Reinforcing device of variable cross-section beam

Abstract

The utility model discloses a reinforcing device for a variable cross-section beam, which relates to the technical field of structural reinforcement, and comprises a reinforcing device which is arranged at the bottom of the variable cross-section beam and is used for reinforcing the variable cross-section beam, the reinforcing device comprises a fixing part, a tensioning part, a reinforcing plate, a connecting part and a traction part, when the variable cross-section beam is stressed, the stressed force is transmitted to the reinforcing plate, and the connecting part is connected with the traction part. The reinforcing plate is pulled by the two ends of the fixing part and the tensioning part, so that the bottom of the variable cross-section beam is prevented from cracking after the variable cross-section beam is stressed, and the bearing capacity of the variable cross-section beam is further improved; the traction part is arranged to decompose the stress on the beam upwards, so that the overall bearing performance of the variable cross-section beam is improved; the reinforcing device directly repairs and reinforces the variable cross-section beam to reduce economic loss caused by dismantling and rebuilding an old beam or a dangerous beam, the reinforcing technology is simple in structure, the bearing capacity of the variable cross-section beam is improved, the stress performance of the variable cross-section beam is improved, and the construction period is shortened.

Description

Technical Field

[0001] This utility model belongs to the field of structural reinforcement technology, and specifically relates to a reinforcement device for a variable cross-section beam. Background Technology

[0002] With the continuous improvement of construction technology, large-span spatial structures are widely used in buildings. However, a large number of these span buildings are approaching or exceeding their design service life, exhibiting phenomena such as bottom cracking and steel reinforcement corrosion. In particular, variable cross-section beams are more susceptible to damage due to uneven stress compared to ordinary beams, which greatly reduces the load-bearing capacity of the original structure, affects the use effect, and may even pose safety hazards.

[0003] Traditionally, the old or dangerous beams are demolished, rebuilt, or repaired and reinforced. However, demolition and reconstruction incur significant economic burdens and are time-consuming and labor-intensive. Therefore, compared to demolition and reconstruction, repair and reinforcement are more economical, environmentally friendly, and readily accepted. Currently, existing reinforcement technologies include increasing the cross-section, adding reinforcement, and external steel plate reinforcement. However, these methods present problems such as complex construction operations and severe environmental pollution when reinforcing beams with variable cross-sections. Therefore, to improve the reinforcement effect of beams with variable cross-sections, shorten the construction period, and improve their stress performance, it is urgent to design a reinforcement device specifically for beams with variable cross-sections. Utility Model Content

[0004] The purpose of this utility model is to provide a reinforcement device for variable cross-section beams. By adding a reinforcement device to the bottom of the variable cross-section beam, its stress performance and load-bearing capacity can be improved, and cracking at the bottom due to stress can be prevented from affecting its performance. The specific technical solution is as follows:

[0005] A reinforcement device for a variable cross-section beam includes a variable cross-section beam installed on a pier, wherein the variable cross-section beam is provided with a reinforcement device;

[0006] The reinforcement device includes a fixing part, a tensioning part, a reinforcing plate, a connecting part, and a traction part. The bottom of the variable cross-section beam has a receiving groove. The tensioning part is installed on the small end face of the variable cross-section beam. The tensioning part is installed in the receiving groove and near one end of the large cross-section beam. The connecting part is installed in the receiving groove. One end of the reinforcing plate is connected to the fixing part, and the other end is connected to the tensioning part. The reinforcing plate is fixedly installed in the receiving groove through the connecting part. One end of the traction part is connected to the connecting part, and the other end is installed obliquely upward on the side of the variable cross-section beam.

[0007] Preferably, the reinforcing plate is a carbon fiber plate.

[0008] Preferably, the connecting part includes a base plate, a clamping plate, and a connecting rivet. The base plate is installed in the receiving groove, and the base plate and the clamping plate are connected and fixed by the connecting rivet. The relative clamping surfaces of the base plate and the clamping plate are both rough surface structures. The reinforcing plate is clamped and installed in the receiving groove by the base plate and the clamping plate.

