Full-scale test device for the torsion resistance of deformation joints of multi-compartment integrated pipe gallery

Abstract

The invention discloses a full-scale test device for the torsion resistance of a deformation joint of a multi-cabin integrated pipe gallery, comprising a fixing device, a loading device, a force transmission device and an angle and torque detection device. The pipe gallery segment specimen is arranged horizontally, and the fixed pipe gallery segment specimen is connected to the fixing device, the rotating pipe gallery segment specimen is connected to the force transmission device, the force transmission device is connected to the loading device by transmission, the angle and torque detection device is installed on the loading device, and the loading device drives the force transmission device to rotate in a vertical plane and then drives the rotating pipe gallery segment specimen to rotate synchronously. A curve diagram of the relationship between angle and torque can be drawn through the results of the angle and torque detection device detection, so that the torsion condition, deformation characteristics and failure mode of the deformation joint of the pipe gallery segment specimen can be clarified.

Description

Technical Field

[0001] The invention relates to a full-scale testing device for the anti-torsion performance of deformation joints of a multi-cabin integrated pipe gallery. Background Art

[0002] The integrated pipe gallery, called common trench in Japan and common pipeline in Taiwan, refers to the integrated corridor of municipal pipelines in the city, that is, a tunnel space is built underground in the city, and multiple pipelines such as municipal, electricity, communication, gas, water supply and drainage, heat, garbage transportation, etc. are laid in the tunnel space in an intensive manner, and special entrances and exits for personnel, pipelines, inspection ports, hoisting ports, and disaster prevention monitoring and surveillance systems are set up to form a new type of municipal public pipeline integrated facilities, and implement unified planning, design, construction and management. It is mainly suitable for important sections with large traffic flow and many underground pipelines, especially highways, main roads, and planned large urban groups or building complexes.

[0003] The expansion joint is the weak link of the integrated pipe gallery, and its mechanical properties significantly affect the overall mechanical behavior of the lining structure. In order to make the design of the pipe gallery lining structure safe and reasonable, it is necessary to understand the torsion condition, deformation characteristics and failure mode of the expansion joint.

[0004] Therefore, a full-scale testing device for the torsion resistance of deformation joints of multi-cabin integrated pipeline corridors is needed to perform torsion tests on deformation joints of multi-cabin integrated pipeline corridors. Summary of the invention

[0005] The present invention provides a full-scale testing device for the torsion resistance of deformation joints of multi-cabin integrated pipe gallery, which overcomes the shortcomings of the background technology. The technical solution adopted by the present invention to solve the technical problem is:

[0006] A full-scale testing device for the torsional resistance of deformation joint joints of a multi-compartment integrated corridor is applicable to corridor segment specimens. The corridor segment specimens include fixed corridor segment specimens, corridor segment specimen deformation joints and rotating corridor segment specimens connected in sequence. It includes a fixing device for limiting the displacement and rotation of the fixed corridor segment specimens, a loading device for applying torque to the rotating corridor segment specimens, a force transmission device for transmitting the torque of the loading device to the rotating corridor segment specimens, and an angle and torque detection device for detecting the rotation angle and torque of the rotating corridor segment specimens. The corridor segment specimens are arranged horizontally, and the fixed corridor segment specimens are connected to the fixing device, the rotating corridor segment specimens are connected to the force transmission device, the force transmission device is connected to the loading device, and the angle and torque detection device is installed on the loading device. The loading device drives the force transmission device to rotate in a vertical plane and then drives the rotating corridor segment specimen to rotate synchronously.

[0007] In a preferred embodiment: the fixing device includes an outer frame, a fixed hydraulic cylinder, a fixed plate and a raising platform, the raising platform is fixedly connected to the bottom inner part of the outer frame, the fixed hydraulic cylinder is fixedly connected to the top inner part of the outer frame, the fixed plate is connected to the fixed hydraulic cylinder, and the fixed corridor segment specimen is fixedly clamped between the fixed plate and the raising platform.

