Horizontal limiting device of spring vibration isolation support

Abstract

The utility model provides a horizontal limiting device of a spring vibration isolation support, which comprises a buttress, a horizontal limiting device and a connecting piece, the buttress comprises an upper buttress and a lower buttress, the connecting piece is a steel pipe and comprises an upper steel pipe and a lower steel pipe, the horizontal limiting device comprises an upper gusset plate, a lower gusset plate and a gusset plate, one end of the upper gusset plate is fixed at the upper end of the lower steel pipe, and the other end of the upper gusset plate is fixed at the lower end of the lower steel pipe. One end of the lower gusset plate is fixed to the side face, facing the upper steel pipe, of the lower steel pipe, one end of the gusset plate is fixed to the lower end of the upper steel pipe, and the upper gusset plate, the lower gusset plate and the gusset plate are in through connection through pin shafts. The spring vibration isolator and the horizontal limiting device are compactly arranged, so that the system has the effects of vertical vibration isolation and reliable transmission of horizontal earthquake action at the same time, the comprehensive effect of vibration and earthquake double control can be achieved, meanwhile, the size of a vibration isolation layer buttress can be reduced, and the utilization rate of building space can be increased. The device is high in safety, convenient to construct and controllable in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration control and earthquake prevention and disaster reduction, in particular to a horizontal limit device of a spring vibration isolation support. Background Art

[0002] With the development of my country's industry, vibration control technology has become a key technology in industrial engineering. If the vibration of equipment is not properly controlled, it will affect the normal operation and yield rate of machinery and equipment, the normal measurement of instruments and meters, and the health of operators and nearby residents. In serious cases, it may even affect the service life and safe operation of industrial buildings. Vibration control technology has been successfully applied in large-scale rotary equipment, large-scale impact equipment, precision equipment and other fields. Vibration control products include steel spring bearings, rubber vibration damping pads, polyurethane vibration damping pads, etc. Vibration mainly occurs in the vertical direction or is determined by the type of excitation.

[0003] Engineering earthquake resistance technologies include structural earthquake resistance technology, shock absorption technology and seismic isolation technology. When earthquake action is transmitted to a building, it mainly occurs in the horizontal and vertical directions.

[0004] However, buildings such as subway buildings, airport high-speed rail transportation hubs, and concert halls have vibration sources such as subways and high-speed rails in their environments. Users are more sensitive to vibration and noise, and the seismic fortification requirements of construction projects are high. The excitation types of vibration and ground motion and the functions of vibration isolation (seismic) products are different, and a single vibration reduction technology or seismic technology is difficult to achieve the comprehensive effect of "dual control of vibration and seismic". Summary of the invention

[0005] In view of the above problems, the utility model provides a horizontal limit device for a spring vibration isolation support.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A horizontal limit device of a spring vibration isolation support comprises a pier, a horizontal limit device and a connecting piece, wherein the pier comprises an upper pier and a lower pier, the connecting piece is a steel pipe, comprising an upper steel pipe and a lower steel pipe, a spring vibration isolation support is installed between the upper and lower piers, the upper part of the upper steel pipe is inserted and fixed in the upper pier, and the lower part of the lower steel pipe is inserted and fixed in the lower pier.

[0008] The horizontal limit device includes an upper node plate, a lower node plate and a node plate, one end of the upper node plate is fixed to the end face of the upper end of the lower steel pipe, one end of the upper node plate extends toward one side of the upper steel pipe, one end of the lower node plate is fixed to the side of the lower steel pipe facing the upper steel pipe, one end of the node plate is fixed to the lower end face of the upper steel pipe, the other end of the node plate extends toward one side of the lower steel pipe, the node plate is located between the upper node plate and the lower node plate, and the upper node plate, the lower node plate and the node plate are connected by a pin shaft.

[0009] Furthermore, the lower steel pipe is provided with transverse stiffening ribs at corresponding positions inside the steel pipe at a portion connected to the lower node plate.

[0010] Furthermore, the node plate includes a movable part, which is arranged at one end close to the lower steel pipe, and the movable part is equipped with a joint bearing. Mounting holes are correspondingly arranged on the upper node plate and the lower node plate, and a pin is used to penetrate the mounting hole and the channel of the joint bearing to connect the upper node plate, the lower node plate and the node plate.

