A shock insulation type column foundation

Abstract

The utility model relates to the field of column foundation, concretely relates to a shock insulation type column foundation, including the cushion layer, foundation base and cantilever column that set gradually from below to above, and the cantilever column top extends to the above of foundation base, and the cantilever column is fixed with the shielding steel sheet in the circumference, and the shielding steel sheet is fixed at the top of foundation base, and the shielding steel sheet and the cantilever column form the shock insulation ditch between, and the fine sand is filled in the shock insulation ditch, and the backfill soil layer is set up in the periphery of shock insulation ditch. The utility model can solve the problem that the dynamic stability of the existing column foundation structure is insufficient in the beacon equipment application scene.

Description

Technical Field

[0001] This utility model relates to the field of column foundations, specifically to a seismic isolation column foundation. Background Technology

[0002] As a core component in the Internet of Things (IoT) and location services fields, beacon devices continuously transmit wireless signals (such as Bluetooth and radio frequency) to achieve functions such as positioning, information push, and device collaboration, and are widely used in scenarios such as indoor navigation and smart warehousing. In these scenarios, the signal transmission accuracy and stability of beacon devices directly depend on the structural stability of their installation foundation. Any slight displacement, vibration, or settlement may cause signal propagation path deviation and coverage distortion, thereby affecting the operating efficiency of the entire system.

[0003] For example, in indoor navigation scenarios (such as large shopping malls and airport terminals), beacon devices are typically deployed along aisles, escalators, and other key locations. If the foundation tilts or settles, the angle of the signal emitted by the beacon will deviate, causing the location information received by the user terminal to drift, resulting in incorrect navigation path planning and severely impacting the user experience. In smart warehousing scenarios, beacon devices are used to mark shelf locations and goods status. If the installation foundation shakes due to ground vibrations (such as forklift operations or goods handling), the position calibration between the beacon and the warehouse management system will fail, causing incorrect goods positioning and increasing the time and cost of sorting and inventory counting.

[0004] Traditional column foundation structures (such as the concrete foundation pad structure for mountainous terrain disclosed in patent CN2892972Y) are mainly designed for static load-bearing requirements. The overall stability of the foundation is achieved through the adaptation of the pad layer to the ground. However, they do not consider the special requirements of beacon equipment for dynamic stability. On the one hand, in a vibrating environment, the foundation can easily transmit external vibrations to the beacon equipment, causing interference to its internal electronic components (such as antennas and sensors). On the other hand, when uneven settlement occurs in the foundation, the rigid connection design of traditional foundations cannot buffer the stress caused by settlement, which can easily cause the beacon equipment to tilt, directly compromising the spatial accuracy of signal transmission. Utility Model Content

[0005] The present invention aims to provide a seismic isolation column foundation to solve the problem of insufficient dynamic stability of existing column foundation structures in beacon equipment application scenarios.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A seismic isolation column foundation includes a pad layer, a foundation base, and a cantilever column arranged sequentially from bottom to top. The top of the cantilever column extends above the foundation base. A shielding steel plate is fixed around the cantilever column. The shielding steel plate is fixed to the top of the foundation base. A seismic isolation trench is formed between the shielding steel plate and the cantilever column. The seismic isolation trench is filled with fine sand, and a backfill soil layer is set around the seismic isolation trench.

[0008] The beneficial effects of this plan are:

[0009] 1. This solution involves installing a seismic isolation trench around the cantilever column, filled with fine sand, which effectively buffers vibration energy. The presence of the trench structurally cuts off the path of vibration transmission from the cantilever column directly to the short column and other parts of the foundation. When vibration propagates to the trench, the flexible nature of the fine sand prevents it from propagating as smoothly as in a rigid connection structure. Relative sliding and friction occur between the sand particles, effectively dissipating vibration energy, protecting the cantilever column, foundation base, and padding layer, maintaining the stability of the foundation structure, and ensuring the normal operation of vibration-sensitive devices such as beacon equipment.

[0010] 2. The circumferentially fixed shielding steel plate on the cantilever column can shield the electromagnetic waves transmitted or received by the beacon equipment. It prevents the electromagnetic waves from spreading randomly into the surrounding space, confining them within a certain range and reducing interference with surrounding electronic equipment. The shielding steel plate also blocks external electromagnetic interference from entering the cantilever column, protecting the control system of the beacon equipment installed on it. For beacon equipment, external electromagnetic interference can cause signal distortion and inaccurate positioning, while the shielding steel plate creates a relatively stable electromagnetic environment, ensuring the accuracy of signal transmission and reception, improving positioning accuracy and data transmission reliability.

