A folding seismic isolation joint covering device

Abstract

The present invention provides a foldable seismic isolation joint covering device, which relates to the technical field of building seismic isolation and can be arranged as a joint covering member between building seismic isolation joints. The foldable joint covering device includes a vertical fixing member, a folding member, a folding fixing member, and a flexible cover plate, which can form a connection between the seismic isolation joints. The vertical fixing members are installed on the building structural members on both sides of the seismic isolation joint. Multiple folding members can be combined and arranged to make the two sides of the joint flexibly connected. The folding members are connected to each other through the folding fixing members, and the distance between them provides the performance of compression and tension in the X direction. The material performance of the folding members combined with the folding fixing members provides the displacement ability in the Y direction. This device can adapt to different displacements and torsions of the building under seismic action, and provides the vertical support ability of the device. A flexible cover plate is laid on the folding member to adapt to the deformation, ensuring the post-earthquake service performance, and having good recoverability, versatility, and replaceability.

Description

Technical Field

[0001] The present invention relates to the technical field of building seismic isolation, and particularly to a folding joint covering device for building seismic isolation joints. Background Art

[0002] With the continuous development of seismic isolation technology and the update of standards and specifications, the use of seismic isolation bearings in high-intensity earthquake areas is becoming more and more common. Its characteristic is that the superstructure is separated from the foundation or the substructure by it, reducing the influence of seismic action on the superstructure. Although the use of the seismic isolation layer has greatly improved the seismic performance of the structure, it still results in structural requirements different from traditional structures. Its most obvious characteristic is the existence of a seismic isolation layer and a seismic isolation joint. In particular, more research is still needed on the filling and covering of the gaps between adjacent independent building seismic isolation layers or between the seismic isolation layer building and the non-seismic isolation building. Under seismic action, due to the difference in periods of each building, the movements are inconsistent, making the joint covering device of the aforementioned gap easily damaged or lose its supporting function after an earthquake, breaking the connection of the building use unit and having a relatively high repair cost.

[0003] At present, the actually used seismic isolation joint covering devices mostly use sliding mechanical devices to provide displacement performance, and are mostly suitable for large displacement requirements in a single direction. They cannot fully adapt to the deformation displacements in multiple directions or under actual seismic action, and still lack effective means for covering seismic isolation joints with large intervals and long distances. Therefore, to solve the problems of protrusion, folding, damage of the joint covering device and the relative movement between the two building units under seismic action, this solution considers the displacement and deformation capabilities of the joint covering device in the horizontal plane (X, Y) directions and the supporting ability in the vertical direction during an earthquake. The components used are from existing seismic isolation joint devices or industrial products, without the need for separate design and production, and are easy to install and replace, making it have good promotional significance and value. Summary of the Invention

[0004] The purpose of the present invention is to provide a device that can connect and cover the seismic isolation joints of adjacent buildings, which has the ability to deform autonomously and recover deformation in the horizontal X and Y directions, can provide support force in the vertical direction, and has the characteristics of low cost, easy replacement, and no need for continuous maintenance. According to different usage environments and scenario requirements, multiple folding parts or multiple groups of folding devices can be selected for combination, which is not only applicable to two adjacent seismic isolation buildings, but also meets the joint covering requirements between seismic isolation buildings and ordinary buildings, thus solving the design problems of seismic isolation joints.

[0005] The present invention is achieved through the following technical solutions:

[0006] A folding joint sealing device, comprising a vertical fixing member 1, a folding member 2, a folding fixing member 3, a flexible cover plate 4, a sliding buffer member 5, a civil engineering member 6, and a joint filling flexible material 7; the vertical fixing member 1 is fixed to the inner side of the end of the civil engineering member 6 by means of embedded bolts, expansion bolts or post-inserted reinforcing bars; the folding member 2 is fixed to the vertical fixing member 1 by bolts or rivets, the folding fixing member 3 is a T-shaped member, the vertical surface of the T is embedded between two folding members 2 and is connected to the folding member 2 by bolts, and sliding buffer members 5 are provided at the cross positions of the horizontal and vertical surfaces of the T at the upper and lower ends of the folding fixing member 3, and the distance between the sliding buffer members 5 on adjacent folding fixing members 3 is d; the top of the sliding buffer member 5 protrudes and is smooth.

[0007] Preferably, when the folding member 2 is used singly, the folding fixing member 3 is omitted and directly fixed on the vertical fixing member 1.

[0008] Preferably, the folding member 2 is fixed to the civil engineering member 6 by passing embedded bolts, expansion bolts or post-inserted reinforcing bars through the vertical fixing member 1.

[0009] Preferably, the dimensions of the vertical fixing member 1, the folding member 2, the folding fixing member 3 and the civil engineering member 6 are matched according to the depth of the seismic isolation joint, and a distance of 50-100 mm is left between the bottom of the vertical fixing member 1 and the civil engineering member 6.

