CN211143822U

CN211143822U - Underpinning structure for building seismic isolation reinforcement

Info

Publication number: CN211143822U
Application number: CN201921427415.1U
Authority: CN
Inventors: 廖心心
Original assignee: Fujian Shengrong Ecological Flower Research Institute Co ltd
Current assignee: Fujian Shengrong Ecological Flower Research Institute Co ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-07-31
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses a reinforced (rfd) underpinning structure of building shock insulation, including first joist, first joist below both ends are equipped with first support pile, first joist top is equipped with the second joist, the symmetry is equipped with two second support piles between second joist and the first joist, the second joist has been close to one side of first joist and has been seted up the activity groove, the activity inslot is equipped with first slide bar, the symmetry cover is equipped with two first sliders on the first slide bar, first slider supports a stake fixed connection with the second, the equal fixedly connected with second slider in both ends of first slide bar, be equipped with first spring between first slider and the second slider, first spring housing is established on first slide bar. The utility model discloses in, under the buffering cushioning effect of first spring and second spring, the vibration range of second joist can be less than the vibration range of first joist far away, and then has slowed down the vibrations of second joist top building, has played the shock insulation effect.

Description

Underpinning structure for building seismic isolation reinforcement

Technical Field

The utility model relates to a underpinning technical field especially relates to a reinforced (rfd) underpinning structure of building shock insulation.

Background

The underpinning technology is used for solving the problems that the foundation of the existing building needs to be treated and the foundation needs to be reinforced; and the technology is a general term for the safety problem of the existing building caused by the need of constructing underground engineering under the foundation of the existing building and the need of constructing new engineering nearby the underground engineering. The underpinning technology is suitable for reinforcing, storey-adding or expanding existing buildings, and foundation treatment and foundation reinforcement of the existing buildings influenced by underground engineering construction, new construction and deep foundation pit excavation. The pile underpinning method is one of underpinning technology, and includes setting piles in the lower part or two sides of foundation structure, and setting underpinning joist filling pile or bearing platform system on the piles or directly anchoring the piles to the foundation to support underpinned wall and column foundation.

However, although the existing pile type underpinning structure has a high reinforcing effect, the shock insulation performance is general, and when an earthquake occurs, the shock of a building above the underpinning structure cannot be effectively relieved. Therefore, the existing underpinning structure needs to be improved, and the shock insulation effect of the underpinning structure is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the general shortcoming of present stake formula underpinning structure shock insulation performance, and the underpinning structure that a building shock insulation was consolidated that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a underpinning structure for building seismic isolation reinforcement comprises a first joist, wherein first supporting piles are arranged at two ends below the first joist, a second joist is arranged above the first joist, two second supporting piles are symmetrically arranged between the second joist and the first joist, a movable groove is formed in one side, close to the first joist, of the second joist, a first sliding rod is arranged in the movable groove, two first sliding blocks are symmetrically sleeved on the first sliding rod and fixedly connected with the second supporting piles, second sliding blocks are fixedly connected at two ends of the first sliding rod, a first spring is arranged between the first sliding blocks and the second sliding blocks, the first spring is sleeved on the first sliding rod, a sliding hole is formed in the second sliding block, a second sliding rod is arranged in the sliding hole, two ends of the second sliding rod are fixedly connected with the side wall of the movable groove, and second springs are arranged at two ends of the second sliding block, the second spring is sleeved on the second sliding rod.

Preferably, a plurality of damping grooves are uniformly formed in the top wall of the movable groove, and damping mechanisms are installed in the damping grooves.

Preferably, the damping mechanism comprises a connecting plate, a rubber pad and a movable block, wherein a ball groove is formed in one side, far away from the rubber pad, of the movable block, and a steel ball is embedded in the ball groove.

Preferably, the connecting plate and the movable block are made of metal materials, the connecting plate is fixedly connected with the bottom wall of the damping groove, and the rubber pad is bonded with the connecting plate and the movable block.

