Railway simply-supported box girder concrete along-beam test block in-situ condition duplicating test system

Abstract

The invention provides a railway simply-supported box girder concrete beam-following test block in-situ condition duplicating test system which comprises a concrete beam-following test block, a test assembly, a simulation device and a test device, and the concrete beam-following test block and concrete in a railway simply-supported box girder are made of the same material; the test assembly is arranged on the railway simply-supported box girder and is used for testing environmental parameters of the railway simply-supported box girder; the simulation device simulates the environment of the concrete beam-following test block to enable the environment to be consistent with environmental parameters; the testing device is used for testing the performance of the concrete beam-following test block and is used for obtaining the performance parameters of the concrete beam-following test block so as to represent the performance of the concrete simply-supported box beam. According to the method, the concrete beam-following test block is placed in the specific environment, and the environmental parameters in the specific environment are the same as the environmental parameters of the railway part-time box girder, so that the performance parameters of the railway simply-supported box girder can be obtained by analyzing the performance parameters of the concrete beam-following test block.

Description

Technical Field

[0001] The present invention relates to the technical field of railway bridge detection, and in particular to an in-situ condition replication test system for railway simply supported box girder concrete test blocks. Background Art

[0002] Most of my country's high-speed railways are built using the "bridge instead of road" method. The number of railway bridges has also increased rapidly with the extension of railways. The total number has reached 92,000, with a cumulative length of 31,000 kilometers.

[0003] Railway concrete simply supported box girders are a typical structural type of railway bridges. Commonly used span prestressed concrete simply supported beam bridges account for 94% of the total bridge mileage. Practice has shown that with the gradual increase in construction scale and the gradual increase in bridge operation time, concrete simply supported box girders have good applicability in railway bridges and can give full play to the durability of concrete materials and the stability of the box girder structure.

[0004] Railway concrete simply supported box girders are prefabricated in the beam yard and then erected by moving, lifting, transporting and erecting the beams. This method has standardized casting, maintenance and erection procedures and processes, which can significantly improve the construction speed of railway bridges and effectively control the structural quality.

[0005] Due to the large differences in the environment in which the concrete simply supported box girders along the railway are located, technicians are unable to monitor the material properties of the railway concrete simply supported box girders in the later stages. Summary of the Invention

[0006] The present application provides an in-situ condition replication test system for concrete test blocks of railway simply supported box girders, which is used to solve the technical problem in related technologies that the performance of railway concrete simply supported box girders cannot be monitored.

[0007] The present application provides an in-situ condition replication test system for railway simply supported box girder concrete test blocks, comprising:

[0008] Concrete beam test blocks, the concrete beam test blocks are made of the same material as the concrete in the railway simply supported box girder;

[0009] A test assembly, the test assembly being provided on the railway simply supported box girder and being used to test environmental parameters of the railway simply supported box girder;

[0010] A simulation device, wherein the simulation device simulates the environment of the concrete beam test block to make it consistent with the environmental parameters;

[0011] A test device is used to perform performance testing on the concrete beam test block to obtain performance parameters of the concrete beam test block to characterize the performance of the concrete simply supported box girder.

[0012] In the present invention, the concrete test block provided with the beam is made of the same material as the concrete in the railway simply supported box girder, and the concrete test block with the beam is placed in a specific environment, the environmental parameters in the specific environment are the same as the environmental parameters of the railway part-time box girder, so that the performance parameters of the railway simply supported box girder can be obtained by analyzing the performance parameters of the concrete test block with the beam.

[0013] Specifically, the specific parameters of the environment in which the railway simply supported box girder is located are obtained through the test component, and these specific parameters are used to simulate the specific environment with roughly the same environmental parameters in the simulation device, and the concrete beam test blocks are tested through the test device to characterize the performance of the concrete simply supported box girder.

