An anti-overturning reinforcing structure for a rectangular single-column pier bridge

Abstract

The utility model relates to a kind of anti-overturning reinforcing structure for rectangular single-column pier bridge, belong to bridge reinforcing technical field.The anti-overturning reinforcing structure for rectangular single-column pier bridge, including steel cover beam, two first plate rubber bearings are provided on the steel cover beam;Still include reinforcing part, the quantity of reinforcing part is two groups, reinforcing part is set to the outside of first plate rubber bearing and is used to promote the bending resistance, shear resistance and tensile strength between steel cover beam and beam body;Wherein, reinforcing part includes four outer angle steel, main inclined beam and two auxiliary inclined beams, main inclined beam is set between two outer angle steel that are butt-jointed, one end of auxiliary inclined beam is set to the inside of remaining outer angle steel;The bending resistance, shear resistance and tensile strength between steel cover beam and beam body can be promoted, while limiting operation is carried out using angle steel, so that it has ductility buffering performance after being stressed, and reinforcing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of bridge reinforcement technology, and in particular to an anti-overturning reinforcement structure for rectangular single-column pier bridges. Background Technology

[0002] In recent years, various regions have seen a series of accidents involving simply supported and continuous beam bridges that have overturned and collapsed in the transverse direction. These accidents often occur suddenly without any prior warning signs, posing a significant threat. As a result, the overturning stability of bridge structures has gradually gained attention, and bridge design codes have continuously refined and improved their requirements for overturning resistance design.

[0003] A search revealed that the Chinese patent "Anti-overturning reinforcement structure for a rectangular single-column pier bridge" (authorization announcement number CN211735114U) includes a steel cap beam structure. This steel cap beam structure is located on both sides of the pier. The steel cap beam structure comprises steel corbels located on both sides of the pier's top in the transverse direction. The steel corbels on both sides are formed as a single unit by prestressed steel bars. A concrete post-cast strip connects the existing pier to the end plates of the steel corbels, making the steel corbels integral with the existing pier. An anti-overturning reinforcement support system is also included, in which support components are added to the steel corbels on both sides of the pier in the transverse direction. The bearing assembly is set between the steel cap beam and the bottom of the bridge beam to realize the force transfer between the existing bridge superstructure and the anti-overturning reinforcement structure. It can effectively improve the anti-overturning safety performance of existing rectangular single-column pier bridges, and has good construction convenience, wide applicability and good economy. However, the above method has the following defects in actual use: Angle steel is set between the plate rubber bearing and the embedded steel plate. This method has low bending, shear and tensile strength, and the angle steel has high stiffness and poor deformation force. It will suddenly break when the force exceeds the limit, and cannot provide ductile buffer, resulting in a decrease in reinforcement effect. Utility Model Content

[0004] Therefore, it is necessary to provide an anti-overturning reinforcement structure for rectangular single-column pier bridges to address the problems of low bending, shear, and tensile strength and the inability to provide ductile buffer.

[0005] An anti-overturning reinforcement structure for a rectangular single-column pier bridge includes a steel cap beam with two first plate rubber bearings on it; it also includes two sets of reinforcement components, which are located outside the first plate rubber bearings and are used to enhance the bending, shear, and tensile strength between the steel cap beam and the bridge body; wherein the reinforcement components include four outer angle steels, a main inclined beam, and two auxiliary inclined beams, the main inclined beams are located between two of the outer angle steels that are butt-jointed, one end of the auxiliary inclined beams is located inside the remaining outer angle steels, and the other end of the auxiliary inclined beams is installed on the outside of the main inclined beams and is perpendicular to them.

[0006] In one embodiment, an inner angle steel is provided on the inner side of the outer angle steel, and two second plate rubber supports are provided between the inner angle steel and the outer angle steel. The ends of the main inclined beam and the auxiliary inclined beam are respectively connected to the corresponding inner angle steel.

[0007] In one embodiment, the reinforcement also includes two vertical beams, which are installed between the main inclined beam and the auxiliary inclined beam and are in a vertical position.

[0008] In one embodiment, the main inclined beam, the auxiliary inclined beam, and the vertical beam are arranged in a triangle.

[0009] In one embodiment, both ends of the vertical beam and the end of the auxiliary inclined beam away from the inner angle steel are provided with reinforcing steel plates, and several of the reinforcing steel plates are respectively installed on the auxiliary inclined beam and the main inclined beam by bolts.

[0010] In one embodiment, a bearing pad is provided between the first plate rubber bearing and the steel cap beam. The top of the bearing pad is provided with an upper steel plate and a lower steel plate that are installed on the outside of the first plate rubber bearing. The outer angle steel at the top is installed on the outside of the upper steel plate, and the outer angle steel at the bottom is installed on the outside of the lower steel plate.