Preferably, a plurality of clamping grooves used for clamping the steel balls are formed in the surfaces of the first sliding block and the second sliding block, and the distance between every two adjacent clamping grooves is equal to the distance between every two adjacent damping grooves.

Preferably, the first sliding block, the second sliding block, the first sliding rod and the second sliding rod are all made of metal materials.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, when the second joist produced vibrations along with the earth's surface, first slider slided on first slide bar, and the second slider slides on the second slide bar, respectively under the buffering cushioning effect of first spring and second spring, the second joist can not shake along with first joist completely, and its vibration range can be less than the vibration range of first joist far away, and then has slowed down the vibrations of second joist top building, has played the shock insulation effect.

2. The utility model discloses in, install damper through the diapire at the activity groove, when first slider and second slider slided on activity tank bottom wall, damper also had the shock attenuation cushioning effect to the second joist, further reduced the vibration range of second joist for this structure is better to the vibration isolation effect of building.

Drawings

FIG. 1 is a schematic structural view of a underpinning structure for building seismic isolation reinforcement provided by the utility model;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is the utility model provides a building shock insulation reinforced underpinning structure's activity inslot structural schematic diagram.

In the figure: the device comprises a first supporting pile 1, a first supporting beam 2, a second supporting pile 3, a second supporting beam 4, a movable groove 5, a first sliding block 6, a first sliding rod 7, a first spring 8, a second sliding block 9, a second sliding rod 10, a second spring 11, a damping groove 12, a movable block 13, a ball groove 14, a steel ball 15, a clamping groove 16, a rubber pad 17 and a connecting plate 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a underpinning structure for building seismic isolation and reinforcement comprises a first joist 2, first supporting piles 1 are arranged at two ends below the first joist 2, the first supporting piles 1 are fixedly connected with the first joist 2, a second joist 4 is arranged above the first joist 2, two second supporting piles 3 are symmetrically arranged between the second joist 4 and the first joist 2, the second supporting piles 3 are fixedly connected with the first joist 2, a movable groove 5 is arranged at one side of the second joist 4 close to the first joist 2, a first slide bar 7 is arranged in the movable groove 5, two first slide blocks 6 are symmetrically sleeved on the first slide bar 7, the first slide blocks 6 are fixedly connected with the second supporting piles 3, second slide blocks 9 are fixedly connected with two ends of the first slide bar 7, a first spring 8 is arranged between the first slide blocks 6 and the second slide blocks 9, the first spring 8 is sleeved on the first slide bar 7, two ends of the first spring 8 are respectively fixedly connected with the first slide blocks 6 and the second slide blocks 9, a sliding hole is formed in the second sliding block 9, a second sliding rod 10 is installed in the sliding hole, two ends of the second sliding rod 10 are fixedly connected with the side wall of the movable groove 5, second springs 11 are arranged at two ends of the second sliding block 9, the second springs 11 are sleeved on the second sliding rod 10, two ends of the second springs 11 are fixedly connected with the second sliding block 9 and the bottom wall of the movable groove 5 respectively, in order to ensure the stability of the sliding block during sliding, the first sliding block 6, the second sliding block 9, the first sliding rod 7 and the second sliding rod 10 are made of metal materials, and the first supporting beam 2, the second supporting beam 4, the first supporting pile 1 and the second supporting pile 3 can be made of metal or can be made of concrete pouring;

in order to obtain better shock absorption performance, a plurality of shock absorption grooves 12 are uniformly formed in the top wall of the movable groove 5, a shock absorption mechanism is arranged in each shock absorption groove 12 and comprises a connecting plate 18, a rubber pad 17 and a movable block 13, a ball groove 14 is formed in one side, away from the rubber pad 17, of each movable block 13, a steel ball 15 is embedded in each ball groove 14, each connecting plate 18 and each movable block 13 are made of metal materials, each connecting plate 18 is fixedly connected with the bottom wall of each shock absorption groove 12, the rubber pads 17 are bonded with the connecting plates 18 and the movable blocks 13, a plurality of clamping grooves 16 used for clamping the steel balls 15 are formed in the surfaces of the first sliding block 6 and the second sliding block 9, the distance between every two adjacent clamping grooves 16 is equal to the distance between every two adjacent shock absorption grooves 12, when the first sliding block 6 and the second sliding block 9 move relative to the top of the movable groove 5, the, due to the elasticity of the rubber, a certain damping and buffering effect is achieved.

