CN111021238A - Ellipsoidal anisotropic friction simple pendulum support - Google Patents
Ellipsoidal anisotropic friction simple pendulum support Download PDFInfo
- Publication number
- CN111021238A CN111021238A CN201911371921.8A CN201911371921A CN111021238A CN 111021238 A CN111021238 A CN 111021238A CN 201911371921 A CN201911371921 A CN 201911371921A CN 111021238 A CN111021238 A CN 111021238A
- Authority
- CN
- China
- Prior art keywords
- ellipsoidal
- seat plate
- pendulum support
- simple pendulum
- concave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical bearings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/36—Bearings or like supports allowing movement
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mechanical Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses an ellipsoidal anisotropic friction simple pendulum support, comprising: the top surface of the upper seat plate is a plane, and the bottom surface of the upper seat plate is an ellipsoidal concave surface; the bottom surface of the lower seat plate is a plane, and the top surface of the lower seat plate is a concave spherical curved surface; the hinged sliding block is arranged between the upper seat plate and the lower seat plate, the top surface of the hinged sliding block is an ellipsoidal convex surface matched with the ellipsoidal concave surface, and the bottom surface of the hinged sliding block is a convex spherical curved surface matched with the concave spherical curved surface. According to the ellipsoidal anisotropic friction simple pendulum support, the grooves in the lower part of the hinged sliding block and the upper part of the lower base plate are spherical surfaces, and the hinged sliding block realizes rotation in any horizontal direction through the spherical surfaces; a vertical rotating clearance is arranged between the hinged sliding block and the groove in the upper portion of the lower seat plate, vertical rotation of the hinged sliding block is achieved when the upper seat plate of the support horizontally swings, then the anisotropic seismic isolation and reduction design in the longitudinal and transverse bridge directions of the bridge is achieved, and the support is good in performance under a rapid shear friction test with the speed being more than or equal to 500 mm/s.
Description
Technical Field
The invention relates to the technical field of bridges or building components, in particular to an ellipsoidal anisotropic friction simple pendulum support for bridges or buildings.
Background
In recent years, earthquake disasters frequently occur, and the bridge structure is damaged and destroyed. The bridge is an important life line engineering structure and has an important position in earthquake prevention and disaster reduction. Once the bridge structure is damaged by earthquake, not only can serious economic loss be caused, but also great difficulty can be brought to earthquake emergency recovery and post-disaster reconstruction. Therefore, the method is particularly important for the seismic design of the bridge, and especially for the long-span bridge located in a high seismic intensity and active area, higher requirements are provided for the seismic reduction and isolation design of the bridge structure based on performance requirements.
The main idea of the seismic isolation design based on performance is to formulate corresponding performance targets aiming at different fortification levels and different structures, and through the seismic design, the seismic response of the structure under the action of the different fortification levels can meet the formulated seismic performance targets.
In traditional seismic isolation and reduction design, the commonly used seismic isolation and reduction support mainly comprises a rubber seismic isolation and reduction support and a friction pendulum support, but the rubber seismic isolation and reduction support is limited in bearing capacity, the equivalent rigidity of the rubber seismic isolation and reduction support is in inverse proportion to deformation and is in a nonlinear state, the rigidity is small when the rubber seismic isolation and reduction support is greatly deformed under the action of an earthquake, and meanwhile, the rubber seismic isolation and reduction support is easy to age so that the seismic isolation and reduction performance is reduced. The friction pendulum support is high in bearing capacity, stable in performance and good in seismic isolation and reduction performance, and is widely applied to seismic isolation and reduction design of bridges.
The friction pendulum support is one of shock absorption and isolation devices for carrying out shock absorption and isolation design on a long and large bridge structure, and mainly combines a sliding support and a pendulum, so that the self-vibration period of the bridge structure is prolonged through the long period of the friction pendulum support, the bridge structure avoids a section with large earthquake response, and the response of the earthquake to the upper structure of the bridge is weakened.
In order to adapt to the performance-based seismic isolation and reduction design of the long and large bridge, the stress performance of the support and the bridge structure is improved, the friction pendulum support has seismic isolation and reduction parameters which adapt to the requirements of self seismic isolation performance to the longitudinal direction and the transverse direction of the bridge under the action of an earthquake, the anisotropic seismic isolation and reduction design of the longitudinal bridge and the transverse bridge of the bridge is realized, and the anisotropic seismic isolation and reduction design of the bridge has good hysteretic energy consumption characteristics, is wide in adaptability and is more economic.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the conventional friction pendulum support, the invention provides an ellipsoidal anisotropic friction simple pendulum support so as to realize the anisotropic seismic isolation and reduction design of the longitudinal and transverse bridge directions of a bridge.
