CN215329329U - Compound friction pendulum subtracts isolation bearing - Google Patents
Compound friction pendulum subtracts isolation bearing Download PDFInfo
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- CN215329329U CN215329329U CN202121041297.8U CN202121041297U CN215329329U CN 215329329 U CN215329329 U CN 215329329U CN 202121041297 U CN202121041297 U CN 202121041297U CN 215329329 U CN215329329 U CN 215329329U
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Abstract
A composite friction pendulum seismic mitigation and isolation support comprises a support top plate, a spherical crown steel lining plate, a support body and a support bottom plate, wherein the support top plate is in sliding connection with the spherical crown steel lining plate through an upper curved surface sliding friction pair to form a first sliding mechanism, the support body is in sliding connection with the support bottom plate through a lower curved surface sliding friction pair to form a second sliding mechanism, the first sliding mechanism and the second sliding mechanism are arranged in a staggered mode, and the staggered angle theta of the first sliding mechanism and the second sliding mechanism is larger than 0 degree and smaller than 90 degrees; the sliding direction of the upper curved surface sliding friction pair is transverse or longitudinal, and the sliding direction of the lower curved surface sliding friction pair is longitudinal or transverse. This isolation bearing compact structure, bearing capacity is big, and its first glide machanism sets up with the second glide machanism is crisscross, and the slip of equidirectional adopts the separation independent design, can match the design according to performance demands such as the shock insulation cycle of roof beam body equidirectional not, horizontal shear force and sliding displacement to the realization carries out scientific control to the structure equidirectional, makes engineering cost more excellent.
Description
Technical Field
The utility model relates to a bridge support, in particular to a composite friction pendulum seismic mitigation and isolation support.
Background
The friction pendulum support has the characteristics of good seismic reduction and isolation performance, large bearing capacity, large displacement capacity, self-resetting capability, long service life and the like, and is widely applied to various highway municipal railway bridges. The friction pendulum support (including friction simple pendulum support, friction pendulum vibration damping and isolating support with separable design in all directions) used at present has the following defects:
1. the friction simple pendulum support seat rotates and slides by means of spherical surface matching between the upper support seat plate and the lower support seat plate through the double convex spherical crown, so that the normal function and the shock absorption and isolation function of the support seat are realized; when an earthquake occurs and the horizontal force reaches a preset value, the limiting device fails, the support can slide in all horizontal directions, the self-vibration period of the upper structure is prolonged by utilizing a simple pendulum mechanism so as to reduce the transmission of the earthquake force to the upper structure, part of earthquake energy is dissipated by utilizing friction damping during sliding, the earthquake reaction of the structure is reduced, the structure is protected to be safe, and the support can automatically reset through the self weight of the upper structure after the earthquake occurs;
there are problems in that: usually, the self-vibration period and the control displacement obtained after the bridge carries out vibration isolation analysis according to an actual structure are different in the longitudinal and transverse bridge directions, the vibration isolation period and the comprehensive displacement of the traditional friction simple pendulum support in each direction are completely the same, and the pertinence adjustment cannot be carried out on the vibration isolation period and the comprehensive displacement in different directions, and the structural vibration isolation period and the comprehensive displacement in the transverse bridge direction and the longitudinal bridge direction can only be controlled by a single support parameter during the vibration isolation analysis of the bridge, so that the vibration isolation requirement can be met in one direction easily, and the vibration isolation margin in the other direction can be very large, but in order to meet the requirement of an installation space, the sizes of upper and lower structures in the direction need to be synchronously increased, and the total construction cost is increased;
2. present move about freely and quickly each direction friction pendulum of performance detachable design subtracts isolation bearing like the patent that application number is CN 210766429U, its horizontal bearing capacity need be transmitted to last bedplate by the roof beam body, and last welt and lower welt are transmitted to upper bracket board, and lower welt transmits horizontal bearing capacity for lower bedplate again, and the problem of existence is:
the horizontal bearing capacity between the upper lining plate and the lower lining plate of the structure is transferred through the spherical surface of the spherical middle spherical sliding plate matched with the concave spherical surface of the upper lining plate and the convex spherical surface of the lower lining plate, so the upper limit of the horizontal bearing capacity is mainly determined by the concave-convex depth of the spherical surface matched with the upper lining plate and the lower lining plate and the friction coefficient of the spherical middle sliding plate; the middle spherical surface sliding plate not only bears the bearing effect of vertical force, but also needs to bear the bearing effect of horizontal bearing capacity, obviously increases the local stress of the middle spherical surface sliding plate, and can not effectively exert the bearing strength of the middle spherical surface sliding plate.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the composite friction pendulum seismic mitigation and isolation support is simple in structure, economical, practical and reliable in force transmission, and overcomes the defects in the prior art.