[0009] Preferably, the pulling part includes a connecting seat, a pulling plate, and a fixing rivet. The connecting seat is respectively installed on opposite sides of the clamping plate. One end of the pulling plate is rotatably connected to the connecting seat, and the other end is fixedly installed on the side of the variable cross-section beam by the fixing rivet.

[0010] Preferably, the tension plate is installed at an angle upwards.

[0011] Preferably, the tensioning section includes a fixed mounting plate, tension rods, a locking nut, and a fixing seat. The fixed mounting plate is fixedly mounted on the small end face of the variable cross-section beam. The fixed mounting plate has several through holes. The fixing seat is mounted on one end of the reinforcing plate. Several tension rods are welded to the outer end face of the fixing seat. The tension rods pass through the through holes. The tension rods are threaded rods. The locking nut is threadedly connected to the tension rod.

[0012] Preferably, the fixing part includes a fixing clamp and a connecting bolt. The fixing clamp is installed on one end of the reinforcing plate and is fixedly installed in the receiving groove by the connecting bolt.

[0013] Compared with existing technologies, this utility model has the following beneficial effects:

[0014] 1. This utility model provides a reinforcement device for a variable cross-section beam. When the variable cross-section beam is under stress, the stress is transmitted to the reinforcement plate, causing the reinforcement plate to undergo elastic deformation. The reinforcement plate is pulled up and down by the fixing part and the tensioning part at both ends to prevent cracking at the bottom of the variable cross-section beam after being under stress, thereby further improving the load-bearing capacity of the variable cross-section beam.

[0015] 2. The reinforcement device for variable cross-section beams provided by this utility model decomposes the force on the beam upward by setting a traction part, thereby improving the overall load-bearing capacity of the variable cross-section beam.

[0016] 3. The variable cross-section beam reinforcement device provided by this utility model utilizes direct repair and reinforcement of the variable cross-section beam to reduce the economic losses caused by demolishing and rebuilding old or dangerous beams. Moreover, the reinforcement technology has a simple structure, improves the load-bearing capacity of the variable cross-section beam, improves the stress performance of the variable cross-section beam, and shortens the construction period. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is an exploded view of the overall structure of this utility model.

[0020] Explanation of key figure labels:

[0021] 100-Pier column, 200-Variable cross-section beam, 210-Accommodation groove, 300-Reinforcing device, 310-Fixing part, 311-Fixing clamp, 312-Connecting bolt, 320-Tensioning part, 321-Fixing mounting plate, 322-Tension rod, 323-Locking nut, 324-Fixing seat, 330-Reinforcing plate, 340-Connecting part, 341-Base plate, 342-Clamping plate, 343-Connecting rivet, 350-Tensioning part, 351-Connecting seat, 352-Tensioning plate, 353-Fixing rivet. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0026] Example

[0027] like Figures 1 to 2 As shown, a reinforcement device for a variable cross-section beam includes a variable cross-section beam 200 installed on a pier 100, and a reinforcement device 300 for reinforcing the variable cross-section beam 200, wherein the reinforcement device 300 is installed on the bottom surface of the variable cross-section beam 200.

[0028] Preferably, the reinforcement device 300 includes a fixing part 310, a tensioning part 320, a reinforcing plate 330, a connecting part 340, and a pulling part 350. The bottom of the variable cross-section beam 200 is provided with a receiving groove 210. The tensioning part 320 is installed on the small end face of the variable cross-section beam 200. The tensioning part 320 is installed in the receiving groove 210 and near the large end of the variable cross-section beam 200. A plurality of connecting parts 340 are provided in the receiving groove 210. One end of the reinforcing plate 330 is connected to the fixing part 310, and the other end is connected to the tensioning part 320. The reinforcing plate 330 is fixedly installed in the receiving groove 210 through the connecting parts 340. One end of the pulling part 350 is connected to the connecting part 340, and the other end is installed obliquely upward on the side of the variable cross-section beam 200.

[0029] The traction part 350 provides an upward pulling force to the connecting part 340 to decompose the force on the variable cross-section beam 200; the reinforcing plate 330 is installed in the receiving groove 210 to pull the variable cross-section beam 200 laterally to prevent cracks from appearing at the bottom of the variable cross-section beam 200 after being stressed or exceeding its service life. The reinforcing plate 330 is used to repair the variable cross-section beam 200. It is worth mentioning that the reinforcing plate 330 is a carbon fiber plate.