(II) technical scheme
In order to achieve the above object, the present invention provides an ellipsoidal anisotropic friction simple pendulum support comprising: the top surface of the upper seat plate 1 is a plane, and the bottom surface of the upper seat plate is an ellipsoidal concave surface; the bottom surface of the lower seat plate 3 is a plane, and the top surface of the lower seat plate is a concave spherical curved surface; the hinged sliding block 2 is arranged between the upper seat plate 1 and the lower seat plate 3, the top surface is an ellipsoidal convex surface matched with the ellipsoidal concave surface, and the bottom surface is a convex spherical curved surface matched with the concave spherical curved surface.
In the above scheme, the anisotropic friction simple pendulum support further comprises a sliding wear-resistant plate 4, which is embedded or adhered to the surface of the ellipsoidal concave surface of the bottom surface of the upper base plate 1, or embedded or adhered to the surface of the ellipsoidal convex surface of the top surface of the hinged sliding block 2, and is used for realizing the sliding function of the support.
In the above scheme, slip antifriction plate 4 is ultra high performance fluorine-containing material, adopts the monoblock antifriction plate or adopts N small-size antifriction plate preparation to form, and N is for being greater than 1 natural number.
In the above scheme, the anisotropic friction simple pendulum support further comprises a rotating wear-resistant plate 5 with a grease storage groove, and the rotating wear-resistant plate is embedded or stuck on the inner surface of the concave spherical curved surface of the top surface of the lower seat plate 3 or the surface of the convex spherical curved surface of the bottom surface of the hinged sliding block 2, so that the rotating function of the support is realized.
In the above scheme, the rotating wear-resistant plate 5 is made of modified ultra-high molecular weight polyethylene, modified polytetrafluoroethylene or an ultra-high performance fluorine-containing material.
In the scheme, the ultrahigh-performance fluorine-containing material is a high-molecular polymer material polymerized by fluorine-containing and ether ketone with the molecular weight of more than 500 ten thousand.
In the scheme, the inner surface of the ellipsoidal concave surface at the bottom surface of the upper seat plate 1 is coated with a stainless steel plate or is attached with a stainless steel mirror surface, or the inner surface of the ellipsoidal concave surface is processed by adopting electroless chemical nickel plating or chromium plating technology, so that the corrosion resistance of the sliding surface of the anisotropic friction simple pendulum support is improved.
In the scheme, the periphery of the ellipsoidal concave surface at the bottom surface of the upper seat plate 1 is provided with the annular stop blocks 6 so as to limit the anisotropic friction simple pendulum support from falling off during sliding displacement; the annular stop block 6 and the ellipsoidal concave surface 8 of the upper seat plate 1 form an ellipsoidal groove of the upper seat plate.
In the scheme, the periphery of the concave spherical surface on the top surface of the lower seat plate 3 is provided with the stop blocks 7 so as to limit the falling off of the anisotropic friction simple pendulum support during the rotation displacement; the stop dog 7 and the concave spherical curved surface 9 of the lower seat plate 3 form a concave spherical surface of the lower seat plate.
In the scheme, the planar projection of the hinged sliding block 2 is circular, the curved surface parameters of the ellipsoidal convex surface of the top surface of the hinged sliding block 2 and the ellipsoidal concave surface of the bottom surface of the upper seat plate 1 are kept consistent, and the curved surface parameters of the convex spherical surface of the bottom surface of the hinged sliding block 2 and the curved surface parameters of the concave spherical surface of the top surface of the lower seat plate 3 are kept consistent.
(III) advantageous effects
According to the technical scheme, the invention has the following beneficial effects:
1. the invention provides an ellipsoidal anisotropic friction simple pendulum support, which adopts an anisotropic seismic isolation and reduction design based on performance requirements, and the equation of an ellipsoidal surface of an ellipsoidal concave surface is as follows:
the values of a, b and c are respectively called as a long half shaft, a middle half shaft and a short half shaft of an ellipsoid, and the anisotropic seismic isolation and reduction design of different curvatures and different support displacements of the support can be realized by adjusting the values of a, b and c; the technical personnel in the field can respectively carry out seismic isolation and reduction parameter design according to different seismic isolation and reduction performance requirements of the bridge structure in the longitudinal bridge direction and the transverse bridge direction.