In order to solve the technical problems, the utility model adopts the technical scheme that: a composite friction pendulum vibration reduction and isolation support comprises a support top plate and a support bottom plate; the support is characterized in that a spherical crown steel lining plate and a support body are sequentially arranged between a support top plate and a support bottom plate, the support top plate is in sliding connection with the spherical crown steel lining plate through an upper curved surface sliding friction pair so as to form a first sliding mechanism, the support body is in sliding connection with the support bottom plate through a lower curved surface sliding friction pair so as to form a second sliding mechanism, the first sliding mechanism and the second sliding mechanism are arranged in a staggered mode, and the staggered angle theta of the first sliding mechanism and the second sliding mechanism is larger than 0 degree and smaller than 90 degrees; the sliding direction of the upper curved surface sliding friction pair is the bridge transverse direction or the bridge longitudinal direction, and the sliding direction of the lower curved surface sliding friction pair is the bridge longitudinal direction or the bridge transverse direction;
the upper curved surface sliding friction pair comprises an upper stainless steel plate and an upper curved surface wear-resisting plate, the upper stainless steel plate is arranged in a square concave curved surface II on the bottom surface of the support top plate, the upper curved surface wear-resisting plate is embedded in a groove of a convex curved surface III on the top surface of the spherical crown steel lining plate, the curvature radius of the square concave curved surface II corresponds to that of the convex curved surface III, and the curvature radius of the upper stainless steel plate corresponds to that of the upper curved surface wear-resisting plate; the lower curved surface sliding friction pair comprises a lower stainless steel plate and a lower curved surface wear-resisting plate, the lower stainless steel plate is arranged in a square concave curved surface I on the top surface of the base plate of the support, the lower curved surface wear-resisting plate is embedded in a groove of a convex curved surface II on the bottom surface of the support body, the curvature radius of the square concave curved surface I corresponds to that of the convex curved surface II, and the curvature radius of the lower stainless steel plate corresponds to that of the lower curved surface wear-resisting plate;
first glide machanism through the sphere revolute the friction vice with the second glide machanism rotates to be connected, sphere revolute the friction vice establish between first glide machanism's spherical crown steel lining board and second glide machanism's supporter, including cladding at the corrosion resistant plate of spherical crown steel lining board bottom surface or electroplate hard chromium layer and set up the sphere antifriction plate at the supporter top surface, the supporter top surface is concave spherical surface II, and the sphere antifriction plate is inlayed in the concave spherical surface II, spherical crown steel lining board lower extreme is spherical radius and the corresponding convex spherical surface III of concave spherical surface II, corrosion resistant plate or the cladding of electroplating hard chromium layer are on convex spherical surface III surfaces.
The further technical scheme is as follows: the curvature radius of a convex spherical surface III at the lower end of the spherical cap steel lining plate is 0.7-2.8 times of the projection diameter of the spherical wear-resisting plate.
