CN112982730B - Self-resetting wall with tuning-swinging-friction composite grading energy consumption function - Google Patents

Abstract

The invention discloses a self-resetting wall body with a tuning-swing-friction composite graded energy dissipation function. , arc friction energy dissipation device together. The bottom of the prefabricated wall is hinged through the sliding hinge support and the lateral stiffness is provided by the air spring. By adjusting the lateral stiffness provided by the air spring, the rocking frequency of the prefabricated wall is controlled near the frequency of the main structure, so as to play the role of energy dissipation and shock absorption. When the seismic action is small, the tuned mass damper composed of prefabricated walls performs energy dissipation and vibration damping. When the seismic action is large, while the prefabricated wall is swaying and dissipating energy, the friction plates in the arc-shaped friction energy dissipation device come into contact with each other and begin to play the role of friction energy dissipation. The invention can not only realize the purpose of dissipating the seismic energy in stages and reducing the structural response under the action of earthquake, but also can realize the self-resetting function through the steel strand and control the residual displacement after the earthquake.

Description

Self-reset wall with tuning-swing-friction composite graded energy dissipation function

technical field

The invention relates to a self-reset wall with the function of tuning-swing-friction composite graded energy dissipation. Through the continuous solidification of the retarding material, the prestress of the steel strand passing through the inner channel of the prefabricated wall is continuously increased, so as to have the function of the prestressed rib, so that the present invention can play a self-resetting effect under the action of earthquake. The lower part of the prefabricated wall is hinged and can swing motion. By changing the lateral stiffness provided by the air spring to the prefabricated wall, the rocking frequency of the prefabricated wall can be adjusted to be near the vibration frequency of the main structure, so that it has stronger energy dissipation and shock absorption capability. Under the action of small earthquakes, only the rocking motion of the prefabricated wall is used for energy dissipation and shock absorption. Under the action of medium and large earthquakes, the arc friction energy dissipation device and the rocking of the prefabricated wall jointly play the role of energy dissipation and shock absorption. The invention belongs to the technical field of earthquake resistance and shock absorption of civil engineering.

Background technique

In earthquake disasters, the destruction and collapse of building structures and secondary disasters (such as fires, etc.) caused by the collapse of building structures are important causes of casualties and property losses. In order to improve the seismic performance of the building structure, ensure that the building structure has a high safety reserve factor, and avoid the building structure from being damaged or collapsed under the action of earthquakes, it can usually be achieved by two methods: "resolve rigidity with rigidity" and "overcome rigidity with softness".

"Strengthening rigidity with rigidity" refers to increasing the rigidity of the building structure by increasing the cross-sectional area of the beam-column members in the building structure or increasing the reinforcement ratio of the cross-section, and dissipating the earthquake at the expense of partial damage to the building structure itself when an earthquake occurs energy. However, the use of such measures to transform and improve the performance of the building structure requires a long period of time, relatively high costs, and affects the normal use of the building structure.

"To overcome rigidity with softness" refers to setting up various energy-consuming and shock-absorbing devices in the building structure. The seismic energy or other vibration input energy is consumed by the energy-consuming shock absorption device attached to the main body of the building structure, thereby reducing the response of the building structure under earthquake and ensuring the safety of the building structure.

At present, commonly used energy-dissipating damping devices include viscoelastic dampers, viscous dampers, metal dampers, friction dampers, frequency-modulated mass dampers, and particle dampers. Different energy-consuming shock absorbers have different limitations in practical applications according to their different energy-consuming mechanisms. For example, metal dampers dissipate seismic energy through their own yield deformation, and there are shortcomings such as being unable to be reused many times. At the same time, various types of commonly used energy-dissipating shock absorption devices are only suitable for earthquake action within a certain intensity range. However, due to the suddenness and uncertainty of earthquakes, when the earthquake intensity exceeds the applicable strength range of the energy-consuming shock-absorbing device, the energy-consuming shock-absorbing device attached to the building structure fails rapidly, and it is difficult to play the role of energy-consuming shock-absorbing. The phenomenon of structural damage or even collapse is still unavoidable. Therefore, considering the uncertainty of earthquake intensity, it is of great significance to propose energy dissipation and shock absorption methods and limit measures suitable for different earthquake intensities.