2. The ellipsoidal anisotropic friction simple pendulum support provided by the invention has the characteristics that the rotating wear-resisting plate is made of a fluorine-containing and ether ketone polymerized high polymer material with the molecular weight of more than 500 ten thousand, ① friction coefficient is stable, the regulation and control range is wide, the static friction coefficient is 0.03-0.07, the dynamic friction coefficient is 0.02-0.06, the support can be finely designed according to engineering requirements, the ② elastic modulus is 1500MPa (1 +/-15%), the working performance of the wear-resisting plate in a low-temperature environment is provided, ③ design strength is high, the wear resistance is good, the dry grinding distance with a stainless steel mirror surface can reach more than 10km, the linear wear rate is less than 30 mu m/km, and the durability is higher.
3. The ellipsoidal anisotropic friction simple pendulum support has the advantages that the ellipsoidal concave surface on the bottom surface of the upper base plate is a friction surface, the friction surface can adopt electroless chemical nickel or chromium plating technology, the surface hardness of the ① coating is high and can reach more than HV1000, the thickness of the ② coating is uniform, the surface roughness of a plated part is not changed, the bonding strength of ③ and the plated part is high, the internal stress of the coating is eliminated through heat treatment, the atomic diffusion between the coating and a base material is promoted, the bonding strength of the coating and the plated part is improved, the corrosion resistance of ④ is high, the phenomenon that a stainless steel mirror surface welding seam of the traditional friction pendulum support is corroded to be separated from a support body is avoided due to the adoption of an integral coating mode, and the service life of the friction pendulum support is prolonged.
4. The ellipsoidal anisotropic friction simple pendulum support provided by the invention has high design strength of an adopted ultra-high performance sliding plate material, and can reduce the size of a friction pair in the structural design of friction pendulum supports with the same tonnage and the same function, thereby reducing the overall size of the support, lightening the weight of the support, saving materials, realizing the anisotropic vibration reduction and isolation design and having better economy.
5. The ellipsoidal anisotropic friction simple pendulum support provided by the invention can adapt to seismic isolation and reduction design in any direction. The lower part of the hinged sliding block and the groove on the upper part of the lower seat plate are spherical surfaces, and the hinged sliding block realizes the rotation in any horizontal direction through the spherical surfaces; vertical rotating clearance is arranged between the hinged sliding block and the groove in the upper portion of the lower seat plate, vertical rotation of the hinged sliding block when the upper seat plate of the support horizontally swings is achieved, and seismic isolation and reduction design of the support in any direction can be achieved.
Drawings
FIG. 1 is an isometric view of an ellipsoidal anisotropic friction simple pendulum support according to an embodiment of the present invention.
FIG. 2 is a front view of an ellipsoidal anisotropic friction simple pendulum support according to an embodiment of the present invention.
FIG. 3 is a side view of an ellipsoidal anisotropic friction simple pendulum support in accordance with an embodiment of the present invention.
FIGS. 4a and 4b are schematic diagrams of an upper base plate of an ellipsoidal anisotropic friction simple pendulum support according to an embodiment of the present invention; wherein, fig. 4a is a front view of the upper seat plate, and fig. 4b is a side view of the upper seat plate.
FIGS. 5a and 5b are schematic views of the hinged slider of the ellipsoidal anisotropic friction simple pendulum support according to an embodiment of the present invention; wherein fig. 5a is a front view and fig. 5b is a side view of the hinge slider.
FIGS. 6a, 6b, and 6c are schematic diagrams of an ellipsoidal anisotropic friction simple pendulum support with N small wear plates arranged in a hinged slider according to an embodiment of the present invention; fig. 6a is a plan view of the hinge slider, fig. 6b is a side view of the hinge slider, and fig. 6c is a partially enlarged schematic view of the arrangement of the small wear plate.
Fig. 7 is a schematic view of the lower seat plate of the ellipsoidal anisotropic friction simple pendulum support according to the embodiment of the present invention.
