Horizontal force dispersing type shock insulation rubber support

Abstract

The utility model provides a horizontal force dispersing type shock insulation rubber support, and belongs to the technical field of bridge supports. The support comprises a first support plate, a support body and a second support plate which are sequentially arranged in an overlapped mode, the support body is fixed between the first support plate and the second support plate, one of the first support plate and the second support plate is used for being connected with a beam body, and the other one of the first support plate and the second support plate is used for being connected with an abutment. The first support plate is provided with an adjusting hole, the support further comprises a connecting piece and a limiting piece, the connecting piece penetrates through the adjusting hole to be connected with a first anchoring structure in a beam body or an abutment, the radial size of the adjusting hole is larger than that of the connecting piece, and the limiting piece is connected between the connecting piece and the first support plate and used for fixing the connecting piece to the first support plate. The radial size of the adjusting hole is larger than that of the connecting piece, so that the connecting piece can move in the adjusting hole to be matched with the position of the first anchoring structure and is matched with the limiting piece, and the first support plate is fixed to the preset installation position.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge bearings, and in particular relates to a horizontal force dispersion type seismic isolation rubber bearing. Background Art

[0002] As an important structural component connecting the superstructure and substructure of the bridge, the bridge bearing is a key component that "connects the upper and lower structures". Bridge bearings are important carriers for realizing the seismic reduction and isolation functions of bridges and are widely used in bridge engineering construction. Their structure and performance need to adapt to the needs of modern beam assembly construction to improve the overall construction efficiency.

[0003] During the assembly of the rubber bearing, it is necessary to embed relevant structural parts in the beam and pier in advance to facilitate the subsequent fixed installation of the rubber bearing between the beam and the pier. However, due to construction errors, the structural parts in the beam and pier are prone to deviate from the preset installation position, resulting in a low probability that the installation holes of the rubber bearing are aligned with the structural parts in the pier and beam at the same time during the installation of the rubber bearing, resulting in the inability to install the bearing or causing inconvenience in the installation of the bearing. Utility Model Content

[0004] The purpose of this application is to provide a horizontal force dispersion type seismic isolation rubber bearing to solve the above-mentioned technical problems existing in the prior art.

[0005] This application is implemented as follows:

[0006] An embodiment of the present application provides a horizontal force dispersion type seismic isolation rubber bearing, comprising a first bearing plate, a bearing body and a second bearing plate which are arranged in sequence and overlap each other, the bearing body being fixed between the first bearing plate and the second bearing plate, one of the first bearing plate and the second bearing plate being used to connect with the beam body, and the other being used to connect with the pier; the first bearing plate is provided with an adjustment hole, the bearing also comprises a connecting piece and a limiting piece, the connecting piece passes through the adjustment hole and is connected with a first anchoring structure in the beam body or the pier, the radial dimension of the adjustment hole is larger than the radial dimension of the connecting piece, the limiting piece is connected between the connecting piece and the first bearing plate, and is used to fix the connecting piece to the first bearing plate.

[0007] The technical solution provided by this application can achieve the following beneficial effects:

[0008] In the present application, an adjustment hole is set in the first support plate, and the radial dimension of the adjustment hole is set to be larger than the radial dimension of the connecting piece, so that the connecting piece can move in the adjustment hole to match the position of the first anchoring structure in the beam body or the pier, and connect with the first anchoring structure. The connecting piece can be fixed to the first support plate by using a limiter, so that the first support plate can be fixed to the first anchoring structure to stabilize the position of the first support plate; even if there is an installation error in the support, the center of the adjustment hole and the center of the first anchoring structure cannot be aligned, but due to the large radial dimension of the adjustment hole, the first anchoring structure is still within the range corresponding to the adjustment hole, and the position of the connecting piece can be adjusted in the adjustment hole, so that the connecting piece can pass through the adjustment hole to connect with the first anchoring structure, so that the first support plate can be installed according to the preset position, avoiding the position deviation of the first support plate, which causes the overall tilt of the support. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments of the utility model or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0010] Figure 1 It is a schematic diagram of the structure of a support for medium and low seismic intensity areas provided by some embodiments of the present application;

