Novel building foundation shock absorption and isolation structure

Abstract

The utility model discloses a novel building foundation shock absorption and isolation structure which is characterized in that foundation wells are uniformly distributed in a foundation, shock absorption boxes are mounted in the foundation wells, bearing columns penetrate through the boxes, finally, all the bearing columns corresponding to the foundation wells are connected through cross beams, and the cross beams serve as direct connection parts of building bearing. After the weight of a building acts on the cross beam, the weight is uniformly dispersed to the bearing columns corresponding to the foundation wells, the bearing columns transfer the gravity downwards to the laminated rubber in the damping box body, vibration during an earthquake is transferred to the building from a foundation, and the vibration is transferred to the laminated rubber and the damping springs through the damping box body in cooperation with the partition. Due to the fact that the damping devices are arranged on the periphery of the damping box body and can offset the vibration, the stability of the bearing columns can be guaranteed, and then the stability of the building can be guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of building foundation structure, and in particular relates to a novel building foundation vibration reduction and isolation structure. Background Technology

[0002] Earthquake-resistant buildings refer to buildings that must be designed to withstand earthquakes in areas with a seismic fortification intensity of 6 degrees or higher. This design aims to ensure that buildings can withstand vibrations during an earthquake, reducing casualties and property damage. Building foundations refer to the soil or rock mass supporting the foundation of a building. Soil layers used as building foundations are classified into rock, gravelly soil, sandy soil, silty soil, cohesive soil, and artificial fill. Foundations are divided into two categories: natural foundations and artificial foundations (composite foundations). Natural foundations are natural soil layers that do not require reinforcement, while artificial foundations require reinforcement treatment. Common methods include stone chip cushion layers, sand cushion layers, and backfilling with mixed lime-soil and then compacting. Especially in rural self-built houses, ground subsidence and settlement are difficult problems to solve. Currently, in the domestic construction industry, when constructing buildings, the construction method of using clay bricks, hollow bricks, or reinforced concrete to make columns and frames, and then using clay bricks or hollow bricks to build walls, is used. The production of clay bricks wastes clay mineral resources, and the buildings are too heavy, with low seismic coefficients and low load-bearing strength. The method of using steel mesh and concrete pouring is costly and has a long construction period, especially for high-rise buildings that bear large weights, where the load-bearing and seismic damping effects are not good. Utility Model Content

[0003] The purpose of this invention is to provide a novel seismic isolation and damping structure for building foundations. This structure is simple and convenient to construct and improves the seismic resistance and isolation coefficient of buildings.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A novel building foundation vibration damping and isolation structure includes multiple foundation wells. A damping box is located at the center of each foundation well, and a load-bearing column runs through the middle of the damping box. A laminated rubber is fitted onto the load-bearing column, and the laminated rubber is located inside the damping box. A damping spring is located on the upper part of the load-bearing column. A partition is set between the damping spring and the laminated rubber inside the damping box. The partition is fixedly connected to the load-bearing column. A through hole is provided in the middle of the partition, through which the load-bearing column passes. Damping devices are connected between the sides of the damping box and the inner wall of the foundation well. A foundation surface is provided on the top of the damping device. The damping spring is located between the foundation surface and the partition. The foundation surface is fixed to the top of the foundation well and the top of the damping box. The load-bearing columns corresponding to the multiple foundation wells are connected by crossbeams.

[0006] The bottom of the shock absorber box is filled with concrete with a sand-cement ratio of 2:1, a sand particle size of 0.5-1.2mm, and 10% lime and 5% gravel.

[0007] A further technical solution is that the torsional resistance range of the damping device is 500-1000 tons.

[0008] A further technical solution is that the laminated rubber is made from natural rubber or synthetic rubber.

[0009] A further technical solution is to provide a shock absorber spring with a load range of 245N-35040N.

