Anti-seismic gate pier

Abstract

The anti-seismic gate pier comprises a gate pier body and a self-resetting energy dissipation assembly, and a gate groove matched with a gate is formed in the gate pier body; the self-resetting energy dissipation assembly is embedded in the gate pier body and arranged around the gate groove, the self-resetting energy dissipation assembly comprises a shape memory alloy part, and the shape memory alloy part is suitable for generating phase change energy dissipation under the action of a strong earthquake and restoring the initial state after the earthquake. According to the anti-seismic gate pier, the self-resetting energy dissipation assembly is arranged at the key stress part of the gate groove, the special phase change characteristic of the shape memory alloy part is utilized, seismic energy is absorbed and dissipated under the action of a strong seismic load, the dynamic response of the gate pier body can be effectively attenuated, and therefore the anti-seismic performance of the anti-seismic gate pier is greatly improved; based on the shape memory effect of the shape memory alloy part, the original geometrical shape can be automatically recovered after an earthquake, the self-resetting function after the earthquake is achieved, the earthquake resistance and function recoverability of the gate structure under the action of a strong earthquake can be improved, and the operation safety of hydraulic engineering facilities is improved.

Description

Technical Field

[0001] This application relates to the technical field of earthquake resistance in water conservancy projects, and particularly to an earthquake-resistant pier. Background Art

[0002] When traditional piers are coping with earthquake shocks, their ability to absorb and dissipate seismic energy is particularly insufficient, making the pier structure extremely vulnerable to damage, and even serious damages such as cracks and fractures may occur. More critically, once deformed during an earthquake, traditional piers cannot automatically return to their initial state by themselves; this deformation persists after the earthquake, seriously affecting the normal opening and closing operations of the gates, resulting in a decline in the operating accuracy of the gate system, seriously endangering the overall safe operation of water conservancy projects, increasing the risk of major safety accidents such as dam breaks and floods, and posing a serious threat to the lives and property of people downstream. Summary of the Invention

[0003] This application aims to solve at least one of the technical problems existing in the prior art. For this reason, the purpose of this application is to propose an earthquake-resistant pier that absorbs and dissipates seismic energy through shape memory alloy materials under strong seismic loads, and can automatically restore its initial geometric shape after an earthquake, realizing the self-resetting function of the structure after an earthquake, and significantly improving the seismic resistance and functional recoverability of the gate structure under strong earthquakes.

[0004] This application proposes an earthquake-resistant pier, which includes a pier body and a self-resetting energy dissipation component. The pier body is formed with a gate slot for cooperating with the gate; the self-resetting energy dissipation component is embedded in the pier body and arranged around the gate slot. The self-resetting energy dissipation component includes a shape memory alloy element, and the shape memory alloy element is adapted to undergo a phase change to dissipate energy during a strong earthquake and restore its initial shape after the earthquake.

[0005] According to the earthquake-resistant pier of this application, by arranging a self-resetting energy dissipation component based on a shape memory alloy element at the key stress-bearing part of the gate slot of the gate, and utilizing the unique phase change characteristics of the shape memory alloy element, it absorbs and dissipates seismic energy under strong seismic loads, effectively attenuating the dynamic response of the pier body, thereby greatly improving the seismic performance of the earthquake-resistant pier. Based on the shape memory effect of the shape memory alloy element, this application can automatically restore its initial geometric shape after an earthquake, realizing the self-resetting function of the structure after an earthquake, ensuring the operating accuracy of the gate system, reducing maintenance costs and downtime, and improving the operating efficiency and safety of water conservancy projects; further, the use of the shape memory alloy element also significantly enhances the functional recoverability of the earthquake-resistant pier. Even after being subjected to a strong earthquake, the gate structure can quickly restore its normal function, ensuring the long-term stable operation of water conservancy projects and reducing the risk of secondary disasters caused by structural damage.

[0006] According to some embodiments of this application, the shape memory alloy element extends along the extension direction of the gate slot.

[0007] According to some embodiments of the present application, a plurality of shape memory alloy members are configured, and the plurality of shape memory alloy members are arranged at intervals around the door groove.

