CN118774260A - A steel grid universal anti-seismic sliding support device - Google Patents

Abstract

The present invention provides a universal anti-seismic sliding bearing device for a steel grid, which relates to the technical field of anti-seismic structures of grids, and includes a support column, a fixed seat, a sliding block, a round buckle plate and a connecting column; the fixed seat is fixed on the top of the supporting column, a bottom support plate is fixed inside the fixed seat, a sliding groove is provided on the bottom support plate, the sliding block is supported in the sliding groove by sliding on a circular arc surface, an upper ring sleeve is provided on the outer sleeve of the sliding block, the round buckle plate is buckled outside the upper ring sleeve, and a plurality of hydraulic damping cylinders are provided between the inner wall of the round buckle plate and the outer wall of the upper ring sleeve. The beneficial effects of the present invention are as follows: the hydraulic damping cylinder of the device surrounds the upper ring sleeve, the hydraulic damping cylinder can generate resistance to the eccentric movement of the sliding block, reduce the vibration and displacement between the connecting column and the supporting column, thereby damping the connection structure between the connecting column and the supporting column, and the sliding matching structure of the sliding block and the sliding groove can improve the stability of the anti-seismic sliding bearing device.

Description

A steel grid universal anti-seismic sliding support device

Technical Field

The invention relates to the technical field of grid anti-seismic structures, in particular to a steel grid universal anti-seismic sliding support device.

Background Art

Steel grid spherical bearing is a kind of bearing widely used in steel grid structure buildings, mainly used to bear vertical loads. Steel grid structure is often used in large-span space structures such as gymnasiums and exhibition halls. The support columns and connecting columns of the grid structure are usually connected by welding. The support columns provide support force, and the connecting columns can disperse the load. The support columns and connecting columns are usually connected by high-strength rigid connection. This connection method has high strength but limited seismic resistance. When strong vibrations (such as earthquakes) occur, the connection structure of the support columns and connecting columns is prone to connection cracking under high impact loads, which in turn causes great economic losses and casualties. Therefore, in the construction of modern steel structure grids, it is necessary to fully consider the seismic factors. It is necessary to add connection components with seismic resistance between the support columns and connecting columns of the steel grid structure to reduce the impact load and reset ability of the support columns and connecting columns under vibration, thereby improving the connection toughness of the steel grid structure.

Summary of the invention

In view of this, in order to reduce the impact loads borne by the support columns and connecting columns of the steel grid structure under vibration and improve the seismic resistance and connection toughness of the steel grid structure, the present invention provides a steel grid universal seismic sliding support device, including a support column, a fixing seat, a sliding block, a round buckle plate and a connecting column;

The fixing seat comprises a fixing buckle and a bottom support plate, wherein the fixing buckle is fixed to the top of the supporting column, the bottom support plate is located in the fixing buckle, the fixing buckle is provided with a mounting hole, the upper surface of the bottom support plate is provided with a sliding groove, and the edge of the mounting hole is pressed and fixed to the edge of the bottom support plate;

The lower part of the slider is provided with a sliding member which is slidably arranged in the sliding groove.

The slider is sleeved with an upper ring sleeve, the round buckle plate is buckled outside the upper ring sleeve, and a plurality of hydraulic damping cylinders are arranged between the inner wall of the round buckle plate and the outer wall of the upper ring sleeve.

The connecting columns are all connected to the circular buckle plates.

Furthermore, the bottom of the sliding block is an arc-shaped surface, the sliding groove is an arc-shaped sliding groove, and the bottom of the sliding block can be relatively slidably supported in the sliding groove.

Furthermore, at least three limiting columns are provided on the top of the support column, and the sliding block is located between the three limiting columns.

Furthermore, a hemispherical shell is also provided on the circular buckle plate, the bottom of the hemispherical shell is fixed to the upper surface of the circular buckle plate, and the ends of all the connecting columns are vertically fixed to the hemispherical shell.

Furthermore, a reinforcing support member is provided in the hemispherical shell, and the reinforcing support member includes a connecting base plate and two semicircular support plates, the connecting base plate is fixed to the circular buckle plate, the two semicircular support plates are vertically connected to the connecting base plate, and the two semicircular support plates support the inner surface of the hemispherical shell.

Furthermore, the hydraulic damping cylinder includes a cylinder body, a piston plate and a piston rod, the piston plate is slidably arranged in the cylinder body, the end of the piston rod is connected to the piston plate, the cylinder body and the piston rod both have connecting ends, the two connecting ends are respectively connected to the outer wall of the upper ring sleeve and the inner wall of the circular buckle plate, and at least two one-way pressure reducing valves are provided on the piston plate.