[0011] In one embodiment, the top of the upper steel plate is provided with an inclined surface, and the lower steel plate is sleeved onto the outside of the first plate rubber support and abuts against the support pad.

[0012] Beneficial effects 1. By setting up main inclined beams, auxiliary inclined beams and vertical beams, the three are arranged in multiple triangular structures between the beam body and the steel cap beam, thereby improving the bending, shear and tensile strength between the steel cap beam and the beam body; 2. By setting the inner angle steel in combination with the second plate rubber support, the inner and outer angle steels can have ductile buffering performance after being subjected to force without affecting the limiting operation of the outer angle steel, thus improving the reinforcement effect. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the upper and lower steel plates of this utility model; Figure 3 This is a schematic diagram of the main inclined beam and the auxiliary inclined beam of this utility model; Figure 4 This is a schematic diagram of the structure of the lower steel plate and the first plate-type rubber support of this utility model.

[0015] Figure label: 100. Steel cap beam; 200. First plate rubber bearing; 210. Upper steel plate; 220. Lower steel plate; 300. Reinforcing component; 310. Outer angle steel; 311. Inner angle steel; 312. Second plate rubber bearing; 320. Main inclined beam; 330. Auxiliary inclined beam; 340. Vertical beam. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0019] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0021] The following is combined Figures 1-4 This invention describes an anti-overturning reinforcement structure for rectangular single-column pier bridges.

[0022] In one embodiment, an anti-overturning reinforcement structure for a rectangular single-column pier bridge includes a steel cap beam 100 with two first plate rubber bearings 200 mounted on it; it also includes two sets of reinforcement members 300, which are located outside the first plate rubber bearings 200 and are used to enhance the bending, shear, and tensile strength between the steel cap beam 100 and the beam body; wherein, the reinforcement members 300 include four outer angle steels 310, a main inclined beam 320, and two auxiliary inclined beams 330, the main inclined beam 320 being located between two of the outer angle steels 310 that are butted together, one end of the auxiliary inclined beam 330 being located inside the remaining outer angle steels 310, and the other end of the auxiliary inclined beam 330 being installed on the outside of the main inclined beam 320 and perpendicular to it.

[0023] like Figure 2 and Figure 3 As shown, an inner angle steel 311 is provided on the inner side of the outer angle steel 310, and two second plate rubber supports 312 are provided between the inner angle steel 311 and the outer angle steel 310. The ends of the main inclined beam 320 and the auxiliary inclined beam 330 are respectively connected to the corresponding inner angle steel 311.

[0024] In this embodiment, corresponding outer angle steels 310 are used to support the main inclined beam 320 and the auxiliary inclined beam 330 respectively. Multiple triangular support structures are formed between the main inclined beam 320 and the auxiliary inclined beam 330. When the first plate rubber support 200 is subjected to force, the support structure formed by the main inclined beam 320 and the auxiliary inclined beam 330 can distribute the force, improve the bending, shear and tensile strength of the entire reinforced area. In addition, during the stress process, the setting of the inner angle steel 311 and the second plate rubber support 312 can enable the corresponding outer angle steel 310 to have ductile buffer performance after being subjected to force, extend service life and reduce the occurrence of fracture.

[0025] It should be noted that the steel cap beam 100 includes two steel brackets, a set of reinforcing anchor rods is installed between the two steel brackets, and a steel structure is installed between the steel brackets and the pier for connection.

[0026] like Figure 1 , Figure 2 and Figure 3 As shown, the reinforcement 300 also includes two vertical beams 340, which are installed between the main inclined beam 320 and the auxiliary inclined beam 330 and are in a vertical position.

[0027] Vertical beams 340 are used to enhance the structural strength between the main inclined beam 320 and the auxiliary inclined beam 330, thereby reducing the tendency of the main inclined beam 320 and the auxiliary inclined beam 330 to deform under stress.

[0028] like Figure 2 and Figure 3 As shown, the main inclined beam 320, the auxiliary inclined beam 330, and the vertical beam 340 are arranged in a triangle.

[0029] By utilizing the stability of the triangle, the reinforcement strength between the steel cap beam 100 and the beam body is enhanced, and the support is applied to the outside of the first plate rubber bearing 200, thereby increasing its resistance strength after being subjected to force.

[0030] like Figure 2 and Figure 3 As shown, both ends of the vertical beam 340 and the end of the auxiliary inclined beam 330 away from the inner angle steel 311 are provided with reinforcing steel plates. Several reinforcing steel plates are installed on the auxiliary inclined beam 330 and the main inclined beam 320 respectively by bolts.