[0011] Furthermore, the upper steel pipe and the lower steel pipe are square pipes, and bolts are arranged around the parts of the upper steel pipe and the lower steel pipe inserted into the upper pier or the lower pier.

[0012] Furthermore, there are two upper steel pipes and one lower steel pipe, the lower steel pipe is located in the middle of the two upper steel pipes, the upper end face of the lower steel pipe is fixed to the middle of the lower surface of the lower node plate, the upper node plate is connected to the upper node plate through a supporting stiffening rib, the lower end face of the upper steel pipe is fixed to one end of the node plate, and the other end of the node plate extends toward the lower steel pipe, and the upper node plate, the lower node plate and the node plate are connected by a pin.

[0013] Furthermore, one end of the upper node plate and the lower node plate away from the lower steel pipe is an arc-shaped end, and one end of the node plate away from the upper steel pipe is also an arc-shaped end.

[0014] Furthermore, there are two spring vibration isolation supports, and the spring vibration isolation supports are spring vibration isolators.

[0015] Furthermore, the plate thickness of the supporting stiffening rib is the same as the wall thickness of the lower steel pipe, and the supporting stiffening rib is vertically aligned with the side walls on both sides of the lower steel pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The present invention arranges the spring vibration isolator and the horizontal limit device in a compact manner, so that the system has the effects of both vertical vibration isolation and reliable transmission of horizontal earthquake action, thus achieving the comprehensive effect of "dual control of vibration and seismicity", while reducing the size of the vibration isolation layer support pier and improving the utilization rate of building space. (2) The cost of the present device is low, and transverse stiffening ribs are arranged in the steel pipe to prevent the lower steel pipe support point from being damaged by pressure, prevent the steel pipe from being deformed, improve the supporting strength of the steel pipe, and ensure the safety and service life of the present device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the fixing structure of the spring vibration isolation support of the utility model;

[0018] Figure 2 This is a schematic diagram of the planar layout structure of the spring vibration isolation support and the horizontal limit device of Example 1 of the utility model;

[0019] Figure 3 This is a schematic elevational structural diagram of a horizontal limit device according to Embodiment 1 of the present utility model;

[0020] Figure 4 This is a schematic diagram of the planar layout structure of the spring vibration isolation support and the horizontal limit device of Example 2 of the utility model;

[0021] Figure 5 This is a schematic diagram of the elevation structure of the horizontal limit device of Example 2 of the utility model. DETAILED DESCRIPTION

[0022] In order to provide a further understanding of the purpose, structure, features and functions of the present invention, the present invention is described in detail below with reference to the embodiments. Example 1

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 A horizontal limit device of a spring vibration isolation support according to an embodiment of the utility model comprises a pier, a horizontal limit device and a connecting piece, wherein the pier comprises an upper pier 51 and a lower pier 52, and the outer sides of the upper and lower piers 51 and 51 are respectively fixed with an upper structure and a lower structure, wherein the upper structure comprises an upper structure column 31, an upper floor slab 41, and an upper structure beam 61; and the lower structure comprises a lower structure column 32, a lower floor slab 42, and a lower structure beam 62. The upper structure and the lower structure refer to conventional floors of a building connected to the vibration isolation layer, and the upper structure and the lower structure are connected by piers to ensure the transmission of the acting force.

[0024] The connecting member is a steel pipe, including an upper steel pipe 71 and a lower steel pipe 72. A spring vibration isolation support 1 is installed between the upper and lower piers 51 and 52. The spring vibration isolation support 1 plays the role of transmitting vertical load and vibration isolation. The upper part of the upper steel pipe 71 is inserted and fixed in the upper pier 51, and the lower part of the lower steel pipe 72 is inserted and fixed in the lower pier 52. The steel pipe effectively bears the horizontal load, which is conducive to the transmission of force. The weight of the steel pipe is light, which can reduce the weight of the device.

