High-pressure-bearing maintenance-free energy dissipation steel support

Abstract

The invention discloses a high-pressure-bearing maintenance-free energy dissipation steel support and belongs to the technical field of bridges and building supports. A sliding wear-resisting plate is fixedly connected into a groove of a spherical crown steel lining plate, and the sliding wear-resisting plate and a support top plate form a sliding friction pair used for achieving horizontal sliding; the sliding wear-resisting plate is made of a self-lubricating wear-resisting material; the rotating sliding plate is fixedly connected into the groove of the support bottom plate, and the convex spherical surface of the spherical crown steel lining plate and the rotating sliding plate form a rotating friction pair for realizing rotating fit; the rotating sliding plate is made of one or more of a self-lubricating wear-resistant material, performance polytetrafluoroethylene, modified ultra-high molecular weight polyethylene and a modified polytetrafluoroethylene material; the convex spherical surface of the spherical crown steel lining plate is made of an anti-corrosion wear-resistant material; the guide blocks are arranged in the grooves in the two sides of the support bottom plate, the guide sliding strips are arranged in the cylindrical surface grooves of the guide blocks, the guide sliding strips and the check blocks form a guide sliding width used for guiding the sliding process of the support, and the high pressure bearing performance and the good corrosion prevention effect are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge and building supports, and in particular relates to a high-pressure-bearing, maintenance-free, energy-consuming steel support. Background Art

[0002] Steel bearings are the "joint" components that connect the upper and lower structures of bridges and are an important part of bridge structures. Their performance will directly affect the operation status and service life of the entire bridge and even the entire line. Traditional steel bearings have the following shortcomings:

[0003] 1. Friction pendulum bearings use the principle of a simple pendulum to achieve the function of seismic isolation. The bearing dissipates part of the energy through friction at the sliding interface, and converts part of the kinetic energy into potential energy through spherical swing, reducing the transmission of seismic energy to the upper structure, thereby achieving the purpose of seismic isolation. The wear-resistant plate currently used needs to rely on silicone grease lubrication, and the friction coefficient is low under silicone grease lubrication. In order to control the seismic displacement, the spherical radius is usually designed to be small. The beam body is greatly lifted under normal temperature displacement, and the expansion joint is vertically displaced and warped, affecting driving comfort; in order to avoid a large lift of the beam body under normal temperature displacement, the spherical radius is usually designed to be large, which is not conducive to controlling seismic displacement. It is also easy to shake under strong wind conditions. The displacement required for the bearing is large, and the size is large and the cost is high. In order to guide and limit, the one-way movable bearing often sets baffles on both sides of the bearing top plate to clamp on both sides of the bearing bottom plate guide mechanism, which can only meet the horizontal displacement and rotation angle of the beam body, and cannot meet the rotation function in the plane. At the same time, after the bearing turns a corner, the blocks on both sides of the top plate are in line contact with the bottom plate guide mechanism. Excessive contact stress will make it difficult for the bearing to slide, and even the top plate and the bottom plate of the bearing may get stuck, making it impossible to release the bending moment caused by the rotation of the beam plane, which is not conducive to the overall stress of the bridge.

[0004] 2. The sliding pair is an important part of the bearing. The existing wear-resistant slide plates of steel bearings are usually made of polytetrafluoroethylene slide plates, modified polytetrafluoroethylene slide plates, and modified ultra-high molecular weight polyethylene slide plates. These slide plates need to be lubricated with silicone grease, have insufficient load-bearing capacity, and the friction coefficient cannot be adjusted according to working conditions. When the silicone grease is lacking or ineffective, the wear of the slide plates accelerates rapidly, and the bearings or slide plates need to be maintained or replaced in time, which has high maintenance costs. In addition, the friction coefficient of the existing ultra-high performance polytetrafluoroethylene fluctuates greatly under low-pressure conditions, the friction coefficient is unstable, and the friction coefficient is uncontrollable.

[0005] 3. Bridge construction is distributed over a wide area with complex and changeable climatic conditions, which put forward high requirements on the corrosion resistance and performance stability of bridge bearings. Traditional steel bearings are protected by coating the outer surface of the bearings with epoxy zinc-rich paint. The normal service life is 15 to 25 years, and regular inspection and maintenance are required. During this period, major maintenance is usually performed once, and small and medium-sized maintenance is performed 2 to 3 times, which has high maintenance costs. Summary of the invention

[0006] In order to solve the technical problems existing in the above-mentioned background technology, the present invention provides a high-pressure-bearing, maintenance-free, energy-consuming steel support.

