Cross-shaped tensile device used in cooperation with friction pendulum shock insulation support

Abstract

The cross-shaped tensile device used in cooperation with the friction pendulum shock insulation support comprises an upper sliding rail, a lower sliding rail and a connecting piece, the upper sliding rail and the lower sliding rail are in a reverse buckling state and are arranged in a relative sliding mode, and the upper sliding rail is fixedly connected with a lower structure through the connecting piece; and the lower sliding rail is fixedly connected with an upper structure through a connecting piece. The upper sliding rail and the lower sliding rail are connected in a hooked mode to prevent the shock insulation layer from being lifted off, so that the tensile capacity of the shock insulation layer is improved, the friction pendulum support is prevented from being damaged, the lift-off condition of the shock insulation layer under rare occurrence earthquakes is relieved or eliminated, and the device is simple in structure, small in size, convenient to install and maintain, capable of being used in a built shock insulation structure or a shock insulation structure under construction and high in practicability. And the shock insulation effect of an original shock insulation layer is not affected, and the anti-drawing capacity of the shock insulation layer is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of friction pendulum support tensile devices, in particular to a cross-shaped tensile device used in conjunction with a friction pendulum isolation support. Background Art

[0002] Building seismic isolation technology is to set up an isolation layer composed of seismic isolators (rubber seismic isolation bearings, sliding bearings, friction pendulum sliding bearings), damping devices, etc. between the foundation or lower part and the upper structure of the building to isolate the transmission of seismic energy to the upper structure, reduce the seismic energy input to the upper structure, and at the same time extend the natural vibration period of the upper structure, reduce the seismic response of the upper structure, achieve the expected seismic resistance and earthquake protection requirements, and make the safety of the building more reliably guaranteed.

[0003] The friction pendulum-type shock-isolating bearing is essentially not only a pendulum-type seismic isolation bearing, but also a sliding friction bearing. While utilizing the friction between two curved surfaces to achieve the bearing's seismic isolation function, it also relies on the pendulum mechanism to extend the natural vibration period of the substructure, thereby reducing seismic forces. Furthermore, due to its relatively small size, the friction pendulum-type shock-isolating bearing has rapidly gained widespread use around the world. In the event of a minor earthquake, the bridge's stability can be ensured by the static friction between the superstructure's deadweight and the bridge's direct force. However, in the event of a larger earthquake, the upper and lower portions of the bearing can slide on the contact surface (curved surface), preventing the seismic forces acting on the superstructure from being transmitted to the substructure, thereby achieving the desired seismic isolation effect.

[0004] The friction pendulum isolation bearings currently used in buildings swing along the lower support plate when the isolation device is working, which requires the upper structure to be raised. Therefore, the friction pendulum bearings generally do not have the anti-pullout function. The bearings cannot limit the vertical displacement of the building and can only bear compression. For multi-story and high-rise isolation buildings, under the action of strong earthquakes, the isolation bearings may be lifted off the foundation and damaged, affecting the safety of the building. Utility Model Content

[0005] The purpose of the utility model is to provide a cross-type tensile device used in conjunction with a friction pendulum isolation support to solve the problem in the above-mentioned background technology that the building isolation layer has poor seismic isolation effect and is prone to lift-off damage.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A cross-shaped tensile device used in conjunction with a friction pendulum seismic isolation support includes an upper slide rail, a lower slide rail and a connecting piece. The upper slide rail and the lower slide rail are in an inverted state and are arranged to slide relative to each other. The upper slide rail is fixedly connected to the lower structure through the connecting piece; the lower slide rail is fixedly connected to the upper structure through the connecting piece.

[0008] Furthermore, the top surface of the upper slide rail is a horizontal surface, the bottom surface is a convex surface, and it is fixedly connected to the lower structure through a connecting piece; the top surface of the lower slide rail is a convex surface, the bottom surface is a horizontal surface, and it is fixedly connected to the upper structure through a connecting piece; the most convex point of the bottom surface of the upper slide rail is tightly fitted with the most convex point of the top surface of the lower slide rail.