In addition, the existence of residual deformation after the earthquake will affect the normal use of the building structure, and will make the occupants feel serious anxiety. This requires the energy-dissipating shock absorber to have a self-reset function while dissipating the seismic energy, and can control or reduce the residual deformation of the building structure after the earthquake. How to innovate the energy-consuming shock absorption device or system, so that it has the self-reset function to control the residual deformation under the premise of sufficient energy consumption and shock absorption, is an urgent problem that needs to be studied in depth.

At present, the self-resetting function of the structure is usually realized by the prestressed tendons. The rebound effect of the prestressed tendons enables the structure to have a strong recovery ability, thereby reducing the residual deformation of the structure after the earthquake. However, this kind of method has strict requirements on the prestress of the prestressed tendons, and if the prestress is too small or too large, it will affect the normal performance of the self-reset function. Usually, when prestressing is applied, the size of the prestressing cannot be accurately controlled.

In view of this, in order to dissipate the seismic energy, reduce the response of the building structure under the action of different intensities of the earthquake, and at the same time achieve the purpose of self-reset. The invention proposes a self-resetting wall with a tuning-swing-friction composite grading energy consumption function, wherein the prefabricated wall can be directly processed and manufactured in a factory, which can greatly improve the construction efficiency. The lower part of the prefabricated wall is hinged. By changing the internal air pressure of the air spring, the lateral stiffness provided by the air spring to the prefabricated wall can be adjusted, and the vibration frequency of the prefabricated wall can be controlled near the frequency of the main structure, so that it has the function of tuning the mass damper and can Energy dissipation and shock absorption by the rocking of prefabricated walls. Under the action of small earthquakes, the seismic energy is dissipated only by the rocking motion of the prefabricated wall. Under the action of medium and large earthquakes, the seismic energy is dissipated by the arc friction energy dissipation device and the rocking motion of the prefabricated wall. At the same time, the steel strand is prestressed by the continuous solidification of the setting retarding material, so that the present invention can exert the self-reset function, thereby reducing the residual deformation of the structure, and making the wall and the structure close to the initial state after the earthquake.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention proposes a self-resetting wall with a tuning-swing-friction composite graded energy dissipation function. The invention has the advantages of simple manufacture, novel form, low cost, convenient installation, high construction efficiency, grading energy consumption and shock absorption and self-resetting. The bottom of the prefabricated wall is hinged by the sliding hinge support, and the lateral stiffness of the air spring attached to the prefabricated wall is adjusted by changing the internal air pressure of the air spring, so that the frequency of the prefabricated wall is controlled near the frequency of the main structure, so that the prefabricated wall can pass its own swing. Movement dissipates external energy. Under the action of small shock, the arc-shaped friction plate in the arc-shaped friction and energy dissipation device is in contact with the arc-shaped smooth plate, which does not play the role of friction energy dissipation and shock absorption, and only performs energy dissipation and shock absorption through the swing of the prefabricated wall. Under the action of medium and large earthquakes, the arc-shaped friction plate in the arc-shaped friction energy dissipation device is in contact with the close arc-shaped friction plate. At this time, the arc-shaped friction energy dissipation device and the prefabricated wall jointly play the role of energy dissipation and shock absorption. In addition, through the continuous solidification of the retarding material, the steel strand and the prefabricated wall are bonded to each other, and the prestress of the steel strand increases continuously. .

