Overlapped anti-overturning two-way movable support

Abstract

The application provides a superimposed anti-overturning bidirectional movable support, and relates to the technical field of bridge structures. The superimposed anti-overturning bidirectional movable support comprises a first support and a second support. The first support comprises a first lower support unit and a first upper support unit which are movably connected. The first lower support unit and the first upper support unit can move relative to each other along the bridge width direction. The second support comprises four second supports which are arranged in two horizontal rows and two vertical rows. The second support comprises a second lower support unit and a second upper support unit which are movably connected. The second lower support unit is connected to the first upper support unit. The second lower support unit and the second upper support unit can move relative to each other along the bridge length direction. The superimposed anti-overturning bidirectional movable support can not only realize longitudinal displacement, but also realize transverse displacement. The superimposed anti-overturning bidirectional movable support has the functions of anti-overturning and bidirectional movement, so that the functions of a single support are maximized and diversified.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge structure, and in particular to a superimposed anti-overturning bidirectional movable support. BACKGROUND

[0002] With the rapid development of expressways and urban overpass viaducts, the structural type of bridges presents a diversified development trend, and a large number of curved bridges and ramp bridges appear. These bridges are usually narrow and have small curve radii, generally adopt single-pier column support, and have limited self-bearing capacity. Once a large eccentric load appears, the bridge is prone to overturning. In recent years, a number of major accidents of bridge overturning or collapse due to eccentric load have occurred, which is heart-rending. Bridge construction enterprises are also trying to find ways to improve the structure of various components or implement measures to avoid such accidents as much as possible.

[0003] At present, plate rubber bearings, pot rubber bearings and spherical bearings are often used as support connection structures of highway bridges in domestic highway bridges. These types of bearings each have unique advantages but do not have the ability to resist tension and overturning. Whether for highway curved bridges or for deck traffic bridges, the bearing is required to have the functions of resisting tension and overturning. For ordinary bridge bearings of curved bridges and ramp bridges, the probability of bridge overturning is high once a large eccentric load occurs.

[0004] At present, the bearings with tension function mainly include tension-compression pot bearings and center tension rod type spherical bearings. These bearings can withstand vertical pressure, upward tension and horizontal load, basically meeting the requirements of bridge use function for bearings. However, the tension-compression pot bearing uses rubber as the main material, which is prone to aging and has a short service life. The center tension rod type spherical bearing has a too flexible rotating center plate due to the spherical structure, and has weak anti-overturning capacity once the bridge eccentric load is too large.

[0005] The applicant finds that at least the following technical problems exist in the prior art: Although some bearings in the prior art attempt to design anti-overturning, such bearings can only realize unidirectional displacement while preventing overturning, have single function and do not have the ability of multidirectional displacement. SUMMARY

[0006] The present application relates to the technical field of bridge structure, and in particular to a superimposed anti-overturning bidirectional movable support.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] The application discloses a superimposed anti-overturning bidirectional movable support, which comprises a first support and a second support.

[0009] The second support comprises four second supports arranged in two horizontal rows and two vertical rows.

[0010] The second support comprises a second lower support unit and a second upper support unit which are movably connected, the second lower support unit is connected with the first upper support unit, the second upper support unit is connected with a bridge span structure, and the second lower support unit and the second upper support unit can move relative to each other along the bridge length direction.

[0011] Preferably, the first lower support unit comprises a first lower support plate and a first planar Teflon plate, the top of the first lower support plate is provided with a first convex ring, the top of the first convex ring is provided with a first circular groove, and the first planar Teflon plate is arranged in the first circular groove.

[0012] The first upper support unit comprises a first upper support plate, a first tensile plate and a first sliding plate, two first tensile plates are symmetrically connected to the bottom of the first upper support plate, and the first sliding plate is connected to the bottom of the first upper support plate and located between the two first tensile plates.

[0013] The first lower support unit and the first upper support unit are slidably connected, the first upper support plate and the two first tensile plates form a first sliding space for the first convex ring to slide, and the bottom of the first sliding plate is in contact with the top of the first planar Teflon plate.

