Track plate static load test rack and test device

Abstract

The utility model discloses a track slab static load test rack and a test device, the track slab static load test rack comprises a base, a support frame and a counter-force frame, the base comprises transverse I-shaped steel and longitudinal I-shaped steel, the transverse I-shaped steel and the longitudinal I-shaped steel are arranged in a crossed manner and form a hollow structure, and the counter-force frame is arranged on the support frame. The support frame is placed on the base, a plurality of reaction frames are fixedly connected above the base, each reaction frame is transversely arranged, all the reaction frames are longitudinally arranged at intervals, and the static load test device comprises the static load test rack. According to the track plate static load test rack and the track plate static load test device, the steel structure base is adopted, a concrete test platform is prevented from being built before a track plate static load test is carried out, the working efficiency can be improved, a test site can be flexibly moved and changed according to requirements, and the efficiency of the track plate static load test can be improved.

Description

Technical Field

[0001] The utility model relates to the field of track plate testing and experiment, in particular to a track plate static load test frame and a test device. Background Art

[0002] The standard specification for track slab production, "Technical Conditions for Ballastless Tracks in Urban Rail Transit", stipulates that track slabs should be inspected in batches before leaving the factory. Track slabs of the same model made of the same material and the same process shall be inspected in batches of 160 pieces. If there are less than 160 pieces, they shall be counted as one batch. During the factory inspection, one track slab with qualified dimensions and appearance quality shall be randomly selected for static load test. If there are no cracks in one longitudinal and two transverse sections of the track slab, the static load test shall be considered as qualified.

[0003] At present, the static load test of track slabs is carried out on a static load test bench or static load test frame with a base formed by pouring concrete or reinforced concrete. Before the static load test, foundation treatment and pouring of the test platform base are required, and temporary facilities need to be built, which is not conducive to ensuring work efficiency and energy conservation and environmental protection. In addition, after the pouring is completed, the test site is fixed and cannot be flexibly moved. The track slab to be tested needs to be transported to a fixed static load test platform for testing, which is not conducive to improving the efficiency of the static load test of the track slab. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that the existing track plate static load test platform adopts concrete or reinforced concrete as the base, and the test platform cannot be flexibly moved after the base is cast, which is not conducive to improving the efficiency of the track plate static load test, and provides a track plate static load test frame and test device.

[0005] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0006] A track plate static load test frame comprises a base, a support frame and a reaction frame, wherein the base comprises a transverse I-beam and a longitudinal I-beam, wherein the transverse I-beam and the longitudinal I-beam are cross-arranged to form a hollow structure, and the support frame is placed on the base, and a plurality of reaction frames are fixedly connected above the base, wherein each reaction frame is arranged transversely, and all the reaction frames are arranged at intervals in the longitudinal direction.

[0007] The utility model provides a track plate static load test frame, comprising a base, a support frame and a reaction frame, the base can provide a fixed position for the reaction frame, the base comprises a transverse I-beam and a longitudinal I-beam, the transverse I-beam and the longitudinal I-beam are cross-arranged and fixedly connected, a steel structure base is used to replace a concrete structure base, the connection measures between the steel structures are simple, convenient and quick compared to pouring concrete, which is conducive to ensuring work efficiency, and the transverse I-beam and the longitudinal I-beam together constitute a hollow base, the base is light in weight, and can be flexibly moved to change the test location. Compared with the existing static load test frame using a concrete base, which can only perform static load tests at fixed test sites, the static load test frame of the utility model can flexibly change the test site according to needs, which is conducive to improving the efficiency of the static load test of the track plate; the support frame is placed on the base, and the support frame can provide support for the track plate when the track plate is subjected to a static load test. A plurality of reaction frames are fixedly connected above the base, and the reaction frames can provide a reaction force for the jack. Each reaction frame is arranged horizontally, and all the reaction frames are arranged at intervals along the longitudinal direction, so as to ensure that multiple loading points can be set according to actual needs to perform static load tests on the track plate. The utility model is a track plate static load test frame, which adopts a steel structure base, avoids the need to first build a concrete test platform before conducting a track plate static load test, which is conducive to improving work efficiency, and can flexibly move and change the test site according to needs, which is conducive to improving the efficiency of the track plate static load test.

