CN209276981U - A kind of compressed spring shock mount - Google Patents

Abstract

The utility model discloses a compression spring damping support, which comprises an upper connecting plate, a lower connecting plate located under the upper connecting plate, an upper sealing plate connected to the bottom surface of the upper connecting plate, and a top sealing plate connected to the top of the lower connecting plate. The lower sealing plate on the surface, the protective layer arranged between the upper sealing plate and the lower sealing plate, the hydraulic damper arranged in the protective layer, and the compression valves respectively connected to the upper connecting plate and the lower connecting plate Spring; the top surface of the upper connecting plate is connected to the deck of the bridge, the bottom surface of the lower connecting plate is connected to the pier of the bridge; the two ends of the hydraulic damper are respectively connected to the upper sealing plate and the lower sealing plate The compression spring is installed on at least one side of the upper connecting plate and the lower connecting plate, and its two ends are respectively connected with the upper connecting plate and the lower connecting plate. In the utility model, a high-strength compression spring and a hydraulic damper are added between the upper and lower connecting plates, so that the negative stiffness and restoring force of the support are stronger, and the kinetic energy and potential energy generated by the bridge are effectively consumed.

Description

A compression spring shock absorber

technical field

The utility model relates to the technical field of bridge supports, in particular to a compression spring damping support.

Background technique

The bridge bearing is used as the supporting structure connecting the bridge deck and the bridge piers, abutments, etc. to transfer the load of the bridge. In recent years, frequent earthquake disasters have caused serious damage to buildings, bridges and other structures. Various vibration-absorbing and isolating bearings, including rubber bearings, have gradually been widely used in the design of bridge structures, for example, laminated rubber bearings, etc.

At present, the common plate rubber bearing is widely used in the engineering field. The plate rubber bearing is a new type of bridge bearing. It has the advantages of simple structure, easy processing and manufacturing, less sodium, low cost, and convenient installation. However, because the consolidation of rubber and reinforced steel plates is often prone to shear failure, it will limit the free expansion and contraction of the upper structure, and will cause additional stress on the upper and lower structures, which will affect the shock absorption effect. In addition, ordinary plate rubber bearings have disadvantages such as low friction and poor durability.

High-strength compression springs are generally coiled with equal pitches of metal wires and have a fixed wire diameter. There is a certain gap between the coils of the compression spring. When the spring is subjected to an external load, the spring shrinks and deforms to store deformation energy. Using multiple open coils to provide resistance to external pressure, it can be used to resist pressure and store energy according to different fields, and is widely used in various mobile devices.

Utility model content

In view of this, the embodiment of the utility model provides a compression spring damping support. By adding a high-strength compression spring and a hydraulic damper between the upper and lower connecting plates, the negative stiffness and restoring force of the support are stronger, Effectively consume the kinetic energy and potential energy generated by the bridge.

In order to achieve the above purpose, the utility model adopts a technical solution: a compression spring damping support, which is arranged between the bridge deck and the pier of the bridge, including an upper connecting plate, a lower connecting plate located under the upper connecting plate The connecting plate, the upper sealing plate connected to the bottom surface of the upper connecting plate, the lower sealing plate connected to the top surface of the lower connecting plate, the protective layer arranged between the upper sealing plate and the lower sealing plate, and the The hydraulic damper in the protective layer, the compression spring connected with the upper connecting plate and the lower connecting plate;

The top surface of the upper connecting plate is connected to the deck of the bridge, and the bottom surface of the lower connecting plate is connected to the pier of the bridge;

Both ends of the hydraulic damper are respectively connected to the upper sealing plate and the lower sealing plate;

The compression spring is installed on at least one side of the upper connecting plate and the lower connecting plate, and its two ends are respectively connected with the upper connecting plate and the lower connecting plate.

Further, the upper connecting plate and the lower connecting plate are each provided with several first through holes, and the first through holes are arranged on the peripheral edges of the upper connecting plate and the lower connecting plate.

Further, both ends of the compression spring are respectively connected to the upper connecting plate and the lower connecting plate through a first fastener based on the first through hole.

Further, the surface of the hydraulic damper is also provided with a damping plate.

Further, the upper sealing plate and the lower sealing plate are provided with several second through holes, and both ends of the hydraulic damper are provided with several third through holes.

Further, both ends of the hydraulic damper are respectively connected to the upper sealing plate and the lower sealing plate through second fasteners based on the second through hole and the third through hole.

Further, the second fastener is a fixing bolt.

Further, the upper connecting plate and the lower connecting plate are provided with several fourth through holes, and the fourth through holes are arranged at the four corners of the upper connecting plate and the lower connecting plate.

Further, the upper connecting plate is connected to the bridge deck of the bridge through a third fastener based on the fourth through hole; the lower connecting plate is connected to the pier of the bridge through a fourth fastener based on the fourth through hole connect.

Further, both the third fastener and the fourth fastener are anchor bolts.