[0014] Preferably, the first upper support unit further comprises a first wear-resistant plate and a first fastening bolt, a first mounting groove is formed in the first tensile plate, the first wear-resistant plate is arranged in the first mounting groove and the top of the first wear-resistant plate is in contact with the first convex ring, the first fastening bolt is threadedly connected to the first tensile plate and the top of the first fastening bolt is in contact with the bottom of the first wear-resistant plate, and the first fastening bolt can adjust the relative height of the first wear-resistant plate.

[0015] Preferably, the first upper support unit further comprises a first rib plate which is connected with the first upper support plate and the first tensile plate.

[0016] Preferably, the second lower support unit comprises a second lower support plate and a second planar Teflon plate, the top of the second lower support plate is provided with a second convex ring, the top of the second convex ring is provided with a second circular groove, and the second planar Teflon plate is arranged in the second circular groove.

[0017] The second upper support unit comprises a second upper support plate, two second tensile-resistant plates symmetrically connected to the bottom of the second upper support plate, and a second sliding plate connected to the bottom of the second upper support plate and located between the two second tensile-resistant plates.

[0018] The second lower support unit is slidingly connected to the second upper support unit, and the second upper support plate and the two second tensile-resistant plates form a second sliding space for the second convex ring to slide.

[0019] Preferably, the second upper support unit further comprises a second wear-resistant plate and a second fastening bolt, the second tensile-resistant plate is provided with a second mounting groove, the second wear-resistant plate is arranged in the second mounting groove and the top of the second wear-resistant plate is in contact with the second convex ring, the second fastening bolt is threadedly connected to the second tensile-resistant plate and the top of the second fastening bolt is in contact with the bottom of the second wear-resistant plate, and the second fastening bolt can adjust the relative height of the second wear-resistant plate.

[0020] Preferably, the second upper support unit further comprises a second rib plate connected to the second upper support plate and the second tensile-resistant plate.

[0021] Preferably, the first lower support unit further comprises a first tensile-resistant anchoring assembly connected to the bottom of the first lower support plate, and the first tensile-resistant anchoring assembly is fixedly connected to the pier.

[0022] Preferably, the second upper support unit further comprises a second tensile-resistant anchoring assembly connected to the top of the second upper support plate, and the second tensile-resistant anchoring assembly is fixedly connected to the bridge span structure.

[0023] The superimposed anti-overturning bidirectional movable support mainly serves to connect two adjacent bridge span structures, and can connect two different bridge span structures through two rows of second supports arranged in parallel along the bridge length direction.

[0024] The superimposed anti-overturning bidirectional movable support not only can realize longitudinal displacement, but also can realize transverse displacement, and has the functions of anti-overturning and bidirectional movement, thereby maximizing and diversifying the functions of a single support. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or prior art description. Obviously, the drawings described below only illustrate some of the embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on these drawings belong to the scope of protection of the present application.

[0026] Figure 1 is a cross-sectional structural view of the bridge width direction of the present application;

[0027] Figure 2 is a cross-sectional structural view of the bridge length direction of the present application;

[0028] Figure 3 is a cross-sectional structural view of the second support along the bridge length direction of the present application;

[0029] Figure 4 is a top view structural view of the present application;

[0030] 1, first lower support unit; 11, first lower support plate; 111, first convex ring; 12, first planar Teflon plate; 13, first tensile-resistant anchoring assembly;

[0031] 2, first upper support unit; 21, first upper support plate; 22, first tensile-resistant plate; 23, first sliding plate; 24, first wear-resistant plate; 25, first fastening bolt; 26, first rib plate;

[0032] 3, second lower support unit; 31, second lower support plate; 311, second convex ring; 32, second planar Teflon plate;

[0033] 4, second upper support unit; 41, second upper support plate; 42, second tensile-resistant plate; 43, second sliding plate; 44, second wear-resistant plate; 45, second fastening bolt; 46, second rib plate; 47, second tensile-resistant anchoring assembly. DETAILED DESCRIPTION

[0034] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0035] In the description of the present application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "lateral", "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side" and the like is based on the drawings shown and is only for the purpose of facilitating the description of the present application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. Figure 1

[0036] In the description of the present application, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] With reference to Figures 1 to 4 , the embodiment refers to a superimposed anti-overturning bidirectional movable support, which comprises a first support and a second support, the volume of the first support is greater than that of the second support, the first support is located below, and the second support is located above, and the first support can serve as a supporting platform for the second support;