[0011] Figure 2 This application is about Figure 1 Detailed view of point A;

[0012] Figure 3 This is a top view of the support for medium and low seismic intensity areas provided by some embodiments of the present application Figure 1 ;

[0013] Figure 4 This is a top view of the support for medium and low seismic intensity areas provided by some embodiments of the present application Figure 2 ;

[0014] Figure 5 This is a top view of the support for medium and low seismic intensity areas provided by some embodiments of the present application Figure 3 ;

[0015] Figure 6 This is a top view of the support for medium and low seismic intensity areas provided by some embodiments of the present application Figure 4 ;

[0016] Figure 7 This is a schematic diagram of the structure of the support plate of the support body provided in some embodiments of the present application. Figure 1 ;

[0017] Figure 8 This is a schematic diagram of the structure of the support plate of the support body provided in some embodiments of the present application. Figure 2 .

[0018] In the figure: 100-first support plate, 110-adjustment hole, 200-support body, 210-elastic material layer, 220-support plate, 221-support protrusion, 300-second support plate, 400-connecting piece, 500-limiting piece, 600-positioning piece, 700-first anchoring structure, 800-second anchoring structure, 900-embedded steel plate. DETAILED DESCRIPTION

[0019] The following description provides many different embodiments or examples for implementing different features of the present invention. The components and arrangements described in the following specific examples are only used to simplify the present invention and are only used as examples, not to limit the present invention.

[0020] The present application embodiment provides a horizontal force dispersion type seismic isolation rubber bearing, referring to Figures 1 to 8 The support provided by the present application comprises a first support plate 100, a support body 200 and a second support plate 300 which are arranged in sequence and overlapped. The support body 200 is fixed between the first support plate 100 and the second support plate 300. One of the first support plate 100 and the second support plate 300 is used to connect with the beam body, and the other is used to connect with the pier.

[0021] The first support plate 100 is provided with an adjustment hole 110, and the support further includes a connecting member 400 and a limiting member 500. Figures 1 to 6 As shown, the connector 400 passes through the adjustment hole 110 to connect with the first anchoring structure 700 in the bridge or pier. When the first bearing plate 100 is installed on the beam body, the connector 400 passes through the adjustment hole 110 to connect with the first anchoring structure 700 embedded in the beam body. When the first bearing plate 100 is installed on the pier, the connector 400 passes through the adjustment hole 110 to connect with the first anchoring structure 700 embedded in the pier.

[0022] The radial dimension of the adjustment hole 110 is larger than the radial dimension of the connecting member 400, so the connecting member 400 can move in the adjustment hole 110, so that the connecting member 400 can be aligned with the first anchoring structure 700 and connected with the first anchoring structure 700. Due to the large radial dimension of the adjustment hole 110, when the first support plate 100 is installed on the beam body or the pier, even if the first anchoring structure 700 has an error when embedded and deviates from its preset embedded position, resulting in the center of the first anchoring structure 700 not being aligned with the center of the adjustment hole 110, the first anchoring structure 700 can still be within the coverage of the adjustment hole 110, so as to be connected and fixed with the connecting member 400.

[0023] After the connecting member 400 passes through the adjustment hole 110 and is connected to the first anchoring structure 700, the connecting member 400 is only fixed to the first anchoring structure 700, and the connecting member 400 cannot be fixed to the first support plate 100. Therefore, the support also includes a limit member 500, which is connected between the connecting member 400 and the first support plate 100, and is used to fix the connecting member 400 to the first support plate 100, thereby fixing the first support plate 100 to the first anchoring structure 700 and stabilizing the position of the first support plate 100.

