Reinforcing device for improving bearing capacity of bridge

Abstract

The utility model relates to the technical field of bridge structure engineering, in particular to a reinforcing device for improving the bearing capacity of a bridge, which comprises a group of reinforcing mechanisms arranged at intervals below a beam plate glue line below a beam plate, and a right-angled triangular prism is matched with an auxiliary reinforcing truss foundation to provide a reinforcing supporting force at the beam plate glue line, so that the bearing capacity of the bridge is improved. When the auxiliary reinforcing truss base reinforces the beam plate body, limiting force is applied to the right-angle triangular columns in the horizontal direction, so that all the right-angle triangular columns are subjected to the action of two equal forces in the opposite directions in the transverse direction, and it is guaranteed that the right-angle triangular columns are evenly stressed in the horizontal direction. The telescopic air cylinder is perpendicular to the right-angle face of the right-angle triangular prism, resultant force is finally transmitted to the inclined face of the right-angle triangular prism according to the force composition principle, the inclined face upwards supports a beam plate glue line, an air cylinder shaft of the telescopic air cylinder can stretch out or retract back according to the actual situation, and the effect that the whole bridge deck bears upward lifting area force at any time is achieved. Reinforcement is stable, and stress is good.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge structure engineering, in particular to a reinforcement device for improving the bearing capacity of a bridge. Background Art

[0002] During the long-term use of bridges, they are subject to external prestressing, excessive load, corrosion, etc., and need to be reinforced and supported by external force. When shrinkage cracks are formed in the bridge deck or the beam-slab glue joints between the two beams and slabs, the shrinkage cracks produce shrinkage stress, which causes cracks between the two beams and slabs, greatly affecting the service life and quality of the bridge deck.

[0003] Conventionally, holes are drilled on the lower surface of the bridge body and the reinforcement plates are anchored under the bridge deck by anchors, or glue is applied to glue the carbon fiber plates or steel plates to the lower surface of the bridge body. However, this operation only works for local reinforcement of the bridge deck and cannot be used for large-area reinforcement. It requires a lot of manpower and equipment to assist, is time-consuming and labor-intensive, and the reinforcement effect is not ideal. Summary of the invention

[0004] The utility model aims to provide a reinforcement device for improving the bearing capacity of a bridge to solve the problems raised in the above-mentioned background technology. The utility model has the advantages of stable support, uniform force, and flexible adjustment of the supporting force through a telescopic cylinder to provide overall support for the bridge deck.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reinforcement device for improving the bearing capacity of a bridge, comprising a bridge body, the bridge body comprising a bridge deck and bridge piers, the bridge deck being formed by a plurality of steel crossbeams being butt-jointed and paved in sequence as beam plates, a row of two bridge piers being located at the transverse center line of the bottom surface of each bridge deck, a beam plate adhesive seam being formed between two adjacent beam plates, a group of reinforcement mechanisms being arranged at intervals under the beam plate adhesive seam under the beam plate, the reinforcement mechanisms comprising isosceles right-angled triangular columns respectively arranged along the length direction of the beam plate adhesive seam, the inclined surface of the right-angled triangular column being arranged in contact with the surface of the beam plate, the center line of the inclined surface being arranged in alignment with the beam plate adhesive seam, a horizontally arranged auxiliary reinforcement truss base being arranged between two adjacent right-angled triangular columns, the auxiliary reinforcement truss base being arranged in contact with the ground of the beam plate, the auxiliary reinforcement truss base being arranged at corresponding positions of the two bridge piers with mounting holes matching the cross section of the bridge piers, a horizontally arranged support plate being sleeved in the middle of the two bridge piers in a row, two rows of inclined telescopic cylinders being symmetrically arranged on each support plate along the length direction, the telescopic shaft ends of the telescopic cylinders being arranged perpendicularly to the right-angled surfaces of the right-angled triangular columns at corresponding positions. By setting up a right-angled triangular column and an auxiliary reinforced truss base, a reinforced support force is given at the beam-slab glue joint. When the auxiliary reinforced truss base strengthens the beam-slab body, it gives a limiting force to the right-angled triangular column in the horizontal direction, so that all right-angled triangular columns are subjected to two forces of equal magnitude in the opposite directions in the horizontal direction, ensuring that the right-angled triangular columns are uniformly stressed in the horizontal direction and remain in a fixed position. The telescopic cylinder is perpendicular to the right-angled surface of the right-angled triangular column. Through the principle of force synthesis, the resultant force is finally transmitted to the inclined surface of the right-angled triangular column, and the inclined surface supports the beam-slab glue joint upward. The cylinder shaft of the telescopic cylinder can be extended or retracted according to the actual situation, so that the entire bridge deck can be lifted upward at any time.