Further: the support base plate is an upward rectangular concave basin and comprises a rectangular base plate, a left baffle I, a right baffle I, a front baffle I and a rear baffle I, wherein the left baffle I, the right baffle I, the front baffle I and the rear baffle I are connected to the periphery of the rectangular base plate; the outer sides of the front baffle I and the rear baffle I are provided with an anchoring piece connecting block I connected with an anchoring assembly, the inner side surfaces of the front baffle I and the rear baffle I are provided with lower side surface stainless steel plates, and the upper end surfaces of the left baffle I and the right baffle I are respectively connected with a lower shearing plate through lower shearing pins; the square lower part of the support body is located in a rectangular concave basin of the support base plate, and lower guide blocks I are arranged on the left side and the right side of the square lower part of the support body, so that a lower guide mechanism is formed by the lower guide blocks I and lower stainless steel plates on the inner sides of a left baffle I and a right baffle I of the support base plate;
the top plate of the support is a downward rectangular concave basin and comprises a rectangular top plate, a left baffle II, a right baffle II, a front baffle II and a rear baffle II, wherein the left baffle II, the right baffle II, the front baffle II and the rear baffle II are connected to the periphery of the rectangular top plate; the outer sides of the front baffle II and the rear baffle II are provided with an anchoring part connecting block II connected with an anchoring component, the inner side surfaces of the front baffle II and the rear baffle II are provided with upper side stainless steel plates, and the lower end surfaces of the left baffle II and the right baffle II are respectively connected with an upper shear plate through upper shear pins; in square upper portion of spherical crown steel lining board and supporter is enclosded in preceding baffle II, backplate II, left baffle II and the right baffle II around the support roof, the square upper portion of supporter falls in the rectangle basin of support roof, and the front and back side on the square upper portion of supporter is provided with guide block II to form guiding mechanism with the upside corrosion resistant plate of support roof preceding baffle II and backplate II inboards.
Further: the friction surface of the spherical wear-resistant plate is provided with a honeycomb oil storage tank, the friction surface is coated with a high-quality silicone grease lubricant, the friction surfaces of the upper curved wear-resistant plate and the lower curved wear-resistant plate are provided with the honeycomb oil storage tank, and the friction surface is coated with the high-quality silicone grease lubricant.
Further: the square upper part and the square lower part of the support body are of an integral structure or a split structure, and the square upper part and the square lower part are connected into a whole through bolts or welding when the support body is of the split structure.
Further: the spherical wear-resistant plate comprises an upper curved surface wear-resistant plate and a lower curved surface wear-resistant plate, wherein the upper curved surface wear-resistant plate and the lower curved surface wear-resistant plate are polytetrafluoroethylene sliding plates, modified polytetrafluoroethylene sliding plates, ultrahigh-performance polytetrafluoroethylene sliding plates or ultrahigh-molecular-weight polyethylene wear-resistant sliding plates.
Due to the adoption of the technical scheme, compared with the prior art, the composite friction pendulum seismic mitigation and isolation support has the following beneficial effects:
1. the composite friction pendulum vibration reduction and isolation support has the advantages that the structure is compact, the bearing capacity is large, the design is reasonable, horizontal forces in different directions generated by the upper structure of the beam body are reliably transmitted to the support body from the top plate of the support, and are transmitted to the bottom plate of the support through the support body and then transmitted to the abutment, and the structure is reliable in force transmission;
2. the composite friction pendulum seismic mitigation and isolation support comprises a first sliding mechanism (in the longitudinal bridge direction) and a second sliding mechanism (in the transverse bridge direction), wherein the first sliding mechanism and the second sliding mechanism are arranged in a staggered mode, the staggered angle theta of the first sliding mechanism and the second sliding mechanism is larger than 0 degree and smaller than 90 degrees, the sliding in different directions is designed separately and independently, and can be designed in a matching mode according to performance requirements of seismic isolation periods, horizontal shearing force, sliding displacement and the like of a beam body in different directions, so that scientific control over different directions of the structure is achieved, and the construction cost is better;
3. according to the composite friction pendulum seismic mitigation and isolation support, the first sliding mechanism is rotatably connected with the second sliding mechanism through the spherical rotating friction pair, so that the first sliding mechanism can rotate relative to the second sliding mechanism along different vertical angles, the self-vibration period of the upper structure is prolonged by using a pendulum mechanism, the transmission of seismic force to the upper structure is reduced, partial seismic energy is dissipated by using friction damping during rotation sliding, the seismic reaction of the structure is reduced, the support can automatically reset through the self weight of the upper structure after an earthquake, and the safety of the structure is effectively protected;
4. the composite friction pendulum vibration reduction and isolation support comprises a support top plate, a support bottom plate, a left side plate, a right side plate, a front side plate and a rear side plate which are connected with a shear plate through shear pins, when an earthquake occurs, longitudinal or transverse horizontal force reaches a preset value of the shear force of the shear pins, an upper shear pin, a lower shear pin or an upper shear pin and a lower shear pin are simultaneously sheared, partial earthquake energy is dissipated, a support body assembly and an upper component slide in a concave curved surface bottom plate or a spherical crown steel lining plate assembly and a lower component slide in the concave curved surface top plate or slide in two directions simultaneously after the shear pins are sheared, kinetic energy is converted into potential energy and heat energy in the friction sliding process, the earthquake energy is dissipated, the earthquake force is reduced to be transmitted to an upper structure, the earthquake reaction of the structure is reduced, when the support body slides to a set displacement, the support body is limited by the left side plate, the right side plate, the front side plate and the rear side plate of the support top plate or the support bottom plate to continue sliding, prevent that the upper portion roof beam body from sliding surpassing the dropping of displacement back roof beam body to effectively guarantee the safety of bridge.