For achieving the above object, the present invention adopts the following technical scheme:

A self-resetting wall with a tuning-swing-friction composite graded energy dissipation function, the wall consists of a prefabricated wall (1), a steel strand (2), a long metal rubber pad (3), and a short metal rubber pad (4) ), air spring (5), arc-shaped metal groove (6), high-strength metal round bar (7), rectangular metal plate (8), high-strength metal plate (9), arc-shaped metal plate (10), thin arc The metal plate (11), the arc-shaped friction plate (12), the arc-shaped smooth plate (13), the self-tapping screw (14), the nut (15) and the bolt (16) are composed together.

The high-strength metal round bar (7) is placed in the arc-shaped space after the two arc-shaped metal grooves (6) are symmetrically arranged, and the two together form a sliding hinge support, and are respectively connected to the prefabricated wall (1) through self-tapping screws (14). ) and the top of the beam; two metal rubber short spacers (4) are arranged on both sides of the sliding hinge support, respectively, and the upper top surface and the lower bottom surface are respectively connected with the lower bottom surface of the prefabricated wall (1) and the bottom surface of the beam. The top surface is in contact; the arc-shaped friction energy dissipation device is composed of a high-strength metal plate (9), a circular arc-shaped metal plate (10), a thin arc-shaped metal plate (11), an arc-shaped friction plate (12), and an arc-shaped smooth plate ( 13) and bolts (16) are composed together; the air spring (5) and the arc friction energy dissipation device are arranged in parallel between the two rectangular metal plates (8), and pass through the rectangular metal plate (14) through the self-tapping screw (14). 8) Connect with the prefabricated wall (1) and the column respectively; the metal rubber long spacer (3) is arranged between the upper top surface of the prefabricated wall (1) and the lower bottom surface of the beam; the steel strand (2) passes through the beam , prefabricated wall (1), metal rubber long spacer (3), metal rubber short spacer (4) reserved holes, and after fixing by nuts (15), fill the holes of the prefabricated wall with buffer The solidified material makes the steel strand and the prefabricated wall continuously bond and solidify, so that the steel strand is continuously stressed and has the characteristics of prestressed ribs and can play a self-reset function.

The arc-shaped smooth sheet (13) is attached to the left half of both sides of the thin arc-shaped metal plate (11), and the arc-shaped friction sheet (12) is attached to the right half of the thin arc-shaped metal plate; The arc friction plate (12) is attached to the left half of the motor, and the arc smooth plate (13) is attached to the right half; the arc-shaped metal plate (10) and the thin arc-shaped metal plate (11) are staggered and overlapped. Then, weld the left end of the arc-shaped metal plate (10) with the high-strength metal plate (9), and weld the right end of the thin-arc-shaped metal plate (11) with another high-strength metal plate (9), and pass through the circle. The bolts (16) of the arc-shaped metal plate (10) constrain the thin arc-shaped metal plate (11), thereby completing the assembly of the arc-shaped friction energy dissipation device.

In the arc-shaped friction energy dissipation device, the arc-shaped friction plate (12) can be made of resin-based friction material, carbon fiber friction material, etc., and the arc-shaped smooth plate (13) can be made of low friction coefficient materials such as polytetrafluoroethylene, etc. By adjusting the tightness of the bolts (16), pre-tightening forces of different strengths can be applied to the arc-shaped friction energy dissipation device, so that the energy dissipation device can play a frictional energy dissipation effect of different strengths.

The lower part of the prefabricated wall (1) is hinged through the sliding hinge support, and the lateral stiffness is provided by the air spring (5), which can perform energy dissipation and shock absorption through the rocking of the prefabricated wall itself under the action of earthquake.

The shape of the air spring (5) is a rectangle, its width is 0.5~0.8 times the width of the column section, and its length is 0.4~0.6 times the height of the column. By controlling the volume of gas charged into the air spring (5), the internal air pressure of the air spring (5) can be changed, thereby adjusting the lateral stiffness provided by the air spring (5) to the prefabricated wall (1), so that the prefabricated wall (1) can be The rocking frequency is always near the frequency of the main structure, ensuring that the prefabricated wall (1) has a good effect of rocking energy consumption and shock absorption.