[0006] As a further solution of the utility model, the auxiliary reinforced truss base includes a closed bottom compartment, the compartment includes crisscrossed reinforcement ribs, and the intersection of the compartment and the right-angled triangular prism is set as a chamfered surface that matches the right-angle surface. The compartment formed by the crisscrossed reinforcement ribs not only reduces the weight and cost of the entire auxiliary reinforced truss base, but also generates a stronger support force through the hollow space of the compartment and the reinforcement body formed between the reinforcement ribs.

[0007] As a further solution of the utility model, a reinforcing rib plate is provided through the main body of the right-angled triangular prism, and the reinforcing rib plate extends from the right-angle vertex to the midpoint of the hypotenuse, and the two ends of the reinforcing rib plate are connected to the inner wall of the right-angled triangular prism. The reinforcing rib plate strengthens the inside of the right-angled triangular prism, and the right-angled triangular prism will not be deformed or damaged during long-term use, and has a longer service life.

[0008] As a further solution of the utility model, a fine-tuning hinge seat is provided at the bottom of the telescopic cylinder, and the hinge seat includes two mutually parallel hinge plates, hinge holes are provided on the hinge plates, and a damping hole corresponding to the hinge hole is provided at the bottom of the telescopic cylinder, and a hinge shaft is passed through the hinge hole, and the hinge shaft and the damping hole are matched. During the telescopic cylinder extension and retraction process, the telescopic shaft end of the telescopic cylinder and the right angle surface of the right angle triangular prism are always kept in a vertical state, and during the extension or retraction process of the telescopic shaft of the telescopic cylinder, the fine-tuning hinge seat adjusts the angle to keep the direction of the pressing force on the right angle surface of the right angle triangular prism unchanged.

[0009] As a further solution of the utility model, an electric control box is provided on the bridge pier, and a main control module and a power supply are provided in the electric control box, and the main control module is connected to the telescopic cylinder for communication, and both the main control module and the telescopic cylinder are connected to the power supply. The main control module controls the start and stop of the telescopic cylinder to ensure that the bridge deck is always supported.

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

[0011] (1) This device provides a reinforced support force at the beam-slab glue joint by setting a right-angled triangular column and an auxiliary reinforced truss base. When the auxiliary reinforced truss base reinforces the beam-slab body, it provides a limiting force in the horizontal direction to the right-angled triangular column, so that all the right-angled triangular columns are subjected to two forces of equal magnitude in opposite directions in the horizontal direction, ensuring that the right-angled triangular columns are uniformly stressed in the horizontal direction and remain in a fixed position. The telescopic cylinder is perpendicular to the right-angled surface of the right-angled triangular column. Through the principle of force synthesis, the resultant force is finally transmitted to the inclined surface of the right-angled triangular column, and the inclined surface supports the beam-slab glue joint upward. The cylinder shaft of the telescopic cylinder can be extended or retracted according to actual conditions, so that the entire bridge deck can be lifted up at any time, and the reinforcement is stable and well stressed.

[0012] (2) The bulkheads formed by the criss-cross arrangement of reinforcing ribs not only reduce the weight and cost of the entire auxiliary reinforced truss base, but also generate stronger supporting force through the hollow space of the bulkheads and the reinforcement bodies formed between the reinforcing ribs.

[0013] (3) The reinforcing rib plate strengthens the interior of the right-angled triangular column, so that the right-angled triangular column will not be deformed or damaged during long-term use, and has a longer service life.

[0014] (4) A fine-tuning hinge seat is provided at the bottom of the telescopic cylinder. During the telescopic cylinder extension and retraction process, the telescopic shaft end of the telescopic cylinder and the right-angled surface of the right-angled triangular prism are always kept in a vertical state. During the extension or retraction of the telescopic shaft of the telescopic cylinder, the fine-tuning hinge seat adjusts the angle to keep the direction of the clamping force on the right-angled surface of the right-angled triangular prism unchanged.

