Novel seismic mitigation and isolation support

Abstract

The utility model discloses a novel seismic mitigation and isolation support, which belongs to the technical field of civil engineering, can obviously reduce the shaking amplitude of the support under the action of external force, and can automatically restore to the original position after shaking due to the introduction of an SMA (shape memory alloy) rope, so that the stability and the seismic isolation performance of the support are improved, and the service life of the support is prolonged. The novel shock insulation rubber support has high environmental adaptability and can keep stable performance under different climate and geological conditions, so that the novel shock insulation rubber support can be widely applied to various complex environments, the support has better stability and shock insulation effect, damage and abrasion caused by external force can be reduced, the service life of the support is prolonged, and the service life of the support is prolonged. Therefore, the service life of the support is prolonged, the maintenance and replacement cost is reduced, the SMA is applied to the shock insulation rubber support, an innovative design concept is achieved, the performance of the support is improved through the combination, and a new thought and direction are provided for development of the shock insulation technology.

Description

Technical Field

[0001] The utility model relates to a novel vibration-isolating rubber bearing used in building structures and bridge engineering, in particular to a novel vibration-isolating bearing, belonging to the technical field of civil engineering. Background Art

[0002] In recent years, with the frequent occurrence of natural disasters around the world, especially earthquake disasters, huge losses have been caused to human society.

[0003] In building structures and bridge engineering, how to improve earthquake resistance and reduce disaster losses has become a focus of attention in the engineering community.

[0004] As an important component of seismic isolation technology, traditional rubber bearings, through their good elasticity and energy absorption capacity, can reduce the impact of external forces such as earthquakes on structures to a certain extent.

[0005] However, as the requirements for structural seismic performance continue to increase, the limitations of traditional rubber bearings are gradually becoming apparent.

[0006] Specifically, traditional rubber bearings often exhibit large shaking amplitudes and insufficient recovery capabilities when faced with high-intensity earthquakes or continuous external forces.

[0007] This shaking may not only increase the risk of structural damage, but also affect the stability and service life of the structure.

[0008] In addition, the shock absorption effect of traditional rubber bearings is also limited by their material and structural design, and it is difficult to meet the seismic performance requirements of all engineering structures.

[0009] In order to overcome the shortcomings of traditional rubber bearings, an SMA memory alloy shock absorption system is added.

[0010] Shape memory alloy (SMA), as a new material with unique shape memory effect and good mechanical properties, has gradually attracted the attention of the engineering community.

[0011] After being deformed by external force, SMA material can automatically return to its original shape under certain conditions. This property makes it possible to develop new seismic isolation bearings.

[0012] Deficiencies in the existing technology:

[0013] 1- Limited shock absorption effect: Although traditional rubber bearings can reduce the impact of external forces such as earthquakes on structures to a certain extent, their shock absorption effect is limited and they are difficult to cope with high-intensity earthquakes or continuous external forces.

[0014] 2- Lack of automatic reset function: After being subjected to external force, traditional rubber bearings often cannot automatically return to their original position, causing the bearings to be in an offset state for a long time, thereby affecting the overall stability and service life of the structure.

[0015] 3-Limited scope of application: Traditional rubber bearings have significant differences in performance under different geological conditions and environmental factors, making it difficult to meet the seismic requirements of all engineering structures.

[0016] Therefore, a new type of seismic isolation bearing is needed to improve the above-mentioned deficiencies. Utility Model Content

[0017] The main purpose of the utility model is to provide a novel shock-absorbing and isolating bearing.

[0018] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0019] A new type of seismic isolation bearing includes a rubber bearing, an external connecting steel plate, a shear piece, a bolt, a shape memory alloy (SMA) memory metal rope and a fixing device. The lower end of the upper connecting plate and the upper end of the lower connecting plate of the rubber bearing are respectively provided with fixing devices. The fixing devices are used to install and fix the shape memory alloy (SMA) memory metal rope to form an SMA memory alloy shock absorption system.

[0020] Preferably, the shape memory alloy (SMA) memory metal rope is firmly connected to the upper connecting plate and the lower connecting plate of the rubber support through a fixing device.

[0021] Preferably, the shape memory alloy (SMA) memory metal rope can be reset after being deformed by an external force.

[0022] Preferably, the securing means comprises a clamp and a connector for securing the SMA rope.

[0023] Preferably, the rubber bearing, the external connection steel plate, the shear piece and the bolt are used in combination.

[0024] Preferably, the outer end of the outer connecting steel plate is installed with a shape memory alloy (SMA) memory metal rope, and the shape memory alloy (SMA) memory metal rope is a folded connection structure.

[0025] Beneficial technical effects of the utility model:

[0026] The utility model provides a new type of shock-absorbing and isolating support.

[0027] 1- Enhanced seismic isolation effect of the bearing: By combining ordinary rubber bearings with shape memory alloy (SMA) memory metal ropes, the present invention can significantly reduce the swing amplitude of the bearing when subjected to external forces. The introduction of SMA memory alloy ropes enables the bearing to automatically return to its original position after shaking, thereby improving the stability and seismic isolation performance of the bearing.

[0028] 2-Automatic reset function: The new seismic isolation rubber bearing of the present invention has strong environmental adaptability and can maintain stable performance under different climatic and geological conditions, which enables it to be widely used in various complex environments.