In the figure, an upper seat plate 1, a hinged sliding block 2, a lower seat plate 3, a sliding wear-resisting plate 4, a rotating wear-resisting plate 5, an upper seat plate annular stop 6, a lower seat plate stop 7, an upper seat plate ellipsoidal concave surface 8, a lower seat plate concave spherical curved surface 9 and a hinged sliding block convex spherical curved surface 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
As shown in fig. 1, fig. 2 and fig. 3, an ellipsoidal anisotropic friction simple pendulum support provided by an embodiment of the present invention includes: go up bedplate 1, lower bedplate 3 and articulated slider 2, wherein: the top surface of the upper seat plate 1 is a plane, and the bottom surface is an ellipsoidal concave surface 8; the bottom surface of the lower seat plate 3 is a plane, and the top surface is a concave spherical curved surface 9; the hinged sliding block 2 is arranged between the upper seat plate 1 and the lower seat plate 3, the top surface is an ellipsoidal convex surface matched with the ellipsoidal concave surface, and the bottom surface is a convex spherical curved surface 10 matched with the concave spherical curved surface.
In one embodiment of the present invention, the anisotropic friction simple pendulum mount further comprises a sliding wear plate 4 embedded or adhered to the surface of the ellipsoidal concave surface 8 on the bottom surface of the upper seat plate 1 or embedded or adhered to the surface of the ellipsoidal convex surface on the top surface of the hinged slider 2 for realizing the sliding function of the mount. The sliding wear plate 4 can be made of a fluorine-containing material with ultrahigh performance, a whole wear plate or N small-size wear plates are adopted, and N is a natural number greater than 1. In practical application, for a support with small tonnage and small design displacement, the sliding wear-resisting plate 4 is stuck in a whole block; for a large-tonnage support or a support with large designed displacement, in order to ensure that the sliding wear-resisting plate 4 can be completely adhered to the convex curved surface of the top surface of the hinged sliding block 2, N small-size wear-resisting plates can be embedded on the ellipsoidal surface of the top surface of the hinged sliding block 2.
In one embodiment of the present invention, the anisotropic friction simple pendulum support further comprises a rotating wear plate 5 with a grease storage groove, which is embedded or adhered to the inner surface of the concave spherical curved surface 9 of the top surface of the lower seat plate 3 or embedded or adhered to the surface of the convex spherical curved surface 10 of the bottom surface of the articulated sliding block 2, for realizing the rotating function of the support. The rotating wear-resisting plate 5 can be made of modified ultra-high molecular weight polyethylene, modified polytetrafluoroethylene or an ultra-high performance fluorine-containing material. Generally, the ultra-high performance fluorine-containing material is a high molecular polymer material polymerized by fluorine-containing and ether ketone with molecular weight more than 500 ten thousand.
Fig. 4a and 4b are schematic views of an upper seat plate of an ellipsoidal anisotropic friction simple pendulum support according to an embodiment of the present invention, as shown in fig. 4a and 4 b. Wherein, fig. 4a is a front view of the upper seat plate, and fig. 4b is a side view of the upper seat plate. In one embodiment of the present invention, the inner surface of the ellipsoidal concave surface of the bottom surface of the upper seat plate 1 is coated with a stainless steel plate or is adhered with a stainless steel mirror surface, or the inner surface of the ellipsoidal concave surface is treated by electroless chemical nickel or chromium plating technology to improve the corrosion resistance of the sliding surface of the anisotropic friction simple pendulum support. In one embodiment of the present invention, the bottom surface of the upper seat plate 1 has an ellipsoidal concave surface, and the periphery of the ellipsoidal concave surface is provided with an annular stopper 6 to limit the anisotropic friction simple pendulum support from falling off during sliding displacement. The annular stop block 6 and the ellipsoidal concave surface 8 of the upper seat plate 1 form an ellipsoidal groove of the upper seat plate.
Referring to fig. 4a and 4b again, the equation of the ellipsoidal curved surface is:
the values of a, b and c are respectively called as a long half shaft, a middle half shaft and a short half shaft of an ellipsoid, and the anisotropic seismic isolation and reduction design of different curvatures and different support displacements of the support can be realized by adjusting the values of a, b and c.