[0008] In a preferred embodiment: the force transmission device includes an inner frame, a horizontal limit plate and a vertical limit plate, the horizontal limit plate can be slidably mounted on the inner frame up and down, the vertical limit plate can be slidably mounted on the inner frame left and right, an accommodating space is enclosed between the horizontal limit plate and the vertical limit plate, the rotating corridor segment specimen is clamped in the accommodating space, and the loading device is connected to the inner frame.

[0009] In a preferred embodiment: the outer frame extends to the outer periphery of the inner frame, the inner wall of the outer frame is provided with a guide rail, and the outer wall of the inner frame is provided with a guide pulley that can slidably cooperate with the guide rail.

[0010] In a preferred embodiment: the guide rail is in an arc shape, and the center of the guide rail is the same as the rotation axis of the inner frame.

[0011] In a preferred embodiment: the force transmission device also includes a supporting hydraulic cylinder, and the top end of the supporting hydraulic cylinder can be against or separated from the horizontal limit plate.

[0012] In a preferred embodiment: the loading device includes a loading motor, a loading plate and a clamping plate assembly, the loading plate is transmission-connected to the loading motor, the clamping plate assembly includes two clamping plates arranged opposite to each other and a locking bolt, one end of the two clamping plates is fixedly connected to the loading plate, and the other ends of the two clamping plates are suspended, the edge of the inner frame can extend between the two clamping plates, and the two clamping plates are locked together with the edge of the inner frame by the locking bolt.

[0013] In a preferred embodiment: the loading device further comprises a support frame for supporting a loading plate, and the loading plate is rotatably mounted on the support frame.

[0014] In a preferred embodiment: the angle and torque detection device includes an angle sensor and a torque sensor, and the angle sensor and the torque sensor are both installed on the loading plate.

[0015] Compared with the background technology, this technical solution has the following advantages:

[0016] 1. The test device has a clear principle, simple structure, and easy experimental operation. The fixing device fixes the fixed pipe gallery segment specimen, and then applies torque in the horizontal direction through the loading device and drives the rotating pipe gallery segment specimen to rotate through the force transmission device until the deformation joint of the pipe gallery segment specimen is destroyed. At this time, the relationship curve between angle and torque can be drawn through the results of the angle and torque detection device, so as to clarify the torsion condition, deformation characteristics and failure mode of the deformation joint of the pipe gallery segment specimen. The size of the pipe gallery segment specimen is the same as the actual pipe gallery segment size, which is a full-scale setting, and the test results are more accurate.

[0017] 2. The horizontal limit plate can be slidably mounted on the inner frame up and down, and the vertical limit plate can be slidably mounted on the inner frame left and right, so that it can be adapted to pipe gallery segment specimens of different sizes.

[0018] 3. The center of the guide rail is the same as the rotation axis of the inner frame, which can further ensure that the rotating corridor segment specimen always rotates around the same center, making the test result more accurate.

[0019] 4. The force transmission device also includes a supporting hydraulic cylinder. Before placing the rotating pipe gallery segment specimen into the accommodation space, the supporting hydraulic cylinder can be used to limit the horizontal limit plate to prevent the rotating pipe gallery segment specimen from rotating before the test, thereby affecting the test results. After the rotating pipe gallery segment specimen and the accommodation space are assembled, the supporting hydraulic cylinder can be separated from the horizontal limit plate to avoid interfering with the rotation of the horizontal limit plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 An overall schematic diagram of a full-scale testing device for the torsional resistance of deformation joints of a multi-cabin integrated pipeline corridor according to a preferred embodiment is shown.

[0022] Figure 2 A schematic structural diagram of a loading device according to a preferred embodiment is shown.

[0023] Figure 3 A structural schematic diagram of a fixing device of a preferred embodiment is depicted.

[0024] Figure 4 A schematic structural diagram of a force transmission device of a preferred embodiment is depicted.

