Convenient bridge support and using method thereof

Abstract

The invention discloses a convenient bridge support and a using method thereof, and belongs to the technical field of bridge construction, the convenient bridge support comprises a support body, an upper limiting assembly is arranged at the top of the support body, a lower limiting assembly is arranged at the bottom of the support body, and an isolation ring is arranged on the outer surface, between the upper limiting assembly and the lower limiting assembly, of the support body; the support body comprises an upper sealing plate and a lower sealing plate, the upper sealing plate and the upper limiting assembly are installed, the lower sealing plate and the lower limiting assembly are installed, multiple layers of stiffening steel plates are arranged between the upper sealing plate and the lower sealing plate, and polyurethane mixtures are arranged between the multiple layers of stiffening steel plates. According to the convenient bridge support and the using method thereof, the convenient bridge support has the advantages of being convenient to install, easy to maintain, resistant to aging and collision and high in bearing capacity, rapid assembly without welding and bolt tightening connection is achieved through inserting fit of the limiting bosses and the limiting holes, and the service life of the bridge support is prolonged. The problems that a traditional rubber support is complex in installation, prone to damage and short in service life are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge construction, in particular to a convenient bridge support and a use method thereof. BACKGROUND

[0002] In the field of bridge support technology, two main forms of plate rubber support and shock insulation rubber support are generally used traditionally. Although the plate rubber support has simple structure and is convenient to install, it lacks shock insulation function and is only suitable for small and medium span bridges with low seismic intensity. Although the shock insulation rubber support has good shock insulation performance, its installation usually depends on bolt connection or on-site welding, which is complex, long in construction period, high in maintenance cost and high in technical requirements for construction personnel. In addition, the rubber material of the two types of supports is easy to be damaged on the surface due to bumping during transportation and installation, and early damage may occur due to stress concentration in use. At the same time, the rubber is exposed to the natural environment for a long time, is affected by load, ozone, ultraviolet rays, rainwater and temperature change, is easy to age and crack, and is difficult to meet the increasing requirements of modern transportation infrastructure for durability, bearing capacity and maintenance convenience. SUMMARY

[0003] In view of the problems in the prior art, the present application provides a convenient bridge support and a use method thereof, which has the advantages of convenient installation, simple maintenance, aging resistance, bump resistance and high bearing capacity, and realizes rapid assembly without welding and bolts through the insertion and cooperation of the limiting boss and the limiting hole, so as to solve the problems of complex installation, easy damage and short service life of the traditional rubber support.

[0004] The technical scheme of the present application is as follows: In a first aspect of the present application, a convenient bridge support is provided, which comprises a support body, an upper limiting assembly is arranged at the top of the support body, a lower limiting assembly is arranged at the bottom of the support body, and an isolation ring is arranged on the outer surface of the support body between the upper limiting assembly and the lower limiting assembly. The support body comprises an upper sealing plate and a lower sealing plate, the upper sealing plate is detachably installed with the upper limiting assembly, the lower sealing plate is detachably installed with the lower limiting assembly, and a plurality of layers of stiffened steel plates are arranged between the upper sealing plate and the lower sealing plate, and polyurethane mixture is arranged between each layer of the plurality of layers of stiffened steel plates. In some embodiments of the present application, the upper limiting assembly comprises an upper anchor rod and an upper limiting steel plate, one end of the upper anchor rod is pre-buried in an upper beam body, and the other end of the upper anchor rod is fixedly connected with the upper limiting steel plate. The lower limiting assembly comprises a lower anchor rod and a lower limiting steel plate, one end of the lower anchor rod is pre-buried in a lower cushion stone, and the other end of the upper anchor rod is fixedly connected with the lower limiting steel plate. In some embodiments of the present application, the upper sealing plate is provided with a limiting boss, the upper limiting steel plate is provided with a limiting hole matched with the limiting boss, and the limiting boss and the limiting hole are inserted and matched to form a shear-resistant and anti-skid structure. The lower sealing plate is also provided with a limiting boss, the lower limiting steel plate is provided with a limiting hole matched with the limiting boss, and the limiting boss and the limiting hole are inserted and matched to form a shear-resistant and anti-skid structure. In some embodiments of the present application, the limiting hole is provided as a through hole or a blind hole. In some embodiments of the present application, the number of the limiting bosses is at least one, the number of the limiting holes corresponds to the number of the limiting bosses, and the arrangement positions of the limiting holes correspond to the arrangement positions of the limiting bosses. In some embodiments of the present application, the limiting boss and the upper sealing plate are provided as an integral structure or a separable structure connected in a detachable manner, and the limiting boss and the lower sealing plate are provided as an integral structure or a separable structure connected in a detachable manner. In some embodiments of the present application, the horizontal cross-sectional shape of the limiting boss is circular, square, elliptical or polygonal. In some embodiments of the present application, the horizontal cross-sectional shape of the support body is circular, square or rectangular. In some embodiments of the present application, the isolating ring is made of an elastic material. In the second aspect of the present application, a use method of the convenient bridge support is provided, which comprises: Embedding the lower limiting assembly in the cushion stone; Hoisting the support body so that the limiting boss at the lower part of the support body is aligned with and falls into the limiting hole of the lower limiting steel plate; Hoisting the upper limiting assembly so that the limiting hole of the upper limiting steel plate is aligned with and falls onto the limiting boss at the upper part of the support body; Building a beam body template and pouring concrete to form a beam body pre-embedded with the upper limiting assembly; When replacing the support, after jacking up the upper beam body, the old support body is removed, and then the new support body is installed according to the above steps.