[0007] The present invention adopts the following technical scheme: a high-pressure maintenance-free energy-consuming steel support, comprising: a support top plate, a sliding wear-resistant plate, a ball crown steel lining plate, a rotating slide plate, a support bottom plate, a guide block, a guide slide bar and an anchoring assembly, the end of the support top plate has a stopper and protrudes downward, the sliding wear-resistant plate is fixedly connected to the groove of the ball crown steel lining plate, the sliding wear-resistant plate and the support top plate form a sliding friction pair for realizing horizontal sliding; the sliding wear-resistant plate is made of a self-lubricating wear-resistant material;

[0008] The rotating slide plate is fixedly connected to the groove of the support base plate, and the convex spherical surface of the spherical crown steel liner forms a rotating friction pair with the rotating slide plate to achieve rotational cooperation; the rotating slide plate is made of one or more of self-lubricating and wear-resistant materials, high-performance polytetrafluoroethylene, modified ultra-high molecular weight polyethylene, and modified polytetrafluoroethylene materials, and the convex spherical surface of the spherical crown steel liner is made of anti-corrosion and wear-resistant materials;

[0009] The guide blocks are arranged in grooves on both sides of the support bottom plate, the guide slide bars are arranged in the cylindrical grooves of the guide blocks, and the guide slide bars and the stop blocks form a guide sliding amplitude for guiding the sliding process of the support;

[0010] The outer surfaces of the support top plate and the support bottom plate are coated with graphene zinc powder paint or a combination of thermal spray metal coating and graphene zinc powder paint.

[0011] Preferably, the self-lubricating wear-resistant material comprises: one or more materials of polytetrafluoroethylene PTFE, talcum powder, titanium dioxide, copper oxide and silicon-based compounds are compounded to prepare a modified additive package, one or more materials of carbon fiber, aramid fiber, graphite and ultra-high molecular weight polyethylene are added as reinforcing modified fillers for premixing, and then compounded with a matrix nylon polymer resin powder, premixed in a mixer, and extruded by a screw extruder.

[0012] Preferably, the friction coefficient of the self-lubricating wear-resistant material is 0.02-0.08.

[0013] Preferably, the corrosion-resistant and wear-resistant material is made of one or more of nickel-phosphorus alloy, chrome plating or stainless steel.

[0014] Preferably, the rotating slide plate and the sliding wear-resistant plate are both thin-walled spherical crown type.

[0015] Preferably, the anchoring assembly is arranged on the upper side of the support top plate and the lower side of the support bottom plate.

[0016] Preferably, the stoppers are arranged on two sides or four sides of the support top plate.

[0017] Beneficial effects of the present invention:

[0018] 1. The present invention has a simple structure. By setting a horizontally rotatable guide mechanism, when the beam body of a curved bridge body is non-directionally extended and retracted or the beam body of a large-span suspension bridge or a cable-stayed bridge is horizontally rotated during torsion deformation, the guide of the steel support is prevented from getting stuck, thereby being able to well release the bending stress of the beam body.

[0019] 2. The guide slide bar can realize vertical rotation. When the support turns an angle, the guide slide bar can adapt to the rotation of the blocks on both sides of the support top plate. The guide slide bar and the blocks on both sides of the support top plate form a guide sliding range that always maintains a surface contact state. The blocks are in a uniformly distributed stress state, effectively avoiding stress concentration caused by line contact, and effectively improving the steel support's ability to resist horizontal loads.

[0020] 3. The new self-lubricating wear-resistant material is used, which has high pressure bearing capacity, good dry grinding performance, and is independent of silicone grease. The slide plate can be in a stable working state, and the friction coefficient is adjustable to meet the requirements of the friction performance of the steel support under different working conditions. At the same time, the high-pressure bearing is lightweight, and the weight of the same tonnage bearing is reduced by an average of 10-20%, reducing the use of steel and making the product cost better.

[0021] 4. The exposed surface adopts the anti-corrosion solution of graphene zinc powder coating with excellent density and corrosion resistance. The steel support has good anti-corrosion effect in harsh corrosive environment, avoiding frequent maintenance during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is a top view of the first embodiment of the present invention.

[0024] Figure 3 It is a top view of the second embodiment of the present invention.