[0025] Loading device—1; loading plate—11; loading motor—12; clamping plate—13; supporting frame—14; angle sensor—111; torque sensor—112; locking bolt—131; force transmission device—2; inner frame—21; horizontal limit plate—22; vertical limit plate—23; fixed hydraulic cylinder—24; guide pulley—211; guide rail—212; fixing device—3; outer frame—31; fixed hydraulic cylinder—32; fixing plate—33; raising platform—34; guide slide rail—311; pipe gallery segment specimen—4; fixed pipe gallery segment specimen—41; rotating pipe gallery segment specimen—42; pipe gallery segment specimen deformation joint—43. DETAILED DESCRIPTION

[0026] In the claims, description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are for distinguishing different objects rather than for describing a specific order.

[0027] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present invention.

[0028] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, the terms "fixed connection" and "fixed connection" should be understood in a broad sense, that is, any connection method without any displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0029] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0030] Please refer to Figures 1 to 4 A preferred embodiment of a full-scale test device for the torsion resistance of deformation joints of a multi-compartment integrated pipe gallery is applicable to a pipe gallery segment specimen 4, which comprises a fixed pipe gallery segment specimen 41, a pipe gallery segment specimen deformation joint 43 and a rotating pipe gallery segment specimen 42 connected in sequence. In this embodiment, the thickness of the pipe gallery segment specimen deformation joint 43 is about 30 mm.

[0031] The full-scale testing device for the torsional resistance of deformation joint joints of multi-compartment integrated pipe gallery comprises a fixing device 3 for limiting the displacement and rotation of a fixed pipe gallery segment specimen 41, a loading device 1 for applying torque to a rotating pipe gallery segment specimen 42, a force transmission device 2 for transmitting the torque of the loading device 1 to the rotating pipe gallery segment specimen 42, and an angle and torque detection device for detecting the rotation angle and torque of the rotating pipe gallery segment specimen 42.

[0032] The pipe gallery segment specimen 4 is arranged horizontally, which is the same as the arrangement of the actual pipe gallery segment. The pipe gallery segment specimen 4 in this embodiment is a rectangular parallelepiped. It can also be a cylindrical body as needed, but it is not limited to this. Among them, the fixed pipe gallery segment specimen 41 is connected to the fixing device 3, the rotating pipe gallery segment specimen 42 is connected to the force transmission device 2, the force transmission device 2 is connected to the loading device 1, and the angle and torque detection device is installed on the loading device 1. The loading device 1 drives the force transmission device 2 to rotate in the vertical plane and then drives the rotating pipe gallery segment specimen 42 to rotate synchronously.

[0033] like Figure 3 As shown, the fixing device 3 includes an outer frame 31, a fixed hydraulic cylinder 32, a fixed plate 33 and a raised platform 34, the raised platform 34 is fixedly connected to the inner bottom of the outer frame 31, the fixed hydraulic cylinder 32 is fixedly connected to the inner top of the outer frame 31, the fixed plate 33 is connected to the fixed hydraulic cylinder 32, and the fixed pipe gallery segment specimen 41 is fixedly clamped between the fixed plate 33 and the raised platform 34. That is, the fixed hydraulic cylinder 32 can adjust the spacing between the fixed plate 33 and the raised platform 34 at any time to adapt to different sizes of the fixed pipe gallery segment specimen 41.

[0034] like Figure 4 As shown, the force transmission device 2 includes an inner frame 21, a horizontal limit plate 22 and a vertical limit plate 23. The horizontal limit plate 22 can be slidably mounted on the inner frame 21 up and down, and the vertical limit plate 23 can be slidably mounted on the inner frame 21 left and right. An accommodating space is enclosed between the horizontal limit plate 22 and the vertical limit plate 23. The rotating pipe gallery segment specimen 42 is clamped in the accommodating space, and the loading device 1 is connected to the inner frame 21.

[0035] Specifically, the inner frame 21 is square, and guide rails are arranged on its four sides. Two horizontal limit plates 22 are provided and arranged at intervals up and down. The horizontal limit plate 22 located at the bottom is integrally formed with the inner frame 21. The two ends of the horizontal limit plate 22 located at the top are provided with pulleys, and the pulleys at both ends of the horizontal limit plate 22 are respectively slidably matched with the guide rails of the two vertical sides of the inner frame 21. Two vertical limit plates 23 are provided and arranged at intervals left and right. Pullies are respectively provided at both ends of the vertical limit plate 23. The pulleys at both ends of the vertical limit plate 23 are respectively slidably matched with the guide rails of the two horizontal sides of the inner frame 21. Therefore, the size of the accommodating space can be adjusted according to the size of the rotating pipe gallery segment specimen 42. After the adjustment is completed, the horizontal limit plate 22 and the vertical limit plate 23 are fixed by screws. At this time, the rotating pipe gallery segment specimen 42, the horizontal limit plate 22, the vertical limit plate 23 and the inner frame 21 can be rotated synchronously.