[0038] The first support comprises a first lower support unit 1 and a first upper support unit 2, the first lower support unit 1 and the first upper support unit 2 are movably connected, the first lower support unit 1 is connected with the pier, and the first lower support unit 1 and the first upper support unit 2 can move relative to each other in the bridge width direction, realizing transverse bridge movement, and at the same time, the first lower support unit 1 and the first upper support unit 2 can mutually restrict each other, so that one side will not make the other side swing excessively, thereby realizing the anti-overturning effect;

[0039] The second support comprises a second lower support unit 3 and a second upper support unit 4, the second lower support unit 3 and the second upper support unit 4 are movably connected, the second lower support unit 3 is connected with the first upper support unit 2, and the connection here is preferably fixed connection, so as to form a connection between the first support and the second support, the second upper support unit 4 is connected with the bridge span structure, and the second lower support unit 3 and the second upper support unit 4 can move relative to each other in the bridge length direction, realizing longitudinal bridge movement, and at the same time, the second lower support unit 3 and the second upper support unit 4 can mutually restrict each other, so that one side will not make the other side swing excessively, thereby realizing the anti-overturning effect;

[0040] ​The number of the second supports is four, the four second supports are arranged in two horizontal rows and two vertical rows, forming a 2X2 array, in the bridge length direction, forming two rows and each row has two second supports arranged side by side, the superimposed anti-overturning bidirectional movable support mentioned in the embodiment is mainly used for connecting two adjacent bridge span structures in actual application, two rows of second supports arranged in parallel along the bridge length direction are connected to two different bridge span structures respectively, in this way, two adjacent bridge span structures can be connected by only one superimposed anti-overturning bidirectional movable support.

[0041] The superimposed anti-overturning bidirectional movable support can not only realize longitudinal displacement, but also realize transverse displacement, has the functions of anti-overturning and bidirectional movement, thereby maximizing and diversifying the functions of a single support, the service life of the highway bridge support can be effectively prolonged by using the superimposed anti-overturning bidirectional movable support, the overall structure of the superimposed anti-overturning bidirectional movable support is simpler and clearer, easy to manufacture, and the effect is remarkable, which is worth promoting.

[0042] As an optional implementation, the first lower support unit 1 comprises a first lower support plate 11 and a first planar Teflon plate 12, the overall cross section of the first lower support plate 11 is in the shape of an I-beam, the top of the first lower support plate 11 is provided with a first convex ring 111, the top of the first convex ring 111 is provided with a first circular groove, and the first planar Teflon plate 12 is arranged in the first circular groove;

[0043] The first upper support unit 2 comprises a first upper support plate 21, two first tensile plates 22 and a first sliding plate 23, the two first tensile plates 22 are symmetrically connected to the bottom of the first upper support plate 21, the two first tensile plates 22 are preferably in the shape of L, the first sliding plate 23 is connected to the bottom of the first upper support plate 21 and located between the two first tensile plates 22, the first sliding plate 23 is preferably a stainless steel plate and is preferably welded to the bottom of the first upper support plate 21;

[0044] The first lower support unit 1 is slidably connected to the first upper support unit 2, a first sliding space for the first convex ring 111 to slide is formed between the first upper support plate 21 and the two first tensile plates 22, the bottom of the first sliding plate 23 is in contact with the top of the first planar Teflon plate 12, and the first upper support plate 21 and the first lower support plate 11 are in contact and slide through the first sliding plate 23 and the first planar Teflon plate 12;

[0045] The first convex ring 111 and the first sliding space cooperate to resist tension, thereby finally enabling the first lower support plate 11 and the first upper support plate 21 to mutually restrict each other, so that one side does not swing excessively, and the first support does not come out of the first sliding space with the anti-overturning function during the sliding process, thereby realizing the anti-overturning effect.

[0046] It is worth noting that after the first protruding ring 111 on the first lower support plate 11 is installed into the first sliding space of the first upper support plate 21, the two ends of the length direction of the first sliding space are preferably fixedly connected with steel plates, and a limiting effect is formed through the steel plates, so as to ensure that the first lower support plate 11 cannot be separated from the first sliding space no matter how it slides, thereby effectively ensuring that the anti-pulling function can always play a role.