The technical features of the composite friction pendulum seismic mitigation and isolation bearing of the present invention will be further described with reference to the accompanying drawings and embodiments.
Drawings
Fig. 1 to 5 are schematic structural views of a composite friction pendulum seismic mitigation and isolation bearing of the utility model:
FIG. 1 is a front view (semi-sectional view), FIG. 2 is a left side view (semi-sectional view), FIG. 3 is a top view, FIG. 4 is a cross-sectional view A-A of FIG. 1, and FIG. 5 is a cross-sectional view B-B of FIG. 1;
fig. 6 is a schematic view of the first sliding mechanism and the second sliding mechanism being arranged alternately;
FIG. 7 is a schematic structural view (cross-section) of a spherical cap steel lining plate and a support body in sliding connection (through a spherical surface rotation friction pair);
FIG. 8 is a schematic structural view (cross-sectional view) of a spherical cap steel liner plate;
fig. 9 to 11 are schematic structural views of the support body:
fig. 9 is a front view (sectional view), fig. 10 is a left side view (sectional view), and fig. 11 is a top view;
in the figure: 1-base plate, 101-left baffle i, 102-right baffle i, 103-front baffle i, 104-back baffle i, 105-square concave curved surface i, 106-anchor member joint block i, 2-support body, 21-square lower part, 211-lower guide block i, 212-convex curved surface ii, 22-square upper part, 221-upper guide block ii, 222-concave spherical surface ii, 3-spherical crown steel lining plate, 31-convex curved surface iii, 32-convex spherical surface iii, 4-base top plate, 401-left baffle ii, 402-right baffle ii, 403-front baffle ii, 404-back baffle ii, 405-square concave curved surface ii, 406-anchor member joint block ii, 5-anchor member, 6-spherical surface, wear plate 7-upper wear plate curved surface, 8-upper stainless steel plate, 9-upper side stainless steel plate, 10-lower stainless steel plate, 11-lower curved surface wear plate, 12-lower side stainless steel plate, 13-upper shear pin, 14-upper shear plate, 15-lower shear pin, 16-lower shear plate.
Detailed Description
A composite friction pendulum seismic mitigation and isolation support comprises a support top plate 4 and a support bottom plate 1, wherein a spherical crown steel lining plate 3 and a support body 2 are sequentially arranged between the support top plate and the support bottom plate, the support top plate is in sliding connection with the spherical crown steel lining plate 3 through an upper curved surface sliding friction pair to form a first sliding mechanism, the support body 2 is in sliding connection with the support bottom plate 1 through a lower curved surface sliding friction pair to form a second sliding mechanism, the first sliding mechanism and the second sliding mechanism are arranged in a staggered mode, and the staggered angle theta of the first sliding mechanism is larger than 0 degree and smaller than 90 degrees; the sliding direction of the upper curved surface sliding friction pair is transverse or longitudinal, and the sliding direction of the lower curved surface sliding friction pair is longitudinal or transverse;
the upper curved surface sliding friction pair comprises an upper stainless steel plate 8 and an upper curved surface wear-resisting plate 7, the upper stainless steel plate 8 is arranged in a square concave curved surface II 405 on the bottom surface of the support top plate 4, the upper curved surface wear-resisting plate 7 is embedded in a groove of a convex curved surface III 31 on the top surface of the spherical crown steel lining plate 3, the square concave curved surface II corresponds to the curvature radius of the convex curved surface III, and the upper stainless steel plate 8 corresponds to the curvature radius of the upper curved surface wear-resisting plate 7; the lower curved surface sliding friction pair comprises a lower stainless steel plate 10 and a lower curved surface wear-resisting plate 11, the lower stainless steel plate 10 is arranged in a square concave curved surface I105 on the top surface of the base plate of the support, the lower curved surface wear-resisting plate 11 is embedded in a groove of a convex curved surface II 212 on the bottom surface of the support body 2, the curvature radius of the square concave curved surface I corresponds to that of the convex curved surface II, and the curvature radius of the lower stainless steel plate 10 corresponds to that of the lower curved surface wear-resisting plate 11;