[0010] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0011] This invention involves evenly distributing foundation wells in the foundation, installing damping boxes within each well, and having load-bearing columns pass through the boxes. All the load-bearing columns corresponding to the foundation wells are connected by crossbeams. These crossbeams serve as direct load-bearing connections, distributing the building's weight evenly across the load-bearing columns of each foundation well. The load-bearing columns then transfer the weight downwards to the laminated rubber within the damping boxes. During an earthquake, vibrations are transmitted from the foundation to the building. In the vertical direction, the vibrations pass through the damping boxes and, with the help of damping barriers, are transmitted to the laminated rubber and damping springs. These components work together to counteract the vibrations. In the horizontal direction, damping devices are installed around the damping boxes. While the vibrations from the foundation must pass through these devices before reaching the damping boxes, they are effectively canceled out, thus ensuring the stability of the load-bearing columns and consequently, the stability of the building. Therefore, the technical solution of this invention can improve the seismic resistance coefficient.

[0012] This utility model adopts a load-bearing method that combines laminated rubber and shock-absorbing springs, which disperses the foundation load and effectively disperses the impact caused by earthquake shaking; it suppresses the oscillation and impact when the spring absorbs shock and rebounds, strengthens the stability of the wall, prevents the wall from shaking, and improves the seismic resistance.

[0013] This utility model adopts a circular ring and grab-shaped force-dispersing design for the foundation, which increases the force-bearing area, disperses the building weight, reduces the concentration of local weight, and enhances the stability and earthquake resistance of the building.

[0014] This utility model uses a foundation with laminated rubber bearings made of high-quality natural or synthetic rubber, which have good mechanical properties and overall reset function. When an earthquake occurs, it can absorb seismic energy through elastic deformation. When the seismic force acts on the building, the seismic isolation device itself will generate friction, bending, torsion or elastoplastic deformation, thereby reducing the impact of the earthquake on the building.

[0015] This utility model uses a spring damper as the damping device, which is a vibration control device that is sensitive to displacement; it can effectively control vibrations and oscillations of various frequencies and limit the normal thermal displacement of buildings to a certain extent.

[0016] This invention utilizes the damping characteristics of a damping device to reduce building vibration and dissipate kinetic energy, increase resistance to motion, and reduce kinetic energy, thus achieving a highly efficient vibration reduction and isolation effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 yes Figure 1 A top view of the structure as shown;

[0019] Figure 3 This is a schematic diagram of the connection structure of the crossbeam described in this utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] like Figures 1-3 As shown. A novel building foundation vibration damping and isolation structure includes multiple foundation wells 1. A damping box 2 is located at the center of each foundation well 1. A load-bearing column 3 runs through the middle of the damping box 2. A laminated rubber 4 is fitted onto the load-bearing column 3 and is located inside the damping box 2. A damping spring 5 is located on the upper part of the load-bearing column 3. A partition 11 is provided between the damping spring 5 and the laminated rubber 4 inside the damping box 2. The partition 11 is fixedly connected to the load-bearing column 3. A through hole is provided in the middle of the partition 11, through which the load-bearing column 3 passes. Damping devices 6 are connected between the side of the damping box 2 and the inner wall of the foundation well 1. A foundation surface 8 is provided on the top of the damping device 6. The damping spring 5 is located between the foundation surface 8 and the partition 11. The foundation surface 8 is fixed to the top of the foundation well 1 and the top of the damping box 2. The load-bearing columns 3 corresponding to the multiple foundation wells 1 are connected by crossbeams 10.