[0015] (5) An electric control box is provided on the bridge pier, and a main control module and a power supply are provided in the electric control box. The main control module controls the start and stop of the telescopic cylinder to ensure that the bridge deck is always supported. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is the front view of the utility model;

[0019] Figure 3 This is a schematic diagram of the right-angled triangular prism structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the auxiliary reinforced truss base structure of the utility model.

[0021] In the figure: 1-bridge pier, 2-auxiliary reinforced truss base, 201-bulkhead, 202-reinforcement rib, 3-beam-slab, 4-beam-slab adhesive joint, 5-right-angled triangular column, 501-reinforcement rib plate, 6-telescopic cylinder, 7-support plate, 8-fine-tuning articulated seat, 801-articulated plate, 9-electric control box. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Please refer to the attached Figure 1 -Attached Figure 4A reinforcement device for improving the bearing capacity of a bridge comprises a bridge body, the bridge body comprises a bridge deck and a bridge pier 1, the bridge deck is formed by a plurality of steel beams as beams 3 which are connected and paved in sequence, a row of two bridge piers are located at the transverse center line of the bottom surface of each bridge deck, a beam-slab adhesive joint 4 is formed between two adjacent beams, the beam-slab adhesive joint will produce shrinkage and other stresses during long-term use, so that cracks are generated between the two beams, and the service life and use quality of the bridge deck are greatly affected. A group of reinforcement mechanisms are arranged at intervals under the beam-slab adhesive joint under the beam-slab, the reinforcement mechanism comprises isosceles right-angled triangular columns 5 respectively arranged along the length direction of the beam-slab adhesive joint, a reinforcing rib plate 501 is provided through the main body of the right-angled triangular column, the reinforcing rib plate extends from the right-angle vertex to the midpoint of the hypotenuse, and the two ends of the reinforcing rib plate are connected to the inner wall of the right-angled triangular column. A plurality of nested triangular stable structures are formed, and the triangular stable structures will not be deformed during long-term use. The inclined surface of the right-angled triangular column is arranged to fit the surface of the beam-slab, and the center line of the inclined surface is aligned with the beam-slab adhesive joint. The inclined surface of the right-angled triangular column provides a uniform upward supporting force to the beam-slab glue joint, and the beam-slab glue joint is subjected to the supporting force in the length direction.

[0024] A horizontally arranged auxiliary reinforcement truss base 2 is provided between two adjacent right-angled triangular columns, and the auxiliary reinforcement truss base includes a closed bottom compartment 201, and the compartment includes crisscrossed reinforcement ribs 202, and the intersection of the compartment and the right-angled triangular column is set as a chamfered surface that matches the right-angle surface. The right-angled triangular column is subjected to force and transmitted to the auxiliary reinforcement truss base, and the right-angled triangular columns arranged on both sides of the auxiliary reinforcement truss base are subjected to force at the same time. After being transmitted through the auxiliary reinforcement truss base, the horizontal extrusion forces offset each other, eliminating the effect of horizontal shear force.

[0025] The auxiliary reinforced truss base is fitted with the ground of the beam and slab. The auxiliary reinforced truss base is located at the corresponding positions of the two piers and is provided with mounting holes that match the cross-section of the piers. The upper surface of the reinforcement ribs that are criss-crossed and arranged to form the bulkhead is fitted with the lower surface of the beam and slab. Each reinforcement rib gives the beam and slab an upward supporting force. The space surrounded by several bulkheads forms a closed ring, which gives the beam and slab a small range of uniform load-bearing bodies, and the load is subdivided into blocks.

[0026] A horizontal support plate 7 is sleeved in the middle of two piers in a row, and two rows of tilted telescopic cylinders 6 are symmetrically arranged along the length direction on each support plate. An electric control box 9 is arranged on the pier, and a main control module and a power supply are arranged in the electric control box. The main control module is connected to the telescopic cylinder for communication, and the main control module and the telescopic cylinder are both connected to the power supply. Multiple electric control boxes can be set to control the movement of nearby telescopic cylinders, and one electric control box can also be set on each pier to control the movement of the telescopic cylinder at the corresponding position.