[0025] The horizontal limit device includes an upper node plate 91, a lower node plate 92 and a node plate 8. One end of the upper node plate 91 is fixed to the end face of the upper end of the lower steel pipe 72, one end of the upper node plate 91 extends toward one side of the upper steel pipe 71, one end of the lower node plate 92 is fixed on the side of the lower steel pipe 72 facing the upper steel pipe 71, one end of the node plate 8 is fixed to the lower end face of the upper steel pipe 71, the node plate 8 and the upper node plate 91 are fixed to the end of the steel pipe, the connection strength is high, and the end of the steel pipe can be sealed to isolate the air from entering the steel pipe to avoid the corrosion of the steel pipe. It is ensured that the device of the utility model has a long service life, and can also play a certain supporting role for the steel pipe, and improve the rigidity of the upper and lower steel pipes. The other end of the node plate 8 extends toward one side of the lower steel pipe 72, and the node plate 8 is located between the upper node plate 91 and the lower node plate 92. The upper node plate 91, the lower node plate 92 and the node plate 8 are connected by a pin 10. Through the connection of the horizontal limit device, it is ensured that the horizontal limit device transmits the horizontal load. When a horizontal earthquake occurs, the horizontal earthquake can be transmitted from the lower structure and the horizontal limit device to the upper structure. This device uses the spring vibration isolation support 1 and the horizontal limit device in combination, and connects them through a pin shaft to ensure that the horizontal limit device can undergo a certain vertical deformation, so that the horizontal limit device will not affect the work of the spring vibration isolation support 1. The two work independently and do not interfere with each other, so that the device has the effects of vertical vibration isolation and reliable transmission of horizontal earthquake effects at the same time, achieving the effect of "dual control of vibration and shock".

[0026] The lower steel pipe 72 is provided with transverse stiffening ribs 12 at corresponding positions in the steel pipe where it is connected to the lower node plate 92. The transverse stiffening ribs 12 improve the supporting strength of the steel pipe, prevent the lower steel pipe support point from being damaged by pressure, and ensure the stability of the steel pipe structure.

[0027] The node plate 8 includes a movable portion, which is arranged at one end close to the lower steel pipe 72. The movable portion is equipped with a joint bearing 11. Mounting holes are correspondingly arranged on the upper node plate 91 and the lower node plate 92. The upper node plate 91, the lower node plate 92 and the node plate 8 are connected by a pin 10 that passes through the mounting hole and the hole of the joint bearing 11. By using the joint bearing 11, when rigid or semi-rigid deformation occurs between the upper steel pipe 71 and the node plate 8, the joint bearing 11 can play a role in releasing the constraint. It is ensured that the node plate 8 and the upper and lower node plates can be flexibly deformed, so that the horizontal earthquake effect can be better transmitted, deformation damage can be prevented, and the service life of the device can be extended.

[0028] The upper steel pipe 71 and the lower steel pipe 72 are square pipes, which are convenient for fixing with the upper node plate 91, the lower node plate 92 and the node plate 8, and have a simple structure and are easy to implement. Bolts 13 are arranged around the parts of the upper steel pipe 71 and the lower steel pipe 72 inserted into the upper pier 51 or the lower pier 52 to strengthen the anchoring effect between the steel pipe and the pier concrete, so as to transmit the vertical shear force.

[0029] The ends of the upper node plate 91 and the lower node plate 92 away from the lower steel pipe are arc-shaped ends, and the end of the node plate 8 away from the upper steel pipe is also an arc-shaped end. The structure is beautiful, and it is more convenient to rotate the connection, preventing the ends of the upper and lower node plates and the node plate 8 from being blocked by obstacles, thereby affecting the effect of vibration dual control, and the arc design can reduce the stress concentration at the plate end, which helps to improve the safety of the structure.

[0030] There are two spring vibration isolation supports 1, and the spring vibration isolation supports 1 are spring vibration isolators. The spring vibration isolators are fixed by embedded parts 2. It is ensured that the device can be used in conjunction with a horizontal limit device with fewer spring vibration isolation supports 1 to achieve the effects of vertical vibration isolation and reliable transmission of horizontal earthquake effects, reduce the size of the vibration isolation layer piers, improve the utilization rate of the building space, and reduce the cost of the device.