The metal rubber long spacers (3) and the metal rubber short spacers (4) arranged at the top and bottom of the prefabricated wall (1) respectively have a width of 0.8 to 1.0 times the thickness of the prefabricated wall, and the swinging energy consumption at the prefabricated wall (1) In the process, the prefabricated wall (1) can be prevented from colliding with the beam to cause damage, and at the same time, part of the seismic energy can be dissipated through the deformation of the metal rubber.

The length and width of the rectangular metal plate (8) are respectively 0.8 to 1.0 times the height and thickness of the prefabricated wall (1), between the air spring (5), the arc friction energy dissipation device and the prefabricated wall (1) and the air spring (5) Arranging a rectangular metal plate (8) between the arc-shaped friction energy dissipation device and the column can prevent local damage to the prefabricated wall (1) and the column due to local forces.

Beams, prefabricated walls (1), metal rubber long spacers (3), and metal rubber short spacers (4) are provided with circular holes, and the diameter of the holes is 1.1 to 1.3 times the diameter of the steel strand (2). The number of arrangement of steel strands (2) depends on the length of the prefabricated wall (1), and the arrangement spacing is 1.5~2.0m.

Compared with the prior art, the advantages of the present invention are as follows:

1) The self-resetting wall with the function of tuning-swing-friction composite grading energy dissipation is simple in structure and low in cost. The prefabricated wall can be directly mass-produced by the factory, and is connected to the beam and column members through self-tapping screws, which is easy to assemble. The construction rate is high, which can significantly shorten the construction period.

2) The self-resetting wall with the function of tuning-swing-friction composite graded energy dissipation can realize the self-resetting function through the steel strands in the prefabricated wall under the action of earthquake, thereby reducing the residual displacement of the building structure after the earthquake.

3) The lower part of the prefabricated wall in the self-resetting wall with the function of tuning-swing-friction composite graded energy dissipation is hinged, and the lateral stiffness provided to the prefabricated wall can be adjusted by changing the internal air pressure of the air spring, so that the swing of the prefabricated wall can be adjusted. The frequency is controlled around the frequency of the building structure, giving the prefabricated walls a tuning-swing energy-dissipating damping function.

4) The self-resetting wall with the function of tuning-swing-friction composite graded energy dissipation can achieve the purpose of graded energy consumption and shock absorption. Under the action of small earthquakes, energy consumption and shock absorption are only carried out by the swing of the prefabricated wall. The friction plates in the lower arc friction energy dissipation device are in contact with each other, so the arc friction energy dissipation device and the prefabricated wall jointly carry out energy dissipation and shock absorption, thereby reducing the response of the building structure under earthquake.

5) The self-resetting wall with the function of tuning-swing-friction composite graded energy dissipation can prevent the prefabricated wall from colliding with the beam during the earthquake by placing metal rubber pads to prevent damage caused by the collision of the prefabricated wall. dissipate part of the seismic energy.

Description of drawings

Fig. 1 is a plan view of a self-resetting wall with a tuning-swing-friction composite graded energy dissipation function.

Figure 2 is a three-dimensional effect diagram of a self-resetting wall with a tuning-swing-friction composite graded energy dissipation function.

Figure 3 is a detailed view of the sliding hinge support.

Figure 4 is a detailed view of the metal rubber short spacer.

Figure 5 is a detailed view of the metal rubber long spacer.

Figure 6 is a detailed view of the air spring.

Figure 7 is a detailed view of the arc-shaped friction energy dissipation device.

Figure 8 is a top view of the arc-shaped friction energy dissipation device.

Figure 9 is a detailed view of the arc-shaped friction energy dissipation device exerting the friction energy dissipation effect.