[0008] According to some embodiments of the present application, the self-resetting energy dissipation component further includes a limiting plate, the limiting plate is arranged perpendicular to the shape memory alloy member, and the shape memory alloy member penetrates through the limiting plate and is limit-connected to the limiting plate.

[0009] According to some embodiments of the present application, a plurality of limiting plates are configured, and the plurality of limiting plates are arranged at intervals along the extending direction of the shape memory alloy member.

[0010] According to some embodiments of the present application, at least one limiting plate is arranged on the upper surface of the pier body.

[0011] According to some embodiments of the present application, the earthquake-resistant pier further includes a gate chamber bottom plate and a pre-embedded base. The gate chamber bottom plate is arranged at the bottom of the pier body; the pre-embedded base is embedded in the gate chamber bottom plate, and the shape memory alloy member is connected to the pre-embedded base.

[0012] According to some embodiments of the present application, the limiting plate is formed with an avoidance groove, and the avoidance groove accommodates the door groove in a plane perpendicular to the door groove.

[0013] According to some embodiments of the present application, the shape memory alloy member is configured as a shape memory alloy steel cable.

[0014] According to some embodiments of the present application, the self-resetting energy dissipation component is pre-embedded inside the pier body during the construction of the pier body.

[0015] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic structural diagram of an earthquake-resistant pier according to some embodiments of the present application;

[0018] Figure 2 is a structural sectional view of an earthquake-resistant pier according to some embodiments of the present application;

[0019] Figure 3 is a schematic structural diagram of a self-resetting energy dissipation component according to some embodiments of the present application.

[0020] Reference numerals:

[0021] Pier body 1; Door groove 2; Gate 3;

[0022] The bottom slab 4 of the sluice chamber; the self - resetting energy - dissipating component 5; the shape memory alloy piece 501; the limiting plate 502; the embedded base 503. Detailed implementation manners

[0023] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application.

[0024] Below, refer to Figures 1 - 3 Describe the earthquake - resistant sluice pier according to the embodiments of the present application.

[0025] The present application provides an earthquake - resistant sluice pier, which includes a sluice pier body 1 and a self - resetting energy - dissipating component 5. The sluice pier body 1 is formed with a gate slot 2 for cooperating with a gate 3; the self - resetting energy - dissipating component 5 is embedded in the sluice pier body 1 and arranged around the gate slot 2. The self - resetting energy - dissipating component 5 includes a shape memory alloy piece 501, and the shape memory alloy piece 501 is adapted to undergo a phase change to dissipate energy under the action of a strong earthquake and restore its initial shape after the earthquake.

[0026] For the earthquake - resistant sluice pier according to the present application, when the earthquake - resistant sluice pier is in the normal working condition, the sluice pier body 1, the gate slot 2 and the gate 3 are in the reference working state, and the shape memory alloy piece 501 of the self - resetting energy - dissipating component 5 maintains its initial geometric shape; when the earthquake - resistant sluice pier is subjected to an earthquake, the self - resetting energy - dissipating component 5 absorbs earthquake energy through the phase - change characteristic of the shape memory alloy piece 501. The shape memory alloy piece 501 is subjected to tension to generate stress, and dissipates energy through the hysteresis effect to reduce the influence of the earthquake on the sluice pier body 1 and reduce the deformation of the sluice pier body 1 and the gate slot 2; after the earthquake activity stops, the shape memory alloy piece 501 uses the shape memory effect to generate a directional recovery stress, driving the sluice pier body 1 and the gate slot 2 to return to the initial geometric shape, realizing the automatic calibration of the geometric accuracy of the gate track system, eliminating the opening and closing jamming caused by residual deformation, ensuring that the gate system can perform normal opening and closing operations, and playing a role in preliminary post - earthquake repair for subsequent further evaluation and repair of the gate structure condition.