[0030] In some preferred embodiments, the connecting portion 340 includes a base plate 341, a clamping plate 342, and a connecting rivet 343. The base plate 341 is installed in the receiving groove 210. Notably, the receiving groove 210 is also provided with a mounting groove, the mounting bottom surface of which is lower than the mounting bottom surface of the receiving groove 210. The base plate 341 is installed in the mounting groove, and the base plate 341 and the clamping plate 342 are connected and fixed by the connecting rivet 343. The relative clamping surfaces of the base plate 341 and the clamping plate 342 are both rough surfaces. The reinforcing plate 330 is clamped and installed in the receiving groove 210 by the base plate 341 and the clamping plate 342. The rough clamping surfaces increase the friction between the base plate 341, the clamping plate 342, and the reinforcing plate 330. The frictional force stabilizes the reinforcing plate 330 between the base plate 341 and the clamping plate 342.

[0031] In some preferred embodiments, the tensioning part 350 includes a connecting seat 351, a tensioning plate 352, and a fixing rivet 353. The connecting seat 351 is respectively installed on opposite sides of the clamping plate 342. One end of the tensioning plate 352 is rotatably connected to the connecting seat 351, and the other end is fixedly installed on the side of the variable cross-section beam 200 by the fixing rivet 353. The tensioning plate 352 is used to decompose the force on the variable cross-section beam 200 and improve the load-bearing capacity of the variable cross-section beam 200. It is worth mentioning that the tensioning plate 352 is installed obliquely upward, that is, the tensioning plate 352 forms a certain angle with the horizontal plane. The tensioning plate 352, the clamping plate 342, and the two vertical lines extended from the fixing rivet 353 form a triangular stable structure, which strengthens the variable cross-section beam 200.

[0032] In some preferred embodiments, the tensioning section 320 includes a fixed mounting plate 321, a tension rod 322, a locking nut 323, and a fixing seat 324. The fixed mounting plate 321 is fixedly mounted on the small end face of the variable cross-section beam 200 by rivets. The fixed mounting plate 321 has several through holes near its lower edge, which correspond to the receiving groove 210. The fixing seat 324 is mounted on one end of the reinforcing plate 330. Specifically, the fixing seat 324 is fixedly connected to one end of the reinforcing plate 330 near the small end of the variable cross-section beam 200. The tension rod 322 is welded to the outer end face of the fixed base 324 (or the tension rod 322 and the fixed base 324 are integral structures). The tension rod 322 passes through the through hole. It is worth mentioning that the tension rod 322 is a threaded rod. The locking nut 323 is threadedly connected to the tension rod 322 at one end that passes through the through hole. During construction, a uniform preload can be applied to multiple tension rods 322 using a synchronous tensioning tool to ensure that the reinforcing plate 330 is subjected to balanced force. One end of the reinforcing plate 330 is elastically fixed to the fixed mounting plate 321 by the locking nut 323.

[0033] In some preferred embodiments, the fixing part 310 includes a fixing clamp 311 and a connecting bolt 312. The fixing clamp 311 is installed on one end of the reinforcing plate 330, and the fixing clamp 311 is fixedly installed in the receiving groove 210 by the connecting bolt 312. The fixing part 310 fixes one end of the reinforcing plate 330 in the receiving groove 210.

[0034] When the variable cross-section beam 200 is subjected to force, the force is transmitted to the reinforcing plate 330, causing the reinforcing plate 330 to undergo elastic deformation. The fixing part 310 and the tensioning part 320 pull the reinforcing plate 330 at both ends to prevent cracking at the bottom of the variable cross-section beam 200 after being subjected to force, thereby further improving the load-bearing capacity of the variable cross-section beam 200.

[0035] When the variable cross-section beam 200 is subjected to force, the tensioning part 350 decomposes the force, and a triangular stable structure is formed between the tensioning plate 352, the clamping plate 342 and the two vertical lines extending from the fixing rivet 353. The variable cross-section beam 200 is reinforced by the stable structure.

