An assembled underground station rapid emergency repair device

Abstract

The utility model relates to the field of building construction equipment, a kind of quick emergency repair device of assembly underground station, including one first inclined support, one second inclined support and at least one vertical support, and with the equal number of anchor plate of first inclined support, second inclined support and vertical support total;First inclined support and second inclined support are symmetrically arranged, and fixedly connected;Vertical support one end is respectively fixedly connected with first inclined support and second inclined support;Anchor plate is respectively fixedly connected with vertical support, first inclined support and second inclined support, anchor plate is used to the quick emergency repair device of assembly underground station through anchor plate and the detachable threaded connection of assembly component;Overall height is less than or equal to 700mm.When the assembly component of the assembly structure of subway tunnel is damaged due to various reasons, the damaged assembly component can be quickly repaired temporarily, to ensure that the subway can operate normally during operation, and the damaged assembly component can be effectively relieved to continue to be damaged, to avoid pedestrian retention and traffic congestion.

Description

Technical Field

[0001] This utility model relates to the field of building construction equipment, and in particular to a prefabricated underground station rapid emergency repair device. Background Technology

[0002] The application of prefabricated structures in the construction industry is becoming increasingly widespread, and the prefabrication rate of underground railway stations is growing rapidly. The application of prefabricated underground railway stations in my country is still in its early stages. Current research on prefabricated underground railway stations mainly focuses on the stress analysis of prefabricated components and on-site construction methods for prefabricated components.

[0003] Referring to current repair techniques for cast-in-place structures, when a component is damaged, the first step is to support the damaged component to reduce the load and mitigate the tendency to fail. Secondly, an appropriate repair method is selected based on the type of damage. Finally, the supports are removed after repair. A specific solution involves installing diagonal braces: one end of the brace rests against the component requiring support, while the other end rests on the ground. The diagonal brace provides a reaction force opposite to the damaged force, thus achieving a balancing effect. However, diagonal braces are mainly used for columns and walls, and in scenarios where the distance from the end of the brace in contact with the ground to the component is generally large. In subway tunnels with limited space, the width of the support cannot exceed 700mm. Excessive support width will affect subway operation in the tunnel; conversely, if the support width requirement is met, a length that is too short or too long will affect the support effect. Therefore, when subway tunnel components are damaged, subway operation must be stopped. Currently, there is a lack of emergency temporary repair devices that can quickly restore normal subway operation within the limited space of a subway tunnel.

[0004] Therefore, it is necessary to provide a prefabricated rapid emergency repair device for underground stations to solve the above-mentioned technical problems. Utility Model Content

[0005] To overcome the current lack of emergency temporary repair devices that can quickly restore subway operation within the limited space of a subway tunnel when subway components are damaged and the subway is forced to stop, this utility model provides a prefabricated rapid emergency repair device for underground stations.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solutions:

[0007] A prefabricated underground station rapid emergency repair device includes a first inclined support, a second inclined support, and at least one vertical support, as well as anchor plates equal in number to the sum of the first, second, and vertical supports. The first and second inclined supports are symmetrically arranged along a central inclined axis and are fixedly connected. One end of each vertical support is fixedly connected to the first and second inclined supports. The anchor plates are fixedly connected to the other ends of the vertical supports, the first and second inclined supports, and the prefabricated underground station rapid emergency repair device is used to detachably threadedly connect the device to the prefabricated components. The overall height is less than or equal to 700 mm.

[0008] As a further embodiment of this utility model, it also includes a horizontal support, wherein the first diagonal support and the second diagonal support are fixedly connected through the horizontal support, and the vertical support is fixedly connected to the first diagonal support and the second diagonal support through the horizontal support.

[0009] As a further embodiment of this utility model, it also includes a prestressed screw, wherein the prestressed screw is threadedly connected to both ends of the horizontal support in the longitudinal direction.

[0010] As a further embodiment of this utility model, it also includes an anchor plate fixing component, wherein the anchor plate is detachably threadedly connected to the assembled component through the anchor plate fixing component.