[0008] As a preferred embodiment of the utility model, the base includes at least four mutually parallel transverse I-beams and at least three mutually parallel longitudinal I-beams, wherein two of the transverse I-beams and two longitudinal I-beams are welded to form a rectangular frame, and the remaining transverse I-beams and longitudinal I-beams are arranged in the rectangular frame and welded to the rectangular frame respectively. That is, the base is a rectangular base as a whole, with a stable structure, which meets the requirements of the track plate static load test, and the base with such a shape and structure is convenient for processing and manufacturing, and the transverse I-beams and longitudinal I-beams are connected by welding, which can ensure the connection strength and is conducive to structural stability; except for the two transverse I-beams and two longitudinal I-beams that form the rectangular frame, the remaining transverse I-beams and longitudinal I-beams can not only enhance the structural strength of the rectangular frame, but also provide support for the support frame and provide a placement position for the support frame.

[0009] As a preferred embodiment of the utility model, the base includes seven transverse I-beams and four longitudinal I-beams, wherein two transverse I-beams and two longitudinal I-beams are welded to form a rectangular frame, and the other five transverse I-beams are arranged at intervals in the rectangular frame, and the other two longitudinal I-beams are arranged on both sides of the longitudinal center line of the rectangular frame and the two longitudinal I-beams are fitted together. The five transverse I-beams are arranged at intervals in the rectangular frame, which can better increase the structural strength inside the rectangular frame and reduce the risk of deformation of the rectangular frame; the two longitudinal I-beams are arranged on both sides of the longitudinal center line of the rectangular frame and the two longitudinal I-beams are fitted together, and the longitudinal I-beams can not only reduce the risk of deformation of the rectangular frame, but also provide support and placement position for the support frame when the track plate is subjected to a longitudinal static load test.

[0010] As a preferred solution of the utility model, at least four reaction frames are included, two of which are first reaction frames, and the two first reaction frames are respectively arranged above the two transverse I-beams that form the rectangular frame, and the remaining reaction frames are second reaction frames, and the second reaction frames are arranged between the two first reaction frames at intervals. At least four reaction frames can disperse the force of the jack on the reaction frames, which is beneficial to reducing the risk of deformation of the reaction frames affecting the static load test of the track plate; such arrangement of the first reaction frame and the second reaction frame can fully cover the loading positions of the transverse test and the longitudinal test of the track plate static load test, which is beneficial to the flexible and efficient static load test.

[0011] As a preferred solution of the utility model, the reaction frame is a gate-shaped arch frame formed by welding I-beams. I-beams are common construction materials and are easy to obtain; the reaction frame is formed by welding I-beams, which is easy to process and manufacture and can ensure sufficient strength, and can reduce the risk of deformation and damage of the reaction frame affecting the static load test of the track plate; the reaction frame is a gate-shaped arch frame, which is convenient for placing the track plate and the jack under the reaction frame, and is also conducive to the jack applying force to the reaction frame.

[0012] As a preferred solution of the utility model, the reaction frame is provided with a plurality of longitudinal beams, each of which is arranged longitudinally, and the longitudinal beams include a first longitudinal beam and a second longitudinal beam, both of which are located on the inner side of the gate-shaped arch frame, and the left and right ends of the first longitudinal beam are respectively welded to the two first reaction frames, and the left and right ends of the second longitudinal beam are respectively welded to the first reaction frame and the second reaction frame adjacent to the first reaction frame. The longitudinal beam provides a force application position for the jack, and the longitudinal beam can transfer the force applied by the jack to the reaction frame; when the track plate is subjected to a longitudinal static load test, the bottom ends of the plurality of jacks are placed at the loading position on the track plate, and the top ends are against the first longitudinal beam, and the first longitudinal beam can transfer the force applied by the jack in the longitudinal static load test to the reaction frame; when the track plate is subjected to a transverse static load test, the bottom ends of the plurality of jacks are placed at the loading position on the track plate, and the top ends are against the second longitudinal beam, and the second longitudinal beam can transfer the force applied by the jack in the transverse static load test to the reaction frame.