[0031] The specific arrangement is that two spring vibration isolators 1 are arranged between the upper and lower piers, and the horizontal limit devices are arranged in two groups in the horizontal and vertical directions, and the types are the same. The upper and lower steel pipes 71 and 72 are inserted into the upper and lower piers, and bolts 13 are arranged around the parts of the steel pipes inserted into the piers to strengthen the anchoring effect between the steel pipes and the pier concrete, and can transmit vertical shear force. The node plate 8 is welded to the upper steel pipe 71, and the upper node plate 91 and the lower node plate 92 are welded to the lower steel pipe 72. The lower steel pipe 72 is provided with a transverse stiffening rib 12 at the corresponding position on the inner side of the part connected to the lower node plate 92 to prevent the support point of the lower steel pipe 72 from being damaged by pressure, and the node plate 8 and the upper node plate 91 have the function of isolating air from entering the steel pipe and preventing the steel pipe from being rusted. The node plate 8 is connected to the upper node plate 91 and the lower node plate 92 by a pin shaft, and a joint bearing is arranged around the movable part of the node plate 8 in the middle of the pin shaft. When rigid or semi-rigid deformation occurs between the upper steel pipe 71 and the node plate 8, the joint bearing can play a role in releasing the constraint. The height distance between the upper node plate 91 and the lower node plate 92 depends on the deformation of the spring isolator 1 during operation and is determined through design calculations so that the movement of the upper steel pipe and the node plate 8 is not affected by the upper node plate 91 and the lower node plate 92 .

[0032] When the building is in normal use, the spring isolator vibrates vertically, which plays the role of transmitting vertical load and vibration isolation. At the same time, the upper steel pipe together with the node plate 8 moves with the upper structure, and the horizontal limit device does not affect the vertical vibration isolation efficiency. When the building is subjected to horizontal earthquakes, interlayer deformation occurs in the upper and lower structures, and the horizontal earthquake action can be transmitted from the lower structure and the horizontal limit device to the upper structure. When the building is subjected to vertical vibration and earthquake at the same time, the spring isolator plays the role of transmitting vertical load and vibration isolation, and the upper and lower steel pipes and the horizontal limit device play the role of transmitting horizontal loads, and the two do not interfere with each other. Example 2

[0033] like Figure 4 and Figure 5 There are two upper steel pipes 71 and one lower steel pipe 72. The lower steel pipe 72 is located between the two upper steel pipes 71. The middle of the lower surface of the lower node plate 92 fixes the upper end face of the lower steel pipe 72. The upper end of the lower node plate 92 is connected to the upper node plate 91 through the supporting stiffening rib 14. The lower end face of the upper steel pipe 71 fixes one end of the node plate 8. The other end of the node plate 8 extends toward the lower steel pipe. The upper node plate 91, the lower node plate 92 and the node plate 8 are connected by a pin. It is suitable for situations where the horizontal earthquake effect is not large or the space for setting the vibration isolation pier is limited. The horizontal limit device is horizontally paralleled to improve safety redundancy.

[0034] The plate thickness of the supporting stiffening rib 14 is the same as the wall thickness of the lower steel pipe 72, and the supporting stiffening rib 14 is vertically aligned with the side walls of both sides of the lower steel pipe 72. At the same time, through the vertical arrangement of the supporting stiffening rib 14, when a pipeline needs to be arranged between the upper and lower piers, it can pass through the hole between the supporting stiffening ribs 14 or between the upper and lower piers, making the structural arrangement more compact, reducing the space height occupied by the pipeline, and further controlling the height of the vibration isolation layer, thereby bringing economic benefits.

[0035] The specific arrangement is that two spring isolators 1 are arranged between the upper and lower piers 51 and 52, and the horizontal limit device is arranged along a direction perpendicular to the arrangement of the spring isolators.

[0036] Two upper steel pipes 71 and one lower steel pipe 72 are horizontally connected in parallel, which has the effect of improving safety redundancy; the upper and lower steel pipes 71 and 72 are inserted into the upper and lower piers, and bolts 13 are arranged around the parts inserted into the piers to strengthen the anchoring effect between the steel pipes and the pier concrete, which can transmit vertical shear force.

[0037] The node plate 8 is welded to the upper steel pipe, the upper node plate 91, the lower node plate 92 and the supporting stiffening rib 14 are welded to each other, the upper and lower node plates and the supporting stiffening rib 14 are supported on the lower steel pipe 72, the thickness of the supporting stiffening rib 14 is consistent with the wall thickness of the lower steel pipe, and they are vertically aligned. The node plate 8 and the lower node plate 92 have the function of isolating air from entering the steel pipe and preventing the steel pipe from rusting. The node plate 8 is connected to the upper node plate 91 and the lower node plate 92 by a pin shaft, and a joint bearing is arranged on the movable part of the node plate 8. When rigid or semi-rigid deformation occurs between the upper steel pipe and the node plate 8, the joint bearing can release the constraint. The height distance between the upper node plate 91 and the lower node plate 92 depends on the deformation amount of the spring isolator when it is working, and the movement of the upper steel pipe and the node plate 8 should not be affected by the upper node plate 91 and the lower node plate 92.