[0047] As an optional implementation, the first upper support unit 2 further comprises a first wear-resistant plate 24 and a first fastening bolt 25, the first anti-pulling plate 22 is provided with a first installation groove, the first wear-resistant plate 24 is arranged in the first installation groove and the top of the first wear-resistant plate 24 is in contact with the first protruding ring 111, the first wear-resistant plate 24 can play a buffering and wear-resistant role, buffering the wear caused by direct contact of steel, and at the same time playing a role of facilitating sliding;

[0048] The first fastening bolt 25 is threadedly connected to the first anti-pulling plate 22 and the top of the first fastening bolt 25 is in contact with the bottom of the first wear-resistant plate 24, the first fastening bolt 25 can adjust the relative height of the first wear-resistant plate 24, preferably a hole is punched on the first anti-pulling plate 22 at a position corresponding to below the first installation groove, and then the first fastening bolt 25 is installed, by rotating the first fastening bolt 25, the height of the first wear-resistant plate 24 can be adjusted, so as to adjust the tightness of the contact between the first wear-resistant plate 24 and the first protruding ring 111 of the first lower support plate 11, and the thickness and length of the first wear-resistant plate 24 can be determined according to the type of the support;

[0049] In addition, four fluorine sliding plates can also be preferably installed on the inner side of the first sliding space formed between the first upper support plate 21 and the two first anti-pulling plates 22, so that the first protruding ring 111 can slide more freely in the sliding space and be more wear-resistant.

[0050] As an optional implementation, the first upper support unit 2 further comprises a first rib plate 26, the first rib plate 26 is connected with the first upper support plate 21 and the first anti-pulling plate 22, and the first rib plate 26 can effectively improve the structural strength of the first upper support unit 2 at the connection between the first upper support plate 21 and the first anti-pulling plate 22, the number of the first rib plate 26 is several, and the first rib plate 26 is uniformly distributed to improve the structural strength together.

[0051] As an optional implementation, the second lower support unit 3 comprises a second lower support plate 31 and a second planar fluorine plate 32, the overall cross section of the second lower support plate 31 is in the shape of an I-beam, the top of the second lower support plate 31 is provided with a second protruding ring 311, the top of the second protruding ring 311 is provided with a second circular groove, and the second planar fluorine plate 32 is arranged in the second circular groove;

[0052] The second upper support unit 4 comprises a second upper support plate 41, two second tensile-resistant plates 42 symmetrically connected to the bottom of the second upper support plate 41, and a second sliding plate 43 connected to the bottom of the second upper support plate 41 and located between the two second tensile-resistant plates 42, wherein the second sliding plate 43 is preferably a stainless steel plate and is preferably welded to the bottom of the second upper support plate 41;

[0053] The second lower support unit 3 is slidingly connected to the second upper support unit 4, the second upper support plate 41 and the two second tensile-resistant plates 42 form a second sliding space for the second convex ring 311 to slide, the bottom of the second sliding plate 43 is in contact with the top of the second planar Teflon plate 32, and the second upper support plate 41 and the second lower support plate 31 are in contact and slide through the second sliding plate 43 and the second planar Teflon plate 32;

[0054] The second convex ring 311 and the second sliding space mutually restrict each other to achieve the tensile-resistant function, so that the second lower support plate 31 and the second upper support plate 41 mutually restrict each other and do not excessively swing, so that the second support always does not come out of the second sliding space during the sliding process, thereby achieving the anti-overturning effect.

[0055] Notably, after the second convex ring 311 on the second lower support plate 31 is installed into the second sliding space of the second upper support plate 41, the two ends of the second sliding space in the length direction are preferably fixedly connected with steel plates to form a limiting effect, so as to ensure that the second lower support plate 31 always cannot come out of the second sliding space no matter how it slides, thereby effectively ensuring that the tensile-resistant function can always play a role.