[0013] As a preferred solution of the utility model, it also includes a structural reinforcement, which is located on the side of the reaction frame, and the two ends of the structural reinforcement are respectively welded to the two first reaction frames, and the structural reinforcement is welded to each of the second reaction frames between the two first reaction frames. That is, the structural reinforcement is welded to each of the reaction frames, and the structural reinforcement connects all the reaction frames, which can increase the structural strength of the track plate static load test frame, which is conducive to reducing the risk of tilting and tipping of the reaction frame.

[0014] As a preferred solution of the utility model, a first connecting steel plate is welded to the bottom of the reaction frame, a second connecting plate is welded to the top of the base, the first connecting plate and the second connecting plate are both provided with connecting through holes, and connecting bolts pass through the connecting through holes on the first connecting plate and the second connecting plate in sequence to fix the reaction frame to the base. The reaction frame and the base are screwed and fixed by the above-mentioned connecting structure, which can ensure the firm connection between the reaction frame and the base and reduce the risk of the reaction frame detaching from the base during use, and at the same time facilitate installation and disassembly, and facilitate replacement of the reaction frame.

[0015] As a preferred solution of the utility model, a hoisting ring is fixedly connected to the top of the reaction frame. The hoisting ring provides a hoisting position for the track plate static load test frame. When the track plate static load test frame needs to be moved, the hoisting rope can be passed through the hoisting ring and the track plate static load test frame can be hoisted and moved to the target position using a hoisting mechanism.

[0016] As a preferred solution of the utility model, the support frame includes a separate transverse support frame and a longitudinal support frame, which can provide support for the track plate when the track plate is subjected to a transverse static load test and a longitudinal static load test respectively, and the support frame includes a load-bearing wooden board and a buffer pad, and the buffer pad is arranged on the top of the load-bearing wooden board. When the track plate is subjected to a transverse static load test, only the transverse support frame is arranged on the base, and the transverse support frame is used to provide support for the track plate. When the track plate is subjected to a longitudinal static load test, only the longitudinal support frame is arranged on the base, and the longitudinal support frame provides support for the track plate; when switching between transverse and longitudinal tests, the track plate is slightly lifted, the original support frame is removed and placed in a suitable support frame, and the switching is convenient and quick; the support frame includes a load-bearing wooden board and a buffer pad, and the buffer pad is arranged on the top of the load-bearing wooden board. When the track plate is placed on the support frame, the track plate contacts the buffer pad, and the buffer pad can provide buffering and anti-slip, which is beneficial to protect the support frame and reduce the risk of the track plate slipping off the support frame.

[0017] The utility model also discloses a track plate static load test device, including a track plate static load test frame described in any one of the utility models, and also including a jack and a sensor, the support frame is placed on the base, the track plate is placed on the top of the support frame, the jack is placed on the top of the track plate, and the sensor is connected to the top of the jack.

[0018] The utility model provides a track plate static load test device, comprising a track plate static load test frame as described in any one of the utility models, the static load test device can be flexibly moved and changed according to the needs of the test location, and also includes a jack and a sensor, the jack is placed on the top of the track plate, the top of the jack is connected with the sensor, the sensor can display and coordinate the control of the load value of each loading point, which is conducive to solving the problem of uneven and asynchronous force application of the jack at each loading point during the loading process. The operator adjusts the loading rate according to the load value displayed by the sensor to achieve stable, continuous, uniform and synchronous loading.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model provides a track plate static load test frame, which adopts a steel structure base, avoiding the need to build a concrete test platform before conducting a track plate static load test, which is beneficial to improving work efficiency and can flexibly move and change the test location according to needs, which is beneficial to improving the efficiency of the track plate static load test.

[0021] 2. Preferably, in a track plate static load test frame of the utility model, a lifting ring is provided on the top of the reaction frame, and the lifting ring provides a lifting position for the track plate static load test frame. When the track plate static load test frame needs to be moved, the lifting rope can be passed through the lifting ring and the track plate static load test frame can be lifted and moved to the target position using a lifting mechanism.

