Self-deflection seismic isolation groove system

Abstract

The invention discloses a self-displacement seismic isolation groove system and relates to the technical field of building construction, a seismic isolation groove is composed of a self-displacement mechanism and a seismic isolation assembly, the self-displacement mechanism comprises a self-displacement assembly and a reset assembly, the reset assembly is arranged on the right side of the self-displacement assembly, and the self-displacement assembly is slidably connected to the interior of the reset assembly; the shock isolation assemblies are located on the two inner side walls of the shock isolation groove correspondingly to form a semi-closed groove in a surrounding mode, and the self-displacement assembly is hinged to the two shock isolation assemblies which are oppositely arranged. The self-displacement mechanism has the advantages that the self-displacement mechanism arranged in the seismic isolation groove can be extruded according to the seismic isolation assembly when an earthquake occurs, so that the self-displacement mechanism can adjust the geometrical shape of the seismic isolation groove according to the seismic wave frequency, energy transmission of the main seismic frequency band is preferentially blocked, and the self-displacement mechanism plays a role in preventing the seismic isolation groove from being damaged when the seismic isolation groove is extruded. The integrity of the internal structure of the shock insulation groove is effectively guaranteed, and the building around the shock insulation groove is further effectively protected.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and more specifically, it relates to a self-displacing seismic isolation trench system. Background Art

[0002] A seismic isolation trench is a passive seismic resistance technology that protects buildings by cutting off the propagation path of seismic waves. It is particularly suitable for scenarios where site conditions permit and low-cost seismic resistance is required, and is often used in combination with other seismic isolation measures (such as dampers) to form a multi-level defense system. The basic structure of a seismic isolation trench is to excavate a deep trench around or at specific positions of a building, usually with a depth of several meters to more than ten meters. Its width is adjusted according to design requirements, and flexible or energy-absorbing materials such as sand, gravel, foam concrete, rubber particles, etc. are filled in the trench. Some designs may incorporate cavity structures.

[0003] The functions of a seismic isolation trench are as follows: 1. Protect lifeline projects and high-value facilities Necessity: Once facilities such as nuclear power plants, hospitals, and data centers are damaged during an earthquake, it may lead to catastrophic consequences (such as nuclear leakage, paralysis of the medical system, data loss).

[0004] 2. Cope with the amplification effect of soft soil sites Necessity: In soft soil areas (such as alluvial plains and reclamation areas), seismic waves (especially low-frequency components) will be amplified, increasing the risk of building resonance.

[0005] 3. Protection of historical buildings and cultural heritages Necessity: Ancient buildings (such as wooden structures and masonry structures) have poor seismic resistance, and traditional reinforcement may damage their historical appearance.

[0006] 4. Economy and potential for large-scale application Necessity: Traditional seismic isolation technologies (such as rubber bearings and dampers) are costly and difficult to popularize in ordinary buildings or infrastructure.

[0007] 5. Suppress vibration transmission to underground spaces Necessity: Underground structures such as subway tunnels and underground utility tunnels are vulnerable to ground vibrations, leading to structural cracking or equipment failures.

[0008] The applications of a seismic isolation trench are as follows: 1. Protection of important facilities: Buildings with extremely high seismic resistance requirements such as nuclear power plants, hospitals, and data centers.

[0009] Seismic reinforcement of historical buildings or cultural relics.

[0010] 2. Industry and underground engineering: Isolate the vibration transmission of underground structures such as subways and tunnels.

[0011] Reduce the influence of ground vibration on industrial equipment (such as precision instruments).

[0012] 3. Soft soil area: In areas where the soil layer is soft and the seismic wave amplification effect is significant, the isolation trench can effectively reduce the resonance risk.

[0013] Currently, the following problems are likely to occur when using the isolation trench structure in the prior art: During an earthquake, due to the acting force of the earthquake, both sides of the isolation trench are squeezed, so that the structure arranged in the isolation trench is also squeezed, further causing the isolation trench structure to be squeezed and deformed or directly crushed, thereby greatly weakening the shock absorption effect of the isolation trench and increasing the degree of damage to the buildings around the isolation trench. Summary of the Invention

[0014] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a self-displacing isolation trench system.