[0010] Preferably, the flexible cover plate 4 is composed of a steel plate and a flexible material laid on the steel plate, and the flexible material is rubber or asphalt; a lubricating coating is applied to the contact surface between the folding fixing member 3 and the flexible cover plate 4 to improve the sliding property of the flexible cover plate 4 on the folding fixing member 3 and the sliding buffer member 5, and to avoid rigid contact between the folding fixing member 3 and the flexible cover plate 4 and the civil engineering member 5; the lower part of the folding fixing member 3 is in soft contact with the civil engineering member 6 through the sliding buffer member 5, and a lubricant is applied to avoid collision damage with the civil engineering member 6.

[0011] Preferably, the gap between the flexible cover plate 4 and the civil engineering member 6 is filled with the joint filling flexible material 7, the size of the flexible cover plate 4 is determined according to the use width of the seismic isolation joint, and the joint filling flexible material 7 has flexibility and replaceability.

[0012] Preferably, the material of the sliding buffer member 5 is metal, rubber or resin.

[0013] Preferably, between the seismic isolation joints, a flexible waterstop 8 and a flexible fire isolation belt 9 are provided below the civil engineering member 6, and the fire resistance limit is not less than 1.5 hours.

[0014] Preferably, the folding member 2 is fixed to the vertical fixing member 1 by bolts or rivets, and there is an installation clearance of 10 mm, and a metal gasket having the same size as the fixing member in the vertical direction is added below the bolt.

[0015] Preferably, the folding member 2 is made of rubber and is in the shape of a hollow cylinder or a hollow cuboid. The diameter of the circle or the width of the rectangle of the cross-section of the folding member 2 is not greater than 3 times the length of the T-shaped cross-section of the folding and fixing member 3. According to the number of combined folding members 2, the folding cover joint device has a tensile and compressive margin of ±Xd.

[0016] The combination of multiple folding members 2 meets the seismic requirements in the X direction. The combined use of multiple folding seismic isolation cover joint devices of the present invention meets the seismic requirements in the Y direction. The distance between two folding seismic isolation cover joint devices can be set according to the modulus: 600mm, 1200mm, 1800mm, 2400mm or determined according to the actual situation.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention can provide filling and covering of seismic isolation joints suitable for different spacings, distances and complex situations. By utilizing the elastic deformation ability of the folding member 2 and the combined and coordinated deformation ability of the device, it can simultaneously provide the movement and deformation ability in the X direction. The material properties of the folding member 2 combined with the folding and fixing member provide the displacement ability in the Y direction. And it relies on the folding and fixing member to provide sufficient vertical support. The present invention can be applied between seismic isolation buildings or between non-seismic and seismic isolation buildings. Under rare earthquake actions, it only needs to replace the surface flexible cover plate and the folding member to continue to be used, without long-term maintenance. This device does not need to be manufactured separately, and can be combined and produced using existing standardized products. Moreover, its installation can also be carried out synchronously during the construction process, without restrictions on the buildings on both sides of the seismic isolation joint. All components can be manufactured in the factory and then installed on-site. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the folding cover joint device of the present invention or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. The drawings in the following description are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained according to the drawings.

[0020] FIG Figure 1 is a schematic diagram of the folding seismic isolation cover joint device of the present invention

[0021] FIG Figure 2 is a top view of the folding seismic isolation cover joint device of the present invention

[0022] FIG Figure 3 is a sectional view taken along line A-A of the folding seismic isolation cover joint device of the present invention

[0023] FIG Figure 4 is an enlarged view of the folding and fixing member of the present invention

[0024] Reference numerals:

[0025] Vertical fixing member (1), folding member (2), folding fixing member (3), flexible cover plate (4), sliding buffer member (5), civil engineering member (6), caulking flexible material (7), flexible waterstop (8), flexible fire isolation belt (9). Specific embodiments

[0026] 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. Obviously, the described embodiments are only one embodiment of the present invention, rather than all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of this application should have the ordinary meaning understood by those of ordinary skill in the art in the relevant field. The "first", "second" and similar terms used in this embodiment do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. "Installation", "connection" and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. "Upper", "lower", "left", "right", "horizontal" and "vertical" are only relative to the orientation of the components in the drawings. These directional terms are relative concepts, and they are used for relative description and clarification, and they can change accordingly with the change of the orientation of the components placed in the drawings.

[0028] The folding joint covering device shown in the drawings includes a vertical fixing member (1), a folding member (2), a folding fixing member (3), a flexible cover plate (4), a sliding buffer member (5), a civil engineering member (6), a caulking flexible material (7), a flexible waterstop (8), and a flexible fire isolation belt (9).