[0025] In the accompanying drawings, the parts represented by each reference numeral are listed as follows: support top plate 1, sliding wear-resistant plate 2, ball crown steel lining plate 3, rotating slide plate 4, support bottom plate 5, guide block 6, guide slide bar 7, anchor assembly 8, and stop block 9. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the embodiments.

[0027] Embodiment 1

[0028] A high pressure-bearing maintenance-free energy-consuming steel support, such as Figure 1 and Figure 2 As shown, it includes: a support top plate 1, a sliding wear-resistant plate 2, a ball crown steel lining plate 3, a rotating slide plate 4, a support bottom plate 5, a guide block 6, a guide slide bar 7 and an anchoring assembly 8. The end of the support top plate 1 has a stop block 9 and protrudes downward. The sliding wear-resistant plate 2 is fixedly connected to the groove of the ball crown steel lining plate 3. The sliding wear-resistant plate 2 and the support top plate 1 form a sliding friction pair for realizing horizontal sliding; the sliding wear-resistant plate 2 is made of self-lubricating wear-resistant material; the rotating slide plate 4 is fixedly connected to the groove of the support bottom plate 5, and the convex spherical surface of the ball crown steel lining plate 3 forms a rotating friction pair with the rotating slide plate 4 for realizing rotational cooperation; the rotating slide plate 4 is a self-lubricating wear-resistant material, high-performance polytetrafluoroethylene, and improved The convex spherical surface of the ball crown steel lining plate 3 is made of corrosion-resistant and wear-resistant material; the guide block 6 is arranged in the grooves on both sides of the support base plate 5, and the guide slide bar 7 is arranged in the cylindrical groove of the guide block 6. The guide slide bar 7 and the block 9 form a guide sliding amplitude for guiding the sliding process of the support; the guide block 6 can be rotated in the horizontal plane of the support base plate 5. When the curved bridge body expands and contracts in an undirectional manner or the beam body rotates horizontally during the torsion deformation of a large-span suspension bridge or a cable-stayed bridge, the support top plate 1 will drive the guide block 6 to rotate along the base plate in the horizontal plane to avoid the bearing guide from getting stuck, thereby being able to release the bending stress of the beam body well. The guide slide bar 7 can realize vertical rotation inside the cylindrical groove of the guide block 6. When the support turns an angle, the guide slide bar 7 can adapt to the rotation of the blocks 9 on both sides of the support top plate 1. When the beam body undergoes lateral displacement to generate horizontal force, the guide slide bar 7 and the blocks 9 on both sides of the support top plate 1 form a guide sliding amplitude and always maintain a surface contact state. The guide block 6 and the blocks 9 on both sides of the support top plate 1 are in a uniformly distributed stress state, which effectively avoids stress concentration caused by line contact and effectively improves the support's ability to resist horizontal loads.

[0029] When the support top plate 1 is provided with blocks 9 on both sides, the support is a unidirectional movable support, and the blocks 9 on the support top plate 1 can be an integral structure or a welded combination structure or an assembled structure. When the blocks 9 on the support top plate 1 are an integral structure or a welded combination structure, the support is not provided with a shearing function; when the blocks 9 on the support top plate 1 are an assembled structure, the support can be provided with a shearing function. When the shearing function is provided, under the action of small displacements such as temperature deformation and small earthquakes, the blocks 9 on the support top plate 1 are connected by shear pins and are stuck by the support bottom plate 5 to achieve horizontal limit, and the unidirectional movable support and the bidirectional movable support can achieve sliding deformation to meet the force requirements of the bridge in the normal operation stage and under the action of low and small earthquakes; under the action of a large earthquake, the horizontal force causes the shear pin to cut at the notch, the horizontal limit shear switch is opened, and the fixed support and the unidirectional support limit direction undergo curved surface friction sliding, and the seismic isolation performance is exerted. By adjusting the position of the shear switch and the size of the shear force, the friction coefficient and friction area of ​​the sliding wear-resistant plate 2, etc., different seismic isolation and energy consumption performance of the bearing can be achieved, thereby realizing seismic graded fortification.

[0030] The outer surfaces of the support top plate 1 and the support bottom plate 5 are coated with graphene zinc powder paint or a combination of thermal spray metal coating and graphene zinc powder paint. The outer surface of the steel support can be coated with graphene zinc powder paint or thermal spray metal coating + graphene zinc powder paint according to different corrosion environments. The graphene zinc powder paint has excellent density and corrosion resistance. The adhesion of the anti-corrosion coating product reaches more than 12MPa, the scratch resistance and salt spray resistance are more than 3000h, the flexibility is 1mm, and the anti-corrosion life of the coating is increased to 30 years. It has good anti-corrosion effect in harsh corrosion environments and avoids frequent maintenance during use.