[0036] like Figure 1 As shown, the outer frame 31 extends to the outer periphery of the inner frame 21, the inner wall of the outer frame 31 is provided with a guide rail 311, and the outer wall of the inner frame 21 is provided with a guide pulley 211 that can slide with the guide rail 311. Thus, the inner frame 21 can rotate relative to the outer frame 31 in a vertical plane.

[0037] In this embodiment, the guide rail 311 is in an arc shape, and the center of the guide rail 311 is the same as the rotation axis of the inner frame 21. Moreover, the arc length of the guide rail 311 needs to be greater than the maximum arc length that the rotating pipe gallery segment specimen 42 can rotate.

[0038] In this embodiment, the force transmission device 2 also includes a supporting hydraulic cylinder 24, the top end of which can be abutted against or separated from the horizontal limit plate 22 located below. Before placing the rotating pipe gallery segment specimen 42 into the accommodating space, the horizontal limit plate 22 located below can be limited and supported by the supporting hydraulic cylinder 24 to prevent the rotating pipe gallery segment specimen 42 from rotating before the test, thereby affecting the test results. After the rotating pipe gallery segment specimen 42 is assembled with the accommodating space, the supporting hydraulic cylinder 24 can be separated from the horizontal limit plate 22 to avoid interfering with the rotation of the horizontal limit plate 22. Moreover, the height of the horizontal limit plate 22 located below is consistent with that of the raising platform 34.

[0039] like Figure 2As shown, the loading device 1 includes a loading motor 12, a loading plate 11 and a clamping plate assembly, the loading plate 11 is transmission-connected to the loading motor 12, a plurality of clamping plate assemblies are provided, and each clamping plate assembly includes two clamping plates 13 arranged opposite to each other and a locking bolt 131, one end of the two clamping plates 13 is fixedly connected to the loading plate 11, and the other ends of the two clamping plates 13 are suspended, the edge of the inner frame 21 can extend between the two clamping plates 13, and the two clamping plates 13 are locked together with the edge of the inner frame 21 by the locking bolt 131.

[0040] In this embodiment, the loading device 1 further comprises a support frame 14 for supporting the loading plate 11 , and the loading plate 11 is rotatably mounted on the support frame 14 .

[0041] The angle and torque detection device includes an angle sensor 111 and a torque sensor 112 , and both the angle sensor 111 and the torque sensor 112 are mounted on the loading plate 11 .

[0042] The preparations required before the test are:

[0043] First, the hydraulic cylinder 24 is supported against the horizontal limit plate 22 located below;

[0044] Next, the pipe gallery segment specimen 4 is arranged horizontally, and the fixed pipe gallery segment specimen 41 is extended between the fixed plate 33 and the raised platform 34, and the rotating pipe gallery segment specimen 42 is extended into the accommodating space;

[0045] Next, the fixed hydraulic cylinder 31 is started to drive the fixed plate 33 to move downward until the fixed plate 33 is pressed against the top of the fixed pipe gallery segment specimen 41 until the fixed pipe gallery segment specimen 41 cannot rotate or move;

[0046] Then, the positions of the horizontal limit plate 22 and the vertical limit plate 23 located at the top are adjusted until the size of the accommodating space and the rotating pipe gallery segment specimen 42 are just adapted and there is no relative displacement between the two;

[0047] At this time, the loading motor 12 can be started, and the loading motor 12 drives the loading plate 11 to rotate, and then drives the inner frame 21 and the horizontal limit plate 22 and the vertical limit plate 23 to rotate synchronously in the vertical plane, and then drives the rotating corridor segment specimen 42 to rotate synchronously until the deformation joint 43 of the corridor segment specimen is deformed and fractured; finally, a curve diagram of the relationship between angle and torque can be drawn through the angle and torque measuring device, so as to clarify the torsional condition, deformation characteristics and failure mode of the deformation joint 43 of the corridor segment specimen.