[0029] 3- Extended service life: The bearing in the present invention has better stability and seismic isolation effect, which can reduce damage and wear caused by external forces, thereby extending the service life of the bearing and reducing maintenance and replacement costs.

[0030] 4-Innovative design concept: The present invention applies SMA memory alloy to seismic isolation rubber bearings, which is an innovative design concept. This combination not only improves the performance of the bearings, but also provides new ideas and directions for the development of seismic isolation technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of a novel seismic isolation support according to a preferred embodiment of the present invention;

[0032] Figure 2 It is a top view of a preferred embodiment of a new type of seismic isolation bearing according to the present utility model.

[0033] In the figure: 1. Rubber bearing; 2. External connecting steel plate; 3. Shear member; 4. Bolt; 5. Shape memory alloy (SMA) memory metal rope; 6. Fixing device. DETAILED DESCRIPTION

[0034] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is described in further detail below with reference to embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0035] like Figure 1 - Figure 2As shown, a novel shock-absorbing and isolating bearing provided in this embodiment includes a rubber bearing (1), an external connecting steel plate (2), a shear member (3), a bolt (4), a shape memory alloy (SMA) memory metal rope (5) and a fixing device (6). The lower end of the upper connecting plate and the upper end of the lower connecting plate of the rubber bearing (1) are respectively provided with a fixing device (6), and the fixing device (6) is used to install and fix the shape memory alloy (SMA) memory metal rope (5) to form an SMA memory alloy shock-absorbing system.

[0036] A shape memory alloy (SMA) memory metal rope (5) is firmly connected to the upper connecting plate and the lower connecting plate of the rubber support (1) through a fixing device (6).

[0037] The shape memory alloy (SMA) memory metal rope (5) can be reset after being deformed by an external force.

[0038] The fixing device (6) comprises a clamp and a connector for fixing the SMA rope.

[0039] The rubber support (1), the external connection steel plate, the shearing piece (3) and the bolt (4) are used in conjunction with each other.

[0040] A shape memory alloy (SMA) memory metal rope (5) is installed at the outer end of the external connection steel plate (2), and the shape memory alloy (SMA) memory metal rope (5) is a folding connection structure.

[0041] like Figure 1 - Figure 2 As shown, the working process of a new type of seismic isolation bearing provided by this embodiment is as follows: during installation, the SMA shape memory alloy rope 5 is stretched to a critical deformation state. When the rubber bearing 1 is shaken by an external force (such as an earthquake wave), the eight SMA memory alloy ropes 5 will deform accordingly, absorb and dissipate part of the energy, thereby effectively reducing the shaking amplitude of the bearing. Due to the memory effect of SMA, when the external force disappears, the rope can automatically return to its original shape and drive the rubber bearing 1 to reset, significantly improving the stability and seismic isolation performance of the bearing.

[0042] Example

[0043] like Figure 1 - Figure 2As shown, the rubber support (1) is respectively provided with external connection steel plates (2) on the upper and lower sides, a shearing piece (3) is provided between the rubber support (1) and the external connection steel plate (2), a bolt (4) is provided at the outer end of the external connection steel plate (2), and shape memory alloy (SMA) memory metal ropes (5) are cross-connected on both sides of the external connection steel plate (2), and the shape memory alloy (SMA) memory metal ropes (5) are fixedly connected to the external connection steel plate (2) via a fixing device (6);

[0044] During installation, the SMA shape memory alloy rope 5 is stretched to a critical deformation state. When the rubber bearing 1 is shaken by external force (such as earthquake waves), the eight SMA shape memory alloy ropes 5 will deform accordingly, absorbing and dissipating part of the energy, thereby effectively reducing the shaking amplitude of the bearing. Due to the memory effect of SMA, when the external force disappears, the rope can automatically return to its original shape and drive the rubber bearing 1 to reset, significantly improving the stability and seismic isolation performance of the bearing.

[0045] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present invention within the scope disclosed by the present invention, which falls within the protection scope of the present invention.

Claims

1. A new type of seismic isolation bearing, characterized by: The invention comprises a rubber support (1), an external connection steel plate (2), a shearing piece (3), a bolt (4), a shape memory alloy (SMA) memory metal rope (5) and a fixing device (6). The fixing device (6) is respectively provided at the lower end of the upper connection plate and the upper end of the lower connection plate of the rubber support (1). The fixing device (6) is used to install and fix the shape memory alloy (SMA) memory metal rope (5) to form an SMA memory alloy shock absorption system.

2. The novel seismic isolation bearing according to claim 1 is characterized in that: A shape memory alloy (SMA) memory metal rope (5) is firmly connected to the upper connecting plate and the lower connecting plate of the rubber support (1) through a fixing device (6).

3. The novel seismic isolation bearing according to claim 2 is characterized in that: The shape memory alloy (SMA) memory metal rope (5) can be reset after being deformed by an external force.

4. The novel seismic isolation bearing according to claim 3 is characterized in that: The fixing device (6) comprises a clamp and a connector for fixing the SMA rope.

5. The novel seismic isolation bearing according to claim 4 is characterized in that: The rubber support (1), the external connection steel plate, the shearing piece (3) and the bolt (4) are used in conjunction with each other.

6. The novel seismic isolation bearing according to claim 5 is characterized in that: A shape memory alloy (SMA) memory metal rope (5) is installed at the outer end of the external connection steel plate (2), and the shape memory alloy (SMA) memory metal rope (5) is a folding connection structure.

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