[0005] The one or more technical solutions of the present application have the following beneficial effects: The present application adopts polyurethane mixture and multi-layer stiffened steel plate vulcanization bonding to form the support body, the polyurethane mixture has higher mechanical strength, excellent compression permanent deformation resistance and better ozone resistance and weather resistance compared with traditional rubber, the multi-layer structure formed by the combination of the polyurethane mixture and the multi-layer stiffened steel plate effectively reduces the shock and improves the overall structural strength and toughness, solves the core defects of insufficient bearing capacity and easy aging of traditional rubber supports due to environmental influence, and greatly prolongs the service life.

[0006] By setting limiting bosses on the upper and lower sealing plates and opening corresponding limiting holes on the upper and lower limiting steel plates, a plug-in anti-shear and anti-slip structure is formed, which completely replaces the traditional welding or bolt connection method. This eliminates the need for complicated fastening operations when installing the support, and achieves fast and accurate alignment and assembly, greatly simplifying the construction process and reducing the difficulty and cost of installation and subsequent replacement and maintenance.

[0007] The insulating ring, made of elastic material, wraps around the surface of the support body and acts as a buffer during transportation and installation to prevent damage from bumps and knocks. During use, it effectively isolates the support from environmental erosion such as rainwater and ultraviolet rays, significantly delaying the aging of the support and extending its service life. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of a convenient bridge support provided in Embodiment 1 of the present invention.

[0009] In the diagram: 1. Beam; 2. Upper anchor bolt; 3. Upper limit steel plate; 4. Upper sealing plate; 5. Stiffening steel plate; 6. Polyurethane mixture; 7. Lower sealing plate; 8. Lower limit steel plate; 9. Lower anchor bolt; 10. Pad stone; 11. Limiting hole; 12. Limiting boss; 13. Isolation ring. Detailed Implementation

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Example 1 In a typical embodiment of the present invention, such as Figure 1 As shown, a convenient bridge bearing is proposed, including a bearing body, an upper limit component at the top of the bearing body, a lower limit component at the bottom of the bearing body, and an isolation ring 13 on the outer surface of the bearing body between the upper limit component and the lower limit component. The support body includes an upper sealing plate 4 and a lower sealing plate 7. The upper sealing plate 4 and the upper limit component are detachably installed, and the lower sealing plate 7 and the lower limit component are detachably installed. Multiple layers of stiffening steel plates 5 are provided between the upper sealing plate 4 and the lower sealing plate 7, and polyurethane mixture 6 is provided between each layer of the multiple layers of stiffening steel plates 5. The bearing body consists of an upper sealing plate 4, a lower sealing plate 7, and multiple layers of reinforcing steel plates 5 sandwiched in the middle. Polyurethane mixture 6 is filled between the layers of reinforcing steel plates 5 and then vulcanized and bonded into a single structure. This directly improves the mechanical properties of the bearing. Compared to traditional rubber, polyurethane mixture 6 has higher mechanical strength, excellent resistance to compression set, and better ozone and weather resistance. The combination of polyurethane mixture 6 and the multiple layers of reinforcing steel plates 5 solves the core defects of traditional rubber bearings, such as insufficient load-bearing capacity and susceptibility to aging due to environmental factors, significantly extending its service life.

[0012] The isolation ring 13 is wrapped outside the support body. During transportation and hoisting, the elastic isolation ring 13 can effectively buffer accidental impact, prevent the internal polyurethane mixture 6 and the surface of the sealing plate from being damaged, and isolate the direct erosion of rain, ultraviolet rays and ozone during use, greatly delaying the material aging process and significantly improving the environmental durability of the support.