first glide machanism through the sphere revolute the friction vice with the second glide machanism rotates to be connected, sphere revolute the friction vice establish at first glide machanism's spherical crown steel lining board 3 and second glide machanism between the supporter 2, including cladding at the corrosion resistant plate or electroplating hard chromium layer of spherical crown steel lining board bottom surface and set up the sphere antifriction plate 6 at the supporter top surface, the supporter top surface is concave spherical II 222, and sphere antifriction plate 6 inlays in the concave spherical II, spherical crown steel lining board lower extreme is spherical radius and the corresponding convex spherical surface III 32 of concave spherical II, corrosion resistant plate or electroplating hard chromium layer cladding are on convex spherical surface III surfaces.
The curvature radius of a convex spherical surface III at the lower end of the spherical cap steel lining plate is 0.7-2.8 times of the projection diameter of the spherical wear-resisting plate 6, the curvature radius is small in rotating moment, the rotation is flexible, the force transmission of the structure is uniform and reliable, the phenomenon of necking of force does not occur, and the structure is compact and reasonably suitable for the requirement of large rotation angle of the support.
The support base plate 1 is an upward rectangular concave basin and comprises a rectangular base plate, a left baffle I101, a right baffle I102, a front baffle I103 and a rear baffle I104 which are connected to the periphery of the rectangular base plate, the square concave curved surface I105 is formed in the top surface of the rectangular base plate, and the lower stainless steel plate 10 is arranged on the upper surface of the square concave curved surface I; the outer sides of the front baffle I and the rear baffle I are provided with an anchoring piece connecting block I106 connected with an anchoring assembly, the inner side surfaces of the front baffle I and the rear baffle I are provided with lower side surface stainless steel plates 12, and the upper end surfaces of the left baffle I and the right baffle I are respectively connected with a lower shearing plate 16 through lower shearing pins 15; the square lower part 21 of the support body 2 is located in a rectangular concave basin of the support base plate, and lower guide blocks I211 are arranged on the left side and the right side of the square lower part of the support body, so that a lower guide mechanism is formed by the lower guide blocks I and the lower stainless steel plates 12 on the inner sides of the left baffle I and the right baffle I of the support base plate;
the downward rectangular concave basin of the support top plate 4 comprises a rectangular top plate, a left baffle II 401, a right baffle II 402, a front baffle II 403 and a rear baffle II 404 which are connected to the periphery of the rectangular top plate, the square concave curved surface II 405 is arranged on the bottom surface of the rectangular top plate, and the upper stainless steel plate 8 is arranged on the lower surface of the square concave curved surface II; the outer sides of the front baffle II and the rear baffle II are provided with an anchoring piece connecting block II 406 connected with an anchoring assembly, the inner side surfaces of the front baffle II and the rear baffle II are provided with an upper side stainless steel plate 9, and the lower end surfaces of the left baffle II and the right baffle II are respectively connected with an upper shear plate 14 through upper shear pins 13; spherical crown steel lining plate 3 and the square upper portion 22 upper portion of supporter 2 are enclosed in support roof 4 preceding baffle II all around, backplate II, left baffle II and right baffle II, the square upper portion 22 of supporter falls in the rectangle basin of support roof, the side is provided with guide block II 221 around the square upper portion 22 of supporter to form guiding mechanism with the upside corrosion resistant plate 9 of support roof preceding baffle II and backplate II inboards.