[0031] In a further embodiment, the self-lubricating wear-resistant material includes: one or more materials of polytetrafluoroethylene PTFE, talcum powder, titanium dioxide, copper oxide and silicon-based compounds are compounded to prepare a modified additive package, one or more materials of carbon fiber, aramid fiber, graphite and ultra-high molecular weight polyethylene are added as reinforcing modified fillers for premixing, and then compounded with the matrix nylon polymer resin powder, premixed by a mixer, and extruded by a screw extruder. The sliding wear-resistant plate 2 is a new type of self-lubricating wear-resistant material, and the rotating slide plate 4 can be a new type of self-lubricating wear-resistant material, high-performance polytetrafluoroethylene, modified ultra-high molecular weight polyethylene or modified polytetrafluoroethylene. It has high surface tension, and when it is subjected to external pressure or friction, relative sliding or microcracks occur, and stress is transferred, thereby reducing the friction loss of the material itself and protecting the grinding material. It is prepared by compounding one or more materials of PTFE, talcum powder, titanium dioxide, copper oxide and silicon compounds to form a modified additive package, and then adding one or more materials of carbon fiber, aramid fiber, graphite and ultra-high molecular weight polyethylene as reinforcing modified fillers for premixing, and then compounding with the matrix nylon polymer resin powder, premixing through a mixer, and extruding through a screw extruder. The new self-lubricating wear-resistant material sliding wear-resistant plate 2 has high compressive strength, super wear resistance, and can be used for a long time within 120°C and 80MPa compressive stress.

[0032] The self-lubricating and wear-resistant properties of the sliding wear-resistant plate 2 can be changed by adjusting the amount of fillers added in different proportions through different ratios, thereby obtaining different friction coefficients. Under the condition of no silicone grease lubrication, the friction coefficient of the friction material is 0.02-0.08, and it has good dry grinding performance. It does not rely on silicone grease, and the slide plate can be in a stable working state. Different friction coefficient bearings can be set according to different site types and pier heights at different locations through seismic verification, so that during an earthquake, the movable bearings generate friction through relative movement to consume seismic energy, and the piers are subjected to force in coordination, reducing the stress state of the fixed bearings and protecting the bridge piers of the fixed bearings.

[0033] Since the new self-lubricating wear-resistant material sliding wear-resistant plate 2 has the characteristics of high compressive strength and high pressure stress (long-term use under 80MPa), combined with mesh division finite element analysis, the bearing structure is refined and designed. The structure is simple and can meet the requirements of load-bearing and displacement deformation during normal operation of the bridge. At the same time, compared with the large and heavy traditional steel bearings, the high-pressure bearings are lightweight, and the weight of the same tonnage bearings is reduced by an average of 10 to 20%, reducing the use of steel and making the product cost better.

[0034] In a further embodiment, the convex spherical surface of the ball crown steel liner 3 is made of anti-corrosion and wear-resistant material, the convex spherical surface is formed by CNC machining, and is plated with nickel-phosphorus alloy, chrome-plated or coated with stainless steel. Before the nickel-phosphorus alloy or chrome-plated treatment, rolling is used to eliminate surface pores and increase surface hardness. The surface is polished to a roughness of 1.6 to improve its surface density, so that it has good anti-corrosion and wear resistance, thereby extending the life of the bearing and reducing the maintenance cost of the bearing.

[0035] In a further embodiment, the rotating slide plate 4 and the sliding wear-resistant plate 2 are both thin-walled spherical crown type. During the sliding process of the bearing, the sliding wear-resistant plate 2 and the bearing top plate 1 form a curved sliding friction pair. The friction coefficient performance of the self-lubricating wear-resistant material can be adjusted during the bearing design to meet the requirements of the bearing friction performance under different working conditions. By designing a larger spherical surface with a larger friction coefficient, the beam body can be prevented from being lifted up significantly under normal temperature displacement conditions, and the earthquake displacement can be effectively controlled, and the shaking under strong wind conditions can be reduced. The displacement of the bearing design is reduced accordingly, and the size is reduced to reduce costs. The use of a high friction coefficient wear-resistant plate generates frictional heat during the friction sliding process on the curved surface, converting part of the kinetic energy into heat energy to achieve sliding energy consumption, and part of the kinetic energy into potential energy, providing the bearing with reset capability.