[0022] 3. A track plate static load test device according to the utility model comprises a track plate static load test frame as described in any one of the utility models, the static load test device can be flexibly moved and changed according to the needs of the test location, and also comprises a jack and a sensor, the sensor can display and coordinate the control of the load value of each loading point, which is conducive to solving the problem of uneven and asynchronous force application of the jack at each loading point during the loading process. The operator adjusts the loading rate according to the load value displayed by the sensor to achieve stable, continuous, uniform and synchronous loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a front view of a track plate static load test stand of the utility model;

[0024] Figure 2 It is a side view of a track plate static load test frame of the utility model;

[0025] Figure 3 It is a top view of a track plate static load test frame of the utility model;

[0026] Figure 4 It is a top view of the base of a track plate static load test frame of the utility model;

[0027] Figure 5 It is a schematic diagram of using a track plate static load test frame of the utility model to carry out a track plate lateral static load test;

[0028] Figure 6 A schematic diagram (I) of a track slab longitudinal static load test using a track slab static load test stand of the utility model;

[0029] Figure 7 The schematic diagram (II) is a schematic diagram of a track slab longitudinal static load test using a track slab static load test stand of the utility model.

[0030] Numbers in the figure: 1-base, 11-transverse I-beam, 12-longitudinal I-beam, 13-second connecting plate, 2-support frame, 21-transverse support frame, 22-longitudinal support frame, 3-reaction frame, 31-first reaction frame, 32-second reaction frame, 33-first connecting plate, 4-longitudinal beam, 41-first longitudinal beam, 42-second longitudinal beam, 5-lifting ring, 6-structural reinforcement, 7-jack, 8-sensor, 9-track plate, 10-loading point. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in combination with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0032] Example 1

[0033] like Figure 1-Figure 7 As shown, a track plate static load test frame includes a base 1, a support frame 2 and a reaction frame 3. The base 1 can provide a fixed position for the reaction frame 3. The base 1 includes a plurality of transverse I-beams 11 and longitudinal I-beams 12. The transverse I-beams 11 and the longitudinal I-beams 12 are cross-arranged, fixedly connected and form a hollow structure, which can form a steel structure base 1 with a stable structure and not easy to deform. The steel structure base 1 is used to replace the base of the concrete structure. The connection measures between the steel structures are simple, convenient and quick compared with pouring concrete, which is conducive to ensuring To ensure work efficiency, the base 1 is a hollow structure, the base 1 is light and can be moved flexibly; the support frame 2 is placed on the base 1, and the support frame 2 can provide support for the track plate 9 when the track plate 9 is subjected to a static load test. A plurality of reaction frames 3 are fixedly connected above the base 1, and the reaction frames 3 can provide a reaction force for the jack 7 (i.e., a loading component). Each reaction frame 3 is arranged horizontally, and all the reaction frames 3 are arranged at intervals in the longitudinal direction, to ensure that a plurality of loading points 10 can be set according to actual needs to perform a static load test on the track plate 9.

[0034] Those skilled in the art can understand that the shape of the track plate 9 is generally a rectangular plate, each of the reaction frames 3 is arranged transversely, and all of the reaction frames 3 are arranged at intervals along the longitudinal direction, the transverse direction is the width direction of the track plate 9, and the longitudinal direction is the length direction of the track plate 9.

[0035] The utility model provides a track plate static load test frame, which adopts the base 1 of the steel structure, avoiding the need to build a concrete test platform before conducting the track plate static load test, which is beneficial to improving work efficiency. There is no need to conduct static load tests at a fixed test location like a static load test frame with a concrete base, and the test location can be flexibly moved and changed according to needs, which is beneficial to improving the efficiency of the track plate static load test.

[0036] Example 2

[0037] like Figure 1-Figure 7As shown, this embodiment is further optimized and designed on the basis of Example 1. Specifically, in this embodiment, the reaction frame 3 is a gate-shaped arch frame, and the reaction frame 3 includes three I-beams, and the three I-beams are welded to form the gate-shaped arch frame. The reaction frame 3 is a gate-shaped arch frame, which is convenient for placing the track plate 9 and the jack 7 under the reaction frame 3, and is also conducive to the jack 7 applying a force to the reaction frame 3; I-beams are common construction materials, and the reaction frame 3 is formed by welding I-beams, which is convenient for processing and manufacturing and can ensure sufficient strength, and can reduce the risk of deformation and damage of the reaction frame 3 affecting the static load test of the track plate. In this embodiment, the reaction frame 3 is made of 20#A I-beams.