The friction surface of sphere antifriction plate 6 is equipped with honeycomb oil storage tank, scribbles high-quality silicone grease emollient in the honeycomb oil storage tank, the friction surface of going up curved surface antifriction plate 7 and lower curved surface antifriction plate 11 is equipped with honeycomb oil storage tank, scribbles high-quality silicone grease emollient in the honeycomb oil storage tank.
The square upper part and the square lower part of the support body 2 are of an integral structure or a split structure, the split structure is more suitable for adjusting different staggered angles of the first sliding mechanism and the second sliding mechanism, and the square upper part is connected with the square lower part into a whole through bolts or welding when the split structure is adopted.
The spherical wear-resisting plate 6, the upper curved wear-resisting plate 7 and the lower curved wear-resisting plate 11 are polytetrafluoroethylene sliding plates or modified polytetrafluoroethylene sliding plates or ultrahigh-performance polytetrafluoroethylene sliding plates or ultrahigh-molecular-weight polyethylene wear-resisting sliding plates.
Claims (6)
1. A composite friction pendulum vibration reduction and isolation support comprises a support top plate and a support bottom plate; the method is characterized in that: the spherical crown steel lining plate (3) and the support body (2) are sequentially arranged between the support top plate and the support bottom plate, the support top plate is in sliding connection with the spherical crown steel lining plate through the upper curved surface sliding friction pair to form a first sliding mechanism, the support body is in sliding connection with the support bottom plate (1) through the lower curved surface sliding friction pair to form a second sliding mechanism, the first sliding mechanism and the second sliding mechanism are arranged in a staggered mode, and the staggered angle theta of the first sliding mechanism and the second sliding mechanism is larger than 0 degree and smaller than 90 degrees; the sliding direction of the upper curved surface sliding friction pair is the bridge transverse direction or the bridge longitudinal direction, and the sliding direction of the lower curved surface sliding friction pair is the bridge longitudinal direction or the bridge transverse direction;
the upper curved surface sliding friction pair comprises an upper stainless steel plate (8) and an upper curved surface wear-resisting plate (7), the upper stainless steel plate is arranged in a square concave curved surface II (405) on the bottom surface of the support top plate (4), the upper curved surface wear-resisting plate is embedded in a groove of a convex curved surface III (31) on the top surface of the spherical crown steel lining plate, the curvature radius of the square concave curved surface II corresponds to that of the convex curved surface III, and the curvature radius of the upper stainless steel plate corresponds to that of the upper curved surface wear-resisting plate;
the lower curved surface sliding friction pair comprises a lower stainless steel plate (10) and a lower curved surface wear-resisting plate (11), the lower stainless steel plate is arranged in a square concave curved surface I (105) on the top surface of the base plate of the support, the lower curved surface wear-resisting plate is embedded in a groove of a convex curved surface II (212) on the bottom surface of the support body, the curvature radius of the square concave curved surface I corresponds to that of the convex curved surface II, and the curvature radius of the lower stainless steel plate corresponds to that of the lower curved surface wear-resisting plate;
first glide machanism through the sphere revolute friction vice with the second glide machanism rotates to be connected, sphere revolute friction is vice to be established between spherical crown steel lining board (3) of first glide machanism and supporter (2) of second glide machanism, including cladding stainless steel board or electroplating hard chromium layer and spherical antifriction plate (6) of setting at the supporter top surface in spherical crown steel lining board bottom surface, the supporter top surface is concave spherical surface II (222), and inlay spherical antifriction plate (6) in the concave spherical surface II, spherical crown steel lining board lower extreme is spherical radius and the convex spherical surface III (32) that concave spherical surface II is corresponding, stainless steel board or electroplating hard chromium layer cladding are on convex spherical surface III surface.
2. The composite friction pendulum seismic mitigation and isolation bearing of claim 1, wherein: the curvature radius of a convex spherical surface III (32) at the lower end of the spherical cap steel lining plate is 0.7-2.8 times of the projection diameter of the spherical wear-resisting plate (6).