Furthermore, hydraulic oil is injected into the oil cylinder body, the two oil cylinder body cavities of the piston plate are divided into two hydraulic chambers, two one-way pressure reducing valves are connected to the two hydraulic chambers, and the directions of hydraulic oil allowed to flow by the two one-way pressure reducing valves are opposite.

Furthermore, the outer portion of the upper ring sleeve and the inner wall of the round buckle plate are both provided with limiting holes, and the two connecting ends on the cylinder body and the piston rod are respectively limited in the two limiting holes.

Furthermore, the top of the round buckle plate is arranged on the top plate, and the top of the sliding block is provided with a first elastic member, and the first elastic member is an elastic pad made of rubber material.

Furthermore, a second elastic member is sleeved outside the first elastic member, and the second elastic member is a coil spring.

The beneficial effects of a universal anti-seismic sliding bearing device for a steel grid frame of the present invention are as follows: the anti-seismic sliding bearing device comprises a supporting column, a fixing seat, a sliding block, a circular buckle plate and a connecting column; the fixing seat is fixed on the top of the supporting column, a bottom supporting plate is fixed in the fixing seat, a sliding groove is provided on the bottom supporting plate, the sliding block is supported by sliding in the sliding groove through a circular arc surface, an upper ring sleeve is arranged on the outer surface of the sliding block, the circular buckle plate is buckled on the outer surface of the upper ring sleeve, a plurality of hydraulic damping oil cylinders are arranged between the inner wall of the circular buckle plate and the outer wall of the upper ring sleeve, the hydraulic damping oil cylinder surrounds and is perpendicular to the upper ring sleeve, all the hydraulic damping oil cylinders can provide the sliding block with a centripetal supporting force passing through its axis, when the connecting column and the supporting column vibrate and displace relative to each other, all the hydraulic damping oil cylinders generate resistance to the eccentric movement of the sliding block, thereby reducing the shock absorption of the connecting structure of the connecting column and the supporting column, and preventing the vibration impact force between the connecting column and the supporting column from destroying the connecting structure of the two; and the sliding cooperation of the sliding block and the sliding groove can ensure that the connecting column and the supporting column are automatically reset after vibration, thereby improving the stability of the anti-seismic sliding bearing device. In addition, the seismic sliding support device has the advantages of high integrity and easy installation. It can greatly shorten the overall construction period of the steel grid of large-span venues, and does not affect the use of space after its installation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the overall structure of a steel grid universal anti-seismic sliding bearing device according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of a first partial enlarged structure in FIG. 1 .

FIG. 3 is a schematic diagram of the dispersed structure of a steel grid universal anti-seismic sliding bearing device according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of a second partial enlarged structure in FIG. 3 .

FIG. 5 is a schematic structural diagram of the hydraulic damping cylinder in FIG. 4 .

In the above figure: 1-support column, 11-limit column, 12-fixed bottom plate, 2-bottom support plate, 3-fixed buckle ring, 4-slider member, 5-upper ring sleeve, 51-circular buckle plate, 52-elastic pad, 53-helical spring, 6-hydraulic damping cylinder, 61-cylinder body, 62-piston plate, 63-one-way pressure reducing valve, 64-piston rod, 7-hemispherical shell, 71-reinforced support, 8-connecting column.

DETAILED DESCRIPTION

To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

Please refer to FIG. 1 to FIG. 5 , the present invention provides a steel grid universal anti-seismic sliding support device, including a support column 1 , a fixing seat, a sliding block 4 , a round buckle plate 51 and a connecting column 8 .

The support column 1 is vertically arranged, and a fixed bottom plate 12 is provided on the top of the support column 1, and the two are welded together. The fixing seat includes a fixing buckle 3 and a bottom support plate 2. The bottom support plate 2 is fixed to the top of the support column 1 through the fixing buckle 3, and the fixing buckle 3 is fixed to the bottom support plate 2 through a fixing bolt, so that the fixing buckle 3 is fixed to the top of the support column 1. A mounting hole is provided on the fixing buckle 3, and the edge of the mounting hole is pressed and fixed to the edge of the bottom support plate 2. A sliding groove is provided on the upper surface of the bottom support plate 2, and the sliding groove on the upper surface of the bottom support plate 2 is exposed from the mounting hole, so that the sliding block 4 can be supported in the sliding groove.

The lower arc surface of the slider member 4 is a flat structure at the top, and the sliding groove is an arc-shaped sliding groove. In this embodiment, the sliding groove and the lower arc surface of the slider member 4 cooperate with each other, so that the slider member 4 and the sliding groove constitute a sliding connection mechanism. The bottom support plate is used to support the slider member 4 and ensure that the bottom support plate and the slider member 4 can rotate coaxially. The sliding groove and the lower arc surface of the slider member 4 are both concentric spherical structures.