[0015] To achieve the above purpose, the present invention provides the following technical solutions. The isolation trench is composed of a self-displacing mechanism and an isolation component. The self-displacing mechanism includes a self-displacing component and a reset component. The reset component is arranged on the right side of the self-displacing component, and the self-displacing component is slidably connected inside the reset component; the isolation components are respectively located on the two inner side walls of the isolation trench to form a semi-closed groove, and the self-displacing component is hinged to two relatively arranged isolation components.

[0016] Preferably, the self-displacing component includes multiple groups of positioning seats. Two positioning seats form a group. The outer parts of each group of positioning seats are respectively hinged with a first displacement steel plate and a second displacement steel plate. The first displacement steel plate and the second displacement steel plate are arranged in an up-and-down overlapping manner at the end close to each other. A translation plate is arranged above the overlapping part of the first displacement steel plate and the second displacement steel plate. The bottom of the translation plate is fixedly connected with a plurality of rotating shafts, and the overlapping parts of the first displacement steel plate and the second displacement steel plate are both hinged with the rotating shafts.

[0017] Preferably, the bottom of the translation plate is fixedly connected with a direction control member. The right side of the direction control member is respectively in contact with the left side of the first displacement steel plate and the second displacement steel plate. The direction control member is used to control the rotation direction of the first displacement steel plate and the second displacement steel plate.

[0018] Preferably, the reset assembly includes a fixed seat. At the top and bottom of the inner wall of the fixed seat, a set of reset components are respectively fixedly connected. A travel control member is installed between the two sets of reset components. A chute is formed on the outer arc of the travel control member. One end of the translation plate close to the travel control member slides inside the chute. When the connection between the first displacement steel plate and the second displacement steel plate moves towards the travel control member, the translation plate squeezes the travel control member by the part of its right end sliding inside the chute, causing the travel control member to rotate between the two sets of reset components.

[0019] Preferably, the reset component includes a central shaft. One end of the central shaft is fixed to the top of the inner wall of the fixed seat, and the other end is rotationally connected to the travel control member. A reset member is also sleeved outside the central shaft. The two ends of the reset member are respectively fixedly connected to the inner wall of the travel control member and the top of the inner wall of the fixed seat.

[0020] Preferably, the seismic isolation assembly includes two seismic isolation plates in an "L" shape. Each set of positioning seats are respectively fixed on the two seismic isolation plates, and the seismic isolation plates are placed on the inner wall of the seismic isolation trench.

[0021] Preferably, a plurality of barrier strips are provided on the surfaces of the two seismic isolation plates in contact with the inner wall of the seismic isolation trench, and the side of the barrier strip connected to the seismic isolation plate is higher than the side away from the seismic isolation plate. The barrier strips are used to guide the soil and the like sliding down the inner wall of the seismic isolation trench.

[0022] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the self-displacement mechanism arranged in the seismic isolation trench, when an earthquake occurs, the self-displacement mechanism can be squeezed by the seismic isolation assembly, so that the self-displacement mechanism can adjust the geometric shape of the seismic isolation trench according to the seismic wave frequency, and preferentially block the energy transmission of the main shock frequency band, thereby effectively ensuring the integrity of the internal structure of the seismic isolation trench when the seismic isolation trench is squeezed, and further playing an effective protective role for the buildings around the seismic isolation trench.

[0023] 2. Through the seismic isolation assemblies arranged on both sides of the self-displacement mechanism, when the seismic isolation trench is squeezed by an earthquake, the barrier strips on the seismic isolation assemblies can avoid the collapse of the inner wall of the seismic isolation trench to the greatest extent, thereby ensuring the integrity of the seismic isolation trench and further playing a role in protecting the internal structure of the seismic isolation trench. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 is a schematic diagram of the bottom structure of the self-displacement mechanism of an embodiment of the present invention; Figure 3 is a schematic diagram of the positional relationship between the rotating shaft and the seismic isolation plate of an embodiment of the present invention; Figure 4Schematic diagram of the overall structure of the self-displacing mechanism according to an embodiment of the present invention; Figure 5 Schematic diagram of the connection relationship between the first displacement steel plate and the second displacement steel plate according to an embodiment of the present invention; Figure 6 Schematic diagram of the bottom structure of the translation plate according to an embodiment of the present invention; Figure 7 Schematic diagram of the structure of the stroke control member according to an embodiment of the present invention; Figure 8 Schematic diagram of the structure of the reset member according to an embodiment of the present invention.