[0038] Furthermore, a lifting ring 5 is fixedly connected to the top of the reaction frame 3, and the lifting ring 5 provides a lifting position for the track plate static load test frame. When the track plate static load test frame needs to be moved, the lifting rope can be passed through the lifting ring 5 and the track plate static load test frame can be lifted and moved to the target position using a lifting mechanism.

[0039] Furthermore, the base 1 includes four mutually parallel longitudinal I-beams 12 and seven mutually parallel transverse I-beams 11, the longitudinal I-beams 12 and the transverse I-beams 11 are perpendicular to each other, two of the transverse I-beams 11 are welded with two longitudinal I-beams 12 to form a rectangular frame, the other five transverse I-beams 11 are arranged at intervals in the rectangular frame and welded to the rectangular frame, the other two longitudinal I-beams 12 are arranged on both sides of the longitudinal center line of the rectangular frame and welded to the rectangular frame, and the two longitudinal I-beams 12 are fitted together. The rectangular-shaped base 1 has a stable structure, meets the requirements of the static load test of the track plate, and is convenient for processing and manufacturing. The transverse I-beam 11 and the longitudinal I-beam 12 are connected by welding, which can ensure the connection strength and is conducive to structural stability; five transverse I-beams 11 are arranged at intervals in the rectangular frame, which can better increase the structural strength inside the rectangular frame and reduce the risk of deformation of the rectangular frame; two longitudinal I-beams 12 are arranged on both sides of the longitudinal center line of the rectangular frame and the two longitudinal I-beams 12 are in contact with each other. The longitudinal I-beams 12 can not only reduce the risk of deformation of the rectangular frame, but also provide support and placement position for the support frame 2 when the track plate 7 is subjected to a longitudinal static load test.

[0040] Specifically, in this embodiment, the transverse I-beam 11 and the longitudinal I-beam 12 are both 20#A I-beams, the length of the transverse I-beam 11 is 2750mm, and the length of the longitudinal I-beam is 5050mm, that is, the size of the rectangular frame is 2750×5050mm, and the spacing between the seven transverse I-beams 11 are: 1025mm, 900mm, 600mm, 600mm, 900mm, 1025mm respectively.

[0041] Those skilled in the art can understand that the base 1 of this embodiment is a specific embodiment, and does not limit the shape of the base 1 in the track plate static load test frame in the independent claim of the utility model and the number of the longitudinal I-beams 12 and the transverse I-beams 11 included therein, as long as the base 1 formed by the cross arrangement of the transverse I-beams 11 and the longitudinal I-beams 12 can provide a fixed position for the reaction frame 3 and has a stable structure. Preferably, the base 1 includes at least four transverse I-beams 11 and at least three longitudinal I-beams 12, wherein two transverse I-beams 11 and two longitudinal I-beams 12 are welded to form a rectangular frame, and the remaining transverse I-beams 11 and longitudinal I-beams 12 are arranged in the rectangular frame and welded to the rectangular frame respectively.

[0042] Further, at least four reaction frames 3 are included, two of which are first reaction frames 31, and the two first reaction frames 31 are respectively arranged above the two transverse I-beams 11 that form the rectangular frame, and the remaining reaction frames 3 are second reaction frames 32, and the second reaction frames 32 are arranged between the two first reaction frames 31 at intervals. At least four reaction frames 3 can disperse the force of the jack 7 on the reaction frames 3, which is conducive to reducing the risk of deformation of the reaction frames 3 affecting the static load test of the track plate; such arrangement of the first reaction frames 31 and the second reaction frames 32 can fully cover the loading positions of the transverse test and the longitudinal test of the static load test of the track plate, which is conducive to the flexible and efficient conduct of the static load test. Specifically, in this embodiment, seven reaction frames 3 are included, two of which are the first reaction frames 31, and the remaining five are the second reaction frames 32, and the seven reaction frames 3 are respectively arranged above the seven transverse I-beams 11.

[0043] Furthermore, a longitudinal beam 4 is fixedly connected to the inner side of the reaction frame 3 , that is, the longitudinal beam 4 is arranged between the reaction frame 3 and the base 7 , and the longitudinal beam 4 can transmit the force applied by the jack 7 to the reaction frame 3 .