In the picture: 1—prefabricated wall, 2—steel strand, 3—metal rubber long spacer, 4—metal rubber short spacer, 5—air spring, 6—arc-shaped metal groove, 7—high-strength metal round bar, 8 —Rectangular metal plate, 9—High-strength metal plate, 10—Arc-shaped metal plate, 11—Slim arc-shaped metal plate, 12—Arc friction plate, 13—Arc smooth plate, 14—Self-tapping screw, 15—Screw Cap, 16—bolt.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

Example 1:

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, it is an embodiment of the self-resetting wall with the tuning-swing-friction composite graded energy dissipation function of the present invention, which mainly includes: a prefabricated wall 1, a steel strand 2, a long metal rubber block 3, a metal Rubber short spacer 4, air spring 5, arc-shaped metal groove 6, high-strength metal round bar 7, rectangular metal plate 8, high-strength metal plate 9, arc-shaped metal plate 10, thin arc-shaped metal plate 11, arc-shaped friction plate 12. Arc smooth sheet 13, self-tapping screw 14, nut 15, bolt 16.

The specific implementation steps are as follows:

1) In order to improve the seismic performance of a reinforced concrete frame structure, reduce the damage degree of the structure under the action of the earthquake, and reduce the residual displacement of the structure after the earthquake. Therefore, the self-reset wall with the tuning-swing-friction composite graded energy dissipation function of the present invention is arranged between the beam-column planes of the frame structure. Under the earthquake action with a PGA of 0.3g, the present invention can reduce the acceleration response of the structure by 18.9%, and can reduce the displacement response of the structure by 57.4%.

2) The column height is 3300mm, and its section size is 400mm×400mm. The span of the beam is 5500mm, and its section size is 300mm×500mm. The thickness of the prefabricated wall is 300mm, which is directly processed by the factory in batches. At the same time, there are 4 prefabricated tunnels with a diameter of 23mm in the vertical direction of the beam member and the prefabricated wall.

3) As shown in Figure 3, a high-strength metal round bar with a diameter of 40mm and a length of 300mm is placed in the arc-shaped space after two arc-shaped metal grooves with a width of 300mm are symmetrically arranged, and the two together form a sliding hinge support. , and connected with the bottom of the prefabricated wall and the top of the beam by self-tapping screws.

4) As shown in Figure 4, two metal rubber short spacers with a width of 300mm and two holes with a diameter of 23mm are arranged on both sides of the sliding hinge support, and the upper top surface and the lower bottom surface are respectively connected to the prefabricated wall. The lower bottom surface of the beam is in contact with the upper top surface of the beam.

5) As shown in Figures 7 and 8, the left half of the two sides of the four thin arc-shaped metal plates are pasted with a curved smooth sheet made of PTFE, and the material is pasted on the right half of both sides. Curved friction pads in carbon fiber. The left half of the two sides of the 5 arc-shaped metal plates are pasted with arc-shaped friction plates made of carbon fiber, and the right half of them are pasted with arc-shaped smooth plates made of polytetrafluoroethylene. After the arc-shaped metal plate and the thin arc-shaped metal plate are staggered and overlapped, the left end of the arc-shaped metal plate is welded to the high-strength metal plate with a length and width of 400mm and 270mm respectively, and the right end of the thin arc-shaped metal plate is welded to the other. A piece of high-strength metal plate of the same size is welded, and the thin arc-shaped metal plate is restrained by bolts passing through the arc-shaped metal plate. Thus, the assembly of the arc-shaped friction energy dissipation device is completed.

6) Arrange an air spring with a length and a width of 800mm and a width of 270mm and an arc friction energy dissipation device in parallel between two rectangular metal plates with a length and width of 2300mm and 300mm respectively, and pass the self-tapping screw through the rectangular metal plate. The slabs are connected to prefabricated walls and columns respectively.

7) Arrange the metal rubber long spacers with 4 holes with a diameter of 23mm inside between the upper top surface of the prefabricated wall and the lower bottom surface of the beam.

8) Pass the steel strand with a diameter of 20mm through the reserved holes in the beams, prefabricated walls, metal rubber long spacers, and metal rubber short spacers, and fix them with nuts and pour them into the reserved holes in the prefabricated wall. Epoxy resin retarding material, with the continuous curing of the retarding material, the prestress of the steel strand increases continuously, so that it has the self-resetting ability. So far, the self-reset wall arrangement with the function of tuning-swing-friction composite graded energy dissipation is completed.