[0027] When it is found that the beam-slab or the adhesive joint of the beam-slab in a certain place is damaged or stressed and deformed, the telescopic shaft end of the telescopic cylinder is set perpendicular to the right angle surface of the right angle triangle column at the corresponding position. The main control module controls the telescopic cylinders at the corresponding position, and all the telescopic cylinders in the same row are extended synchronously at the same time, giving the first right angle triangle column an ​​equal and uniform force along the length direction. A 45° vertical support force is given to the first right angle triangle column, and a row of telescopic cylinders 6 on the opposite side of the second right angle triangle column adjacent to the first right angle triangle column are extended synchronously at the same time, giving the second right angle triangle column a symmetrical 45° vertical support force. According to the principle of force synthesis, a vertical upward support force is formed. The vertical upward support force is evenly distributed along the inclined surface of the right angle triangle column and transmitted to the beam-slab adhesive joint and the beam-slab, and at the same time, the extrusion force of the auxiliary reinforcement truss is transmitted to the beam-slab to support the entire bridge deck.

[0028] A fine-tuning hinge seat 8 is provided at the bottom of the telescopic cylinder, and the hinge seat includes two mutually parallel hinge plates 801, on which hinge holes are arranged. A damping hole corresponding to the hinge hole is provided at the bottom of the telescopic cylinder, and a hinge shaft is passed through the hinge hole, and the hinge shaft cooperates with the damping hole for damping.

[0029] When the telescopic shaft of the telescopic cylinder is extended, the bottom of the telescopic cylinder 6 rotates along the hinge seat until the telescopic shaft stops moving. The damping hole of the telescopic cylinder and the hinge shaft produce a damping force to prevent the telescopic cylinder from rotating.

[0030] When stress cracks or damage are found in multiple places on the bridge deck, the telescopic cylinders can be started simultaneously to tighten the support and reinforce the bridge.

[0031] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

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

Claims

1. A reinforcement device for improving the bearing capacity of a bridge, comprising a bridge body, the bridge body comprising a bridge deck and bridge piers (1), the bridge deck being formed by a plurality of steel cross beams as beam plates (3) being butted and paved in sequence, a row of two bridge piers being located at the transverse center line of the bottom surface of each bridge deck, characterized in that: A beam-slab adhesive joint is formed between two adjacent beam-slabs. A group of reinforcing mechanisms are arranged at intervals below the beam-slab adhesive joint (4) under the beam-slab. The reinforcing mechanisms include isosceles right-angled triangular columns (5) respectively arranged along the length direction of the beam-slab adhesive joint. The inclined surface of the right-angled triangular column is arranged to fit the surface of the beam-slab. The center line of the inclined surface is aligned with the beam-slab adhesive joint. A horizontally arranged auxiliary reinforcing truss base (2) is arranged between two adjacent right-angled triangular columns. The auxiliary reinforcing truss base is arranged to fit the ground of the beam-slab. The auxiliary reinforcing truss base is provided with mounting holes matching the cross-section of the piers at corresponding positions of the two piers. A horizontally arranged support plate (7) is sleeved in the middle of a row of two piers. Two rows of inclined telescopic cylinders (6) are symmetrically arranged on each support plate along the length direction. The telescopic shaft ends of the telescopic cylinders are arranged perpendicular to the right-angled surfaces of the right-angled triangular columns at corresponding positions.

2. The reinforcement device for improving the bearing capacity of a bridge according to claim 1, characterized in that: The auxiliary reinforced truss base (2) comprises a compartment (201) with a closed bottom, wherein the compartment comprises reinforcing ribs (202) arranged in a crisscross pattern, and the intersection of the compartment and the right-angled triangular prism is provided as a chamfered surface matching the right-angled surface.

3. The reinforcement device for improving the bearing capacity of a bridge according to claim 1, characterized in that: A reinforcing rib plate (501) is provided through the main body of the right-angled triangular prism (5), and the reinforcing rib plate extends from the right-angle vertex to the midpoint of the hypotenuse, and the two ends of the reinforcing rib plate are connected to the inner wall of the right-angled triangular prism.

4. The reinforcement device for improving the bearing capacity of a bridge according to claim 1, characterized in that: A fine-adjusting hinge seat (8) is provided at the bottom of the telescopic cylinder. The hinge seat comprises two hinge plates (801) parallel to each other. A hinge hole is provided on the hinge plate. A damping hole corresponding to the hinge hole is provided at the bottom of the telescopic cylinder. A hinge shaft is passed through the hinge hole. The hinge shaft and the damping hole are in damping cooperation.

5. The reinforcement device for improving the bearing capacity of a bridge according to claim 1, characterized in that: An electric control box (9) is provided on the bridge pier, and a main control module and a power supply are provided in the electric control box. The main control module is in communication connection with the telescopic cylinder, and both the main control module and the telescopic cylinder are connected to the power supply.

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