[0011] As a further embodiment of this utility model: the vertical support, the first diagonal support, the second diagonal support, and the horizontal support are square tubes or round tubes.

[0012] As a further embodiment of this utility model, the number of vertical supports is three.

[0013] As a further embodiment of this utility model: the vertical support, the first inclined support, the second inclined support, the horizontal support and the anchor plate are made of Q345.

[0014] The beneficial effects of the prefabricated rapid emergency repair device for underground stations involved in this utility model are as follows:

[0015] Because of the axially symmetrical first and second inclined supports, the overall stress distribution of the prefabricated underground station rapid emergency repair device is not uneven from left to right. At the same time, through the decomposition of forces and the support in the same direction as the vertical support, the damaged prefabricated components are supported by anchor plates. Furthermore, the overall height is set to be less than or equal to 700mm (i.e., less than the distance between the prefabricated components and the outer wall of the subway car). When the prefabricated components of the subway tunnel prefabricated structure are damaged due to various reasons, the prefabricated components can be quickly and temporarily repaired. This ensures that the installation of the prefabricated underground station rapid emergency repair device does not interfere with or hinder the normal operation of the subway during operation, effectively alleviates further damage to the damaged prefabricated components, and avoids pedestrian congestion and traffic jams. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural view of the prefabricated underground station rapid emergency repair device of this utility model;

[0017] Figure 2 This is the main view of the prefabricated underground station rapid emergency repair device of this utility model;

[0018] Figure 3 This is a top view of the prefabricated underground station rapid emergency repair device of this utility model;

[0019] Figure 4 This is a schematic diagram illustrating the use of the prefabricated underground station rapid emergency repair device of this utility model;

[0020] Figure 5 This is a stress analysis diagram of the prefabricated underground station rapid emergency repair device of this utility model.

[0021] In the diagram: 100 - Prefabricated underground station rapid emergency repair device, 110 - Anchor plate, 120 - Anchor plate fastener, 121 - Anchor plate nut, 122 - Anchor bolt, 130 - Vertical support, 140 - Horizontal support, 150 - First diagonal support, 160 - Second diagonal support, 170 - Prestressed bolt, 200 - Prefabricated component, 300 - Steel channel, 310 - Steel channel body, 320 - Steel channel nut, 330 - Steel channel bolt. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of a prefabricated underground station rapid emergency repair device, in conjunction with the accompanying drawings and embodiments, is provided. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figure 1 , Figure 2 , Figure 3 As shown, a prefabricated underground station rapid emergency repair device 100 includes a first inclined support 150, a second inclined support 160, at least one vertical support 130, a horizontal support 140, a prestressed bolt 170, and anchor plate fasteners 120, as well as anchor plates 110 in number equal to the sum of the vertical support 130, the first inclined support 150, and the second inclined support 160. All anchor plates 110 are located on the same horizontal plane, and the number of anchor plate fasteners 120 is an integer multiple of the number of anchor plates 110. The first inclined support 150 and the second inclined support 160... The components are arranged symmetrically along a central axis and fixedly connected, preferably by welding. One end of the vertical support 130 is fixedly connected to the first inclined support 150 and the second inclined support 160, preferably by welding. The anchor plate 110 is fixedly connected to the other end of the vertical support 130, the first inclined support 150, and the second inclined support 160, preferably by welding. The anchor plate 110 is used to detachably thread the prefabricated underground station rapid emergency repair device 100 to the prefabricated component 200. The overall height L is less than or equal to 700 mm. The anchor plate fixing component 120 includes an anchor plate nut 121 and an anchor bolt 122. The anchor plate 110 is connected to the prefabricated component 200 through the anchor plate fixing component 120, preferably by a detachable threaded connection.