In one embodiment of the present invention, the inner surface of the ellipsoidal concave surface of the bottom surface of the upper seat plate 1 can be bonded with a stainless steel mirror surface, and the inner surface of the ellipsoidal concave surface can also be processed by electroless chemical nickel/chromium plating technology, so as to improve the corrosion resistance of the sliding surface of the friction pendulum support. The sliding wear-resisting plate 4 is made of an ultrahigh-performance fluorine-containing material, the rotating wear-resisting plate 5 is provided with a grease storage groove and can be made of modified ultrahigh molecular weight polyethylene, modified polytetrafluoroethylene or an ultrahigh-performance fluorine-containing material, the friction coefficient is as small as possible, and the flexible rotation of the support at any angle is realized. In practical application, the sliding wear-resisting plate 4 is made of an ultrahigh-performance fluorine-containing material, so that the high-temperature-resistant and wear-resistant performance is ensured when the sliding plate slides quickly under the action of an ellipsoid earthquake. The rotating wear-resisting plate 5 is provided with a grease storage groove and can be made of modified ultrahigh molecular weight polyethylene, modified polytetrafluoroethylene or an ultrahigh-performance fluorine-containing material, the friction coefficient is as small as possible, the support is ensured to rotate flexibly, and a small extra torque is generated.
In one embodiment of the invention, the electroless chemical nickel plating technology is characterized in that ① coating has high surface hardness which can reach more than HV1000, ② coating has uniform thickness without changing the surface roughness of a plated piece, ③ coating has high bonding strength with the plated piece, internal stress of the coating is eliminated through heat treatment, atomic diffusion between the coating and a base material is promoted, the bonding strength of the coating and the plated piece is improved, ④ corrosion resistance is high, and due to the adoption of an integral coating mode, the phenomenon that a stainless steel mirror surface welding seam of a traditional friction pendulum support is corroded to be separated from a support body is avoided, and the service life of the friction pendulum support is prolonged.
In one embodiment of the invention, the ultrahigh-performance fluorine-containing material is a high-molecular polymer material polymerized by fluorine-containing and ether ketone with the molecular weight of more than 500 ten thousand, and has the characteristics that the ① friction coefficient is stable, the regulation and control range is wide, for example, the static friction coefficient is 0.03-0.07, the dynamic friction coefficient is 0.02-0.06, the fine design can be carried out according to engineering requirements, the ② elastic modulus is 1500MPa (1 +/-15%), the working performance of the wear-resisting plate under the low-temperature environment is provided, the ③ design strength is high, the wear-resisting performance is good, the dry grinding distance with a stainless steel mirror surface can reach more than 10km, the linear wear rate is less than 30 mu m/km., the support has good rapid shearing performance, the support has good performance (the speed is more than or equal to 500mm/s) under the rapid shearing friction test, and the good earthquake damping and isolation function of.
In an embodiment of the present invention, an oil storage tank needs to be disposed on the surface of the modified ultra-high molecular weight polyethylene or other high molecular friction material, and 5201 silicone grease special for bridge bearings needs to be filled in the oil storage tank during the assembly of the bearings, so as to realize flexible rotation between the bearing hinge sliding block 2 and the lower seat plate 3 in any direction.
As shown in fig. 5a and 5b, fig. 5a and 5b are schematic views of the hinge sliding block of the ellipsoidal anisotropic friction simple pendulum support according to the embodiment of the present invention; wherein fig. 5a is a front view and fig. 5b is a side view of the hinge slider. In one embodiment of the present invention, the planar projection of the hinged sliding block 2 is circular, the curved surface parameters of the ellipsoidal convex surface of the top surface of the hinged sliding block 2 and the ellipsoidal concave surface of the bottom surface of the upper seat plate 1 are kept consistent, and the curved surface parameters of the convex spherical curved surface of the bottom surface of the hinged sliding block 2 and the curved surface parameters of the concave spherical curved surface of the top surface of the lower seat plate 3 are kept consistent, so that the surface-surface seamless contact is realized, and the uniformity of the stress between the contact surfaces is ensured.
FIGS. 6a, 6b, and 6c are schematic diagrams of an ellipsoidal anisotropic friction simple pendulum support with N small wear plates arranged in a hinged slider according to an embodiment of the present invention; fig. 6a is a plan view of the hinge slider, fig. 6b is a side view of the hinge slider, and fig. 6c is a partially enlarged schematic view of the arrangement of the small wear plate.
Fig. 7 is a schematic view of the lower seat plate of the ellipsoidal anisotropic friction simple pendulum support according to the embodiment of the present invention, as shown in fig. 7. In one embodiment of the present invention, the concave spherical surface of the top surface of the lower seat plate 3 is provided with a stop 7 around the concave spherical surface to limit the anisotropic friction simple pendulum support from falling off during the rotational displacement. The stop dog 7 and the concave spherical curved surface 9 of the lower seat plate 3 form a concave spherical surface of the lower seat plate.