[0036] In a further embodiment, the bearing top plate 1 is connected to the bridge superstructure through the anchor assembly 8, and the bearing bottom plate 5 is connected to the pier pad stone structure through the anchor assembly 8, so as to transfer the horizontal load of the bridge superstructure to the pier, ensure the firmness and stability of the steel bearing during installation and use, and prevent the steel bearing from being displaced or tilted under the action of dynamic load.

[0037] Embodiment 2

[0038] A high-pressure-bearing, maintenance-free, energy-consuming steel support, comprising: a support top plate 1, a sliding wear-resistant plate 2, a spherical crown steel lining plate 3, a rotating slide plate 4, a support bottom plate 5, a guide block 6, a guide slide bar 7 and an anchor assembly 8. The end of the support top plate 1 has a stopper 9 and protrudes downward, the sliding wear-resistant plate 2 is fixedly connected to the groove of the spherical crown steel lining plate 3, and the sliding wear-resistant plate 2 and the support top plate 1 form a sliding friction pair for realizing horizontal sliding; the sliding wear-resistant plate 2 is made of self-lubricating wear-resistant material; the rotating slide plate 4 is fixedly connected to the groove of the support bottom plate 5, and the convex spherical surface of the spherical crown steel lining plate 3 forms a rotating friction pair with the rotating slide plate 4 for realizing rotational cooperation; the rotating slide plate 4 is a self-lubricating wear-resistant material, a high-performance polymer It is made of one or more of tetrafluoroethylene, modified ultra-high molecular weight polyethylene, and modified polytetrafluoroethylene materials, and the convex spherical surface of the ball crown steel lining 3 is made of corrosion-resistant and wear-resistant materials; the guide block 6 is arranged in the grooves on both sides of the support base plate 5, and the guide slide bar 7 is arranged in the cylindrical groove of the guide block 6, and the guide slide bar 7 and the block 9 form a guide sliding amplitude for guiding the sliding process of the support; the guide block 6 can be rotated in the horizontal plane of the support base plate 5. When the curved bridge body is non-directionally expanded and contracted or the beam body of the large-span suspension bridge or cable-stayed bridge rotates horizontally during the twisting deformation process, the support top plate 1 will drive the guide block 6 to rotate along the base plate in the horizontal plane to avoid the bearing guide from getting stuck, thereby being able to release the bending stress of the beam body well. The guide slide bar 7 can realize vertical rotation inside the cylindrical groove of the guide block 6. When the support turns an angle, the guide slide bar 7 can adapt to the rotation of the blocks 9 on both sides of the support top plate 1. When the beam body undergoes lateral displacement to generate horizontal force, the guide slide bar 7 and the blocks 9 on both sides of the support top plate 1 form a guide sliding amplitude and always maintain a surface contact state. The guide block 6 and the blocks 9 on both sides of the support top plate 1 are in a uniformly distributed stress state, which effectively avoids stress concentration caused by line contact and effectively improves the support's ability to resist horizontal loads.

[0039] like Figure 3As shown, the support top plate 1 is provided with block 9 structures on four sides, and the support is a fixed support. The support top plate 1 can also be provided with a circular block 9 structure or a structure without block 9. When the support top plate 1 is provided with a circular block 9 structure, the support is a fixed support. When the block 9 structure is not provided, the support is a bidirectional movable support. The block 9 on the support top plate 1 can be an integral structure or a welded combination structure or an assembled structure. When the block 9 on the support top plate 1 is an integral structure or a welded combination structure, the support is not provided with a shearing function; the block 9 on the support top plate 1 is an assembled structure, and the support can be provided with a shearing function. When the shearing function is set, under the action of small displacements such as temperature deformation and small earthquakes, the block 9 on the support top plate 1 is connected by the shear pin and is stuck by the support bottom plate 5 to achieve horizontal limit. The one-way movable support and the two-way movable support can achieve sliding deformation to meet the force requirements of the bridge in the normal operation stage and under the action of small earthquakes; under the action of a large earthquake, the horizontal force causes the shear pin to shear at the notch, the horizontal limit shear switch is opened, and the fixed support and the one-way support limit direction have curved surface friction sliding, exerting the seismic isolation performance. By adjusting the position of the shear switch and the size of the shear force, the friction coefficient and friction area of ​​the sliding wear-resistant plate 2, etc., different seismic isolation and energy consumption performance of the support can be achieved, and seismic graded fortification can be achieved.