[0026] The application scenario of this utility model is as follows: During subway operation, when a component of the prefabricated structure of a subway tunnel is damaged due to various reasons, subway operation should be immediately suspended. Professional technicians should carry a prefabricated prefabricated underground station rapid emergency repair device 100 to the damaged location. The prefabricated underground station rapid emergency repair device 100 is installed on the damaged prefabricated component 200, and connected to the prefabricated component 200 by anchor plate nuts 121 and anchor bolts 122. Then, prestressed bolts 170 are used to apply pre-tightening force from both sides towards the middle, so that the prefabricated underground station rapid emergency repair device 100 and the prefabricated component 200 share the destructive force to mitigate the tendency of damage, temporarily and quickly repairing the damaged prefabricated component 200 to ensure the subway can operate normally during operation. Then, during the subway shutdown at night, the damaged component is thoroughly repaired.

[0027] Because of the axially symmetrical first and second diagonal supports 150 and 160, the overall force distribution of the prefabricated underground station rapid emergency repair device 100 is prevented from being uneven from left to right. Simultaneously, through force decomposition and in the same direction as the vertical support 130, the anchor plate 110 supports the damaged prefabricated component 200. Furthermore, the overall height L is set to be less than or equal to 700mm (i.e., less than the distance between the prefabricated component and the outer wall of the subway car). When the prefabricated component 200 of the subway tunnel prefabricated structure is damaged due to various reasons, it can be quickly and temporarily repaired, ensuring that the installation of the prefabricated underground station rapid emergency repair device 100 does not interfere with or obstruct the normal operation of the subway. This also avoids pedestrian congestion and traffic jams.

[0028] like Figure 1 , Figure 2 , Figure 3 As shown, the simplified structure is an isosceles triangle structure where the first diagonal support 150, the second diagonal support 160, and the prefabricated component 200 form a triangle. Preferably, the first diagonal support 150, the second diagonal support 160, the horizontal support 140, and the prefabricated component 200 form an isosceles trapezoid. Preferably, there are three vertical supports 130, with the spacing between two adjacent supports equal to the width of the prefabricated component 200, ensuring that the first diagonal support 150, the second diagonal support 160, and each of the vertical supports 130 effectively support each damaged prefabricated component 200. The first diagonal support 150 and the second diagonal support 160 are fixedly connected via the horizontal support 140; preferably, a welded connection is used. The vertical support 130 is fixedly connected to the first diagonal support 150 and the second diagonal support 160 via the horizontal support 140; preferably, a welded connection is used.

[0029] like Figure 1 , Figure 2, Figure 3 As shown, the prestressed screw 170 is threaded longitudinally to both ends of the horizontal support 140 and inserted into the horizontal support 140. When the horizontal support 140 is short, one prestressed screw 170 axially passes through the center of the horizontal support 140. When the horizontal support 140 is long, two prestressed screws 170 are used at both ends of the horizontal support 140. The length of the horizontal support 140 can be prefabricated to different specifications according to the width of the prefabricated component 200. The function of the prestressed screw 170 is to apply a preload to the horizontal support 140, the first inclined support 150, the second inclined support 160, and the vertical support 130, and the force applied by the prestressed screw 170 is ultimately transmitted to the prefabricated component 200 through the anchor plate 110.

[0030] like Figure 1 , Figure 2 , Figure 3 As shown, the vertical support 130, the first diagonal support 150, the second diagonal support 160 and the horizontal support 140 are square tube structures, or they can be round tube structures (not shown in the figure).

[0031] like Figure 1 , Figure 2 , Figure 3 As shown, the vertical support 130, the first diagonal support 150, the second diagonal support 160, the horizontal support 140, and the anchor plate 110 are made of Q345 steel.

[0032] like Figure 4 As shown, the prefabricated underground station rapid emergency repair device 100 can be installed on partially damaged prefabricated components 200, or on prefabricated components 200 with large areas of damage connected vertically by steel channels 300. It can also be used on prefabricated components 200 with even larger areas of damage (e.g., along the length, not shown in the figure), and can be installed in multiple parts in both the horizontal and vertical directions. The steel channel 300 includes a steel channel body 310, a steel channel nut 320, and a steel channel bolt 330. The various prefabricated components 200 are detachably connected to each other via the steel channel 300.