[0044] Those skilled in the art can understand that before conducting a static load test on the track plate, it is necessary to select a loading point 10 on the track plate 9 according to actual conditions to determine the force application point of the jack 7. There may be a situation where the loading point 10 does not correspond to the reaction frame 3. The longitudinal beam 4 is provided, and the longitudinal beam 4 can transmit the force of the jack 7 on these loading points 10 that do not correspond to the reaction frame 3 to the reaction frame 3, thereby ensuring the smooth progress of the static load test on the track plate.

[0045] Furthermore, the longitudinal beam 4 includes a first longitudinal beam 41 and a second longitudinal beam 42, the left and right ends of the first longitudinal beam 41 are respectively welded to the two first reaction frames 31, and the five second reaction frames 32 between the first longitudinal beam 41 and the two first reaction frames 31 are all welded, and the left and right ends of the second longitudinal beam 42 are respectively welded to the first reaction frame 31 and the second reaction frame 32 adjacent to the first reaction frame 31. When the track plate 9 is subjected to a longitudinal static load test, the bottom ends of several jacks 7 are placed at the loading position on the track plate 9, and the top ends are against the first longitudinal beam 41, and the first longitudinal beam 41 can transfer the force applied by the jacks 7 in the longitudinal static load test to the reaction frame 3; when the track plate 9 is subjected to a transverse static load test, the bottom ends of several jacks 7 are placed at the loading position on the track plate 9, and the top ends are against the second longitudinal beam 42, and the second longitudinal beam 42 can transfer the force applied by the jacks 7 in the transverse static load test to the reaction frame 3. Specifically, as Figure 3 As shown, in this embodiment, two first longitudinal beams 41 and four second longitudinal beams 42 are included.

[0046] Those skilled in the art will understand that Figure 5 The figure shows a schematic diagram of a lateral static load test performed using the track plate static load test frame of the present embodiment. The shaded area in the figure is a lateral support frame 21 and a loading point 10. A total of four loading points 10 are selected. The size of the loading point 10 is 200mm×150mm. The maximum load of each loading point 10 is 5kN. The four loading points 10 are respectively located below the four second longitudinal beams 42.

[0047] Those skilled in the art will understand that Figure 6 The figure shows a schematic diagram of a longitudinal static load test using the track plate static load test frame of the present embodiment. The shaded area in the figure is the longitudinal support frame 22 and the loading point 10. A total of fourteen loading points 10 are selected. The size of the loading point 10 is 200mm×150mm. The maximum load of each loading point 10 is 1kN. The fourteen loading points 10 are respectively located under the two first longitudinal beams 41. There are seven loading points 10 under each of the first longitudinal beams 41.

[0048] Furthermore, two structural reinforcement members 6 are respectively located on both sides of the reaction frame 3, and the structural reinforcement member 6 is welded to each of the reaction frames 3. That is, the two ends of the structural reinforcement member 6 are respectively welded to the two first reaction frames 31, and the structural reinforcement member 6 is welded to each of the second reaction frames 32 between the two first reaction frames 31. The structural reinforcement member 6 connects all the reaction frames 3, which can increase the structural strength of the track plate static load test frame, which is conducive to reducing the risk of the reaction frames 3 tilting or tipping.

[0049] Furthermore, a first connecting steel plate 33 is welded to the bottom of the reaction frame 3, and a second connecting plate 13 is welded to the top of the base 1. The first connecting plate 33 and the second connecting plate 13 are both 200×200 mm square plates with a thickness of 10 mm. The first connecting plate 33 and the second connecting plate 13 are both provided with connecting through holes with a diameter of 25 mm. The connecting bolts pass through the connecting through holes on the first connecting plate 33 and the second connecting plate 13 in sequence to fix the reaction frame 3 to the base 1. The reaction frame 3 and the base 1 are screwed and fixed by the above-mentioned connecting structure, which can ensure the firm connection between the reaction frame 3 and the base 1 and reduce the risk of the reaction frame 3 being separated from the base 1 during use. At the same time, it is convenient for installation and disassembly, and it is convenient for replacing the reaction frame 3.