The beneficial effects brought by the technical solution provided by the embodiment of the utility model are: (1) the upper and lower steel plates are connected with high-strength compression springs, and as the negative stiffness member of the support, the lateral direction of the support is constrained by the high compression spring. deformation, so as to improve the negative stiffness of the bearing, and the content of the rubber layer can be increased when the height and weight of the bearing are determined, which has a significant effect on improving the shear deformation capacity of the bearing. The high-strength compression spring net makes full use of the high tensile properties of the steel and can further reduce the weight of the support; (2) The hydraulic damper assists the high-strength compression spring to effectively consume the kinetic energy and potential energy generated by the bridge to reduce damage to the bridge ; (3) During an earthquake, due to the larger shear deformation capacity of the support, the area enclosed by the hysteretic curve of the support increases, and the corresponding energy dissipation capacity is significantly improved.

Description of drawings

Fig. 1 is the structural diagram of compression spring damping bearing of the present utility model;

Fig. 2 is the cross-sectional view of the compression spring damping bearing of the present utility model;

Fig. 3 is the structural diagram of the hydraulic damper of the compression spring damping bearing of the present utility model;

Figure 4 is a schematic diagram of the positional relationship between the bridge and the shock-absorbing bearing.

In the figure: 1-upper connecting plate, 2-upper sealing plate, 3-hydraulic damper, 4-protective layer, 5-compression spring, 6-lower sealing plate, 7-lower connecting plate, 8-first through hole, 9-Second through hole, 10-First fastener, 11-Second fastener, 12-Third fastener, 13-Fourth fastener, 14-Deck, 15-Pier, 16- Bearing, 17-the third through hole, 18-the fourth through hole, 19-damping plate.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the following will further describe the implementation of the utility model in conjunction with the accompanying drawings.

As shown in Figures 1-2, Figure 1 is an overall structural diagram, and Figure 2 is a cross-sectional view. The embodiment of the utility model discloses a compression spring damping support (see support 16 in Figure 4), which is arranged on the bridge Between the bridge deck 14 and the pier 15, it includes an upper connecting plate 1, an upper sealing plate 2, a hydraulic damper 3, a protective layer 4, a compression spring 5, a lower sealing plate 6 and a lower connecting plate 7. The lower connecting plate 7 is located under the upper connecting plate 1, the upper sealing plate 2 is connected to the bottom surface of the upper connecting plate 1, the lower sealing plate 6 is connected to the top surface of the lower connecting plate 7, and the protection The layer 4 is set between the upper sealing plate 2 and the lower sealing plate 6, the hydraulic damper 3 is set in the protective layer 4, and the two ends of the compression spring 5 are connected with the upper connecting plate 1 and the lower connecting plate 1 respectively. Connecting plate 7 is connected.

Both the upper connecting plate 1 and the lower connecting plate 7 are provided with a plurality of first through holes 8, and the two ends of the compression spring 5 are respectively connected to the said first through holes 8 through the first fasteners 10. The upper connecting plate 1 and the lower connecting plate 7 are connected. Preferably, the first through holes 8 are provided on the peripheral edges of the upper connecting plate 1 and the lower connecting plate 7 . Preferably, the first fastener 10 is a rivet.

As shown in Figure 3, the upper sealing plate 2 and the lower sealing plate 6 are provided with several second through holes 9, and the two ends of the hydraulic damper 3 are provided with several third through holes 17, Both ends of the hydraulic damper 3 are respectively connected to the upper sealing plate 2 and the lower sealing plate 6 through the second fastener 11 based on the second through hole 9 and the third through hole 17 . Preferably, the second through hole 9 is arranged at the center of the upper sealing plate 2 and the lower sealing plate 6 . Preferably, the second fastener 11 is a fixing bolt. Preferably, both the second through hole 9 and the third through hole 17 are screw holes. A damping plate 19 is also provided on the surface of the hydraulic damper 3 . Preferably, the damping plate 19 is a rubber plate.

The upper sealing plate 2 is closely attached to the bottom surface of the upper connecting plate 1, the lower sealing plate 6 is closely attached to the top surface of the lower connecting plate 7, and the top surface of the upper connecting plate 1 is in contact with the bridge of the bridge. The surface 14 is connected, and the bottom surface of the lower connecting plate 7 is connected with the pier 15 of the bridge. Several fourth through holes 18 are provided on the upper connecting plate 1 and the lower connecting plate 7, and the upper connecting plate 1 is connected to the bridge deck 14 of the bridge through the third fastener 12 based on the fourth through holes 18. The lower connecting plate 7 is connected to the pier 15 of the bridge through the fourth fastener 13 based on the fourth through hole 18 . Preferably, the fourth through hole 18 is provided at the four corners of the upper connecting plate 1 and the lower connecting plate 7 . Preferably, both the third fastener 12 and the fourth fastener 13 are anchor bolts. Preferably, the fourth through hole 18 is a screw hole.

The shapes of the upper connecting plate 1, the upper sealing plate 2, the protective layer 4, the lower sealing plate 6, and the lower connecting plate 7 include but are not limited to: cuboid, cube, cylinder, prism, etc. Adjustment and selection are required. Preferably, the shapes of the upper connecting plate 1 and the lower connecting plate 7 are both cuboid. Preferably, the shapes of the upper sealing plate 2 , the protective layer 4 and the lower sealing plate 6 are all cylinders. The compression spring 5 is mounted on at least one of the four sides of the upper connecting plate 1 and the lower connecting plate 7 (only the compression springs 5 on both sides are shown in Figure 1-2 as an example).