[0033] like Figure 5 As shown, taking the three vertical support structures 130 as an example, the forces on the prefabricated underground station rapid emergency repair device 100 are as follows: by applying a force towards the middle at both ends of the horizontal support 140, the horizontal support 140 is subjected to two axial forces towards the center, and the vertical support 130 is subjected to shear force.

[0034] The prefabricated underground station rapid emergency repair device 100 may include 8 nodes, namely node 1, node 2, node 3, node 4, node 5, node 6, node 7 and node 8, and include 7 support segments, namely support (1), support (2), support (3), support (4), support (5), support (6) and support (7). Preload is applied at nodes 6 and 8. The stress analysis of each support and node is shown in the table below:

[0035] Serial Number Component Name / Node Name Force 1 Support (1) Axial force, shear force, bending moment 2 Support (2) Axial force, shear force, bending moment 3 Support (3) Axial force, shear force, bending moment 4 Support (4) Axial force, shear force, bending moment 5 Support (5) Axial force, shear force, bending moment 6 Support (6) Axial force 7 Support (7) Axial force, shear force, bending moment 8 Node 1 Horizontal force, vertical force, torque 9 Node 2 Horizontal force, vertical force, torque 10 Node 3 Vertical force 11 Node 4 Horizontal force, vertical force, torque 12 Node 5 Horizontal force, vertical force, torque

[0036] Ultimately, a vertical force is generated at node (3) in the direction of the prefabricated component 200 (after installation, horizontally away from the subway and close to the prefabricated component 200) towards the damaged prefabricated component 200, creating a balance between action and reaction forces. Therefore, installing one prefabricated underground station rapid emergency repair device 100 above and below the damaged prefabricated component 200 can quickly and temporarily repair the prefabricated component 200, effectively mitigating further damage to the damaged prefabricated component 200, ensuring the subway can operate normally during operation, and avoiding pedestrian congestion and traffic jams.

[0037] The above description of the utility model is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A prefabricated rapid emergency repair device (100) for underground stations, characterized in that, The device includes a first inclined support (150), a second inclined support (160), and at least one vertical support (130), as well as anchor plates (110) in number equal to the sum of the first inclined support (150), the second inclined support (160), and the vertical support (130). The first inclined support (150) and the second inclined support (160) are symmetrically arranged on an inclined axis towards the center and are fixedly connected. One end of the vertical support (130) is fixedly connected to the first inclined support (150) and the second inclined support (160), respectively. The anchor plates (110) are fixedly connected to the other ends of the vertical support (130), the first inclined support (150), and the second inclined support (160), respectively. The anchor plates (110) are used to detachably thread the prefabricated underground station rapid emergency repair device (100) to the prefabricated component (200) through the anchor plates (110). The overall height is less than or equal to 700mm.

2. The prefabricated underground station rapid emergency repair device (100) according to claim 1, characterized in that, It also includes a horizontal support (140), the first diagonal support (150) and the second diagonal support (160) are fixedly connected by the horizontal support (140), and the vertical support (130) is fixedly connected to the first diagonal support (150) and the second diagonal support (160) by the horizontal support (140).

3. The prefabricated underground station rapid emergency repair device (100) according to claim 2, characterized in that, It also includes a prestressed screw (170), which is longitudinally threaded to both ends of the horizontal support (140).

4. The prefabricated underground station rapid emergency repair device (100) according to claim 3, characterized in that, It also includes an anchor plate fastener (120), the anchor plate (110) being detachably threadedly connected to the assembled component (200) via the anchor plate fastener (120).

5. The prefabricated underground station rapid emergency repair device (100) according to any one of claims 2 to 4, characterized in that, The vertical support (130), the first diagonal support (150), the second diagonal support (160), and the horizontal support (140) are square or round tubes.

6. The prefabricated underground station rapid emergency repair device (100) according to claim 5, characterized in that, The number of vertical supports (130) is three.

7. The prefabricated underground station rapid emergency repair device (100) according to claim 6, characterized in that, The vertical support (130), the first diagonal support (150), the second diagonal support (160), the horizontal support (140), and the anchor plate (110) are made of Q345 steel.

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