[0013] By setting the upper sealing plate 4 and the upper limiting assembly detachable installation, the lower sealing plate 7 and the lower limiting assembly detachable installation, the installation interface paradigm without intermediate bolt or welding connection is established, the installation is convenient, and the maintenance is simple.

[0014] The upper limiting assembly includes the upper anchor rod 2 and the upper limiting steel plate 3. One end of the upper anchor rod 2 is embedded in the upper beam body 1, and the other end of the upper anchor rod 2 is fixedly connected with the upper limiting steel plate 3. The lower limiting assembly includes the lower anchor rod 9 and the lower limiting steel plate 8. One end of the lower anchor rod 9 is embedded in the lower cushion stone 10, and the other end of the upper anchor rod 2 is fixedly connected with the lower limiting steel plate 8. The upper anchor rod 2 is embedded in the upper beam body 1, and the lower anchor rod 9 is embedded in the lower cushion stone 10, so that the upper limiting assembly and the lower limiting assembly can be firmly combined with the bridge structure as a whole, ensuring reliable transmission of the support system force. At the same time, this structure of embedded anchor rod and limiting steel plate provides a precise and stable installation base and connection interface for the support body, which can realize quick alignment and insertion without the need for on-site drilling and fastening, further enhancing the reliability and convenience of installation.

[0015] The upper sealing plate 4 is provided with a limiting boss 12, the upper limiting steel plate 3 is provided with a limiting hole 11 matched with the limiting boss 12, and the limiting boss 12 and the limiting hole 11 are inserted and matched to form a shear-resistant anti-skid structure. The lower sealing plate 7 is also provided with a limiting boss 12, the lower limiting steel plate 8 is provided with a limiting hole 11 matched with the limiting boss 12, and the limiting boss 12 and the limiting hole 11 are inserted and matched to form a shear-resistant anti-skid structure.

[0016] The traditional on-site welding or bolt tightening process required by the conventional seismic isolation support is completely cancelled. During installation, the upper limiting boss 12 and the lower limiting boss 12 of the support body are respectively aligned with the limiting hole 11 of the upper limiting steel plate 8 and the lower limiting steel plate 8, and then they are simply dropped down to complete the preliminary positioning and shear connection, which is extremely fast, requires low skill of workers, and avoids the quality hidden danger caused by welding heat effect or uneven bolt fastening.

[0017] The limiting hole 11 is provided as a through hole or a blind hole. The through hole is convenient for processing and checking the alignment, and sometimes it is beneficial for drainage or ventilation; the blind hole can provide a better end pressure bearing surface and prevent foreign matter from falling completely into the hole bottom.

[0018] The number of the limiting boss 12 is set to at least one, the number of the limiting hole 11 corresponds to the number of the limiting boss 12, and the setting position of the limiting hole 11 corresponds to the setting position of the limiting boss 12.

[0019] In this way, the shear and anti-skid performance and the anti-torsion performance of the connection can be significantly enhanced. The single limiting boss 12 mainly provides one-way or central shear, and the multiple limiting bosses 12 are regularly distributed, such as symmetrically distributed, to form multi-directional constraint, more effectively resist horizontal forces and accidental torques from different directions, and make the stress of the support more uniform and stable, especially suitable for large-span or complex stress bridges, and improve the safety redundancy and working condition adaptability of the product.

[0020] The limiting boss 12 is arranged in an integral structure or a detachable and separated structure with the upper sealing plate 4, and the limiting boss 12 is arranged in an integral structure or a detachable and separated structure with the lower sealing plate 7.

[0021] It can be understood that the integral structure, such as casting or machining together with the sealing plate, has high strength, good integrity, fewer parts, and high reliability; and the detachable and separated structure, such as connection through threads, buckles and the like, is convenient for separately replacing the worn limiting boss 12 or replacing the limiting boss 12 of different specifications for different projects, reduces the manufacturing precision requirement and maintenance cost, and improves the standardization and generalization level of the parts, which can be selected according to the actual working condition.

[0022] The horizontal cross-sectional shape of the limiting boss 12 is circular, square, oval or polygonal.

[0023] The circular shape is convenient to process and has good alignment tolerance; the square or polygonal shape can provide more definite anti-torsion positioning and stronger shear resistance. This diversity design allows the operator to select the most suitable shape according to the specific shear resistance, anti-torsion and installation alignment requirements, and optimizes the performance of the support connection joint.

[0024] The horizontal cross-sectional shape of the support body is circular, square or rectangular. The support body with multiple shapes can adapt to bridge piers (abutments 10) and beam bodies 1 with different cross-sectional shapes. The circular support is uniformly stressed; the rectangular (square or rectangular) support can better utilize the pier top surface space and has higher compatibility with the rectangular bearing platform.