[0025] 1. Positioning seat; 2. First displacement steel plate; 3. Second displacement steel plate; 4. Translation plate; 5. Rotating shaft; 6. Direction control member; 7. Fixed seat; 8. Stroke control member; 9. Chute; 10. Central axis; 11. Reset member; 12. Vibration isolation plate; 13. Blocking strip. Detailed implementation manners

[0026] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the described embodiments.

[0027] Embodiment 1: Refer to Figures 1 to 8 For further description of an embodiment of a self-displacing seismic isolation trench system of the present invention.

[0028] A self-displacing seismic isolation trench system, the seismic isolation trench is composed of a self-displacing mechanism and a seismic isolation component. The self-displacing mechanism includes a self-displacing component and a reset component. The reset component is arranged on the right side of the self-displacing component, and the self-displacing component is slidably connected inside the reset component; the seismic isolation components are respectively located on the two inner side walls of the seismic isolation trench to form a semi-closed trench, and the self-displacing component is hinged to two relatively arranged seismic isolation components.

[0029] The self-displacing component includes multiple groups of positioning seats 1. Two positioning seats 1 are in a group. The outer parts of each group of positioning seats 1 are respectively hinged with a first displacement steel plate 2 and a second displacement steel plate 3. The ends of the first displacement steel plate 2 and the second displacement steel plate 3 that are close to each other are arranged in an up-and-down overlapping manner. Above the overlapping part of the first displacement steel plate 2 and the second displacement steel plate 3, there is a translation plate 4. The bottom of the translation plate 4 is fixedly connected with a plurality of rotating shafts 5. The overlapping parts of the first displacement steel plate 2 and the second displacement steel plate 3 are both hinged to the rotating shafts 5.

[0030] The bottom of the translation plate 4 is fixedly connected with a direction control member 6. The right side of the direction control member 6 is in contact with the left side of the first displacement steel plate 2 and the second displacement steel plate 3 respectively. The direction control member 6 is used to control the rotation direction of the first displacement steel plate 2 and the second displacement steel plate 3.

[0031] The reset component includes a fixed seat 7. At the top and bottom of the inner wall of the fixed seat 7, a set of reset components are respectively and fixedly connected. A stroke control member 8 is installed between the two sets of reset components. A chute 9 is formed on the outer arc of the stroke control member 8. One end of the translation plate 4 close to the stroke control member 8 slides inside the chute 9. When the connection between the first displacement steel plate 2 and the second displacement steel plate 3 moves towards the stroke control member 8, the translation plate 4 presses the stroke control member 8 by the part of its right end sliding inside the chute 9, causing the stroke control member 8 to rotate between the two sets of reset components. Specifically refer to Figure 1 , Figure 4 , Figure 7 and Figure 8 , in the figure, the stroke control member 8 is generally in the shape of a "water droplet". Considering the difficulty of actual production processes, the shape of the stroke control member 8 is not strictly limited here. Therefore, the shape of the stroke control member 8 can also be circular or oval.

[0032] The reset component includes a central shaft 10. One end of the central shaft 10 is fixed to the top of the inner wall of the fixed seat 7, and the other end is rotationally connected to the stroke control member 8. A reset member 11 is also sleeved outside the central shaft 10. Two ends of the reset member 11 are respectively fixedly connected to the inner wall of the stroke control member 8 and the top of the inner wall of the fixed seat 7. The reset member 11 can be a large buffer spring in the prior art. The inside of the reset member 11 is a rigid material with support force and resilience, and the outside of the rigid material is coated with fatigue-resistant silicone rubber material. Silicone rubber has good elasticity and fatigue resistance, can maintain a stable reset ability under long-term seismic reciprocating action, and has a relatively low cost, being easy to obtain and process. At the same time, to enhance its protection performance, in addition to sleeving a telescopic sleeve outside, a polyurethane coating with wear-resistant and anti-aging properties can also be coated on the surface of the silicone rubber to further extend the service life of the reset member 11 and reduce maintenance costs.

