multiple, and the multiple clamping components are equidistantly distributed along the length direction of the crossbeam (1). The lower end face of the gear (6) below all the clamping components is collinear with the center line parallel to the length direction of the crossbeam (1). All the gears (6) are connected to at least the same steel cable (7).

2. The reinforcement device based on a building structure beam according to claim 1, characterized in that: The bottom surface of the support plate (81) is provided with two parallel sliding grooves (83), and the horizontal part (52) of the clamping member (5) is provided with an upwardly protruding slider (54). The slider (54) is located in the sliding groove (83), and the slider (54) and the sliding groove (83) cooperate with each other to slide.

3. The reinforcement device based on a building structure beam according to claim 1, characterized in that: The width of the support member (8) is smaller than the cross-sectional width of the beam (1), and an elastic member (12) is provided between the side of the support plate (81) along the width direction of the beam (1) and the vertical part (51) of the clamping member (5).

4. A reinforcement device based on a building structure beam according to any one of claims 1 to 3, characterized in that: The tensioning assembly has a tensioning plate (9), a tensioning screw (10), and a tensioning sleeve (11). The steel cable (7) is fixedly connected to the tensioning plate (9). The tensioning plate (9) is provided with a tensioning screw (10) on the side near the fixing member (3). The fixing member (3) is provided with a tensioning sleeve (11) that can rotate relative to the fixing member (3) on the side near the tensioning plate (9). The tensioning screw (10) and the tensioning sleeve (11) are threadedly connected. Rotating the tensioning sleeve (11) can make the tensioning plate (9) move in the direction of approaching or moving away from the fixing member (3).

5. A reinforcement device based on a building structure beam according to any one of claims 1 to 3, characterized in that: The reinforcement frame also includes a lower support (4), which is located below the base plate (2) and connects the base plate (2) to the wall or column. The lower support (4) is a tie rod, with one end connected to the base plate (2) and the other end connected to the wall or column. The walls or columns at both ends of the beam (1) are connected to the base plate (2) through the tie rod. Alternatively, the lower support (4) is an arched support rod, with both ends connected to the walls or columns at both ends of the beam (1). The arched top of the arched support rod is connected to the base plate (2).

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