[0025] The isolation ring 13 is made of elastic material. The elastic material, such as weather-resistant elastomer and rubber, can effectively absorb impact energy and tightly wrap the support body without cracking, continuously playing the isolation and protection role, the elastic isolation ring 13 is also convenient to install, and has a certain self-sealing effect, further blocking the invasion of water and pollutants, thereby long-term maintaining the impact resistance and environmental aging resistance protection effect.

[0026] In the second aspect of the present application, a method for using the convenient bridge support is provided, comprising: Embed the lower limiting assembly in the cushion stone 10; Hoist the support body, so that the limiting boss 12 at the lower part of the support body is aligned with and falls into the limiting hole 11 of the lower limiting steel plate 8; Hoist the upper limiting assembly, so that the limiting hole 11 of the upper limiting steel plate 3 is aligned with and falls into the limiting boss 12 at the upper part of the support body; Build the formwork of the beam body 1 and pour the concrete to form the beam body 1 with the pre-embedded upper limiting assembly; When replacing the support, after jacking up the upper beam body 1, the old support body is removed, and then the new support body is installed according to the above steps.

[0027] The above describes the specific embodiments of the present application in conjunction with the drawings, but is not a limitation on the protection scope of the present application. It should be understood by those skilled in the art that various modifications or changes made by those skilled in the art on the basis of the technical solutions of the present application without creative labor are still within the protection scope of the present application.

Claims

1. A convenient bridge bearing, characterized in that, The support body includes an upper limit component at its top and a lower limit component at its bottom. An isolation ring is provided on the outer surface of the support body between the upper limit component and the lower limit component. The support body includes an upper sealing plate and a lower sealing plate. The upper sealing plate and the upper limit assembly are detachably installed, and the lower sealing plate and the lower limit assembly are detachably installed. Multiple layers of stiffening steel plates are provided between the upper sealing plate and the lower sealing plate, and polyurethane mixture is provided between each layer of the multiple layers of stiffening steel plates.

2. The convenient bridge bearing as described in claim 1, characterized in that, The upper limit assembly includes an upper anchor rod and an upper limit steel plate. One end of the upper anchor rod is pre-embedded in the upper beam, and the other end of the upper anchor rod is fixedly connected to the upper limit steel plate. The lower limit assembly includes a lower anchor rod and a lower limit steel plate. One end of the lower anchor rod is pre-embedded in the lower pad stone, and the other end of the upper anchor rod is fixedly connected to the lower limit steel plate.

3. A convenient bridge bearing as described in claim 2, characterized in that, The upper sealing plate is provided with a limiting boss, and the upper limit steel plate is provided with a limiting hole that mates with the limiting boss. The limiting boss and the limiting hole are inserted into each other to form a shear-resistant and anti-slip structure. The lower sealing plate is also provided with a limiting boss, and the lower limiting steel plate is provided with a limiting hole that mates with the limiting boss. The limiting boss and the limiting hole are inserted and engaged to form a shear-resistant and anti-slip structure.

4. A convenient bridge bearing as described in claim 3, characterized in that, The limiting hole is configured as a through hole or a blind hole.

5. A convenient bridge bearing as described in claim 3, characterized in that, The number of limiting bosses is set to at least one, the number of limiting holes corresponds to the number of limiting bosses, and the setting position of the limiting holes corresponds to the setting position of the limiting bosses.

6. A convenient bridge bearing as described in claim 3, characterized in that, The limiting boss and the upper sealing plate are configured as an integral structure or a detachable structure; the limiting boss and the lower sealing plate are configured as an integral structure or a detachable structure.

7. A convenient bridge bearing as described in claim 3, characterized in that, The horizontal cross-sectional shape of the limiting boss is circular, square, elliptical, or polygonal.

8. A convenient bridge bearing as described in claim 1, characterized in that, The horizontal cross-sectional shape of the support body is circular, square, or rectangular.

9. A convenient bridge bearing as described in claim 1, characterized in that, The insulating ring is made of an elastic material.

10. A method for using a convenient bridge bearing as described in any one of claims 1-9, characterized in that, include: The lower limit component is pre-embedded in the pad stone; Hoist the support body so that the limiting boss at the bottom of the support body is aligned with and falls into the limiting hole of the lower limiting steel plate; Hoist the upper limit assembly so that the limit hole of the upper limit steel plate is aligned and falls into the limit boss on the upper part of the support body; Erect the beam formwork and pour concrete to form a beam with pre-embedded upper limit components; When replacing the support, after lifting the upper beam, remove the old support body and then install the new support body according to the above steps.

Images