[0022] In use, foundation wells 1 are evenly distributed in the foundation. A damping box 2 with load-bearing columns 3 is installed inside each foundation well 1. Concrete 7 is poured at the bottom of the damping box 2, and the space above the concrete 7 is filled with quartz sand 12 to support the damping box 2. Although the load-bearing columns 3 penetrate the damping box 2, they do not contact the concrete 7 or the foundation within the foundation well. A protective pipe 13 can be fixed to the bottom of the damping box 2, with the lower end of the load-bearing column 3 located inside the protective pipe. Laminated rubber 4 is then installed between the damping box 2 and the inner wall of the foundation well 1. The foundation surface 8 is connected to the damping box 2 and the top of the foundation well 1 by bolts 9. A gap is left between the holes in the foundation well 1 for installing the bolts 9 and the bolts 9, achieving a flexible connection between the foundation surface 8, the damping box 2, and the foundation well 1 in the horizontal direction. Finally, all the load-bearing columns 3 corresponding to the foundation well 1 are connected by a crossbeam 10. The crossbeam 10 serves as the direct connection point for the building's load-bearing structure. After the weight is applied to the crossbeam 10, it is evenly distributed to the load-bearing columns 3 corresponding to each foundation well 1. The load-bearing columns 3 transmit the gravity downward to the laminated rubber 4 inside the damping box 2. At the same time, the damping box 2 and the concrete below it also bear the gravity. The vibration during an earthquake is transmitted from the foundation to the building. During the transmission of vibration, in the vertical direction, the vibration passes through the damping box 4 and is transmitted to the laminated rubber 4 and the damping spring 5 in conjunction with the partition 11. The two work together to cancel out this vibration. The partition 11 and the load-bearing column 3 are integrally formed. In the horizontal direction, since the damping device 6 is set around the damping box, the vibration of the foundation needs to be transmitted to the damping box 2 through the damping device 6. However, the damping device 6 can cancel out this vibration, so the stability of the load-bearing column can be guaranteed, and thus the stability of the building can be guaranteed. The damping device 6 is an existing shock absorber, which has its own damping characteristics, similar to the existing chassis shock absorber of a car.

[0023] The sand-cement ratio of the poured filling concrete 7 is 2:1, the sand particle size is 0.5-1.2mm, and it is mixed with 10% lime and 5% gravel.

[0024] The torsional resistance of the damping device 6 is in the range of 500-1000 tons.

[0025] The laminated rubber 4 is made of natural or synthetic rubber and has good mechanical properties and overall reset function. When an earthquake occurs, it can absorb earthquake energy through elastic deformation. When the earthquake force acts on the building, the components in the seismic isolation structure undergo friction, bending, torsion or elastoplastic deformation, thereby reducing the impact of the earthquake on the building.

[0026] The load range of damping spring 5 is 245N-35040N.

[0027] The above are merely preferred embodiments of this utility model.

Claims

1. A novel building foundation shock absorption isolation structure, comprising a plurality of foundation wells (1), a shock absorption box (2) is arranged in the center of the foundation well (1), a load-bearing column (3) penetrates the middle of the shock absorption box (2), a laminated rubber (4) is sleeved on the load-bearing column (3), and the laminated rubber (4) is located in the shock absorption box (2), a shock absorption spring (5) is arranged on the upper portion of the load-bearing column (3), a partition is arranged between the shock absorption spring (5) and the laminated rubber (4) in the shock absorption box (2), the partition is fixedly connected with the load-bearing column (3), a through hole is arranged in the middle of the partition, the load-bearing column (3) penetrates the through hole, damping devices (6) are connected between the side surface of the shock absorption box (2) and the inner wall of the foundation well (1), a foundation surface (8) is arranged on the top of the damping device (6), the shock absorption spring (5) is located between the foundation surface (8) and the partition, the foundation surface (8) is fixed with the top of the foundation well (1) and the top of the shock absorption box (2), and the corresponding load-bearing columns (3) between the plurality of foundation wells (1) are connected by a cross beam (10).

2. A novel building foundation shock absorption and isolation structure according to claim 1, characterized in that: The torsional resistance of the damping device (6) is 500-1000 tons.

3. A novel building foundation shock absorption and isolation structure according to claim 1, characterized in that: The laminated rubber (4) is made of natural rubber or synthetic rubber as raw material.

4. A novel building foundation shock absorption and isolation structure according to claim 1, characterized in that: The load range of the shock absorption spring (5) is 245N-35040N.

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