[0033] The seismic isolation component includes two seismic isolation plates 12 in an "L" shape. Each set of positioning seats 1 are respectively fixed on the two seismic isolation plates 12, and the seismic isolation plates 12 are placed on the inner wall of the seismic isolation trench. The seismic isolation plate 12 is made of a high-strength and lightweight fiber-reinforced composite material, such as carbon fiber-reinforced epoxy composite material. This material not only has high strength and stiffness and can effectively withstand seismic extrusion, but also has the characteristic of light weight, being convenient for construction and installation. In addition, the fiber-reinforced composite material also has good corrosion resistance, can adapt to different geological environments, and reduces the risk of structural damage caused by corrosion.

[0034] On the surfaces of the two isolation plates 12 in contact with the inner wall of the isolation trench, a plurality of barrier strips 13 are provided, and the side of the barrier strip 13 connected to the isolation plate 12 is higher than the side away from the isolation plate 12. The barrier strip 13 is used to guide the soil and the like sliding down the inner wall of the isolation trench; For specific reference Figure 1 and Figure 2 , the two isolation plates 12 are arranged in a relative state, the barrier strips 13 are respectively arranged on the opposite sides of the two isolation plates 12, and the length and height of the isolation plate 12 can be adjusted according to the actual use situation. No specific limitation is made here; and the isolation plate 12 can be provided with its own openings according to the materials filled in the actual isolation trench to increase the overall air permeability of the isolation trench and improve the moisture removal effect; The installation method of the positioning seat 1 and the vibration isolation plate 12 is as follows: Corresponding bolt holes are pre-processed on the positioning seat 1 and the isolation plate 12, and high-strength bolts are used for connection. This connection method is not only simple to operate, and construction workers can complete the installation without special skills, but also convenient for disassembling and replacing parts, and is more convenient during later maintenance and repair. At the same time, to ensure the firmness of the connection, elastic washers and lock nuts can be added at the bolt connection to prevent the bolts from loosening due to earthquake vibration The top view of the stroke control member 8 is generally in the shape of a water droplet, and the side with a larger arc contacts the translation member. The setting of the stroke control member 8 is used to control the movement range of the translation member; For specific reference Figure 3 and Figure 7 , a telescopic sleeve (not marked in the figure) is sleeved outside the reset member 11, and this sleeve is used to protect the reset member 11 to prevent the reset member 11 from being stuck by sand and gravel; The setting of the direction control member 6 is used to control the movement direction of the translation member, so that the translation member always reciprocates in the direction close to the stroke control member 8; There is a certain gap between the two isolation plates 12. The purpose is that when the soil humidity is high, the moisture inside the isolation trench 1 can be quickly drained, thereby avoiding the corrosion of the components inside the isolation trench 1; The filling materials inside the isolation trench vary according to different soil environments. When the soil environment is relatively soft, a mixture of high-damping rubber particles and foam concrete can be selected for filling to enhance the energy absorption effect of the isolation trench, improve the overall vibration isolation performance, and optimize the applicability of the isolation trench in various complex geological environments; The installation steps of the displacement mechanism and the overall vibration isolation assembly are as follows: First.

[0035] Working principle: Step 1: When the seismic isolation trench is squeezed during an earthquake, both sides of the inner wall of the seismic isolation trench synchronously squeeze the seismic isolation plates 12. After being squeezed, the two seismic isolation plates 12 move synchronously in opposite directions. At the same time, the connection part of the first displacement steel plate 2 and the second displacement steel plate 3 moves towards the stroke control part 8. As the positions of the first displacement steel plate 2 and the second displacement steel plate 3 change, the translation plate 4 moves towards the stroke control part 8. At the same time, the translation plate 4 squeezes the stroke control part 8, causing the stroke control part 8 to rotate around the central axis 10 as the center point.

[0036] Step 2: During the rotation of the stroke control part 8, the reset part 11 is twisted until the earthquake stops.