[0027] According to the aseismic pier of the present application, by arranging a self-resetting energy dissipation component 5 based on a shape memory alloy component 501 at the key stress-bearing part of the gate slot 2, using the unique phase transformation characteristics of the shape memory alloy component 501, the seismic energy is absorbed and dissipated under the action of strong earthquake loads, effectively attenuating the dynamic response of the pier body 1, thereby greatly improving the seismic performance of the aseismic pier. Based on the shape memory effect of the shape memory alloy component 501, the present application can automatically restore the initial geometric shape after an earthquake, realize the post-earthquake self-resetting function of the structure, ensure the operation accuracy of the gate system, reduce the maintenance cost and downtime, and improve the operation efficiency and safety of the water conservancy project; further, the use of the shape memory alloy component 501 also significantly enhances the functional recoverability of the aseismic pier. Even after being subjected to a strong earthquake, the gate structure can quickly restore its normal function, ensuring the long-term stable operation of the water conservancy project and reducing the risk of secondary disasters caused by structural damage.

[0028] According to some embodiments of the present application, the shape memory alloy component 501 is arranged along the extending direction of the gate slot 2. In this embodiment, the shape memory alloy component 501 extends along the extending direction of the gate slot 2, which can ensure that the shape memory alloy component 501 deforms along the main stress direction during an earthquake, and fully exerts its superelastic energy dissipation ability.

[0029] According to some embodiments of the present application, the shape memory alloy component 501 is configured as multiple, and the multiple shape memory alloy components 501 are arranged at intervals around the gate slot 2. In this embodiment, arranging multiple shape memory alloy components 501 around the gate slot 2 can optimize the stress distribution. Through the collaborative work of the multiple shape memory alloy components 501, the seismic energy is dispersed and consumed, reducing the risk of local damage and improving the seismic effect.

[0030] In some embodiments, around the gate slot 2, the shape memory alloy component 501 can be arranged in multiple layers at intervals to further improve the seismic effect.

[0031] According to some embodiments of the present application, the self-resetting energy dissipation component 5 further includes a limiting plate 502. The limiting plate 502 is arranged perpendicular to the shape memory alloy component 501, and the shape memory alloy component 501 penetrates through the limiting plate 502 and is in limiting connection with the limiting plate 502. In this embodiment, by arranging the limiting plate 502, it plays a role in restricting the displacement and anchoring of the shape memory alloy steel cable 501, avoiding excessive deformation of the shape memory alloy component 501. Further, a displacement constraint interface is formed between the limiting plate 502 and the gate slot 2, and the vibration energy can be further attenuated through the friction energy dissipation mechanism, and it collaborates with the shape memory alloy component 501 to dissipate energy. Furthermore, in the embodiment where multiple shape memory alloy components 501 are arranged, the limiting plate 502 can play a role in connecting the multiple shape memory alloy components 501, combining the multiple shape memory alloy components 501 to form an energy dissipation system and improving the seismic effect.

[0032] According to some embodiments of the present application, a plurality of limiting plates 502 are configured, and the plurality of limiting plates 502 are arranged at intervals along the extending direction of the shape memory alloy member 501. In this embodiment, by providing a plurality of limiting plates 502, the restraint effect on the shape memory alloy member 501 can be improved, and the energy dissipation effect of the energy dissipation system can be enhanced.

[0033] According to some embodiments of the present application, at least one limiting plate 502 is arranged on the upper surface of the pier body 1. In this embodiment, by arranging a limiting plate 502 on the upper surface of the pier body 1, it is convenient to anchor the shape memory alloy member 501, and at the same time, the shape memory alloy member 501 can be tensioned.

[0034] According to some embodiments of the present application, the seismic pier further includes a chamber floor 4 and an embedded base 503. The chamber floor 4 is arranged at the bottom of the pier body 1; the embedded base 503 is embedded in the chamber floor 4, and the shape memory alloy member 501 is connected to the embedded base 503. The shape memory alloy member 501 extends out of the bottom of the pier body 1 and extends into the chamber floor 4 and is connected to the embedded base 503. In this embodiment, the embedded base 503 is embedded in the chamber floor 4 for fixing the shape memory alloy member 501 and anchoring the shape memory alloy member 501. Specifically, the embedded base 503 cooperates with the elastic deformation of the shape memory alloy member 501 to limit the displacement amplitude of the pier body 1, ensuring that the structural deformation amount is lower than the critical failure threshold. Among them, the chamber floor 4 is located at the bottom of the pier body 1 and the gate 3, providing support for the entire seismic pier.

[0035] In the above embodiments, the shape memory alloy member 501, the limiting plate 502, and the embedded base 503 form a rigid restraint system, which can ensure the normal opening and closing function of the gate system.