[0009] Furthermore, the upper slide rail and the lower slide rail are arranged in a cross shape in the horizontal direction, and the curvature of the bottom surface of the upper slide rail and the top surface of the lower slide rail are the same.

[0010] Furthermore, the connecting member includes a first connecting body and a second connecting body. The first connecting body is set on both the upper sliding rail and the lower sliding rail. The second connecting body is set corresponding to the first connecting body. A reserved hole is opened on the first connecting body and is connected to the second connecting body by high-strength bolts.

[0011] Furthermore, the upper slide rail is a metal slide rail, and a wear-resistant layer is provided on the convex surface thereof.

[0012] Furthermore, a stainless steel metal layer is provided on the convex surface of the lower sliding rail.

[0013] Furthermore, horizontal sections are provided at the bottom of the upper slide rail and the top of the lower slide rail corresponding to the positions of the first connector.

[0014] Furthermore, the first connector is a vertically arranged ear plate, and the second connector is an I-beam. The I-beam is fixedly connected to the building structure through anchor bolts, and a vertical waist-shaped hole is provided on the upper flange of the I-beam.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model provides a cross-shaped tensile device for use with a friction pendulum isolation bearing. By connecting the upper and lower slide rails, it prevents the isolation layer from lifting off, thereby improving the tensile capacity of the isolation layer, avoiding damage to the friction pendulum bearing, and reducing or eliminating the lifting of the isolation layer in rare earthquakes.

[0017] 2. The utility model provides a cross-shaped tensile device for use with a friction pendulum isolation support. It has a simple structure, a small device size, and is easy to install and maintain. It can be used in isolation structures that have been built or are under construction, and does not affect the isolation effect of the original isolation layer, effectively improving the tensile strength of the isolation layer.

[0018] 3. The utility model provides a cross-type tensile device used in conjunction with a friction pendulum isolation support. By adjusting the structural steel and material of the upper and lower slide rails, the two are less likely to suffer structural damage during free sliding in the horizontal directions, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic structural diagram of the tensile device involved in the present utility model;

[0020] Figure 2 This is a schematic diagram of the installation of the tensile device involved in the utility model in a building structure.

[0021] In the figure: 1-upper slide rail, 2-lower slide rail, 3-connecting piece. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides a cross-shaped tensile device used in conjunction with a friction pendulum isolation support, which is arranged between the upper building structure and the lower building structure. The tensile device prevents the friction pendulum support from lifting off during an earthquake, thereby enhancing the tensile capacity of the isolation layer.

[0024] like Figure 1 、 2 As shown, the tensile device is arranged between the main beam of the upper building structure and the secondary beam of the lower building structure, including an upper slide rail 1, a lower slide rail 2 and a connector 3. The upper slide rail 1 and the lower slide rail 2 are in an inverted state and are slidably connected. The top surface of the upper slide rail 1 is a horizontal surface, and the bottom surface is a convex curved surface. The bottom surface is arc-shaped along the length direction of the upper slide rail 1 and is fixedly connected to the lower building structure through the connector 3; the top surface of the lower slide rail 2 is a convex curved surface. The top surface is arc-shaped along the length direction of the lower slide rail 2 and is fixedly connected to the upper building structure through the connector 3. The bottom surface is a horizontal surface, and the most convex point of the bottom surface of the upper slide rail 1 is tightly fitted with the most convex point of the top surface of the lower slide rail 2. The upper slide rail 1 and the lower slide rail 2 can slide freely in two horizontal directions. When the seismic isolation layer does not lift off, the tensile device does not affect the seismic isolation effect of the seismic isolation layer; when the seismic isolation layer lifts off, the hooking effect between the upper slide rail 1 and the lower slide rail 2 prevents the seismic isolation layer from lifting off, thereby improving the tensile capacity of the seismic isolation layer, avoiding damage to the friction pendulum bearing, and reducing or eliminating the lifting of the seismic isolation layer under rare earthquakes.

