Fabricated masonry structure damping sliding device and filler wall

Abstract

The utility model provides an assembly type masonry structure damping sliding device and an infilled wall. The assembly type masonry structure damping sliding device comprises a fixing plate, a steel sleeve box and a telescopic plate. The left fixing plate and the right fixing plate are oppositely arranged, the two steel sleeve boxes are perpendicularly and fixedly connected with the fixing plates respectively, the steel sleeve boxes form containing spaces, the telescopic plate can be telescopically contained in the containing spaces on the two sides, and the two ends of the telescopic plate are fixedly connected with the fixing plates respectively. The damping sliding device for the fabricated masonry structure has good damping capacity, material aging is reduced, and production and installation cost is saved. The method can be widely used in the field of building infilled wall damping in earthquake-prone areas.

Description

Technical Field

[0001] The present invention relates to the technical field of building structure shock absorption, and in particular to a shock absorption and sliding device for infill walls. Background Art

[0002] Infill walls are prone to damage during earthquakes, which not only brings high repair costs but also poses a significant threat to the safety of buildings. Usually, viscous dampers are used. These devices consume the seismic energy entering the wall through viscous damping. They can be installed at key joints of the wall. When the building structure sways during an earthquake, the viscous damper converts kinetic energy into heat energy, thereby reducing the response of the structure.

[0003] The inventors of this application found in their research that: the existing technologies usually have high costs, the materials are prone to aging, and regular inspections and maintenance are required. The shock absorption performance is not high, and it may also be affected by temperature changes and cannot face rapid impacts. In addition, the viscous fluid may age over time, resulting in a weakened damping effect. There are also problems such as difficulty in repairing the damage between the device and the wall, weak shock absorption performance, and low construction efficiency in traditional infill wall shock absorption devices. In summary, traditional infill wall structures have problems such as concentrated damage, many secondary disasters, and great damage hazards. Therefore, there is an urgent need to invent a new type of infill wall shock absorption device that can overcome these problems. Summary of the Invention

[0004] This application provides a shock absorption and sliding device, aiming to solve the problems existing in traditional infill wall shock absorption devices, such as weak shock absorption performance, difficulty in repairing wall damage, high costs, and easy aging of materials.

[0005] To solve the above technical problems, the technical solution adopted in this application is as follows:

[0006] An assembled masonry structure shock absorption and sliding device, comprising:

[0007] A fixing plate, a steel sleeve box, and a telescopic plate;

[0008] The left and right fixing plates are arranged opposite to each other. The two steel sleeve boxes are respectively fixedly connected perpendicular to the fixing plates. The steel sleeve box is configured to have an accommodating space. The telescopic plate can be telescopically accommodated in the accommodating spaces on both sides and is fixedly connected to the fixing plates at both ends.

[0009] Further, the surface of the steel sleeve box is coated with a modified SMA material.

[0010] Further, the telescopic plate is in a tower-shaped structure that is narrow in the middle and wide on both sides.

[0011] Further, the telescopic plate can freely expand and contract according to the wall thickness.

[0012] Further, the entire device is symmetric about the center point of the telescopic plate.

[0013] On the other hand, this application also claims to protect a infilled wall using the assembled masonry structure shock-absorbing and sliding device as described above, including:

[0014] Walls on both sides;

[0015] A rubber filling layer filled within the fixed plates at both ends of the shock-absorbing and sliding device;

[0016] The shock-absorbing and sliding device is arranged between the walls on both sides.

[0017] Compared with the prior art, the technical solution proposed in this application has the following beneficial technical effects:

[0018] (1) Based on the failure mode of the infilled wall with sliding cracking, a sliding device is arranged in the wall, which can change the wall failure from diagonal failure to sliding failure, and the failure range from concentrated failure to point-like failure. The energy dissipation capacity of the structure is better, the post-earthquake damage degree of the infilled wall is reduced, and at the same time, the stability of the frame is significantly improved, the overall safety performance of the infilled wall is enhanced, and the life safety of users during the earthquake is guaranteed;

[0019] (2) The SMA modified asphalt used in this device has good surface function, anti-deformation ability, high viscosity, excellent durability and anti-fatigue ability. It is used to enhance the bonding performance with the wall and reduce the construction difficulty, making the application of this product more flexible and reliable, and solving the pain point of difficult construction and reinforcement of infilled walls.

[0020] (3) This application introduces a rubber filling process, uses the high resilience of rubber to enhance the self-healing ability of the assembled masonry structure shock-absorbing and sliding device for the wall, accurately simulates and compares the recovery ability of the wall before and after adding the assembled masonry structure shock-absorbing and sliding device using ABAQUS finite element software. The recovery performance of the infilled wall structure using this product is significantly improved, solving the defect of high repair cost of infilled walls. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a three-dimensional view of an assembled masonry structure shock-absorbing and sliding device provided by an embodiment of the present invention.

[0023] Figure 2This is the front view of a shock-absorbing sliding device for an assembled masonry structure provided by an embodiment of the present invention.

[0024] Figure 3 This is the front view of a infill wall provided by an embodiment of the present invention.

[0025] Icon: 1 - steel sleeve; 2 - telescopic plate; 3 - SMA material; 4 - fixing plate; 5 - rubber filling layer; 6 - masonry structure shear wall. Detailed implementation manners

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] As Figure 1 、 Figure 2 and Figure 3 shown, the shock-absorbing sliding device for an assembled masonry structure in the embodiments of the present application includes:

[0028] a fixing plate 4, a steel sleeve 1 and a telescopic plate 2;

[0029] The two fixing plates 4 on the left and right are arranged oppositely, the two steel sleeves 1 are respectively fixedly connected perpendicular to the fixing plate 4, the steel sleeve 1 is configured to have an accommodation space, the telescopic plate 2 can be telescopically accommodated in the accommodation spaces on both sides, and both ends are fixedly connected to the fixing plate respectively.