[0036] According to some embodiments of the present application, the limiting plate 502 is formed with an avoidance groove, and the avoidance groove encloses the gate groove 2 in a plane perpendicular to the gate groove 2. In this embodiment, the limiting plate 502 achieves the surrounding effect on the gate groove 2 by providing the avoidance groove, which can improve the shape retention effect of the gate groove 2 and reduce the deformation risk of the gate groove 2.

[0037] According to some embodiments of the present application, the shape memory alloy member 501 is configured as a shape memory alloy steel cable. In this embodiment, using a shape memory alloy steel cable can improve the deformation ability of the shape memory alloy member 501. Further, in some embodiments, the shape memory alloy member 501 is configured as a shape memory alloy steel cable formed by stranding multiple steel wires. When the shape memory alloy steel cable deforms, through the friction between the individual steel wires, the energy dissipation effect can be further achieved, the structural stress can be dispersed, and the seismic effect of the seismic pier can be enhanced.

[0038] According to some embodiments of the present application, the limiting plate 502 and the embedded base 503 are also made of steel to achieve higher structural strength and ensure seismic performance.

[0039] According to some embodiments of the present application, the self - resetting energy - dissipating component 5 is pre - placed inside the pier body 1 during the construction of the pier body 1. In this embodiment, during the construction of the pier body 1, the self - resetting energy - dissipating component 5 is embedded inside the structure of the pier body 1, which can eliminate the work such as opening holes for installing the self - resetting energy - dissipating component 5 after the pier body 1 is built. At the same time, during the construction, the self - resetting energy - dissipating component 5 and the pier body 1 are fixed as a whole, which can better exert the restraint effect of the self - resetting energy - dissipating component 5 on the pier body 1, reduce the influence of the earthquake on the shape of the pier body 1, ensure the operation accuracy of the gate system after the earthquake, and improve the operation efficiency and safety of the water conservancy project.

[0040] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0041] In the description of the present application, the "first feature" and "second feature" may include one or more of such features.

[0042] In the description of the present application, the meaning of "a plurality of" is two or more.

[0043] In the description of the present application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features.

[0044] In the description of the present application, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature.

[0045] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0046] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An earthquake-resistant pier, characterized in that, Comprising: The pier body, and a gate slot is formed on the pier body for cooperating with a gate; A self - resetting energy - dissipating component, which is embedded in the pier body and arranged around the gate slot. The self - resetting energy - dissipating component includes a shape - memory alloy member, and the shape - memory alloy member is adapted to undergo a phase change to dissipate energy under the action of a strong earthquake and recover its initial shape after the earthquake.

2. The aseismatic pier according to claim 1, characterized in that, The shape - memory alloy member extends along the extending direction of the gate slot.

3. The earthquake-resistant pier according to claim 1, characterized in that, The shape - memory alloy members are configured to be multiple, and the multiple shape - memory alloy members are arranged at intervals around the gate slot.

4. The seismic pier according to claim 1, wherein, The self - resetting energy - dissipating component further includes: A limiting plate, which is arranged perpendicular to the shape - memory alloy member. The shape - memory alloy member penetrates through the limiting plate and is in a limiting connection with the limiting plate.

5. The aseismic pier according to claim 4, characterized in that, The limiting plates are configured to be multiple, and the multiple limiting plates are arranged at intervals along the extending direction of the shape - memory alloy member.

6. The aseismic pier according to claim 5, characterized in that, At least one of the limiting plates is arranged on the upper surface of the pier body.

7. The aseismatic pier according to claim 6, wherein It further includes: A lock chamber floor slab, which is arranged at the bottom of the pier body; A pre - embedded base, which is embedded in the lock chamber floor slab, and the shape - memory alloy member is connected to the pre - embedded base.

8. The aseismic pier according to claim 4, characterized in that, The limiting plate is formed with an avoidance groove, and the avoidance groove encloses the gate slot in a plane perpendicular to the gate slot.

9. The seismic pier according to claim 1, characterized in that, The shape - memory alloy member is configured as a shape - memory alloy steel cable.

10. The seismic pier according to claim 1, characterized in that, The self - resetting energy - dissipating component is pre - placed inside the pier body during the construction of the pier body.

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