[0050] Furthermore, the support frame 2 includes a separate transverse support frame 21 and a longitudinal support frame 22, which can provide support for the track plate 9 when the track plate is subjected to a transverse static load test and a longitudinal static load test respectively. The support frame 2 includes a load-bearing wooden board and a buffer pad, and the buffer pad is arranged on the top of the load-bearing wooden board.

[0051] like Figure 5 As shown, when the track plate 9 is subjected to a transverse static load test, only two transverse support frames 21 are arranged on the base 1, and the transverse support frames 21 are used to provide support for the track plate 9. The two transverse support frames 21 are respectively located between the transverse center line of the track plate 9 and the transverse I-beams 11 on both sides, so that the maximum bending of the track plate 9 is reflected in the transverse middle position of the track plate 9, and whether there are new cracks in the transverse middle position is observed to reflect the transverse static load test result of the track plate 9; as shown in FIG. Figure 6 As shown, when the track plate 9 is subjected to a longitudinal static load test, only one longitudinal support frame 22 is arranged on the base 1, and the longitudinal support frame 22 provides support for the track plate 9. The longitudinal support frame 22 is located at the longitudinal center line of the track 9, and the longitudinal static load test result of the track plate 9 is reflected by observing whether there are new cracks in the areas at both ends of the longitudinal center line.

[0052] Those skilled in the art can understand that when the track plate static load test frame of this embodiment is switched between the transverse and longitudinal tests, the track plate 9 is slightly lifted and the original support frame 2 is removed and placed in a suitable support frame 2, and the switching is convenient and quick; the support frame 2 includes a load-bearing wooden board and a buffer pad, and the buffer pad is arranged on the top of the load-bearing wooden board. When the track plate 9 is placed on the support frame 2, the track plate 9 is in contact with the buffer pad, and the buffer pad can provide buffering and anti-slip, which is beneficial to protect the support frame 2 and reduce the risk of the track plate 9 slipping off the support frame 2.

[0053] Example 3

[0054] like Figure 1-Figure 7 As shown, a track plate static load test device includes a track plate static load test frame as described in Example 2, and also includes a jack 7 and a sensor 8, such as Figure 7 As shown, the support frame 2 is placed on the base 1 , a track plate 9 is placed on the top of the support frame 2 , the jack 7 is placed on the top of the track plate 9 , the sensor 8 is connected to the top of the jack 7 , and the top of the sensor 8 is against the longitudinal beam 4 .

[0055] Taking the track slab static load test device of this embodiment as an example, the steps are as follows:

[0056] A. Construction preparation: 1) Hoist the track plate static load test frame to the test site and adjust the level, install the transverse support frame 21, and hoist the track plate 9 into place. 2) The on-site personnel have conducted construction technical instructions, the operators are proficient in the operation of the device, and the personnel cooperate well. 3) Check that the loading device (jack 7) and the digital display instrument are working properly. 4) Mark the existing cracks on the surface and side of the track plate 9.

[0057] B. Install four jacks 7 to the four loading points 10 respectively, and install the sensor 8. Before loading, check the support status of the track plate 9. After confirmation, start loading. When loading, each loading point 10 should reach the same load value at the same speed and synchronously. The loading speed should be uniform, and the single-point loading rate should not exceed 0.5kN / s. After loading to the test load value, stabilize for 3 minutes, observe the tensile zone with a magnifying glass, observe the cracks, and make records.

[0058] The steps of the longitudinal static load test of the track plate are similar to those of the transverse static load test. It is only necessary to slightly lift the track plate 9 that has undergone the transverse static load test, remove the original transverse support frame 21 and put it into the longitudinal support frame 22, and reinstall the jack 7 and the sensor 8 according to the requirements of the longitudinal static load test.

[0059] A track plate static load test device of the utility model comprises a track plate static load test frame as described in any one of the utility models, the static load test device can be flexibly moved and changed according to the needs of the test location, and also comprises a jack 7 and a sensor 8, the sensor 8 can display and coordinate the control of the load value of each loading point 10, which is conducive to solving the problem of uneven and asynchronous force application of the jack 7 at each loading point 10 during the loading process. The operator adjusts the loading rate according to the load value displayed by the sensor 8 to achieve stable, continuous, uniform and synchronous loading.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A track plate static load test frame, comprising a base (1), a support frame (2) and a reaction frame (3), characterized in that: The base (1) comprises a transverse I-beam (11) and a longitudinal I-beam (12), wherein the transverse I-beam (11) and the longitudinal I-beam (12) are arranged crosswise to form a hollow structure, the support frame (2) is placed on the base (1), and a plurality of reaction frames (3) are fixedly connected above the base (1), each reaction frame (3) is arranged transversely, and all the reaction frames (3) are arranged at intervals in the longitudinal direction.