[0040] The outer surfaces of the support top plate 1 and the support bottom plate 5 are coated with graphene zinc powder paint or a combination of thermal spray metal coating and graphene zinc powder paint. The outer surface of the steel support can be coated with graphene zinc powder paint or thermal spray metal coating + graphene zinc powder paint according to different corrosion environments. The graphene zinc powder paint has excellent density and corrosion resistance. The adhesion of the anti-corrosion coating product reaches more than 12MPa, the scratch resistance and salt spray resistance are more than 3000h, the flexibility is 1mm, and the anti-corrosion life of the coating is increased to 30 years. It has good anti-corrosion effect in harsh corrosion environments and avoids frequent maintenance during use.

[0041] In a further embodiment, the self-lubricating wear-resistant material includes: one or more materials of polytetrafluoroethylene PTFE, talcum powder, titanium dioxide, copper oxide and silicon-based compounds are compounded to prepare a modified additive package, one or more materials of carbon fiber, aramid fiber, graphite and ultra-high molecular weight polyethylene are added as reinforcing modified fillers for premixing, and then compounded with the matrix nylon polymer resin powder, premixed by a mixer, and extruded by a screw extruder. The sliding wear-resistant plate 2 is a new type of self-lubricating wear-resistant material, and the rotating slide plate 4 can be a new type of self-lubricating wear-resistant material, high-performance polytetrafluoroethylene, modified ultra-high molecular weight polyethylene or modified polytetrafluoroethylene. It has high surface tension, and when it is subjected to external pressure or friction, relative sliding or microcracks occur, and stress is transferred, thereby reducing the friction loss of the material itself and protecting the grinding material. It is prepared by compounding one or more materials of PTFE, talcum powder, titanium dioxide, copper oxide and silicon compounds to form a modified additive package, and then adding one or more materials of carbon fiber, aramid fiber, graphite and ultra-high molecular weight polyethylene as reinforcing modified fillers for premixing, and then compounding with the matrix nylon polymer resin powder, premixing through a mixer, and extruding through a screw extruder. The new self-lubricating wear-resistant material sliding wear-resistant plate 2 has high compressive strength, super wear resistance, and can be used for a long time within 120°C and 80MPa compressive stress.

[0042] The self-lubricating and wear-resistant properties of the sliding wear-resistant plate 2 can be changed by adjusting the amount of fillers added in different proportions through different ratios, thereby obtaining different friction coefficients. Under the condition of no silicone grease lubrication, the friction coefficient of the friction material is 0.02-0.08, and it has good dry grinding performance. It does not rely on silicone grease, and the slide plate can be in a stable working state. Different friction coefficient bearings can be set according to different site types and pier heights at different locations through seismic verification, so that during an earthquake, the movable bearings generate friction through relative movement to consume seismic energy, and the piers are subjected to force in coordination, reducing the stress state of the fixed bearings and protecting the bridge piers of the fixed bearings.

[0043] Since the new self-lubricating wear-resistant material sliding wear-resistant plate 2 has the characteristics of high compressive strength and high pressure stress (long-term use under 80MPa), combined with mesh division finite element analysis, the bearing structure is refined and designed. The structure is simple and can meet the requirements of load-bearing and displacement deformation during normal operation of the bridge. At the same time, compared with the large and heavy traditional steel bearings, the high-pressure bearings are lightweight, and the weight of the same tonnage bearings is reduced by an average of 10 to 20%, reducing the use of steel and making the product cost better.

[0044] In a further embodiment, the convex spherical surface of the ball crown steel liner 3 is made of anti-corrosion and wear-resistant material, the convex spherical surface is formed by CNC machining, and is plated with nickel-phosphorus alloy, chrome-plated or coated with stainless steel. Before the nickel-phosphorus alloy or chrome-plated treatment, rolling is used to eliminate surface pores and increase surface hardness. The surface is polished to a roughness of 1.6 to improve its surface density, so that it has good anti-corrosion and wear resistance, thereby extending the life of the bearing and reducing the maintenance cost of the bearing.