The slider member 4 is sleeved with an upper ring sleeve 5 of a circular structure, and the two are rigidly connected. The circular buckle plate is buckled on the outside of the upper ring sleeve 5. A plurality of hydraulic damping cylinders 6 are arranged between the inner wall of the circular buckle plate 51 and the outer wall of the upper ring sleeve 5. The hydraulic damping cylinders 6 are arranged around the upper ring sleeve 5 and the slider member 4. All the hydraulic damping cylinders 6 are perpendicular to the axis of the slider member 4, and all the hydraulic damping cylinders 6 are on the same plane. The connecting columns 8 are all connected to the circular buckle plate 51.

Since all the hydraulic damping cylinders 6 are located in the gap between the circular buckle plate 51 and the upper ring sleeve 5, when the connecting column 8 and the supporting column 1 vibrate and displace relative to each other, the sliding block 4 slides relative to the bottom support plate in the sliding groove. At this time, the upper ring sleeve 5 and the circular buckle plate 51 fixed on the sliding block 4 move eccentrically, and all the hydraulic damping cylinders 6 generate resistance to the eccentric movement, thereby reducing the vibration and displacement between the connecting column 8 and the supporting column 1, thereby damping the connection structure between the connecting column 8 and the supporting column 1, and the sliding cooperation between the sliding block 4 and the sliding groove can ensure that the connecting column 8 and the supporting column 1 automatically reset after vibration.

Preferably, at least three limit columns are provided on the top of the support column 1. In the present embodiment, there are three limit columns, all of which are vertically arranged on the top of the support column 1. The three limit columns are arranged around the slider 4. The slider 4 and the round buckle plate 5 are located between the three limit columns. The limit columns can limit the slider 4 and the round buckle plate 5 to prevent the connecting column 8 and the support column 1 from vibrating too much and causing the slider 4 to separate from the bottom support plate.

Preferably, a hemispherical shell 7 is further provided on the circular gusset plate 51, the bottom of the hemispherical shell 7 is fixed to the upper surface of the circular gusset plate 51, and the ends of all the connecting columns 8 are vertically fixed to the hemispherical shell 7. A reinforcing support 71 is provided inside the hemispherical shell 7, and the reinforcing support 71 includes a connecting bottom plate and two semicircular support plates, the connecting bottom plate is fixed to the circular gusset plate 51, the two semicircular support plates are vertically connected to the connecting bottom plate, and the two semicircular support plates support the inner surface of the hemispherical shell 7, and the reinforcing support 71 is used to improve the connection strength between the hemispherical shell 7 and the circular gusset plate 51, so as to prevent the hemispherical shell 7 from being dented due to excessive force.

Preferably, the hydraulic damping cylinder 6 comprises a cylinder body 61, a piston plate 62 and a piston rod 64, wherein the piston plate 62 is slidably disposed in the cylinder body 61, the end of the piston rod 64 is connected to the piston plate 62, the cylinder body 61 and the piston rod 64 both have connecting ends, the two connecting ends are respectively connected to the outer wall of the upper ring sleeve 5 and the inner wall of the round buckle plate 51, and at least two one-way pressure reducing valves 63 are provided on the piston plate 62. Hydraulic oil is injected into the cylinder body 61, the piston plate 62 and the two cylinder body 61 cavities are divided into two hydraulic chambers, and the two one-way pressure reducing valves 63 are connected to the two hydraulic chambers, and the directions of the hydraulic oil allowed to flow by the two one-way pressure reducing valves 63 are opposite, so that the hydraulic oil in the two hydraulic chambers can flow through the corresponding one-way pressure reducing valves 63. In the initial state, the piston plate 62 is located in the middle of the cylinder body 61, and the volumes of the two hydraulic chambers are equal. When the connecting column 8 and the supporting column vibrate and displace relative to each other, the piston rod 64 and the cylinder body 61 are displaced, thereby causing the piston plate 62 to move in the cylinder body 61. At this time, the volumes and oil pressures of the two hydraulic chambers change, and the hydraulic oil flows from one hydraulic chamber to the other. During the flow of the hydraulic oil, the one-way pressure reducing valve 63 can generate resistance to the flowing hydraulic oil, thereby slowing down the movement speed of the piston plate 62, and further reducing the horizontal impact force when the connecting column 8 and the supporting column 1 vibrate.

Preferably, the outside of the upper ring sleeve 5 and the inner wall of the circular buckle plate 51 are provided with limiting holes, and the two connecting ends on the cylinder body 61 and the piston rod 64 are respectively limited in the two limiting holes. The limiting holes are used to enable the hydraulic damping cylinder 6 to be accurately installed between the inner wall of the circular buckle plate 51 and the outer wall of the upper ring sleeve 5, ensuring that the direction of displacement of the piston rod 64 and the cylinder body 61 of the hydraulic damping cylinder 6 is perpendicular to the axis of the slider 4.