[0056] As an optional implementation, the second upper support unit 4 further comprises a second wear-resistant plate 44 and a second fastening bolt 45, the second tensile-resistant plate 42 is provided with a second installation groove, the second wear-resistant plate 44 is arranged in the second installation groove and the top thereof is in contact with the second convex ring 311, the second wear-resistant plate 44 can play a buffering and wear-resistant role, buffering the wear caused by direct contact of steel, and facilitating sliding;

[0057] The second fastening bolt 45 is threadedly connected to the second tensile-resistant plate 42 and the top thereof is in contact with the bottom of the second wear-resistant plate 44, the second fastening bolt 45 can adjust the relative height of the second wear-resistant plate 44, preferably being punched on the second tensile-resistant plate 42 at a position corresponding to below the second installation groove, and then the second fastening bolt 45 is installed, the height of the second wear-resistant plate 44 can be adjusted by rotating the second fastening bolt 45, so as to adjust the tightness of the contact between the second wear-resistant plate 44 and the second convex ring 311 of the second lower support plate 31, and the thickness and length of the second wear-resistant plate 44 can be determined according to the type of the support;

[0058] In addition, the inner side of the second sliding space formed between the second upper support plate 41 and the two second tensile plates 42 is also preferably provided with a Teflon sliding plate, so that the second convex ring 311 can slide more freely in the sliding space and be more wear-resistant.

[0059] It is worth noting that the friction coefficient of the transverse displacement corresponding to the superimposed anti-overturning bidirectional movable support can be adjusted in the range of 100-0 fixed value, and the tightness of the second fastening bolt 45 can be flexibly selected according to the actual use needs. When the second fastening bolt 45 is adjusted upward to make the connection tighter, the friction coefficient can be increased, and when the second fastening bolt 45 is adjusted downward to make the connection looser, the friction coefficient can be reduced. By adjusting the corresponding friction coefficient to the state suitable for the actual bearing environment of the highway bridge, various loads can be effectively responded.

[0060] As an optional implementation, the second upper support unit 4 further comprises a second rib plate 46 connected with the second upper support plate 41 and the second tensile plate 42. The second rib plate 46 can effectively improve the structural strength of the second upper support unit 4 at the connection between the second upper support plate 41 and the second tensile plate 42. The number of the second rib plate 46 is several, and is uniformly distributed to improve the structural strength together.

[0061] In fact, in this embodiment, the structure of the first support and the four second supports are relatively similar, and the specific size of the first support and the second support can be determined and adjusted according to the actual needs of the bridge design.

[0062] As an optional implementation, the first lower support unit 1 further comprises a first tensile anchoring assembly 13 connected to the bottom of the first lower support plate 11. The first tensile anchoring assembly 13 is fixedly connected with the pier. Preferably, a connecting hole is formed at the corresponding position of each first tensile anchoring assembly 13 at the bottom of the first lower support plate 11. Then the top of the first tensile anchoring assembly 13 is connected to the corresponding connecting hole, and then the bottom of the first tensile anchoring assembly 13 is connected with the pier. All the connecting holes are uniformly and symmetrically distributed, so as to effectively balance the stress. The structure of the first tensile anchoring assembly 13 and the corresponding connection mode are both relatively conventional prior art, and therefore will not be further described.

[0063] As an optional implementation, the second upper support unit 4 further comprises a second tensile anchoring assembly 47 connected at the top of the second upper support plate 41, and the second tensile anchoring assembly 47 is fixedly connected with the bridge span structure. Preferably, a connecting hole is formed at the top of the second upper support plate 41 at the corresponding position of each second tensile anchoring assembly 47, and then the bottom of the second tensile anchoring assembly 47 is connected to the corresponding connecting hole, and then the top of the second tensile anchoring assembly 47 is connected with the bridge span structure. All the connecting holes are uniformly and symmetrically distributed, so as to effectively balance the stress. The structure of the second tensile anchoring assembly 47 and the corresponding connection mode are both conventional prior art, and thus will not be further described.