The device of the invention can adjust the lateral stiffness provided by the air spring to the prefabricated wall by changing the internal air pressure of the air spring, so as to adjust the vibration frequency of the prefabricated wall and control the vibration frequency near the frequency of the main structure. Under normal conditions, the self-resetting wall with the function of tuning-swing-friction composite graded energy dissipation of the present invention does not play the role of energy dissipation and shock absorption, but only plays the role of separating space. Under the action of the earthquake, the steel strands play a self-reset function to reduce the residual displacement of the structure after the earthquake. When the seismic action is small, the arc-shaped friction plate in the arc-shaped friction energy dissipation device is in contact with the arc-shaped smooth plate, so the arc-shaped friction energy dissipation device does not play the function of energy consumption and shock absorption, and only consumes energy by the swing of the prefabricated wall. damping. When the seismic action is large, the arc-shaped friction plate in the arc-shaped friction energy dissipation device is in contact with the arc-shaped friction plate. At this time, the arc-shaped friction device and the prefabricated wall jointly play the role of energy dissipation and shock absorption.

The above is a typical embodiment of the present invention, but the implementation of the present invention is not limited thereto.

Claims (8)

1. A self-resetting wall with a tuning-swing-friction composite grading energy dissipation function, characterized in that: the self-resetting wall is composed of a prefabricated wall (1), a steel strand (2), a long metal rubber block ( 3), metal rubber short spacer (4), air spring (5), arc-shaped metal groove (6), high-strength metal round bar (7), rectangular metal plate (8), high-strength metal plate (9), arc Shaped metal plate (10), thin arc-shaped metal plate (11), arc-shaped friction plate (12), arc-shaped smooth plate (13), self-tapping screw (14), nut (15), bolt (16) Composition: The high-strength metal round bar (7) is placed in the arc-shaped space after the symmetrical arrangement of the two arc-shaped metal grooves (6), and the two together form the sliding hinge support, and are respectively connected to the prefabricated wall through self-tapping screws (14). The bottom of (1) and the top of the beam are connected; two metal rubber short spacers (4) are arranged on both sides of the sliding hinge support, respectively, and the upper top surface and the lower bottom surface are respectively connected with the lower bottom surface and the lower bottom surface of the prefabricated wall (1). The upper and top surfaces of the beams are in contact; the arc-shaped friction energy dissipation device is composed of a high-strength metal plate (9), a circular arc-shaped metal plate (10), a thin arc-shaped metal plate (11), an arc-shaped friction plate (12), and an arc-shaped smooth The sheet (13) and the bolt (16) are composed together; the air spring (5) and the arc friction energy dissipation device are arranged in parallel between the two rectangular metal plates (8), and pass through the rectangular metal plate through the self-tapping screw (14). The plate (8) is connected with the prefabricated wall (1) and the column respectively; the metal rubber long spacer (3) is arranged between the upper top surface of the prefabricated wall (1) and the lower bottom surface of the beam; the steel strand (2) passes through the The reserved holes inside the lintel, prefabricated wall (1), metal rubber long spacer block (3), and metal rubber short spacer block (4) are fixed with nuts (15), and then move to the reserved holes in the prefabricated wall. The channel is filled with retarding material, and the prestress of the steel strand (2) is continuously increased through the continuous bonding and solidification of the retarding material, so that it has self-resetting ability; the left half of the two sides of the thin arc-shaped metal plate (11) The arc-shaped smooth sheet (13) is attached to the part, and the arc-shaped friction sheet (12) is attached to the right half; the arc-shaped friction sheet (12) is attached to the left half of both sides of the arc-shaped metal plate (10). ), the right half of which is affixed with an arc-shaped smooth sheet (13); after the circular arc-shaped metal plate (10) and the thin arc-shaped metal plate (11) Welding with the high-strength metal plate (9), the right end of the thin arc-shaped metal plate (11) is welded with another