[0045] In a further embodiment, the rotating slide plate 4 and the sliding wear-resistant plate 2 are both thin-walled spherical crown type. During the sliding process of the bearing, the sliding wear-resistant plate 2 and the bearing top plate 1 form a curved sliding friction pair. The friction coefficient performance of the self-lubricating wear-resistant material can be adjusted during the bearing design to meet the requirements of the bearing friction performance under different working conditions. By designing a larger spherical surface with a larger friction coefficient, the beam body can be prevented from being lifted up significantly under normal temperature displacement conditions, and the earthquake displacement can be effectively controlled, and the shaking under strong wind conditions can be reduced. The displacement of the bearing design is reduced accordingly, and the size is reduced to reduce costs. The use of a high friction coefficient wear-resistant plate generates frictional heat during the friction sliding process on the curved surface, converting part of the kinetic energy into heat energy to achieve sliding energy consumption, and part of the kinetic energy into potential energy, providing the bearing with reset capability.

[0046] In a further embodiment, the bearing top plate 1 is connected to the bridge superstructure through the anchor assembly 8, and the bearing bottom plate 5 is connected to the pier pad stone structure through the anchor assembly 8, so as to transfer the horizontal load of the bridge superstructure to the pier, ensure the firmness and stability of the steel bearing during installation and use, and prevent the steel bearing from being displaced or tilted under the action of dynamic load.

[0047] A high-pressure-bearing maintenance-free energy-absorbing steel support is provided and introduced in detail. It is worth noting that the above is only a preferred embodiment of the present invention and is not used to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, for those skilled in the art, they can still modify the technical details recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. Any equivalent replacements, modifications, etc. made within the core ideas and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high pressure-bearing maintenance-free energy-consuming steel support, comprising: The support top plate, the sliding wear-resistant plate, the ball crown steel lining plate, the rotating slide plate, the support bottom plate, the guide block, the guide slide bar and the anchor assembly, the end of the support top plate has a stopper and protrudes downward, characterized in that: The sliding wear-resistant plate is fixedly connected to the groove of the ball crown steel lining plate, and the sliding wear-resistant plate and the support top plate form a sliding friction pair for realizing horizontal sliding; the sliding wear-resistant plate is made of self-lubricating wear-resistant material; The rotating slide plate is fixedly connected to the groove of the support base plate, and the convex spherical surface of the spherical crown steel liner forms a rotating friction pair with the rotating slide plate to achieve rotational cooperation; the rotating slide plate is made of one or more of self-lubricating and wear-resistant materials, high-performance polytetrafluoroethylene, modified ultra-high molecular weight polyethylene, and modified polytetrafluoroethylene materials, and the convex spherical surface of the spherical crown steel liner is made of anti-corrosion and wear-resistant materials; The guide blocks are arranged in grooves on both sides of the support bottom plate, the guide slide bars are arranged in the cylindrical grooves of the guide blocks, and the guide slide bars and the stop blocks form a guide sliding amplitude for guiding the sliding process of the support; The outer surfaces of the support top plate and the support bottom plate are coated with graphene zinc powder paint or a combination of thermal spray metal coating and graphene zinc powder paint.

2. A high pressure bearing maintenance-free energy-consuming steel support according to claim 1, characterized in that: The self-lubricating wear-resistant material comprises: one or more materials of polytetrafluoroethylene (PTFE), talcum powder, titanium dioxide, copper oxide and silicon-based compounds are compounded to prepare a modified auxiliary agent package, one or more materials of carbon fiber, aramid fiber, graphite and ultra-high molecular weight polyethylene are added as reinforcing modified fillers for premixing, and then compounded with a matrix nylon polymer resin powder, premixed in a mixer, and extruded by a screw extruder.

3. A high pressure bearing maintenance-free energy-consuming steel support according to claim 2, characterized in that: The friction coefficient of the self-lubricating wear-resistant material is 0.02-0.

08.

4. The high pressure-bearing maintenance-free energy-consuming steel support according to claim 1 is characterized in that: The anti-corrosion and wear-resistant material is made of one or more of nickel-phosphorus alloy, chrome plating or stainless steel.

5. The high pressure-bearing maintenance-free energy-consuming steel support according to claim 1 is characterized in that: The rotating slide plate and the sliding wear-resistant plate are both thin-walled spherical crown-shaped.

6. The high pressure-bearing maintenance-free energy-consuming steel support according to claim 1 is characterized in that: The anchoring assembly is arranged on the upper side of the support top plate and the lower side of the support bottom plate.

7. The high pressure-bearing maintenance-free energy-consuming steel support according to claim 1 is characterized in that: The stoppers are arranged on two sides or four sides of the support top plate.

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