Combined type anti-seismic stop block

Abstract

According to the combined type anti-seismic check block, a steel corbel is arranged below a top plate, and groove plates are fixedly arranged on the two sides of the upper end of the steel corbel; the bump is arranged at the lower end of the top plate; the first energy absorption assemblies are arranged on the two sides of the protruding block. The support is arranged at the groove bottom of the groove plate and hinged to the small-diameter section, and the bottom of the support is fixedly connected with the groove plate. The second energy absorption assembly is arranged on the outer side of the steel corbel. The combined design of the top plate, the steel corbels, the groove plates and the protruding blocks effectively disperses and absorbs energy generated by earthquakes. The structural design of the convex blocks prevents slippage and non-uniform stress caused by earthquakes. The top plate is horizontally arranged, and the steel corbels are arranged at intervals, so that local stress concentration of the whole structure is reduced. The hinge structure of the support allows relative movement of the lug within a certain range. The first energy absorption assembly and the second energy absorption assembly are arranged to effectively absorb and buffer vibration energy under the action of vibration loads, impact on the structure is reduced, and the overall energy absorption capacity is further enhanced.

Description

Technical Field

[0001] This application relates to the technical field of bridge seismic resistance, and particularly relates to a combined seismic isolation block. Background Art

[0002] Earthquakes are a common natural phenomenon. Firstly, they pose a great threat to the lives and property safety of the people. Secondly, earthquakes will cause serious damage to the infrastructure within the vicinity of the epicenter. Among these, bridges, as the hub part of the transportation network, bear the brunt. Bridges are important nodes and hubs of the transportation lifeline.

[0003] The main forms of damage to bridge structures caused by earthquakes are as follows:

[0004] 1. The phenomenon of beam falling due to the failure of support connection or excessive displacement of the upper beam body, etc., and most of them occur in the longitudinal direction of the bridge;

[0005] 2. Local damage caused by the collision of the beam body at the expansion joint;

[0006] 3. The shedding of movable bearings, the displacement of bearings or the damage to the structure of the bearings themselves;

[0007] 4. The bending and shear failure of pier columns, the inclined sliding of abutments, and the collision damage between the abutment body and the upper structure;

[0008] 5. The seismic damage of pile foundations caused by foundation failure and the shear and bending failure of pile foundations caused by the inertial force transmitted from the upper structure.

[0009] To limit the large lateral displacement of the upper beam body of the bridge, reinforced concrete isolation blocks are often installed on both sides of the top of the pier cap beam. However, after the bridge is shaken by an earthquake, a huge impact force will be generated. The collision between the ordinary reinforced concrete isolation block and the beam body is a rigid collision, which is likely to cause local damage. Moreover, due to the insufficient structural stress performance, the lateral isolation block is prone to irreparable damage and cannot well limit the displacement of the beam body. Utility Model Content

[0010] The embodiments of this application provide a combined seismic isolation block, aiming to avoid the displacement of the beam body while ensuring the integrity of its own structure.

[0011] To achieve the above object, this application provides the following technical solutions:

[0012] A combined seismic isolation block, characterized in that it includes a top plate, a steel corbel, a channel plate, a convex block, a first energy absorption component, a bearing, and a second energy absorption component;

[0013] The top plate is placed horizontally, and an arch foot bottom plate is fixedly connected to its upper end;

[0014] The steel corbels are arranged at intervals below the top plate. The trough plate with the notch facing upward is fixedly arranged at the upper end of the steel corbel. The lower end of the steel corbel is fixedly connected to an external foundation.

[0015] The convex block is arranged at the lower end of the top plate. Its large-diameter section is fixedly connected to the bottom surface of the top plate. Its small-diameter section extends into the trough cavity of the trough plate. And the bottom end face of the large-diameter section abuts against the notch end face of the trough plate.

[0016] The first energy-absorbing component is arranged on both sides of the small-diameter section of the convex block. One end of it is fixedly connected to the side surface of the small-diameter section, and the other end is fixedly connected to the inner wall of the trough plate.

[0017] Two of the supports are symmetrically arranged vertically at the bottom of the trough of the trough plate. The top of the support is hinged to the bottom of the small-diameter section, and its bottom is fixedly connected to the bottom of the trough of the trough plate.

[0018] The second energy-absorbing component is fixedly arranged on the outside of the steel corbel.