[0031] By using reinforced steel plates, the mating area of ​​the installation zone is increased, thereby enhancing the stability of the mating zone.

[0032] like Figure 1 , Figure 2 and Figure 4 As shown, a bearing pad is provided between the first plate rubber bearing 200 and the steel cap beam 100. The top of the bearing pad is provided with an upper steel plate 210 and a lower steel plate 220 installed on the outside of the first plate rubber bearing 200. The top outer angle steel 310 is installed on the outside of the upper steel plate 210, and the bottom outer angle steel 310 is installed on the outside of the lower steel plate 220.

[0033] The support pad is connected to the lower steel plate 220 to support the entire reinforcement 300.

[0034] like Figure 1 and Figure 2 As shown, the top of the upper steel plate 210 is provided with an inclined surface, and the lower steel plate 220 is fitted onto the outside of the first plate rubber support 200 and is connected to the support pad stone.

[0035] Placing the lower steel plate 220 in a sleeve manner on the outside of the first plate rubber bearing 200 can improve the bending and shear resistance of the first plate rubber bearing 200 after it has been subjected to load.

[0036] Working principle: Install temporary supports and erect a construction platform. Install lifting equipment and corresponding supports on the top of the pier. At the bottom of the pier, combine two steel brackets into a whole, install and initially tighten high-strength threaded steel bars, lift the steel cap beam 100, place the steel cap beam 100 in place, connect the upper steel plate 210 to the bottom of the beam with butt joint connectors, and apply epoxy adhesive to ensure tight bonding. Then, install the reinforcement 300 between the upper steel plate 210 and the lower steel plate 220 in sequence. Then, pour ultra-high performance concrete into the gap between the steel cap beam 100 and the pier, and use polysulfide sealant to protect the anchor head. It should be noted that the size and number of reinforcement components 300 can be selected according to the actual reinforcement needs.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. An anti-overturning reinforcement structure for rectangular single-column pier bridges, characterized in that, include: A steel cap beam (100) is provided with two first plate rubber supports (200). It also includes a reinforcement member (300), which is in two sets. The reinforcement member (300) is located on the outside of the first plate rubber support (200) and is used to improve the bending, shear and tensile strength between the steel cap beam (100) and the beam body. The reinforcement component (300) includes four outer angle steels (310), a main inclined beam (320) and two auxiliary inclined beams (330). The main inclined beam (320) is disposed between two of the outer angle steels (310) that are butted together. One end of the auxiliary inclined beam (330) is disposed inside the remaining outer angle steels (310), and the other end of the auxiliary inclined beam (330) is installed on the outside of the main inclined beam (320) and is perpendicular to it.

2. The anti-overturning reinforcement structure for rectangular single-column pier bridges according to claim 1, characterized in that, An inner angle steel (311) is provided on the inner side of the outer angle steel (310), and two second plate rubber supports (312) are provided between the inner angle steel (311) and the outer angle steel (310). The ends of the main inclined beam (320) and the auxiliary inclined beam (330) are respectively connected to the corresponding inner angle steel (311).

3. The anti-overturning reinforcement structure for rectangular single-column pier bridges according to claim 2, characterized in that, The reinforcement component (300) also includes two vertical beams (340), which are installed between the main inclined beam (320) and the auxiliary inclined beam (330) and are in a vertical position.

4. The anti-overturning reinforcement structure for rectangular single-column pier bridges according to claim 3, characterized in that, The main inclined beam (320), the auxiliary inclined beam (330), and the vertical beam (340) are arranged in a triangle.

5. The anti-overturning reinforcement structure for rectangular single-column pier bridges according to claim 3, characterized in that, Both ends of the vertical beam (340) and the end of the auxiliary inclined beam (330) away from the inner angle steel (311) are provided with reinforcing steel plates, and several of the reinforcing steel plates are respectively installed on the auxiliary inclined beam (330) and the main inclined beam (320) by bolts.

6. The anti-overturning reinforcement structure for rectangular single-column pier bridges according to claim 1, characterized in that, A bearing pad is provided between the first plate rubber bearing (200) and the steel cap beam (100). The top of the bearing pad is provided with an upper steel plate (210) and a lower steel plate (220) installed on the outside of the first plate rubber bearing (200). The top outer angle steel (310) is installed on the outside of the upper steel plate (210), and the bottom outer angle steel (310) is installed on the outside of the lower steel plate (220).

7. The anti-overturning reinforcement structure for rectangular single-column pier bridges according to claim 6, characterized in that, The top of the upper steel plate (210) is provided with an inclined surface, and the lower steel plate (220) is sleeved on the outside of the first plate rubber support (200) and connected to the support pad stone.

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