high-strength metal plate (9), and the bolts (16) passing through the arc-shaped metal plate (10) are connected. The thin arc-shaped metal plate (11) is constrained, thereby completing the assembly of the arc-shaped friction energy dissipation device; by controlling the volume of gas charged into the air spring (5), the internal air pressure of the air spring (5) can be adjusted, thereby adjusting the air The spring (5) provides the lateral stiffness of the prefabricated wall (1), and controls the swing frequency of the prefabricated wall (1) near the frequency of the main structure, so as to ensure that the prefabricated wall (1) has a better effect of swinging energy dissipation and shock absorption. 2. A self-resetting wall with a tuning-swing-friction composite graded energy dissipation function according to claim 1, characterized in that: in the arc-shaped friction energy dissipation device, the arc-shaped friction plate (12) is made of resin-based It is made of friction material or carbon fiber friction material, and the arc-shaped smooth sheet (13) is made of polytetrafluoroethylene or other low-friction coefficient materials. Different strengths of pre-tightening force make the energy dissipation device play the role of frictional energy dissipation of different strengths. 3. A self-resetting wall with tuning-swing-friction composite graded energy dissipation function according to claim 1, characterized in that: the lower part of the prefabricated wall (1) is hinged through a sliding hinge support, and is connected by an air spring (5) Provide lateral stiffness, and can perform energy dissipation and shock absorption through the rocking of the prefabricated wall itself under the action of earthquake. 4. A self-resetting wall with tuning-swing-friction composite graded energy dissipation function according to claim 1, characterized in that: the shape of the air spring (5) is a rectangle, and its width is 0.5 of the column section width ~0.8 times, its length is 0.4~0.6 times the height of the column. 5. A self-resetting wall with a tuning-swing-friction composite graded energy dissipation function according to claim 1, characterized in that: metal rubber long spacers ( 3) The width of the metal rubber short block (4) is 0.8 to 1.0 times the thickness of the prefabricated wall, which can prevent the prefabricated wall (1) from colliding with the beam during the energy dissipation process of the prefabricated wall (1) and causing damage at the same time. Part of the seismic energy can also be dissipated by deformation of the metal rubber. 6. A self-resetting wall with a tuning-swing-friction composite graded energy dissipation function according to claim 1, characterized in that: the length and width of the rectangular metal plate (8) are respectively the height of the prefabricated wall (1). and 0.8~1.0 times the thickness, and arrange rectangular metal plates between the air spring (5), the arc friction energy dissipation device and the prefabricated wall (1), and between the air spring (5), the arc friction energy dissipation device and the column (8) It can prevent the local damage of prefabricated walls (1) and columns due to local forces. 7. A self-resetting wall with tuning-swing-friction composite graded energy dissipation function according to claim 1, characterized in that: beams, prefabricated walls (1), metal rubber long spacers (3), metal There are circular holes in the rubber short spacers (4). The diameter of the holes is 1.1~1.3 times the diameter of the steel strands (2). The number of the steel strands (2) depends on the length of the prefabricated wall (1). The arrangement spacing is 1.5~2.0m. 8. A self-resetting wall with tuning-swing-friction composite grading energy dissipation function according to claim 1, characterized in that: under the action of small shock, the arc-shaped friction plate in the arc-shaped friction energy dissipation device (12) It is in contact with the arc-shaped smooth sheet (13), so it does not play the role of friction and energy dissipation, and only the prefabricated wall (1) performs energy dissipation and shock absorption through swinging; under the action of a large earthquake, the arc-shaped friction energy dissipation device The arc-shaped friction plate (12) is in contact with the arc-shaped friction plate (12). At this time, the arc-shaped friction energy dissipation device and the prefabricated wall (1) jointly play the role of energy dissipation and shock absorption. The steel strand (2) realizes the self-reset function and controls the residual deformation of the structure.

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