[0029] An embodiment of the present invention provides a folding shock isolation joint covering device. By using multiple series combinations of folding members and folding fixing members, as shown in the attached drawings Figure 1 shown, or multiple sets of devices are used simultaneously, as shown in the attached drawings Figure 2 shown, the folding shock isolation joint covering device provides displacement deformation capabilities in two horizontal directions (X, Y) and also has a supporting capacity in the vertical direction.

[0030] The folding part 2 is adhesively bonded into a hollow cylinder using a rubber pad, and a protective material is coated on its surface. Its size is determined according to the usage scenario, providing tensile and compressive properties in the horizontal direction. After the folding part is fixed, there is a clearance of 5 - 20 mm in the horizontal direction.

[0031] When multiple folding and fixing parts 3 are used in series, the distance between their centers is d, and the sum of the distances is the deformation limit of the folding seismic joint covering device.

[0032] The flexible cover plate 4 uses a galvanized steel plate with flexible materials such as asphalt or plastic laid on it. The width is set according to the width of the seismic joint, and the length direction is unified with the folding part. They are combined and arranged, and the edge gaps are filled with flexible caulking materials.

[0033] The sliding buffer part 5 can be made of materials such as metal, rubber, and resin and used in combination with the folding and fixing part 3. It is adhesively bonded or welded to the upper and lower surfaces of the folding and fixing part 3 respectively, and lubricant is applied, and it is softly connected to the flexible cover plate 4 and the civil engineering component 6.

[0034] The civil engineering component 6 is usually made of concrete, and steel structure components can also be used. If the joint covering device needs to be bolted, embedded connectors or post - installed reinforcement bars are required.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A foldable seismic isolation joint covering device, comprising a vertical fixing member (1), a folding member (2), a folding fixing member (3), a flexible cover plate (4), a sliding buffer member (5), a civil engineering component (6), and a joint filling flexible material (7); the vertical fixing member (1) is fixed to the inner side of the end of the civil engineering component (6) by means of embedded bolts, expansion bolts or post-inserted reinforcement; the folding member (2) is fixed to the vertical fixing member (1) by bolts or rivets, the folding fixing member (3) is a T-shaped member, the vertical surface of the T is embedded between two folding members (2), and is connected to the folding member (2) by bolts. Sliding buffer members (5) are provided at the cross positions of the horizontal and vertical surfaces of the T at the upper and lower ends of the folding fixing member (3), and the distance between the sliding buffer members (5) on adjacent folding fixing members (3) is d; the top of the sliding buffer member (5) protrudes and is smooth.

2. The foldable seismic isolation joint covering device according to claim 1, wherein: The folding member (2) is fixed to the civil engineering component (6) by passing embedded bolts, expansion bolts or post-inserted reinforcement through the vertical fixing member (1).

3. The folding seismic joint covering device according to claim 1, wherein: The dimensions of the vertical fixing member (1), the folding member (2), the folding fixing member (3) and the civil engineering component (6) are matched according to the depth of the seismic isolation joint. A distance of 50-100 mm is left between the bottom of the vertical fixing member (1) and the civil engineering component (6).

4. A foldable seismic isolation joint covering device according to claim 1, characterized in that: The flexible cover plate (4) is composed of a steel plate and a flexible material laid on the steel plate. The flexible material is rubber or asphalt; a lubricating coating is applied to the contact surface between the folding fixing member (3) and the flexible cover plate (4) to improve the sliding property of the flexible cover plate (4) on the folding fixing member (3) and the sliding buffer member (5). The lower part of the folding fixing member (3) is in soft contact with the civil engineering component (6) through the sliding buffer member (5).

5. A foldable seismic isolation joint covering device according to claim 1, characterized in that: The gap between the flexible cover plate (4) and the civil engineering component (6) is filled with the joint filling flexible material (7). The size of the flexible cover plate (4) is determined according to the use width of the seismic isolation joint. The joint filling flexible material (7) has flexibility and replaceability.

6. The foldable seismic isolation joint covering device according to claim 1, characterized in that: The material of the sliding buffer member (5) is metal, rubber or resin.

7. A folding seismic isolation joint covering device according to claim 1, characterized in that: Between the seismic isolation joints, a flexible water stop belt (8) and a flexible fire isolation belt (9) are provided below the civil engineering component (6), and the fire resistance limit is not less than 1.5 hours.

8. The folding seismic isolation joint covering device according to claim 1, wherein: The folding member (2) is fixed to the vertical fixing member (1) by bolts or rivets, and there is an installation clearance of 10 mm. A metal gasket with the same size as the fixing member in the vertical direction is added below the bolt.

9. The folding seismic isolation joint covering device according to claim 1, wherein: The material of the folding member (2) is rubber, and its shape is a hollow cylinder or a hollow cuboid. The circular diameter of the cross-section of the folding member (2) or the width of the rectangle of the cross-section is not greater than 3 times the length of the horizontal surface of the T of the folding fixing member (3). According to the number of combined folding members (2), the foldable joint covering device has a tensile and compressive allowance of ±Xd.

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