[0048] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A full-scale test device for the torsion resistance of deformation joints of multi-compartment integrated pipe gallery, which is suitable for pipe gallery segment specimens, which include fixed pipe gallery segment specimens, pipe gallery segment specimen deformation joints and rotating pipe gallery segment specimens connected in sequence, and is characterized by: It includes a fixing device for limiting the displacement and rotation of a fixed pipe gallery segment specimen, a loading device for applying torque to the rotating pipe gallery segment specimen, a force transmission device for transmitting the torque of the loading device to the rotating pipe gallery segment specimen, and an angle and torque detection device for detecting the rotation angle and torque of the rotating pipe gallery segment specimen. The pipe gallery segment specimen is arranged horizontally, and the fixed pipe gallery segment specimen is connected to the fixing device, the rotating pipe gallery segment specimen is connected to the force transmission device, the force transmission device is connected to the loading device by transmission, the angle and torque detection device is installed on the loading device, and the loading device drives the force transmission device to rotate in a vertical plane and then drives the rotating pipe gallery segment specimen to rotate synchronously; The fixing device comprises an outer frame; The force transmission device comprises an inner frame, a horizontal limit plate and a vertical limit plate, wherein the horizontal limit plate is slidably mounted on the inner frame, and the vertical limit plate is slidably mounted on the inner frame. An accommodating space is enclosed between the horizontal limit plate and the vertical limit plate, and the rotating pipe gallery segment specimen is clamped in the accommodating space. The loading device is connected to the inner frame; The outer frame extends to the outer periphery of the inner frame, the inner wall of the outer frame is provided with a guide rail, and the outer wall of the inner frame is provided with a guide pulley that can slidably cooperate with the guide rail.

2. The full-scale testing device for the torsion resistance of deformation joints of multi-cabin integrated pipe gallery according to claim 1 is characterized in that: The fixing device also includes a fixed hydraulic cylinder, a fixed plate and a raising platform. The raising platform is fixedly connected to the bottom of the outer frame, the fixed hydraulic cylinder is fixedly connected to the top of the outer frame, the fixed plate is connected to the fixed hydraulic cylinder, and the fixed pipe gallery segment specimen is fixedly clamped between the fixed plate and the raising platform.

3. The full-scale testing device for the torsion resistance of deformation joints of multi-cabin integrated pipe gallery according to claim 2 is characterized by: The guide rail is in an arc shape, and the center of the guide rail is the same as the rotation axis of the inner frame.

4. The full-scale testing device for the torsion resistance of deformation joints of multi-cabin integrated pipe gallery according to claim 2 is characterized by: The force transmission device also includes a supporting hydraulic cylinder, the top end of which can be against or separated from the horizontal limit plate.

5. The full-scale testing device for the torsion resistance of deformation joints of multi-cabin integrated pipe gallery according to claim 2 is characterized by: The loading device includes a loading motor, a loading plate and a clamping plate assembly, wherein the loading plate is drivingly connected to the loading motor, and the clamping plate assembly includes two clamping plates arranged opposite to each other and a locking bolt, wherein one end of the two clamping plates is fixedly connected to the loading plate, and the other ends of the two clamping plates are suspended, and the edge of the inner frame can be extended between the two clamping plates, and the two clamping plates are locked together with the edge of the inner frame by the locking bolt.

6. The full-scale testing device for the torsion resistance of deformation joints of multi-cabin integrated pipe gallery according to claim 5 is characterized in that: The loading device also includes a support frame for supporting a loading plate, and the loading plate is rotatably mounted on the support frame.

7. The full-scale testing device for the torsion resistance of deformation joints of multi-cabin integrated pipe gallery according to claim 5 is characterized by: The angle and torque detection device comprises an angle sensor and a torque sensor, and both the angle sensor and the torque sensor are mounted on a loading plate.

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