[0011] 3. The installation of the foundation pad and base can effectively distribute the load transmitted from the superstructure, making the foundation more evenly stressed. Even if there is some uneven settlement in the foundation, the foundation pad and base can, through their own rigidity and deformation capacity, adjust the impact of uneven settlement to a certain extent, ensuring the verticality and stability of the cantilever column, thereby maintaining the normal function of the entire foundation.

[0012] Preferably, as an improvement, the shielding steel plate is vertically arranged above the foundation base.

[0013] Beneficial effects: The shielding steel plate is vertically installed above the foundation base, which can form a circumferentially uniform shielding barrier around the cantilever column, ensuring all-round interception of electromagnetic signals around the cantilever column and avoiding the appearance of local weak shielding areas due to the tilt of the shielding steel plate.

[0014] Preferably, as an improvement, the top of the shielding steel plate is flush with the top of the backfill layer.

[0015] Beneficial effects: The top of the shielding steel plate is flush with the top of the backfill layer, forming a continuous structural interface between the two, enhancing the overall integrity of the foundation and preventing local collapse of the backfill or damage to the exposed shielding steel plate due to height differences. Simultaneously, the flush design ensures that the vertical shielding range of the shielding steel plate extends to the ground surface, preventing electromagnetic waves from leaking or intruding through the gap between the top of the backfill and the shielding steel plate.

[0016] Preferably, as an improvement, the height of the shielding steel plate is 500mm.

[0017] Beneficial effects: The shielding steel plate is set at a height of 500mm, which can cover the key area where the cantilever column and the short column are connected, forming a sufficient vertical shielding range to effectively block electromagnetic signal interference within this height range and ensure that the beacon equipment control system is not affected by electromagnetic radiation from above and below; it can also provide sufficient lateral protection for the seismic isolation trench to prevent fine sand from being lost due to external impact or backfill pressure.

[0018] Preferably, as an improvement, the distance between the shielding steel plate and the cantilever column is 150mm.

[0019] Beneficial effects: Setting the distance between the shielding steel plate and the cantilever column to 150mm not only provides sufficient space for the vibration isolation trench, ensuring that fine sand can be evenly filled and form an effective vibration buffer layer, but also creates a reasonable electromagnetic shielding gap between the shielding steel plate and the cantilever column. This ensures that the shielding steel plate effectively intercepts electromagnetic waves around the cantilever column, preventing external electromagnetic interference from intruding or internal signals from leaking out. It also avoids rigid collisions between the shielding steel plate and the cantilever column during vibration due to insufficient spacing, ensuring the coordinated and stable operation of vibration isolation and shielding functions.

[0020] Preferably, as an improvement, a horizontal steel mesh is provided inside the bottom of the foundation base.

[0021] Beneficial effects: The horizontal steel mesh installed in the foundation base can enhance the overall rigidity and crack resistance of the foundation base. Through the tie effect of the steel bars, the load transmitted by the superstructure is evenly distributed to the pad layer and foundation, avoiding cracking or deformation of the foundation base due to excessive local stress.

[0022] Preferably, as an improvement, the diameter of the horizontal steel mesh is 12mm and the spacing is 150mm.

[0023] Beneficial effects: The horizontal steel mesh with a diameter of 12mm and a spacing of 150mm can ensure sufficient tensile strength through reasonable steel bar cross-sectional dimensions, effectively resisting the tensile stress generated by the foundation base under load. The 150mm spacing can also make the steel bars evenly distributed, further improving the overall rigidity and crack resistance of the base plate.

[0024] Preferably, as an improvement, the cantilever column is provided with intersecting vertical and horizontal reinforcing bars, and the vertical reinforcing bars in the cantilever column are fixedly connected to the horizontal reinforcing mesh in the foundation base.

[0025] Beneficial effects: The horizontal steel mesh in the foundation base and the vertical steel bars in the cantilever column are intersected and connected to form a continuous steel skeleton from the foundation base to the cantilever column, which greatly improves the integrity and coordinated load-bearing capacity of the entire structure. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0027] The reference numerals in the accompanying drawings include: 1. cushion layer; 2. horizontal steel mesh; 3. foundation base; 4. shielding steel plate; 5. backfill soil layer; 6. cantilever column; 7. seismic isolation trench; 8. transverse reinforcement; 9. vertical reinforcement. Detailed Implementation

[0028] The following detailed description illustrates the specific implementation method:

[0029] Example 1

[0030] like Figure 1 As shown, a seismic isolation column foundation includes, from bottom to top, a cushion layer 1, a foundation base 3, and a cantilever column 6. The cushion layer 1, as the bottom load-bearing structure, is laid directly on the foundation surface. Through the rigid support of its own concrete structure, it disperses the upper load and avoids localized settlement caused by hard contact between the foundation and the ground. A horizontal steel mesh 2 is embedded inside the foundation base 3. The horizontal steel mesh 2 uses 12mm diameter steel bars, formed by cross-welding (or binding) at 150mm intervals. This significantly enhances the crack resistance of the foundation base 3 and ensures that the vertical load is evenly transferred to the cushion layer 1.