In one embodiment of the invention, the ellipsoidal anisotropic friction simple pendulum support provided by the invention can be designed as a single component if part of the component needs to be replaced, and only the following two conditions need to be met: (1) the sliding wear-resistant plate 4 attached to the top surface of the hinged sliding block 2 is matched with the ellipsoidal groove 8 of the upper seat plate 1; (2) the rotating wear-resisting plate 5 attached to the concave spherical curved surface of the lower seat plate 3 is matched with the convex spherical curved surface at the bottom of the hinged slide block 2. Under the condition that two conditions above are satisfied, the major axis, the middle semi-axis and the minor axis of the ellipsoid of the ellipsoidal groove 8 of the upper seat plate 1 can be realized by adjusting the values of a, b and c, the bearing capacity of the hinged sliding block 2 and the lower seat plate 3 can be respectively designed according to seismic isolation and reduction requirements, and then the installation is carried out to form the ellipsoidal anisotropic friction simple pendulum support. When the support part is damaged or designed and replaced in a subsection mode, the corresponding component can be replaced, and the assembling performance of the ellipsoidal anisotropic friction simple pendulum support is achieved.
In practical application, a long half shaft a, a middle half shaft b and a short half shaft c of the concave ellipsoid surface of the upper seat plate can be designed according to the earthquake fortification grade and earthquake resistance requirement of a bridge, so that the performance-based longitudinal and transverse fine seismic reduction and isolation design of the friction simple pendulum support is realized.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An ellipsoidal anisotropic friction simple pendulum support, comprising:
the top surface of the upper seat plate (1) is a plane, and the bottom surface of the upper seat plate is an ellipsoidal concave surface;
the bottom surface of the lower seat plate (3) is a plane, and the top surface of the lower seat plate is a concave spherical curved surface;
the hinged sliding block (2) is arranged between the upper seat plate (1) and the lower seat plate (3), the top surface is an ellipsoidal convex surface matched with the ellipsoidal concave surface, and the bottom surface is a convex spherical curved surface matched with the concave spherical curved surface.
2. The ellipsoidal anisotropic friction simple pendulum support according to claim 1, further comprising a sliding wear plate (4) embedded or adhered to the surface of the ellipsoidal concave surface of the bottom surface of the upper base plate (1) or embedded or adhered to the surface of the ellipsoidal convex surface of the top surface of the hinged slider (2) for realizing the sliding function of the support.
3. The ellipsoidal anisotropic friction simple pendulum support according to claim 2, wherein the sliding wear plate (4) is made of ultra-high performance fluorine-containing material, using a one-piece wear plate or using N small-sized wear plates, where N is a natural number greater than 1.
4. The ellipsoidal anisotropic friction simple pendulum support according to claim 1 or 2, further comprising a rotational wear plate (5) with a grease storage groove, wherein the rotational wear plate is embedded or adhered to the inner surface of the concave spherical curved surface of the top surface of the lower base plate (3) or embedded or adhered to the surface of the convex spherical curved surface of the bottom surface of the hinged sliding block (2) for realizing the rotational function of the support.
5. The ellipsoidal anisotropic friction simple pendulum support according to claim 4, wherein the rotating wear plate (5) is made of modified ultra-high molecular weight polyethylene, modified polytetrafluoroethylene, or ultra-high performance fluorine-containing material.
6. The ellipsoidal anisotropic friction simple pendulum support of claim 5, wherein the ultra-high performance fluorine-containing material is a polymeric material comprising a polymer of fluorine and ether ketone with a molecular weight greater than 500 ten thousand.
7. The ellipsoidal anisotropic friction simple pendulum support according to claim 1, wherein the inner surface of the ellipsoidal concave surface of the bottom surface of the upper base plate (1) is coated with a stainless steel plate or attached with a stainless steel mirror surface, or the inner surface of the ellipsoidal concave surface is treated by electroless chemical nickel or chromium plating technology to improve the corrosion resistance of the sliding surface of the anisotropic friction simple pendulum support.
8. The ellipsoidal anisotropic friction simple pendulum support according to claim 1, wherein the ellipsoidal concave surface of the bottom surface of the upper base plate (1) is provided with annular stoppers (6) around its circumference to limit the anisotropic friction simple pendulum support from falling off during sliding displacement; the annular stop block (6) and the ellipsoidal concave surface (8) of the upper seat plate (1) form an ellipsoidal groove of the upper seat plate.