In the utility model, a building is arranged above the second joist 4, and the whole structure plays a role of bearing; when an earthquake occurs, the ground can generate vibration in the horizontal direction, so that the first sliding block 6 slides on the first sliding rod 7, the second sliding block 9 slides on the second sliding rod 10, and under the buffering and damping effects of the first spring 8 and the second spring 11, the vibration amplitude of the second joist 4 is smaller than that of the first joist 2, so that the vibration of a building above the second joist 4 is reduced; meanwhile, the damping mechanism is arranged on the bottom wall of the movable groove 5, when the first sliding block 6 and the second sliding block 9 move relative to the top of the movable groove 5, the steel ball 15 can be extruded to the inside of the damping groove 12, and due to the elasticity of rubber, the damping mechanism is elastically connected with the two sliding blocks, so that a certain damping and buffering effect is achieved on the second supporting beam 4. Therefore, when an earthquake occurs, the vibration amplitude of the building above the second joist 4 is far smaller than that of the earth surface, and the shock insulation effect is achieved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A underpinning structure for building seismic isolation reinforcement comprises a first joist (2), wherein first supporting piles (1) are arranged at two ends below the first joist (2), and is characterized in that a second joist (4) is arranged above the first joist (2), two second supporting piles (3) are symmetrically arranged between the second joist (4) and the first joist (2), a movable groove (5) is formed in one side, close to the first joist (2), of the second joist (4), a first sliding rod (7) is arranged in the movable groove (5), two first sliding blocks (6) are symmetrically sleeved on the first sliding rod (7), the first sliding blocks (6) are fixedly connected with the second supporting piles (3), second sliding blocks (9) are fixedly connected with two ends of the first sliding rod (7), and a first spring (8) is arranged between the first sliding blocks (6) and the second sliding blocks (9), first spring (8) cover is established on first slide bar (7), the inside slide opening of having seted up of second slider (9), install second slide bar (10) in the slide opening, the both ends of second slide bar (10) and the lateral wall fixed connection of activity groove (5), the both ends of second slider (9) all are equipped with second spring (11), second spring (11) cover is established on second slide bar (10).

2. The underpinning structure for building seismic isolation and reinforcement according to claim 1, characterized in that a plurality of shock absorption grooves (12) are uniformly arranged on the top wall of the movable groove (5), and a shock absorption mechanism is arranged in the shock absorption grooves (12).

3. The underpinning structure for building seismic isolation reinforcement according to claim 2, characterized in that the damping mechanism comprises a connecting plate (18), a rubber pad (17) and a movable block (13), a ball groove (14) is formed in one side of the movable block (13) far away from the rubber pad (17), and a steel ball (15) is embedded in the ball groove (14).

4. The underpinning structure for building seismic isolation and reinforcement according to claim 3, characterized in that the connecting plate (18) and the movable block (13) are made of metal materials, the connecting plate (18) is fixedly connected with the bottom wall of the damping groove (12), and the rubber pad (17) is bonded with the connecting plate (18) and the movable block (13).

5. The underpinning structure for building seismic isolation reinforcement according to claim 1, wherein a plurality of clamping grooves (16) for clamping steel balls (15) are formed in the surfaces of the first sliding block (6) and the second sliding block (9), and the distance between every two adjacent clamping grooves (16) is equal to the distance between every two adjacent shock absorption grooves (12).

6. The underpinning structure for building seismic isolation reinforcement according to claim 1, wherein the first sliding block (6), the second sliding block (9), the first sliding rod (7) and the second sliding rod (10) are made of metal materials.