[0024] In the prior art, the first support plate 100 and the second support plate 300 are generally provided with mounting holes, which are aligned with the pre-buried structural parts in the beam body and the pier, and then the first support plate 100 and the structural parts or the second support plate 300 and the structural parts are fixed by screws. Due to the existence of construction errors, when the first support plate 100 is aligned with the structural parts on the beam body, the second support plate 300 and the structural parts on the pier may not be aligned. Therefore, there may be a deviation between the actual installation position of the second support plate 300 and its preset installation position, so that the support body 200 that should be fixed between the first support plate 100 and the second support plate 300 cannot be stably fixed between the first support plate 100 and the second support plate 300. The unstable installation of the support body 200 includes the situation that the support is pulled and deformed by the first support plate 100 and the second support plate 300, or the situation that the connection between the support body 200 and the first support plate 100 or the second support plate 300 is unstable.

[0025] Therefore, in the embodiment of the present application, an adjustment hole 110 is provided on the first support plate 100, and a radial dimension of the adjustment hole 110 is provided to be larger than a radial dimension of the connecting member 400, so that the connecting member 400 has a movable space within the adjustment hole 110. Without changing the installation position of the first support plate 100, the connecting member 400 can move within the adjustment hole 110 to align with the first anchoring structure 700, thereby avoiding changes in the installation position of the first support plate 100, resulting in pulling or unstable connection between the first support plate 100 and the support body 200, and also avoiding positional deviation of the first support plate 100, resulting in overall tilt of the support.

[0026] The connector 400 has a movable space in the adjustment hole 110, which actually means that the first anchoring structure 700 used to fix the connector 400 can be fixed to the connector 400 as long as it is located within the range corresponding to the adjustment hole 110, and the first support plate 100 is stably connected to the first anchoring structure 700 through the cooperation between the connector 400 and the stopper 500. Therefore, even if there is an installation error in the pre-embedded process of the first anchoring structure 700, and the center of the first anchoring structure 700 cannot be aligned with the center of the adjustment hole 110 during the later assembly of the first support plate 100, the connector 400 can still be fixed to the first anchoring structure 700, thereby stabilizing the position of the first support plate 100.

[0027] Generally, only the adjustment hole 110 is provided on the first support plate 100, and the second support plate 300 is normally fixed to the beam body or the pier. Figure 1 As shown, a second anchoring structure 800 and an embedded steel plate 900 are embedded in the beam body, the second anchoring structure 800 is fixed to the embedded steel plate 900, and the second support plate 300 is directly fixedly connected to the second anchoring structure 800, so as to directly determine the position of the second support plate 300, and then determine the position of the first support plate 100 according to the position of the second support plate 300, and then the position of the connecting member 400 and the limiting member 500 can be controlled according to the position of the adjustment hole 110 on the first support plate 100 and the first anchoring structure 700 in the pier, so as to fix the first support plate 100 at a preset position. In other embodiments, the first support plate 100 and the second support plate 300 can both be provided with the adjustment hole 110.

[0028] In some embodiments of the present application, the position limiting member 500 may be a structure filled into the adjustment hole 110 after the connection member 400 is connected to the first anchoring structure 700. The structural shape of the position limiting member 500 has multiple sizes, which can be selected and used according to the distance between the connection member 400 and the hole wall of the adjustment hole 110, thereby limiting the relative position of the connection member 400 and the first support plate 100.

[0029] In other embodiments of the present application, reference Figures 1 to 6 As shown, the stopper 500 is directly fixed to the connector 400, and the stopper 500 is located on the surface of the first support plate 100 close to the support body 200, part of the stopper 500 covers the adjustment hole 110, and part of the stopper 500 presses against the surface of the first support plate 100. The stopper 500 fixed to the connector 400 presses against the surface of the first support plate 100, and the relative position of the connector 400 and the first support plate 100 is fixed by the friction between the stopper 500 and the surface of the first support plate 100. The stopper 500 presses against the surface of the first support plate 100, and the connector 400 can be fixed to the first support plate 100. The gap between the connector 400 and the hole wall in the adjustment hole 110 can be filled by pouring concrete later.