[0038] When the building is in normal use, the spring isolator vibrates vertically, which plays the role of transmitting vertical loads and isolating vibrations. At the same time, the upper steel pipe together with the node plate 8 moves with the upper structure, and the horizontal limit device does not affect the vertical vibration isolation efficiency. When the building is subjected to horizontal earthquakes, interlayer deformation occurs in the upper and lower structures, and the horizontal earthquake effect can be transmitted from the lower structure and the horizontal limit device to the upper structure. When the building is subjected to vertical vibration and earthquake at the same time, the spring isolator plays the role of transmitting vertical loads and isolating vibrations, and the upper and lower steel pipes and the horizontal limit device play the role of transmitting horizontal loads, and the two do not interfere with each other.

[0039] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, any changes and modifications made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A horizontal limit device for a spring vibration isolation support, characterized in that: It includes a buttress, a horizontal limit device and a connecting piece, wherein the buttress includes an upper buttress and a lower buttress, and the connecting piece is a steel pipe, including an upper steel pipe and a lower steel pipe. A spring vibration isolation support is installed between the upper and lower buttresses, and the upper part of the upper steel pipe is inserted and fixed in the upper buttress, and the lower part of the lower steel pipe is inserted and fixed in the lower buttress; The horizontal limit device includes an upper node plate, a lower node plate and a node plate, one end of the upper node plate is fixed to the end face of the upper end of the lower steel pipe, one end of the upper node plate extends toward one side of the upper steel pipe, one end of the lower node plate is fixed to the side of the lower steel pipe facing the upper steel pipe, one end of the node plate is fixed to the lower end face of the upper steel pipe, the other end of the node plate extends toward one side of the lower steel pipe, the node plate is located between the upper node plate and the lower node plate, and the upper node plate, the lower node plate and the node plate are connected by a pin shaft.

2. The horizontal limit device of the spring vibration isolation support according to claim 1, characterized in that: The lower steel pipe is provided with transverse stiffening ribs at corresponding positions inside the steel pipe at the portion connected to the lower node plate.

3. The horizontal limit device of the spring vibration isolation support according to claim 1 is characterized in that: The node plate includes a movable part, which is arranged at one end close to the lower steel pipe, and a spherical bearing is installed on the movable part. Mounting holes are correspondingly arranged on the upper node plate and the lower node plate, and a pin is used to penetrate the mounting hole and the hole of the spherical bearing to connect the upper node plate, the lower node plate and the node plate.

4. The horizontal limit device of the spring vibration isolation support according to claim 1, characterized in that: The upper steel pipe and the lower steel pipe are square pipes, and bolts are arranged around the parts of the upper steel pipe and the lower steel pipe inserted into the upper pier or the lower pier.

5. The horizontal limit device of the spring vibration isolation support according to claim 1, characterized in that: There are two upper steel pipes and one lower steel pipe, the lower steel pipe is located in the middle of the two upper steel pipes, the upper end face of the lower steel pipe is fixed to the middle of the lower surface of the lower node plate, the upper node plate is connected to the upper node plate through a supporting stiffening rib, the lower end face of the upper steel pipe is fixed to one end of the node plate, and the other end of the node plate extends toward the lower steel pipe, and the upper node plate, the lower node plate and the node plate are connected by a pin.

6. The horizontal limit device of the spring vibration isolation support according to claim 1, characterized in that: One end of the upper node plate and the lower node plate away from the lower steel pipe is an arc-shaped end, and one end of the node plate away from the upper steel pipe is also an arc-shaped end.

7. The horizontal limit device of the spring vibration isolation support according to claim 1, characterized in that: There are two spring vibration isolation supports, and the spring vibration isolation supports are spring vibration isolators.

8. The horizontal limit device of the spring vibration isolation support according to claim 5, characterized in that: The plate thickness of the supporting stiffening rib is the same as the wall thickness of the lower steel pipe, and the supporting stiffening rib is vertically aligned with the side walls on both sides of the lower steel pipe.

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