[0037] Step 3: After the earthquake stops, the reset part 11 that has been twisted immediately returns to its original state through its own tension. During the process of the reset part 11 rotating back to its original position, it drives the stroke control part 8 to rotate synchronously. While the stroke control part 8 rotates, it also squeezes the translation part, causing it to move away from the stroke control part 8 until the first displacement steel plate 2 and the second reset steel plate are transformed into a straight line. Finally, the seismic isolation plate 12 fits against the inner wall of the seismic isolation trench.

[0038] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as a limitation of the present invention itself. Various changes can be made in its form and details without departing from the spirit and scope of the present invention defined by the appended claims.

Claims

1. A self-displacing seismic isolation trench system, characterized in that, The seismic isolation trench consists of a self-displacement mechanism and a seismic isolation component. The self-displacement mechanism includes a self-displacement component and a reset component. The reset component is arranged on the right side of the self-displacement component, and the self-displacement component is slidably connected inside the reset component. The seismic isolation components are respectively located on the two inner side walls of the seismic isolation trench to form a semi-closed groove, and the self-displacement component is hinged to two oppositely arranged seismic isolation components.

2. The self-displacing seismic isolation trench system according to claim 1, wherein The self-displacement component includes multiple groups of positioning seats (1). Two positioning seats (1) form a group. The outer parts of each group of positioning seats (1) are respectively hinged with a first displacement steel plate (2) and a second displacement steel plate (3). The first displacement steel plate (2) and the second displacement steel plate (3) are arranged in an up-and-down overlapping manner at the end close to each other. A translation plate (4) is arranged above the overlapping part of the first displacement steel plate (2) and the second displacement steel plate (3). The bottom of the translation plate (4) is fixedly connected with multiple rotating shafts (5). The overlapping parts of the first displacement steel plate (2) and the second displacement steel plate (3) are both hinged with the rotating shafts (5).

3. The self-displacing seismic isolation trench system according to claim 1, characterized in that The bottom of the translation plate (4) is fixedly connected with a direction control member (6). The right side of the direction control member (6) is respectively in contact with the left side of the first displacement steel plate (2) and the second displacement steel plate (3). The direction control member (6) is used to control the rotation direction of the first displacement steel plate (2) and the second displacement steel plate (3).

4. The self-displacing seismic isolation trench system according to claim 1, characterized in that, The reset component includes a fixed seat (7). At the top and bottom of the inner wall of the fixed seat (7), a group of reset members are respectively fixedly connected. A stroke control member (8) is installed between the two groups of reset members. A chute (9) is opened on the outer arc of the stroke control member (8). One end of the translation plate (4) close to the stroke control member (8) slides inside the chute (9). When the connection part of the first displacement steel plate (2) and the second displacement steel plate (3) moves towards the stroke control member (8), the translation plate (4) squeezes the stroke control member (8) through the part that slides inside the chute (9) at its right end, causing the stroke control member (8) to rotate between the two groups of reset members.

5. The self-displacing seismic isolation trench system according to claim 1, characterized in that The reset member includes a central shaft (10). One end of the central shaft (10) is fixed to the top of the inner wall of the fixed seat (7), and the other end is rotatably connected to the stroke control member (8). A reset member (11) is also sleeved outside the central shaft (10). The two ends of the reset member (11) are respectively fixedly connected to the inner wall of the stroke control member (8) and the top of the inner wall of the fixed seat (7).

6. The self-displacing seismic isolation trench system according to claim 1, wherein The seismic isolation component includes two "L"-shaped seismic isolation plates (12). Each group of positioning seats (1) is respectively fixed on the two seismic isolation plates (12). The seismic isolation plates (12) are placed on the inner wall of the seismic isolation trench.

7. The self-displacing seismic isolation trench system according to claim 1, characterized in that A plurality of barrier strips (13) are arranged on the surfaces of the two seismic isolation plates (12) in contact with the inner wall of the seismic isolation trench. And the side of the barrier strip (13) connected to the seismic isolation plate (12) is higher than the side away from the seismic isolation plate (12). The barrier strip (13) is used to guide the soil and the like sliding down from the inner wall of the seismic isolation trench.

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