9. The ellipsoidal anisotropic friction simple pendulum support according to claim 1, wherein the concave spherical surface of the top surface of the lower base plate (3) is provided with a stopper (7) around it to limit the anisotropic friction simple pendulum support from falling off during rotational displacement; the stop block (7) and the concave spherical curved surface (9) of the lower seat plate (3) form a concave spherical surface of the lower seat plate.
10. The ellipsoidal anisotropic friction simple pendulum support according to claim 1, characterized in that the planar projection of the articulated sliding block (2) is circular, the ellipsoidal convex surface of the top surface of the articulated sliding block (2) and the ellipsoidal concave surface of the bottom surface of the upper base plate (1) have the same curved parameters, and the convex spherical curved surface of the bottom surface of the articulated sliding block (2) and the concave spherical curved surface of the top surface of the lower base plate (3) have the same curved parameters.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111428467.2A CN113981812A (en) | 2019-12-26 | 2019-12-26 | Ellipsoidal anisotropic friction simple pendulum support |
| CN201911371921.8A CN111021238A (en) | 2019-12-26 | 2019-12-26 | Ellipsoidal anisotropic friction simple pendulum support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911371921.8A CN111021238A (en) | 2019-12-26 | 2019-12-26 | Ellipsoidal anisotropic friction simple pendulum support |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111428467.2A Division CN113981812A (en) | 2019-12-26 | 2019-12-26 | Ellipsoidal anisotropic friction simple pendulum support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111021238A true CN111021238A (en) | 2020-04-17 |
Family
ID=70214015
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911371921.8A Pending CN111021238A (en) | 2019-12-26 | 2019-12-26 | Ellipsoidal anisotropic friction simple pendulum support |
| CN202111428467.2A Pending CN113981812A (en) | 2019-12-26 | 2019-12-26 | Ellipsoidal anisotropic friction simple pendulum support |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111428467.2A Pending CN113981812A (en) | 2019-12-26 | 2019-12-26 | Ellipsoidal anisotropic friction simple pendulum support |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN111021238A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174989A (en) * | 2021-04-28 | 2021-07-27 | 同济大学 | Inner tank and outer tank separated type LNG liquid storage tank shock insulation system and construction method thereof |
| CN113897857A (en) * | 2021-10-15 | 2022-01-07 | 中铁第四勘察设计院集团有限公司 | Friction pendulum support and bridge structure |
| CN114182618A (en) * | 2021-11-18 | 2022-03-15 | 中冶南方城市建设工程技术有限公司 | Deck type arch bridge one-way hinged column head joint device and installation method thereof |
| CN114319601A (en) * | 2021-12-21 | 2022-04-12 | 东南大学 | Horizontal bidirectional mechanical parameter adjustable disconnect-type friction support |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013090A (en) * | 2011-09-21 | 2013-04-03 | 重庆信合塑胶有限公司 | Polyaryletherketone composite material and application of the same in bridge bearing |
| CN204875499U (en) * | 2015-08-04 | 2015-12-16 | 株洲时代新材料科技股份有限公司 | Friction pendulum support |
| CN205046694U (en) * | 2015-10-08 | 2016-02-24 | 中交公路长大桥建设国家工程研究中心有限公司 | X type anisotropic friction double pendulum subtracts isolation bearing |
| CN206928183U (en) * | 2017-10-24 | 2018-01-26 | 安徽尚德科技有限公司 | A kind of spheroid shape girder falling vibration absorption and isolation support |
| CN208052747U (en) * | 2018-02-11 | 2018-11-06 | 洛阳双瑞特种装备有限公司 | A kind of bearing high molecular abrasion-proof slide plate |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201094B (en) * | 2015-10-08 | 2018-01-12 | 中交公路长大桥建设国家工程研究中心有限公司 | A kind of X-type anisotropy friction double pendulum vibration absorption and isolation support |
| CN205152778U (en) * | 2015-10-15 | 2016-04-13 | 中交公路长大桥建设国家工程研究中心有限公司 | Cross quadrature hyperboloid friction pendulum subtracts isolation bearing |
| CN110424252B (en) * | 2019-09-04 | 2024-05-28 | 中交公路长大桥建设国家工程研究中心有限公司 | Assembled friction pendulum support |