[0030] In order to improve the limiting effect of the limiting member 500 on the connecting member 400, it is necessary to enhance the friction between the limiting member 500 and the first support plate 100. In some preferred embodiments, mutually engaging grooves and protrusions may be provided between the surfaces of the limiting member 500 and the first support plate 100 that contact each other, and the limiting member 500 is further prevented from sliding relative to the first support plate 100 through the cooperation of the grooves and the protrusions.

[0031] In some other preferred embodiments of the present application, the length of the limiting member 500 is set to be greater than the radial dimension of the adjustment hole 110, so that the limiting member 500 has a certain length to ensure that both ends of the limiting member 500 in the length direction can be pressed against the surface of the first support plate 100. After the two ends of the limiting member 500 in the length direction are pressed against the surface of the first support plate 100, the first support plate 100 can support the two ends of the limiting member 500, and at the same time, the two ends of the limiting member 500 in the length direction are stably stressed, thereby improving the limiting effect on the connecting member 400.

[0032] When the position of the connecting member 400 is adjusted, the limiting member 500 will move together with the connecting member 400, and the relative position of the first support plate 100 and the support body 200 will remain stable. Since the limiting member 500 is relatively long in the length direction, the end of the limiting member 500 may abut against the support body 200, causing the limiting member 500 to be unable to move further. Therefore, it is further preferred that the extension line of the limiting member 500 in the length direction avoids the support body 200, and the support body 200 will not be in the length direction of the limiting member 500. Therefore, even if the position of the limiting member 500 is adjusted, the end of the limiting member 500 in the length direction will not abut against the support body 200.

[0033] Since part of the stopper 500 needs to cover the adjustment hole 110, part of the stopper 500 presses against the surface of the first support plate 100. During the installation of the stopper 500, before the inside of the adjustment hole 110 is filled, part of the stopper 500 covering the adjustment hole 110 is suspended in the air and is not supported, so the stopper 500 is easily deformed. In some embodiments of the present application, the thickness of the stopper 500 needs to be greater than the thickness of the first support plate 100. Figure 1 and Figure 2 As shown, the structural strength of the limiting member 500 is improved and the probability of deformation of the limiting member 500 is reduced.

[0034] During the installation of the support plate, it is generally necessary to set multiple connection points. Figures 3 to 6 As shown, the first support plate 100 is provided with a plurality of adjustment holes 110, and the plurality of adjustment holes 110 are arranged around the support body 200, so as to limit the support in the circumferential direction of the support body 200. When the first support plate 100 is installed on the beam body, the adjustment holes 110 are arranged in a one-to-one correspondence with the first anchoring structure 700 pre-buried in the beam body. When the first support plate 100 is installed on the pier, the adjustment holes 110 are arranged in a one-to-one correspondence with the first anchoring structure 700 pre-buried in the pier.

[0035] The plurality of adjustment holes 110 need to be arranged one by one with the plurality of first anchoring structures 700, and the installation positions of the plurality of adjustment holes 110 are determined by the installation position of the first support plate 100. In some preferred embodiments, the support provided in the embodiment of the present application further includes a positioning member 600, referring to Figure 1 and Figure 2 As shown, the positioning member 600 is located on the side of the first support plate 100 away from the support body 200 to avoid affecting the installation of the first support plate 100 and the support body 200. The positioning member 600 has a plurality of connecting parts, which correspond to the first anchoring structures 700 one by one, and the first anchoring structures 700 are fixed to the corresponding connecting parts.

[0036] By using the positioning piece 600 to connect multiple first anchoring structures 700 to form a whole, the relative positions of the multiple first anchoring structures 700 are determined to correspond to the distribution positions of the multiple adjustment holes 110 on the first support plate 100, so that each first anchoring structure 700 can be located within the distribution range of its corresponding adjustment hole 110, avoiding the situation where a single first anchoring structure 700 cannot be located within the distribution range of its corresponding adjustment hole 110.