[0064] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A superimposed anti-overturning bidirectional movable support, characterized in that, The first support and the second support, the first support comprises a first lower support unit (1) and a first upper support unit (2) connected movably, the first lower support unit (1) is connected with a pier, the first lower support unit (1) and the first upper support unit (2) can move relatively along the bridge width direction; The number of the second support is four, and the four second supports are arranged in two horizontal rows and two vertical rows; The second support comprises a second lower support unit (3) and a second upper support unit (4) connected movably, the second lower support unit (3) is connected with the first upper support unit (2), the second upper support unit (4) is connected with a bridge span structure, and the second lower support unit (3) and the second upper support unit (4) can move relatively along the bridge length direction; The first lower support unit (1) comprises a first lower support plate (11) and a first planar fluorine plate (12), the top of the first lower support plate (11) is provided with a first convex ring (111), the top of the first convex ring (111) is provided with a first circular groove, and the first planar fluorine plate (12) is arranged in the first circular groove; The first upper support unit (2) comprises a first upper support plate (21), a first tensile plate (22) and a first sliding plate (23), two first tensile plates (22) are symmetrically connected to the bottom of the first upper support plate (21), and the first sliding plate (23) is connected to the bottom of the first upper support plate (21) and located between the two first tensile plates (22); The first lower support unit (1) and the first upper support unit (2) are slidably connected, a first sliding space for the first convex ring (111) to slide is formed between the first upper support plate (21) and the two first tensile plates (22), and the bottom of the first sliding plate (23) is in contact with the top of the first planar fluorine plate (12); The first upper support unit (2) further comprises a first wear-resistant plate (24) and a first fastening bolt (25), a first mounting groove is formed in the first tensile plate (22), the first wear-resistant plate (24) is arranged in the first mounting groove and the top of the first wear-resistant plate (24) is in contact with the first convex ring (111), the first fastening bolt (25) is threadedly connected to the first tensile plate (22) and the top of the first fastening bolt (25) is in contact with the bottom of the first wear-resistant plate (24), and the first fastening bolt (25) can adjust the relative height of the first wear-resistant plate (24); The second lower support unit (3) comprises a second lower support plate (31) and a second planar fluorine plate (32), the top of the second lower support plate (31) is provided with a second convex ring (311), the top of the second convex ring (311) is provided with a second circular groove, and the second planar fluorine plate (32) is arranged in the second circular groove; The second upper support unit (4) comprises a second upper support plate (41), two second tensile-resistant plates (42) and a second sliding plate (43), the two second tensile-resistant plates (42) are symmetrically connected to the bottom of the second upper support plate (41), and the second sliding plate (43) is connected to the bottom of the second upper support plate (41) and located between the two second tensile-resistant plates (42); The second lower support unit (3) is slidably connected with the second upper support unit (4), a second sliding space for the second convex ring (311) to slide is formed between the second upper support plate (41) and the two second tensile-resistant plates (42), and the bottom of the second sliding plate (43) is in contact with the top of the second planar Teflon plate (32); The second upper support unit (4) further comprises a second wear-resistant plate (44) and a second fastening bolt (45), the second tensile-resistant plate (42) is provided with a second mounting groove, the second wear-resistant plate (44) is arranged in the second mounting groove and the top of the second wear-resistant plate (44) is in contact with the second convex ring (311), the second fastening bolt (45) is threadedly connected to the second tensile-resistant plate (42) and the top of the second fastening bolt (45) is in contact with the bottom of the second wear-resistant plate (44), and the second fastening bolt (45) can adjust the relative height of the second wear-resistant plate (44).

2. The double acting counter-tilt stackable support of claim 1, wherein, The first upper support unit (2) further comprises a first rib plate (26), the first rib plate (26) is connected to the first upper support plate (21) and the first tensile-resistant plate (22).

3. The double acting counter-tilt stackable support of claim 1, wherein, The second upper support unit (4) further comprises a second rib plate (46), the second rib plate (46) is connected to the second upper support plate (41) and the second tensile-resistant plate (42).

4. The double acting counterbalanced superimposed anti-roll pendulum bearing of claim 1, wherein, The first lower support unit (1) further comprises a first tensile-resistant anchoring assembly (13), the first tensile-resistant anchoring assembly (13) is connected to the bottom of the first lower support plate (11), and the first tensile-resistant anchoring assembly (13) is fixedly connected with the pier.

5. The dual direction active support against overturning and roll stacking according to claim 1, wherein The second upper support unit (4) further comprises a second tensile-resistant anchoring assembly (47), the second tensile-resistant anchoring assembly (47) is connected to the top of the second upper support plate (41), and the second tensile-resistant anchoring assembly (47) is fixedly connected with the bridge span structure.

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