[0019] Furthermore, reinforcing ribs are arranged inside the convex block. One end of the reinforcing rib is fixedly connected to the top of the large-diameter section, and the other end is fixedly connected to the stress-weak part between the large-diameter section and the small-diameter section.

[0020] Furthermore, the first energy-absorbing component includes a first spring, a first diagonal brace, a spring seat, and a limit block.

[0021] The first springs are symmetrically arranged on both sides of the small-diameter section. Its inner end is fixedly connected to the side surface of the small-diameter section, and its outer end is fixedly connected to the inner wall of the trough plate.

[0022] The first diagonal braces are symmetrically arranged along the axis of the first spring. The length direction of the first diagonal brace forms an angle with the axial length direction of the first spring. The inner end of the first diagonal brace is hinged to the side surface of the small-diameter section, and its outer end is fixedly connected to the inner wall of the trough plate.

[0023] The spring seat is arranged on the outer side surface of the small-diameter section, and the spring seat surrounds the periphery of the first spring.

[0024] The limit block is arranged in the middle of the spring seat, and the peripheral surface of the limit block is slidably connected to the inner side surface of the first spring.

[0025] Furthermore, the second energy-absorbing component includes a cushion block and energy-absorbing nails.

[0026] The cushion block is arranged on the outside of the steel corbel and is fixedly connected to the corresponding side surface of the steel corbel.

[0027] A plurality of the energy-absorbing nails are uniformly arranged on a side surface of the cushion block away from the steel bracket and are fixedly connected to the cushion block.

[0028] Further, a support plate is further included; the two support plates are respectively symmetrically arranged vertically on the outer sides of the support, one end of which is hinged to the top of the steel bracket, and the other end of which is arranged at an interval from the bottom of the small-diameter section. A second spring is arranged on the outer side of the support plate, one end of the second spring is fixedly connected to the support plate, and the other end of the second spring is fixedly connected to the inner wall of the groove plate.

[0029] Further, a second diagonal brace is arranged inside the support, one end of the second diagonal brace is fixedly connected to the inner side surface of the support, and the other end of the second diagonal brace is fixedly connected to the bottom of the groove of the groove plate.

[0030] Further, a connecting block is fixedly arranged between the second spring and the groove plate.

[0031] One or more technical solutions provided in the embodiments of the present invention at least have the following technical effects:

[0032] In this application, the combined design of the top plate, the steel bracket, the groove plate and the convex block effectively disperses and absorbs the energy generated by the earthquake, improving the overall reliability of the seismic block. The structural design of the convex block prevents the slip and uneven stress caused by the earthquake. The horizontal placement of the top plate and the spaced arrangement of the steel brackets help to achieve uniform stress and reduce local stress concentration. The large-diameter section of the convex block abuts against the notch end face of the groove plate, effectively restricting the movement of the convex block and further improving the stability and seismic resistance of the block. At the same time, the fixed connection and hinged structure between the support and the groove plate reduce the displacement and improve the overall stability of the block. The hinged structure of the support allows a certain range of relative movement, thereby effectively reducing the action of seismic force on the structure and enhancing the seismic performance of the structure. The arrangement of the first energy-absorbing component and the second energy-absorbing component effectively absorbs and buffers the vibration energy under the action of the vibration load, reduces the impact on the structure, and further enhances the overall energy absorption capacity. Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments of the present invention or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0034] Figure 1 It is a schematic structural diagram provided by the embodiments of the present application;

[0035] Figure 2 For Figure 1Schematic diagram of the locally enlarged structure of area A

[0036] Icons: 1 - arch springing soleplate; 10 - top plate; 20 - steel corbel; 30 - trough plate; 40 - bump; 41 - large diameter section; 42 - small diameter section; 43 - reinforcing rib; 50 - first spring; 51 - first diagonal brace; 52 - spring seat; 53 - limit block; 60 - spacer block; 61 - energy - absorbing nail; 70 - support; 71 - second diagonal brace; 72 - support plate; 73 - second spring; 74 - connecting block Detailed implementation manner

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention

[0038] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. The terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances

[0039] As Figure 1 and Figure 2As shown in the figure, a combined seismic block includes a top plate 10, a steel bracket 20, a channel plate 30, a convex block 40, a first energy absorption component, a support 70, and a second energy absorption component; the top plate 10 is horizontally placed, and an arch springing bottom plate 1 is fixedly connected to its upper end; the steel brackets 20 are arranged at intervals below the top plate 10, and the channel plate 30 with the notch facing upward is fixedly arranged at the upper end of the steel brackets 20, and the lower ends of the steel brackets 20 are fixedly connected to an external foundation; the convex block 40 is arranged at the lower end of the top plate 10, its large-diameter section 41 is fixedly connected to the bottom surface of the top plate 10, its small-diameter section 42 extends into the cavity of the channel plate 30, and the bottom end surface of the large-diameter section 41 abuts against the notch end surface of the channel plate 30; the first energy absorption component is arranged on both sides of the small-diameter section 42 of the convex block 40, one end of it is fixedly connected to the side surface of the small-diameter section 42, and the other end of it is fixedly connected to the inner wall of the channel plate 30; two supports 70 are symmetrically and vertically arranged at the bottom of the cavity of the channel plate 30, the top of the support 70 is hinged to the bottom of the small-diameter section 42, and its bottom is fixedly connected to the bottom of the cavity of the channel plate 30; the second energy absorption component is fixedly arranged on the outside of the steel bracket 20.

[0040] In the above solution, the combined design of the top plate 10, the steel bracket 20, the channel plate 30, and the convex block 40 enables the seismic block to effectively disperse and absorb the energy generated by an earthquake. The horizontal placement of the top plate 10 and the spaced arrangement of the steel brackets 20 can help to evenly distribute the force and reduce the local stress concentration of the structure. The small-diameter section 42 of the convex block 40 extends into the cavity of the channel plate 30, effectively preventing slippage or uneven force caused by an earthquake, thereby improving the reliability of the overall structure. The large-diameter section 41 of the convex block 40 abuts against the notch end surface of the channel plate 30 to limit the movement of the convex block, thereby improving the stability and seismic resistance of the block. The support 70 is fixedly connected to the bottom of the cavity of the channel plate 30 and is hinged to the bottom of the small-diameter section 42, which can improve the stability of the structure and reduce excessive displacement during an earthquake. Through the hinged structure of the support 70, a certain range of relative movement can be allowed to a certain extent, thereby effectively reducing the effect of seismic force on the structure. The first energy absorption component is arranged on both sides of the small-diameter section 42 of the convex block 40. By being fixedly connected to the side surface of the small-diameter section 42 and the inner wall of the channel plate 30, it can effectively absorb and buffer the vibration energy under the action of seismic load and reduce the impact on the structure. The second energy absorption component is arranged on the outside of the steel bracket 20, further enhancing the energy absorption capacity of the overall structure and helping to reduce the influence of seismic load on the structure.

[0041] Reinforcing ribs 43 are arranged inside the convex block 40, one end of the reinforcing rib 43 is fixedly connected to the top of the large-diameter section 41, and the other end of it is fixedly connected to the stress-weak part between the large-diameter section 41 and the small-diameter section 42.

[0042] In the above solution, the provision of the reinforcing rib 43 helps to increase the overall strength of the bump 40. By being fixedly connected to the top of the large-diameter section 41, the reinforcing rib can effectively disperse and transmit stress, reduce local stress concentration, and improve the overall load-bearing capacity of the structure. Moreover, the provision of the reinforcing rib can also reduce the fatigue and wear of the bump, thereby extending the service life of the bump 40.

[0043] The first energy-absorbing component includes a first spring 50, a first diagonal brace 51, a spring seat 52, and a limit block 53; the first spring 50 is symmetrically arranged on both sides of the small-diameter section 42, its inner end is fixedly connected to the side surface of the small-diameter section 42, and its outer end is fixedly connected to the inner wall of the groove plate 30; the first diagonal brace 51 is symmetrically arranged along the axis of the first spring 50, the length direction of the first diagonal brace 51 forms an angle with the axial length direction of the first spring 50, the inner end of the first diagonal brace 51 is hinged to the side surface of the small-diameter section 42, and its outer end is fixedly connected to the inner wall of the groove plate 30; the spring seat 52 is arranged on the outer side surface of the small-diameter section 42, and the spring seat 52 surrounds the periphery of the first spring 50; the limit block 53 is arranged in the middle of the spring seat 52, and the peripheral surface of the limit block 53 is slidably connected to the inner side surface of the first spring 50.