[0030] The present application can effectively solve the problems of high repair cost, great damage hazard and difficult construction reinforcement faced by infill walls during earthquakes. On the one hand, the telescopic plate realizes the length adjustment in the horizontal direction (or transverse direction) through a horizontal segmented telescopic device to meet the use of walls with different thicknesses. On the other hand, the sliding material can effectively improve the in-plane seismic performance of the wall and make its out-of-plane seismic performance meet the specifications.

[0031] This device can be used for newly-built walls of infill walls. At the same time, it can also be used for the reinforcement of existing infill walls.

[0032] The shock-absorbing sliding device for prefabricated masonry structures of the present application can convert the originally concentrated damage into dispersed punctiform damage, effectively improve the stability of the frame, reduce secondary disasters, and ensure the safety of users during earthquakes. In addition, in order to reduce the construction difficulty and improve the bonding performance with the wall, SMA material 3 is used on the upper and lower end faces of the device. The application of this material not only optimizes the combination of the device and the wall, but also improves the construction efficiency and flexibility, and solves the difficulties of construction reinforcement.

[0033] In addition, the present application also discloses a infilled wall using a shock-absorbing sliding device for prefabricated masonry structures as described above, including: walls 6 on both sides; a rubber filling layer 5 filled within the end fixing plates of the shock-absorbing sliding device; and a shock-absorbing sliding device disposed between the walls on both sides.

[0034] In the present application, a rubber filling process is introduced. Utilizing the high elastic recovery performance of the rubber material, the self-repair ability of the infilled wall is significantly enhanced. Through precise simulation using ABAQUS finite element software, it is confirmed that the structural recovery ability of the infilled wall is significantly improved after the device is added.

[0035] The rubber filling layer, as the main body, is located inside the infilled wall. Its thickness is 4 - 10 mm and its width is 50 - 100 cm. It can absorb the energy generated by earthquakes and reduce the vibration of the wall. The shock-absorbing sliding device for prefabricated masonry structures is installed inside the infilled wall, with a diameter of 5 - 10 cm. It can guide the deformation of the wall during earthquakes and prevent the overall collapse of the structure. The thickness of the SMA material 3 bonding layer is 4 - 15 mm, which is evenly applied to the contact surface between the device and the wall, ensuring that the device is firmly fixed to the wall and facilitating the construction process at the same time.

[0036] During operation, the rubber filling layer deforms under the action of earthquakes, absorbs earthquake energy, and then quickly returns to its original state, realizing the self-repair of the wall. The sliding conversion mechanism allows the wall to have a small displacement in a specific direction, dispersing stress and preventing concentrated damage. The SMA material 3 bonding layer keeps the device and the wall in close contact during earthquakes, preventing the device from falling off.

[0037] Compared with the prior art, the shock-absorbing sliding device for prefabricated masonry structures of the present invention has achieved the following beneficial technical effects:

[0038] (1) Stability: Using materials with excellent resilience performance, strong bonding force, excellent physical and mechanical properties and processing properties, it can better provide rebound repair force for the device, playing a role in the self-repair of the wall. It has good surface functions, anti-deformation ability, high viscosity, excellent durability and anti-fatigue ability;

[0039] (2) Safety: Under seismic action, it can increase the in-plane bearing capacity while ensuring that the out-of-plane bearing capacity meets the specifications, which can greatly reduce the damage of the wall and has a wide range of applications. Moreover, this device is simple to manufacture, the raw materials are easy to obtain, with great functional benefits and high economic value. Nitrile rubber has excellent resilience and strong adhesion, with good physical and mechanical properties and processing performance, which can better provide the resilience repair force for the device and play a role in self-repairing the wall;

[0040] (3) Seismic resistance: The setting of the sliding device changes the failure mode of the wall. The wall failure changes from diagonal failure to sliding failure. The energy dissipation capacity of the frame members increases, and the damage degree of the infill wall and the residual deformation of the members are significantly reduced. The residual deformation decreases by 27%, and the damage rate of the infill wall is at least reduced by more than 93%, which can meet the specification requirements under various seismic actions;

[0041] (4) Applicability: On the one hand, the design of the telescopic rod enables this device to meet the use requirements of walls with different thicknesses. On the other hand, the sliding material can effectively improve the in-plane seismic performance of the wall and make its out-of-plane seismic performance meet the specifications. This device can be used for newly built infill walls and, at the same time, for the reinforcement of existing infill walls.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A prefabricated masonry structure damping sliding device, characterized in that: include: Fixed plate, steel sleeve and telescopic plate; The left and right fixed plates are arranged opposite to each other, and the two steel sleeves are respectively fixedly connected to the fixed plates vertically. The steel sleeves are configured to have a containing space, and the telescopic plates can be telescopically accommodated in the containing spaces on both sides, and the two ends are respectively fixedly connected to the fixed plates.

2. The assembled masonry structure damping sliding device according to claim 1, characterized in that: The surface of the steel sleeve is coated with modified SMA material.

3. The assembled masonry structure damping sliding device according to claim 1, characterized in that: The telescopic plate is a tower-shaped structure which is narrow in the middle and wide at both sides.

4. The device according to claim 1, characterized in that The telescopic plate can be freely telescoped according to the thickness of the wall.

5. The device according to claim 1, characterized in that The whole device is symmetrical about the center point of the telescopic plate.

6. A filling wall using the assembled masonry structure damping sliding device according to claim 1, characterized in that: include: The walls on both sides; A rubber filling layer filled in the fixed plates at both ends of the damping sliding device; The shock-absorbing sliding device is arranged between the walls on both sides.

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