3. The composite friction pendulum seismic mitigation and isolation bearing of claim 2, wherein: the support base plate (1) is an upward rectangular concave basin and comprises a rectangular base plate, a left baffle I (101), a right baffle I (102), a front baffle I (103) and a rear baffle I (104) which are connected to the periphery of the rectangular base plate, the square concave curved surface I (105) is arranged on the top surface of the rectangular base plate, and the lower stainless steel plate (10) is arranged on the upper surface of the square concave curved surface I; the outer sides of the front baffle I and the rear baffle I are provided with anchor piece connecting blocks I (106) connected with the anchor assembly, the inner side surfaces of the front baffle I and the rear baffle I are provided with lower side surface stainless steel plates (12), and the upper end surfaces of the left baffle I and the right baffle I are respectively connected with a lower shear plate (16) through lower shear pins (15); the square lower part (21) of the support body is located in the rectangular concave basin of the support base plate, and lower guide blocks I (211) are arranged on the left side and the right side of the square lower part of the support body, so that a lower guide mechanism is formed by the lower guide blocks I and lower stainless steel plates (12) on the inner sides of a left baffle I and a right baffle I of the support base plate;
the support top plate (4) is a downward rectangular concave basin and comprises a rectangular top plate, a left baffle II (401), a right baffle II (402), a front baffle II (403) and a rear baffle II (404) which are connected to the periphery of the rectangular top plate, the square concave curved surface II (405) is arranged on the bottom surface of the rectangular top plate, and the upper stainless steel plate (8) is arranged on the lower surface of the square concave curved surface II; the outer sides of the front baffle II and the rear baffle II are provided with anchor part connecting blocks II (406) connected with the anchor components, the inner side surfaces of the front baffle II and the rear baffle II are provided with upper side stainless steel plates (9), and the lower end surfaces of the left baffle II and the right baffle II are respectively connected with upper shear plates (14) through upper shear pins (13); in square upper portion (22) of spherical crown steel lining board (3) and supporter (2) is enclosed in preceding baffle II, backplate II, left baffle II and the right baffle II around support roof (4), square upper portion (22) of supporter falls in the rectangle concave basin of support roof, and the front and back side on the square upper portion of supporter is provided with guide block II (221) to form guiding mechanism with upside corrosion resistant plate (9) of support roof preceding baffle II and backplate II inboards.
4. The composite friction pendulum seismic mitigation and isolation bearing of claim 3, wherein: the friction surface of sphere antifriction plate (6) is equipped with honeycomb oil storage tank and paints high-quality silicone grease emollient, the friction surface of going up curved surface antifriction plate 7 and lower curved surface antifriction plate (11) is equipped with honeycomb oil storage tank and paints high-quality silicone grease emollient.
5. The composite friction pendulum seismic mitigation and isolation bearing of claim 4, wherein: the square upper part (22) and the square lower part (21) of the support body (2) are of an integral structure or a split structure, and the square upper part and the square lower part are connected into a whole through bolts or welding when the square upper part and the square lower part are of the split structure.
6. The composite friction pendulum seismic mitigation and isolation bearing of claim 5, wherein: the spherical wear-resisting plate (6), the upper curved wear-resisting plate (7) and the lower curved wear-resisting plate (11) are polytetrafluoroethylene sliding plates, or modified polytetrafluoroethylene sliding plates, ultrahigh-performance polytetrafluoroethylene sliding plates or ultrahigh-molecular-weight polyethylene wear-resisting sliding plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121041297.8U CN215329329U (en) | 2021-05-14 | 2021-05-14 | Compound friction pendulum subtracts isolation bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121041297.8U CN215329329U (en) | 2021-05-14 | 2021-05-14 | Compound friction pendulum subtracts isolation bearing |
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| CN215329329U true CN215329329U (en) | 2021-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116720239A (en) * | 2023-05-05 | 2023-09-08 | 中交公路长大桥建设国家工程研究中心有限公司 | Design method and system for anisotropic friction pendulum vibration reduction and isolation support |
-
2021
- 2021-05-14 CN CN202121041297.8U patent/CN215329329U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116720239A (en) * | 2023-05-05 | 2023-09-08 | 中交公路长大桥建设国家工程研究中心有限公司 | Design method and system for anisotropic friction pendulum vibration reduction and isolation support |
| CN116720239B (en) * | 2023-05-05 | 2024-02-27 | 中交公路长大桥建设国家工程研究中心有限公司 | Design method and system for anisotropic friction pendulum vibration reduction and isolation support |
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