[0037] Furthermore, the plurality of first anchoring structures 700 are connected together through the positioning member 600. When the first anchoring structures 700 are pre-buried, even if an operation error occurs, the plurality of first anchoring structures 700 will have the same error at the same time. When the first support plate 100 is subsequently installed, the connecting members 400 and the limiting members 500 corresponding to the plurality of first anchoring structures 700 can be moved synchronously. Figure 5 and Figure 6 shown. Figure 5 In the embodiment, the plurality of first anchoring structures 700 are aligned with the adjustment holes 110 one by one. Figure 6 In the figure, the multiple first anchoring structures 700 are offset toward the right side relative to the adjustment hole 110, and correspondingly, the multiple connecting members 400 and the limiting members 500 are also synchronously offset toward the right side to fix the first support plate 100 at a preset position.

[0038] In some embodiments, the connection portion on the positioning member 600 may be a mounting through hole, and the first anchoring structure 700 may be directly mounted in the mounting through hole. In other embodiments, the connection portion may also be other fixed connection structures such as an adhesive structure. The positioning member 600 and the first anchoring structure 700 are simultaneously pre-buried in the pier or bridge and installed in advance without affecting the subsequent installation of the first support plate 100.

[0039] The shape of the positioning member 600 is not limited in the embodiment of the present application. The positioning member 600 may be in an X shape. Figure 4 As shown, the first anchoring structures 700 are respectively located at the four ends of the positioning member 600. The positions of the four first anchoring structures 700 are controlled simultaneously by moving the positioning member 600. In some preferred embodiments, the positioning member 600 is a ring structure. Figure 3 , Figure 5 and Figure 6 As shown. The structure of the annular structure is stable and not easy to deform, and a plurality of connecting parts can be provided on the annular structure. In addition, the positioning member 600 is an annular structure, and the positioning member 600 encloses and forms an annular cavity, in which the first support plate 100 directly contacts the pier, which is conducive to improving the connection stability between the first support plate 100 and the pier.

[0040] The support body 200 includes multiple layers of elastic material layers 210 and multiple layers of support plates 220, wherein the elastic material layers 210 and the support plates 220 are arranged overlapping in sequence. In some embodiments, the elastic material layers 210 and the support plates 220 are vulcanized or bonded together to form a core component for the support to bear, displace, and rotate. The elastic material layer 210 can be made of a polymer composite material, such as a high-damping rubber material, a natural rubber material, a synthetic rubber material, and other composite high-elastic materials. The support plate 220 can be directly made of a structural member with a relatively high hardness, such as a steel plate. The cross-section of the support body 200 can be square, refer to Figure 3As shown, it can also be circular, refer to Figure 4 shown.

[0041] The surface of the support plate 220 is provided with a plurality of support protrusions 221, and the elastic material layer 210 has a clamping groove that cooperates with the support protrusions 221. This increases the contact area between the support plate 220 and the elastic material layer 210, and enhances the horizontal shear resistance of the support body 200. At the same time, the plurality of support protrusions 221 simultaneously support the elastic material layer 210, which can suppress the bulging phenomenon of the support body 200 after being subjected to pressure.

[0042] For further reference, Figure 7 As shown, the support protrusion 221 is an annular structure, and multiple annular structures are coaxially arranged, and along the radial direction of the support, the annular structure located on the outside is flush with the outer wall surface of the support plate 220. The support protrusion 221 is located on the outside of the support body 200, which can protect the elastic material layer 210 and reduce the impact of external environmental factors on the elastic material layer 210.

[0043] In other embodiments, reference Figure 8 As shown, the support protrusion 221 is a dot-shaped structure, and a plurality of support protrusions 221 are evenly distributed on the surface of the support plate 220. In the radial direction of the support, there is a reserved gap between the support protrusion 221 located on the outside and the outer side wall of the support plate 220, and the elastic material layer 210 is filled into the reserved gap. The elastic material layer 210 is located on the outside of the support body 200, so that the outer side of the elastic material layer 210 can maintain the integrity of the structure as a whole, thereby improving the overall structural stability of the support body 200.