-
2019
- 2019-12-26 CN CN201911371921.8A patent/CN111021238A/en active Pending
- 2019-12-26 CN CN202111428467.2A patent/CN113981812A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013090A (en) * | 2011-09-21 | 2013-04-03 | 重庆信合塑胶有限公司 | Polyaryletherketone composite material and application of the same in bridge bearing |
| CN204875499U (en) * | 2015-08-04 | 2015-12-16 | 株洲时代新材料科技股份有限公司 | Friction pendulum support |
| CN205046694U (en) * | 2015-10-08 | 2016-02-24 | 中交公路长大桥建设国家工程研究中心有限公司 | X type anisotropic friction double pendulum subtracts isolation bearing |
| CN206928183U (en) * | 2017-10-24 | 2018-01-26 | 安徽尚德科技有限公司 | A kind of spheroid shape girder falling vibration absorption and isolation support |
| CN208052747U (en) * | 2018-02-11 | 2018-11-06 | 洛阳双瑞特种装备有限公司 | A kind of bearing high molecular abrasion-proof slide plate |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174989A (en) * | 2021-04-28 | 2021-07-27 | 同济大学 | Inner tank and outer tank separated type LNG liquid storage tank shock insulation system and construction method thereof |
| CN113897857A (en) * | 2021-10-15 | 2022-01-07 | 中铁第四勘察设计院集团有限公司 | Friction pendulum support and bridge structure |
| CN114182618A (en) * | 2021-11-18 | 2022-03-15 | 中冶南方城市建设工程技术有限公司 | Deck type arch bridge one-way hinged column head joint device and installation method thereof |
| CN114182618B (en) * | 2021-11-18 | 2024-01-23 | 中冶南方城市建设工程技术有限公司 | One-way hinged column head node device of upper-bearing arch bridge and mounting method thereof |
| CN114319601A (en) * | 2021-12-21 | 2022-04-12 | 东南大学 | Horizontal bidirectional mechanical parameter adjustable disconnect-type friction support |
| CN114319601B (en) * | 2021-12-21 | 2023-03-10 | 东南大学 | Horizontal bidirectional mechanical parameter adjustable disconnect-type friction support |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113981812A (en) | 2022-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111021238A (en) | Ellipsoidal anisotropic friction simple pendulum support | |
| CN207419247U (en) | A kind of NEW TYPE OF COMPOSITE friction pendulum subtracts shock insulation spherical bearing | |
| KR100650819B1 (en) | Seismic isolation bearing using advanced composite materials | |
| CN210458926U (en) | Ellipsoidal anisotropic friction simple pendulum support for bridge or building | |
| CN202370992U (en) | High-load joint bearing for spacecraft | |
| CN113494523B (en) | Heavy load point supporting elastic tilting pad Shui Runhua sliding thrust bearing | |
| CN104878688A (en) | Spherical wind-resistant bridge support | |
| KR101708886B1 (en) | Engineering plastic friction member, isolator and method for making the same | |
| CN106192737B (en) | Roll type pot rubber bearing | |
| CN105114446A (en) | Changeable stepped damping thrust bearing | |
| RU2470200C2 (en) | Elastic bearing, and method for its routine repair and maintenance | |
| EP1801433B1 (en) | Spherical bearing for lock gate door and lock gate door having the same | |
| WO2021057875A1 (en) | Spherical steel support | |
| CN110424252B (en) | Assembled friction pendulum support | |
| CN209307847U (en) | A kind of bridge expanssion joint pressure-bearing spherical bearing | |
| CN106930182B (en) | steel damping energy-dissipation type spherical steel support | |
| CN214573297U (en) | Bridge displacement self-adaptation damping support | |
| CN110872811A (en) | Bridge beam supports that durability is good and slippage ability is strong | |
| CN211079896U (en) | Friction pendulum type bridge seismic mitigation and isolation steel support | |
| US11680603B2 (en) | Bearing, coupling mechanism for use therein, and preload application method for use in coupling mechanism | |
| CN107905094A (en) | A kind of adaptive bridge pad | |
| CN209781464U (en) | Super large diameter's low friction spherical joint bearing | |
| CN210458924U (en) | Universal corner ball-shaped support | |
| CN219364300U (en) | High-temperature-resistant corrosion-resistant metal friction surface spherical support | |
| WO2020140297A1 (en) | Novel composite damping and vibration-reducing support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200417 |
|
| RJ01 | Rejection of invention patent application after publication |