Preferably, the top of the round buckle plate 51 is arranged on the top plate, so that all the round buckle plates 51 are bottomless cylindrical sleeve structures, and the hemispherical shell 7 and the reinforcing support member 71 are fixed on the top plate. A first elastic member is arranged on the top of the slider member 4, and the first elastic member is an elastic pad 52 made of rubber material. A second elastic member is also sleeved outside the first elastic member, and the second elastic member is a coil spring 53. The first and second elastic members respectively resist the top plate and the slider member 4 from top to bottom, and the first and second elastic members can reduce and further reduce the impact force in the vertical direction when the connecting column 8 and the support column 1 vibrate.

In this document, the directional words such as front, back, top, and bottom are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the directional words should not limit the scope of protection claimed in this application.

In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

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, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The universal anti-seismic sliding support device for the steel mesh frame is characterized by comprising a support column, a fixed seat, a sliding block piece, a round buckle plate and a connecting column;

the fixing seat comprises a fixing buckle ring and a bottom supporting plate, the fixing buckle ring is fixed at the top of the supporting column, the bottom supporting plate is positioned in the fixing buckle ring, a mounting hole is formed in the fixing buckle ring, a sliding groove is formed in the upper surface of the bottom supporting plate, and the edge of the mounting hole is tightly pressed and fixed with the edge of the bottom supporting plate;

The lower part of the sliding block piece is arranged in the sliding groove in a sliding way,

The sliding block piece is sleeved with an upper ring sleeve, the round buckle plate is buckled outside the upper ring sleeve, and a plurality of hydraulic damping cylinders are arranged between the inner wall of the round buckle plate and the outer wall of the upper ring sleeve;

The connecting posts are connected to the round buckle plate.

2. The steel mesh frame universal anti-seismic sliding support device according to claim 1, wherein the bottom of the sliding block piece is an arc-shaped surface, the sliding groove is an arc-shaped sliding groove, and the bottom of the sliding block piece is supported in the sliding groove in a relatively sliding manner.

3. The steel mesh frame universal anti-seismic sliding support device according to claim 1, wherein at least three limiting columns are further arranged on the tops of the supporting columns, and the sliding block piece is located among the three limiting columns.

4. The steel mesh frame universal anti-seismic sliding support device according to claim 1, wherein a hemispherical shell is further arranged on the round buckle plate, the bottom of the hemispherical shell is fixed on the upper surface of the round buckle plate, and all connecting columns are vertically fixed on the hemispherical shell at the end parts.

5. The steel mesh frame universal anti-seismic sliding support device according to claim 4, wherein a reinforcing support piece is arranged in the hemispherical shell and comprises a connecting bottom plate and two semicircular support plates, the connecting bottom plate is fixed on the circular buckle plate, the two semicircular support plates are mutually perpendicular to the connecting bottom plate, and the two semicircular support plates support the inner surface of the hemispherical shell.

6. The steel mesh frame universal anti-seismic sliding support device according to claim 5, wherein the hydraulic damping oil cylinder comprises an oil cylinder body, a piston plate and a piston rod, the piston plate and the piston rod are slidingly arranged in the oil cylinder body, the end part of the piston rod is connected to the piston plate, the oil cylinder body and the piston rod are respectively provided with connecting ends, the two connecting ends are respectively connected to the outer wall of the upper ring sleeve and the inner wall of the round buckle plate, and at least two one-way pressure reducing valves are arranged on the piston plate.

7. The steel mesh frame universal anti-seismic sliding support device according to claim 6, wherein hydraulic oil is injected into the oil cylinder body, the two oil cylinder body cavities of the piston plate are divided into two hydraulic cavities, the two one-way pressure reducing valves are communicated with the two hydraulic cavities, and the directions of the two one-way pressure reducing valves allowing the hydraulic oil to flow are opposite.

8. The steel mesh frame universal anti-seismic sliding support device according to claim 6, wherein limiting holes are formed in the outer portion of the upper ring sleeve and the inner wall of the round buckle plate, and two connecting ends on the oil cylinder body and the piston rod are limited in the two limiting holes respectively.

9. The steel mesh frame universal anti-seismic sliding support device according to claim 1, wherein the top of the round buckle plate is arranged on the top plate, the top of the sliding block piece is provided with a first elastic piece, and the first elastic piece is an elastic cushion block made of rubber materials.

10. The steel mesh frame universal anti-seismic sliding support device according to claim 9, wherein the first elastic piece is sleeved with a second elastic piece, and the second elastic piece is a coil spring.