[0044] In the above solution, the symmetrical arrangement of the first spring 50 and its fixed connection with the small-diameter section 42 and the groove plate 30 effectively disperse the impact force and increase the overall energy-absorbing capacity. The provision of the first diagonal brace 51, by forming an angle with the first spring 50, further improves the stability of the overall structure. The hinged connection and fixation of the first diagonal brace 51 enhance the connection strength with the groove plate 30 and prevent displacement or deformation due to vibration. The spring seat 52 surrounds the periphery of the first spring 50, which can evenly distribute the load of the first spring 50, improve the load-bearing capacity of the first spring 50 and the overall stability of the structure. The sliding connection between the limit block 53 and the inner side surface of the first spring 50 can effectively control the movement range of the first spring 50 and prevent the first spring 50 from generating excessive displacement or deformation during operation.

[0045] The second energy-absorbing component includes a cushion block 60 and energy-absorbing nails 61; the cushion block 60 is arranged on the outer side of the steel bracket 20 and is fixedly connected to the corresponding side surface of the steel bracket 20; a plurality of energy-absorbing nails 61 are evenly arranged on the side surface of the cushion block 60 away from the steel bracket 20 and are fixedly connected to the cushion block 60.

[0046] In the above scheme, the combination of the pad 60 and the energy-absorbing nail 61 increases the energy-absorbing area of ​​the overall structure. The energy-absorbing nail 61 is evenly distributed on the side of the pad 60 away from the steel corbel 20, which can effectively disperse and absorb the impact energy. The uniform arrangement of multiple energy-absorbing nails 61 can ensure that the impact force is evenly dispersed on the surface of the pad 60, avoiding local damage that may be caused by concentrated impact. The arrangement of the pad 60 can provide lateral support for the steel corbel 20, ensuring the stability of the steel corbel 20 structure under stress. Through fixed connection, the pad 60 can effectively transmit and disperse force, preventing the steel corbel 20 from excessive deformation or displacement when subjected to stress. It is feasible that the pad 60 and the energy-absorbing nail 61 are fixedly connected by gluing or bonding. If the energy-absorbing nail 61 is worn or damaged during use, the damaged energy-absorbing nail 61 can be replaced separately, thereby simplifying the maintenance process while reducing maintenance costs.

[0047] The present application also includes a support plate 72; the two support plates 72 are symmetrically arranged vertically on the outside of the support 70, one end of which is hinged to the top of the steel corbel 20, and the other end is spaced apart from the bottom of the small diameter section 42, and a second spring 73 is arranged on the outside of the support plate 72, one end of the second spring 73 is fixedly connected to the support plate 72, and the other end of the second spring 73 is fixedly connected to the inner wall of the groove plate 30.

[0048] In the above scheme, the support plate 72 is vertically arranged and hinged with the steel corbel 20, providing additional stable support and reducing the displacement or deformation of the steel corbel 20 when subjected to force. The second spring 73 is arranged so that the support plate 72 can effectively absorb and buffer the impact force. The spring is connected between the support plate 72 and the slot plate 30 to help the support plate 72 and the slot plate 30 to disperse the impact energy. The combined design of the support plate 72 and the second spring 73 can automatically adjust according to the force conditions, provide dynamic support, and thus improve the responsiveness of the combined anti-seismic block in the present application to various impacts or load changes.

[0049] A second diagonal brace 71 is disposed on the inner side of the support 70 , one end of the second diagonal brace 71 is fixedly connected to the inner side surface of the support 70 , and the other end of the second diagonal brace 71 is fixedly connected to the groove bottom of the groove plate 30 .

[0050] In the above solution, the second diagonal brace 71 effectively increases the overall rigidity of the structure by connecting the inner side of the support 70 with the bottom of the groove of the groove plate 30, and the second diagonal brace 71 can effectively disperse and transmit the lateral and longitudinal forces acting on the support 70, reducing the risk of overturning or instability of the structure under stress. The oblique connection of the second diagonal brace 71 enhances the connection stability between the support 70 and the groove plate 30, making the overall structure more solid when subjected to external forces.

[0051] A connecting block 74 is fixedly arranged between the second spring 73 and the groove plate 30. The connecting block 74 fixes the installation position of the second spring 73, ensuring that the spring will not be displaced or loosened during use. And it makes the installation and disassembly of the second spring 73 more convenient.