[0044] The bearing provided in the embodiment of the present application can be used in a bridge structure. In some preferred embodiments, the bearing can be an LNR natural rubber bearing, an HDR (I) type high damping seismic isolation rubber bearing, an HDR (II) type high damping seismic isolation rubber bearing, a composite rubber bearing, etc.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A horizontal force dispersion type seismic isolation rubber bearing, characterized in that: It comprises a first support plate (100), a support body (200) and a second support plate (300) which are arranged in sequence and overlap each other, the support body (200) being fixed between the first support plate (100) and the second support plate (300), one of the first support plate (100) and the second support plate (300) being used to connect to a beam body, and the other being used to connect to a pier; The first support plate (100) is provided with an adjustment hole (110), and the support further comprises a connecting piece (400) and a limiting piece (500); the connecting piece (400) passes through the adjustment hole (110) and is connected to a first anchoring structure (700) in the beam body or the pier; the radial dimension of the adjustment hole (110) is greater than the radial dimension of the connecting piece (400); the limiting piece (500) is connected between the connecting piece (400) and the first support plate (100) and is used to fix the connecting piece (400) to the first support plate (100).

2. The horizontal force dispersing seismic isolation rubber bearing according to claim 1, characterized in that: The limiting member (500) is fixed to the connecting member (400), and the limiting member (500) is located on a surface of the first support plate (100) close to the support body (200), a portion of the limiting member (500) covers the adjustment hole (110), and a portion of the limiting member (500) is pressed against the surface of the first support plate (100).

3. The horizontal force dispersing seismic isolation rubber bearing according to claim 2, characterized in that: The length of the limiting member (500) is greater than the radial dimension of the adjusting hole (110), both ends of the limiting member (500) in the length direction are pressed against the surface of the first support plate (100), and the extension line of the limiting member (500) in the length direction avoids the support body (200).

4. The horizontal force dispersing seismic isolation rubber bearing according to claim 2, characterized in that: The thickness of the limiting member (500) is greater than the thickness of the first support plate (100).

5. The horizontal force dispersing seismic isolation rubber bearing according to claim 1, characterized in that: The first support plate (100) is provided with a plurality of adjustment holes (110), the plurality of adjustment holes (110) are arranged around the support body (200), and the adjustment holes (110) are arranged in one-to-one correspondence with the first anchoring structure (700) in the beam body or the pier; The support further comprises a positioning member (600), wherein the positioning member (600) is located on a side of the first support plate (100) away from the support body (200), the positioning member (600) has a plurality of connecting portions, the connecting portions correspond one-to-one with the first anchoring structures (700), and the first anchoring structures (700) are fixed to the corresponding connecting portions.

6. The horizontal force dispersing seismic isolation rubber bearing according to claim 5, characterized in that: The positioning member (600) is an annular structure.

7. The horizontal force dispersing seismic isolation rubber bearing according to claim 1, characterized in that: The support body (200) comprises a plurality of elastic material layers (210) and a plurality of support plates (220), wherein the elastic material layers (210) and the support plates (220) are arranged overlappingly in sequence, the surface of the support plates (220) has a plurality of support protrusions (221), and the elastic material layers (210) have snap-fitting grooves that cooperate with the support protrusions (221).

8. The horizontal force dispersing seismic isolation rubber bearing according to claim 7, characterized in that: The support protrusion (221) is an annular structure, a plurality of the annular structures are coaxially arranged, and along the radial direction of the support, the support protrusion (221) located in the outer layer is arranged flush with the outer wall surface of the support plate (220).

9. The horizontal force dispersing seismic isolation rubber bearing according to claim 7, characterized in that: The supporting protrusions (221) are point-shaped structures, and a plurality of the supporting protrusions (221) are evenly distributed on the surface of the supporting plate (220).

10. The horizontal force dispersing seismic isolation rubber bearing according to claim 9, characterized in that: In the radial direction of the support, a reserved gap is provided between the support protrusion (221) located on the outside and the outer side wall of the support plate (220), and the elastic material layer (210) is filled into the reserved gap.

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