[0025] Preferably, both the upper and lower rails 1 and 2 are metal rails with identical dimensions. The convex surface of the upper rail 1 is provided with a wear-resistant layer, such as a polytetrafluoroethylene layer, a modified polytetrafluoroethylene sheet, or a modified ultra-high molecular weight polyethylene sheet. The convex surface of the lower rail 2 is provided with a stainless steel layer, enhancing the wear resistance of the tensile device and extending its service life. The upper and lower rails 1 and 2 can be constructed of box-shaped materials, saving construction materials.

[0026] The tensile device has a cross structure. The direction of the upper slide rail 1 is consistent with the length direction of the main beam of the upper building structure, and the direction of the lower slide rail 2 is consistent with the length direction of the secondary beam of the lower building structure. The curvature of the bottom surface of the upper slide rail 1 and the top surface of the lower slide rail 2 are the same.

[0027] The connector 3 includes a first connector and a second connector. The first connector is located at the bottom of the upper rail 1 and the top and bottom of the lower rail 2. The second connector is located within the upper and lower building structures and corresponds to the first connector. The first connector is connected to the second connector via high-strength bolts, thereby securing the upper and lower rails 1 and 2 to the building structure. The first connectors are symmetrically located at both ends of the bottom of the upper rail 1 and the top of the lower rail 2. Horizontal sections are located at the bottom of the upper rail 1 and the top of the lower rail 2 corresponding to the first connectors to facilitate overall horizontal adjustment.

[0028] The first connector is a vertically arranged ear plate, and the second connector is an I-beam, which is fixed to the building structure by anchor bolts. Preferably, a vertical waist-shaped hole is provided on the upper flange of the I-beam to facilitate the position adjustment of the tensile device.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cross-type tensile device used in conjunction with a friction pendulum isolation support, characterized by: It comprises an upper slide rail (1), a lower slide rail (2) and a connecting member (3), wherein the upper slide rail (1) and the lower slide rail (2) are in an inverted state and are arranged to slide relative to each other, and the upper slide rail (1) is fixedly connected to the lower structure through the connecting member (3); the lower slide rail (2) is fixedly connected to the upper structure through the connecting member (3); The top surface of the upper slide rail (1) is a horizontal surface, the bottom surface is a convex surface, and is fixedly connected to the lower structure via a connecting member (3); the top surface of the lower slide rail (2) is a convex surface, the bottom surface is a horizontal surface, and is fixedly connected to the upper structure via a connecting member (3); the most convex point of the bottom surface of the upper slide rail (1) is tightly fitted with the most convex point of the top surface of the lower slide rail (2).

2. The cross-type tensile device used in conjunction with a friction pendulum isolation support according to claim 1, characterized in that: The upper slide rail (1) and the lower slide rail (2) are arranged in a cross-shaped manner in the horizontal direction, and the curvature of the bottom surface of the upper slide rail (1) and the top surface of the lower slide rail (2) are the same.

3. The cross-type tensile device used in conjunction with a friction pendulum isolation support according to claim 1, characterized in that: The connecting member (3) comprises a first connecting body and a second connecting body. The first connecting body is provided on both the upper slide rail (1) and the lower slide rail (2). The second connecting body is provided corresponding to the first connecting body. A reserved hole is provided on the first connecting body and the first connecting body is connected to the second connecting body via high-strength bolts.

4. The cross-type tensile device used in conjunction with a friction pendulum isolation support according to claim 1, characterized in that: The upper slide rail (1) is a metal slide rail, and a wear-resistant layer is provided on its convex surface.

5. The cross-type tensile device used in conjunction with a friction pendulum isolation support according to claim 1, characterized in that: A stainless steel metal layer is provided on the convex surface of the lower sliding rail (2).

6. The cross-type tensile device used in conjunction with a friction pendulum isolation support according to claim 3, characterized in that: Horizontal sections are provided at the bottom of the upper slide rail (1) and the top of the lower slide rail (2) corresponding to the positions of the first connector.

7. The cross-type tensile device used in conjunction with a friction pendulum isolation support according to claim 3, characterized in that: The first connector is a vertically arranged ear plate, and the second connector is an I-beam. The I-beam is fixedly connected to the building structure through anchor bolts, and a vertical waist-shaped hole is opened on the upper flange of the I-beam.

Images