2. A track plate static load test stand according to claim 1, characterized in that: The base (1) comprises at least four mutually parallel transverse I-beams (11) and at least three mutually parallel longitudinal I-beams (12), wherein two of the transverse I-beams (11) and two of the longitudinal I-beams (12) are welded to form a rectangular frame, and the remaining transverse I-beams (11) and longitudinal I-beams (12) are arranged in the rectangular frame and are respectively welded to the rectangular frame.

3. A track plate static load test stand according to claim 2, characterized in that: The base (1) comprises seven transverse I-beams (11) and four longitudinal I-beams (12), wherein two transverse I-beams (11) and two longitudinal I-beams (12) are welded to form a rectangular frame, another five transverse I-beams (11) are arranged at intervals in the rectangular frame, and another two longitudinal I-beams (12) are arranged on both sides of the longitudinal center line of the rectangular frame and the two longitudinal I-beams (12) are in close contact with each other.

4. A track plate static load test stand according to claim 2, characterized in that: The invention comprises at least four reaction frames (3), wherein two of the reaction frames (3) are first reaction frames (31), the two first reaction frames (31) are respectively arranged above two transverse I-beams (11) forming the rectangular frame, and the remaining reaction frames (3) are second reaction frames (32), the second reaction frames (32) are arranged between the two first reaction frames (31) at intervals.

5. A track plate static load test stand according to claim 4, characterized in that: The reaction frame (3) is a gate-shaped arch frame formed by welding I-beams.

6. A track plate static load test stand according to claim 5, characterized in that: A plurality of longitudinal beams (4) are provided on the reaction frame (3), each of the longitudinal beams (4) being arranged longitudinally, and the longitudinal beams (4) include a first longitudinal beam (41) and a second longitudinal beam (42), the first longitudinal beam (41) and the second longitudinal beam (42) being both located on the inner side of the gate-shaped arch frame, the left and right ends of the first longitudinal beam (41) being respectively welded to the two first reaction frames (31), and the left and right ends of the second longitudinal beam (42) being respectively welded to the first reaction frame (31) and the second reaction frame (32) adjacent to the first reaction frame (31).

7. A track plate static load test stand according to claim 5, characterized in that: It also comprises a structural reinforcement member (6), wherein the structural reinforcement member (6) is located on the side of the reaction frame (3), and the two ends of the structural reinforcement member (6) are respectively welded to the two first reaction frames (31), and each of the second reaction frames (32) between the structural reinforcement member (6) and the two first reaction frames (31) is welded.

8. A track plate static load test stand according to any one of claims 4 to 7, characterized in that: A first connecting plate (33) is welded to the bottom of the reaction frame (3), and a second connecting plate (13) is welded to the top of the base (1). The first connecting plate (33) and the second connecting plate (13) are both provided with connecting through holes. Connecting bolts pass through the connecting through holes on the first connecting plate (33) and the second connecting plate (13) in sequence to fix the reaction frame (3) to the base (1); a lifting ring (5) is fixedly connected to the top of the reaction frame (3).

9. A track plate static load test stand according to claim 1, characterized in that: The support frame (2) comprises a separate transverse support frame (21) and a longitudinal support frame (22), which can provide support for the track plate when performing a transverse static load test and a longitudinal static load test on the track plate, respectively. The support frame (2) comprises a load-bearing wooden board and a buffer pad, and the buffer pad is arranged on the top of the load-bearing wooden board.

10. A track slab static load test device, characterized in that: It comprises a track plate static load test frame as described in any one of claims 1 to 9, and also comprises a jack (7) and a sensor (8), wherein the support frame (2) is placed on the base (1), a track plate (9) is placed on the top of the support frame (2), the jack (7) is placed on the top of the track plate (9), and the sensor (8) is connected to the top of the jack (7).

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