[0052] The various embodiments in this specification are described in a progressive manner. For the same or similar parts between the various embodiments, reference can be made to each other. The key point of each embodiment is to illustrate the differences from other embodiments.

[0053] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting the present application; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. A combined seismic block, characterized in that, It includes a top plate (10), a steel corbel (20), a channel plate (30), a convex block (40), a first energy absorption component, a support (70) and a second energy absorption component; The top plate (10) is horizontally placed, and an arch springing bottom plate (1) is fixedly connected to its upper end; The steel corbels (20) are arranged at intervals below the top plate (10), and the channel plate (30) with the notch facing upwards is fixedly arranged at the upper ends of the steel corbels (20), and the lower ends of the steel corbels (20) are fixedly connected to an external foundation; The convex block (40) is arranged at the lower end of the top plate (10), its large-diameter section (41) is fixedly connected to the bottom surface of the top plate (10), its small-diameter section (42) extends towards the cavity of the channel plate (30), and the bottom end surface of the large-diameter section (41) abuts against the notch end surface of the channel plate (30); The first energy absorption component is arranged on both sides of the small-diameter section (42) of the convex block (40), one end of which is fixedly connected to the side surface of the small-diameter section (42), and the other end of which is fixedly connected to the inner wall of the channel plate (30); The two supports (70) are symmetrically and vertically arranged at the bottom of the channel of the channel plate (30), the top of the support (70) is hinged to the bottom of the small-diameter section (42), and its bottom is fixedly connected to the bottom of the channel of the channel plate (30); The second energy absorption component is fixedly arranged on the outside of the steel corbel (20).

2. The combined earthquake-resistant retaining block according to claim 1, wherein Reinforcing ribs (43) are arranged inside the convex block (40), one end of the reinforcing rib (43) is fixedly connected to the top of the large-diameter section (41), and the other end is fixedly connected to the stress weak part between the large-diameter section (41) and the small-diameter section (42).

3. The combined seismic block according to claim 1, characterized in that, The first energy absorption component includes a first spring (50), a first diagonal brace (51), a spring seat (52) and a limit block (53); The first springs (50) are symmetrically arranged on both sides of the small-diameter section (42), the inner ends of which are fixedly connected to the side surfaces of the small-diameter section (42), and the outer ends of which are fixedly connected to the inner wall of the channel plate (30); The first diagonal braces (51) are symmetrically arranged along the axis of the first spring (50), the length direction of the first diagonal brace (51) forms an angle with the axial length direction of the first spring (50), the inner end of the first diagonal brace (51) is hinged to the side surface of the small-diameter section (42), and its outer end is fixedly connected to the inner wall of the channel plate (30); The spring seat (52) is arranged on the outer side surface of the small-diameter section (42), and the spring seat (52) surrounds the periphery of the first spring (50); The limit block (53) is arranged in the middle of the spring seat (52), and the peripheral surface of the limit block (53) is slidably connected to the inner side surface of the first spring (50).

4. The combined earthquake-resistant retaining block according to claim 1, characterized in that, The second energy absorption component includes a cushion block (60) and energy absorption nails (61); The cushion block (60) is arranged on the outside of the steel corbel (20) and is fixedly connected to the corresponding side surface of the steel corbel (20); A plurality of the energy absorption nails (61) are uniformly arranged on the side surface of the cushion block (60) away from the steel corbel (20) and are fixedly connected to the cushion block (60).

5. The combined earthquake-resistant bumper block according to claim 1, characterized in that, It further includes a support plate (72); the two support plates (72) are respectively and symmetrically arranged vertically on the outer sides of the supports (70), one end of which is hinged to the top of the steel bracket (20), and the other end is arranged at an interval from the bottom of the small-diameter section (42). A second spring (73) is arranged on the outer side of the support plate (72), one end of the second spring (73) is fixedly connected to the support plate (72), and the other end is fixedly connected to the inner wall of the groove plate (30).

6. The combined seismic block according to claim 1, characterized in that, A second diagonal brace (71) is arranged inside the support (70), one end of the second diagonal brace (71) is fixedly connected to the inner side surface of the support (70), and the other end is fixedly connected to the bottom of the groove of the groove plate (30).

7. The combined seismic bumper according to claim 5, characterized in that, A connecting block (74) is fixedly arranged between the second spring (73) and the groove plate (30).

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