[0031] A shielding steel plate 4 is vertically fixed to the top of the foundation base 3. The shielding steel plate 4 is fixed using a pre-embedded welding process; that is, a connecting steel plate compatible with the shielding steel plate 4 is pre-embedded before the foundation base 3 is poured. After the concrete of the foundation base 3 has solidified, the shielding steel plate 4 is fully welded to the pre-embedded connecting steel plate to ensure the shielding steel plate 4 is vertically stable. The height of the shielding steel plate 4 is controlled at 500mm, and the horizontal distance from the cantilever column 6 is 150mm, forming a closed electromagnetic shielding space around the cantilever column 6. A vibration isolation trench 7 is formed between the shielding steel plate 4 and the cantilever column 6. The vibration isolation trench 7 is filled with fine sand, utilizing the fluidity and particle friction characteristics of the fine sand to dissipate vibration energy. A backfill soil layer 5 is set around the perimeter of the vibration isolation trench 7. The backfill soil layer 5 is constructed using a layered compaction process, with the top of the shielding steel plate 4 flush with the top of the backfill soil layer 5. The cantilever column 6 has vertical steel bars 9 and horizontal steel bars 8 arranged in a cross pattern inside. The vertical steel bars 9 are set along the height direction of the cantilever column 6. The horizontal steel bars 8 are horizontally welded (or tied) to the vertical steel bars 9 at intervals. The bottom end of the vertical steel bars 9 is connected (or welded) to the horizontal steel mesh 2 in the foundation base 3 by sleeve grouting, so as to realize the rigid transfer of load from the cantilever column 6 to the foundation base 3.

[0032] When the foundation is subjected to the superstructure load (including the equipment's own weight, the dynamic load of the robotic arm, etc.) and environmental vibration, the vibration of the cantilever column 6 gradually consumes energy through the friction and compression deformation between the fine sand particles in the isolation trench 7. The backfill soil layer 5, with the stiffness of the compacted soil, further blocks the transmission path of the vibration to the foundation, thus achieving efficient vibration isolation.

[0033] The shielding steel plate 4 utilizes the reflection, absorption, and attenuation characteristics of metallic materials to construct a closed electromagnetic barrier. This not only blocks external electromagnetic interference (such as high-frequency signals from surrounding electronic devices) and protects the signal purity of beacons and other equipment on the cantilever column 6, but also restricts the leakage of electromagnetic signals from the cantilever column 6 itself, preventing interference with the surrounding sensitive electronic environment. In the load transfer path, the vertical load of the cantilever column 6 is precisely transferred via the vertical reinforcing bars 9 to the horizontal reinforcing mesh 2 within the foundation base 3. Then, through the synergistic effect of the horizontal reinforcing mesh 2 and the foundation base 3, the concentrated load is diffused into a surface load, which is then evenly transferred to the foundation through the cushion layer 1, ensuring the strength and stability of the foundation structure.

[0034] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A seismic isolation column foundation, characterized in that: The structure includes, from bottom to top, a cushion layer, a foundation base, and a cantilever column. The top of the cantilever column extends above the foundation base. A shielding steel plate is fixed around the cantilever column. The shielding steel plate is fixed to the top of the foundation base. A seismic isolation trench is formed between the shielding steel plate and the cantilever column. The seismic isolation trench is filled with fine sand, and a backfill soil layer is set around the perimeter of the seismic isolation trench.

2. The seismic isolation column foundation according to claim 1, characterized in that: The shielding steel plate is vertically installed above the foundation base.

3. The seismic isolation column foundation according to claim 2, characterized in that: The top of the shielding steel plate is flush with the top of the backfill soil layer.

4. The seismic isolation column foundation according to claim 3, characterized in that: The height of the shielding steel plate is 500mm.

5. A seismic isolation column foundation according to claim 4, characterized in that: The distance between the shielding steel plate and the cantilever column is 150mm.

6. A seismic isolation column foundation according to claim 1, characterized in that: A horizontal steel mesh is installed inside the bottom of the foundation base.

7. A seismic isolation column foundation according to claim 6, characterized in that: The horizontal steel mesh has steel bars with a diameter of 12mm and a spacing of 150mm.

8. A seismic isolation column foundation according to claim 7, characterized in that: The cantilever column is equipped with intersecting vertical and horizontal reinforcing bars, and the vertical reinforcing bars in the cantilever column are fixedly connected to the horizontal reinforcing mesh in the foundation base.

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