[0036] In summary, this utility model provides a reinforcement device for a variable cross-section beam. When the variable cross-section beam is under stress, the force is transmitted to the reinforcement plate, causing the reinforcement plate to undergo elastic deformation. The fixing part and the tensioning part pull the reinforcement plate at both ends to prevent cracking at the bottom of the variable cross-section beam after being stressed, thereby further improving the load-bearing capacity of the variable cross-section beam. The reinforcement device for a variable cross-section beam provided by this utility model decomposes the force on the beam upward by setting a traction part, thereby improving the overall load-bearing performance of the variable cross-section beam. The reinforcement device for a variable cross-section beam provided by this utility model uses direct repair and reinforcement of the variable cross-section beam to reduce the economic losses caused by demolishing and rebuilding old or dangerous beams. Moreover, this reinforcement technology has a simple structure, improves the load-bearing capacity of the variable cross-section beam, improves the stress performance of the variable cross-section beam, and shortens the construction period.

[0037] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A reinforcement device for a variable cross-section beam, comprising a variable cross-section beam (200) mounted on a pier (100), characterized in that, The variable cross-section beam (200) is equipped with a reinforcing device (300); The reinforcement device (300) includes a fixing part (310), a tensioning part (320), a reinforcement plate (330), a connecting part (340), and a pulling part (350). The bottom of the variable cross-section beam (200) is provided with a receiving groove (210). The tensioning part (320) is installed on the small end face of the variable cross-section beam (200). The tensioning part (320) is installed in the receiving groove (210) and is close to one end of the variable cross-section beam (200). At the location, the connecting part (340) is installed in the receiving groove (210), one end of the reinforcing plate (330) is connected to the fixing part (310), and the other end is connected to the tensioning part (320). The reinforcing plate (330) is fixedly installed in the receiving groove (210) through the connecting part (340). One end of the tensioning part (350) is connected to the connecting part (340), and the other end is installed obliquely upward on the side of the variable cross-section beam (200).

2. The reinforcement device for a variable cross-section beam according to claim 1, characterized in that, The reinforcing plate (330) is a carbon fiber plate.

3. The reinforcement device for a variable cross-section beam according to claim 1, characterized in that, The connecting part (340) includes a base plate (341), a clamping plate (342), and a connecting rivet (343). The base plate (341) is installed in the receiving groove (210). The base plate (341) and the clamping plate (342) are connected and fixed by the connecting rivet (343). The relative clamping surfaces of the base plate (341) and the clamping plate (342) are both rough surfaces. The reinforcing plate (330) is clamped and installed in the receiving groove (210) by the base plate (341) and the clamping plate (342).

4. The reinforcement device for a variable cross-section beam according to claim 3, characterized in that, The pulling part (350) includes a connecting seat (351), a pulling plate (352), and a fixing rivet (353). The connecting seat (351) is respectively installed on the opposite two sides of the clamping plate (342). One end of the pulling plate (352) is rotatably connected to the connecting seat (351), and the other end is fixedly installed on the side of the variable cross-section beam (200) by the fixing rivet (353).

5. The reinforcement device for a variable cross-section beam according to claim 4, characterized in that, The tension plate (352) is installed at an angle upward.

6. The reinforcement device for a variable cross-section beam according to claim 4, characterized in that, The tensioning section (320) includes a fixed mounting plate (321), tension rods (322), a locking nut (323), and a fixing seat (324). The fixed mounting plate (321) is fixedly mounted on the small end face of the variable cross-section beam (200). The fixed mounting plate (321) has several through holes. The fixing seat (324) is mounted on one end of the reinforcing plate (330). Several tension rods (322) are welded to the outer end face of the fixing seat (324). The tension rods (322) pass through the through holes. The tension rods (322) are threaded rods. The locking nut (323) is threadedly connected to the tension rods (322).

7. The reinforcement device for a variable cross-section beam according to claim 6, characterized in that, The fixing part (310) includes a fixing clamp (311) and a connecting bolt (312). The fixing clamp (311) is installed on one end of the reinforcing plate (330), and the fixing clamp (311) is fixedly installed in the receiving groove (210) by the connecting bolt (312).

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