The diameter, length, etc. of the compression springs 5 can be adjusted and selected according to actual needs, and the quantity of the compression springs 5 (taking 10 as an example in Fig. 1) and the installation distance between each compression spring 5 can be adjusted according to the force The situation is adjusted. Preferably, the compression spring 5 is a high-strength compression spring.

Preferably, the upper connecting plate 1 and the lower connecting plate 7 are made of steel. Preferably, the material of the protective layer 4 is rubber.

In the utility model, high-strength compression springs are added to the sides of the upper and lower connecting plates, and a hydraulic damper is added to the center, so that the negative stiffness and restoring force of the support are stronger, and the increased shear deformation capacity is also conducive to further increasing the support. The hysteretic energy consumption capacity of the seat can effectively consume the kinetic energy and potential energy generated by the bridge, so as to reduce the damage to the bridge.

The beneficial effects brought by the technical solution provided by the embodiment of the utility model are: (1) the upper and lower steel plates are connected with high-strength compression springs, and as the negative stiffness member of the support, the lateral direction of the support is constrained by the high compression spring. deformation, so as to improve the negative stiffness of the bearing, and the content of the rubber layer can be increased when the height and weight of the bearing are determined, which has a significant effect on improving the shear deformation capacity of the bearing. The high-strength compression spring net makes full use of the high tensile properties of the steel and can further reduce the weight of the support; (2) The hydraulic damper assists the high-strength compression spring to effectively consume the kinetic energy and potential energy generated by the bridge to reduce damage to the bridge ; (3) During an earthquake, due to the larger shear deformation capacity of the support, the area enclosed by the hysteretic curve of the support increases, and the corresponding energy dissipation capacity is significantly improved.

It is worth noting that: in the description of the present utility model, "several" means one or more than one, unless otherwise specifically defined. In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. The connection, or integral connection, may be a mechanical connection, and those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In this article, the orientation words such as front, rear, upper, and lower involved are defined by the parts in the drawings and the positions between the parts in the drawings, just for the clarity and convenience of expressing the technical solution. It should be understood that the use of the location words should not limit the scope of protection claimed in this application.

In the case of no conflict, the above-mentioned embodiments and features in the embodiments herein may be combined with each other.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

1. a kind of compressed spring shock mount, is set between the bridge floor of bridge and bridge pier, it is characterised in that: including upper connection Plate, the lower connecting plate under the upper junction plate, the upper sealing plate for being connected to the upper junction plate bottom surface, be connected to it is described under Connect the lower sealing plate of the plate top surface, protective layer between the upper sealing plate and lower sealing plate, hydraulic in the protective layer Damper, the compressed spring being all connected with the upper junction plate and lower connecting plate；

The top surface of the upper junction plate and the bridge floor of bridge connect, and the bottom surface of the lower connecting plate and the bridge pier of bridge connect；

The both ends of the hydraulic damper are connect with the upper sealing plate and lower sealing plate respectively；

The compressed spring is installed at least one side of the upper junction plate and lower connecting plate, both ends respectively with it is described on Connecting plate is connected with lower connecting plate.

2. compressed spring shock mount according to claim 1, it is characterised in that: on the upper junction plate and lower connecting plate Several first through hole are equipped with, the first through hole is set to the edge of the upper junction plate and lower connecting plate.

3. compressed spring shock mount according to claim 2, it is characterised in that: the both ends of the compressed spring are based on institute First through hole is stated to connect with the upper junction plate and lower connecting plate respectively by the first fastener.

4. compressed spring shock mount according to claim 1, it is characterised in that: the surface of the hydraulic damper is also set There is damping sheet.

5. compressed spring shock mount according to claim 1, it is characterised in that: be all provided on the upper sealing plate and lower sealing plate There are several the second through-holes, is equipped with several third through-holes on the both ends of the hydraulic damper.

6. compressed spring shock mount according to claim 5, it is characterised in that: the both ends of the hydraulic damper are based on Second through-hole and third through-hole are connect with the upper sealing plate and lower sealing plate respectively by the second fastener.

7. compressed spring shock mount according to claim 6, it is characterised in that: second fastener is fixed spiral shell Bolt.

8. compressed spring shock mount according to claim 1, it is characterised in that: on the upper junction plate and lower connecting plate Several fourth holes are equipped with, the fourth hole is set to four round angles of the upper junction plate and lower connecting plate.

9. compressed spring shock mount according to claim 8, it is characterised in that: the upper junction plate is based on the described 4th Through-hole is connected by the bridge floor of third fastener and bridge；The lower connecting plate is based on the fourth hole and passes through the 4th fastener It is connect with the bridge pier of bridge.

10. compressed spring shock mount according to claim 9, it is characterised in that: the third fastener and the 4th is tightly Firmware is anchor bolt.