[0014] In some embodiments of the railway simply supported box girder concrete test block in-situ condition replication test system of the present invention, a data transmission and analysis system is also included, and the data transmission and analysis system further includes:

[0015] a data transmission device, the data transmission device being connected to the test component to obtain the environmental parameters and to send the environmental parameters;

[0016] A data receiving device is communicatively connected with the data transmitting device to obtain the environmental parameters.

[0017] By providing a data transmission device and a data receiving device, the specific environment in which the railway simply supported box girder is located can be simulated remotely, so that the specific environment can be simulated in a suitable test environment according to actual needs.

[0018] In some embodiments of the railway simply supported box girder concrete in-situ condition replication test system of the present invention, the data transmission and analysis system further includes a data processing module, which performs statistics and analysis on the environmental parameters.

[0019] Since the external environment of the railway simply supported box girder changes at any time, sometimes the environmental parameters detected by the test component are quite different from the environmental parameters of the test. In order to better simulate the specific environment, extreme parameters should be filtered. Therefore, in the present invention, the environmental parameters after the test are statistically analyzed through the data processing module, so that the processed data can simulate the test environment more realistically through the simulation device, and obtain more realistic test data.

[0020] In some embodiments of the in-situ condition replication test system for railway simply supported box girder concrete test blocks of the present invention, the simulation device also includes a curing box, the concrete test blocks are arranged in the curing box, and the curing box is also connected to the simulation device for forming a simulation environment with the environmental parameters in the curing box.

[0021] In some embodiments of the in-situ condition replication test system for railway simply supported box girder concrete accompanying beam specimens of the present invention, the simulation device includes a fan, a dehumidifier, a humidifier, a heater and a refrigerator, and the fan, the dehumidifier, the humidifier, the heater and the refrigerator are all connected to the curing box for simulating the environmental parameters in the curing box.

[0022] In some embodiments of the in-situ condition replication test system for railway simply supported box girder concrete test blocks of the present invention, a plurality of concrete test blocks are provided in the curing box, and the three-dimensional shape of the concrete test blocks is set to be a cube, a rectangular parallelepiped or a cylinder.

[0023] In some embodiments of the in-situ condition replication test system for railway simply supported box girder concrete test blocks of the present invention, the test component includes a temperature sensor and a humidity sensor, and the temperature sensor and the humidity sensor are buried inside the railway simply supported box girder, and / or the temperature sensor and the humidity sensor are arranged on the surface area of ​​the railway simply supported box girder.

[0024] In some embodiments of the in-situ condition replication test system for railway simply supported box girder concrete test blocks of the present invention, the test assembly includes multiple temperature sensors and multiple humidity sensors, and the multiple temperature sensors and the multiple humidity sensors are arranged at intervals on the railway simply supported box girder.

[0025] In some embodiments of the railway simply supported box girder concrete in-situ condition replication test system of the present invention, the multiple temperature sensors and the multiple humidity sensors are arranged in the end face area or the mid-span area of ​​the railway simply supported box girder.

[0026] In some embodiments of the railway simply supported box girder concrete in-situ condition replication test system of the present invention, the temperature sensor and the humidity sensor collect data every 0-1 hour. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0028] Figure 1 The cross-section position of the railway simply supported box girder of the railway simply supported box girder concrete test block in-situ condition replication test system of the present invention;

[0029] Figure 2 Schematic diagram of the test system for replicating in-situ conditions of concrete test blocks of railway simply supported box girders according to the present invention;

[0030] Figure 3It is a simulation schematic diagram of the railway simply supported box girder concrete in-situ condition replication test system of the present invention;

[0031] Figure 4 It is a remote monitoring device for the railway simply supported box girder concrete beam test block in-situ condition replication test system of the present invention;

[0032] Figure 5 The temperature test point of the mid-span section of the railway simply supported box girder during the curing period with formwork of the present invention;

[0033] Figure 6 The temperature test point of the beam end section of the railway simply supported box girder during the on-form curing period of the present invention;

[0034] Figure 7 It is the humidity test point of the mid-span section of the railway simply supported box girder during the curing period with formwork of the present invention;

[0035] Figure 8 It is a humidity test point of the beam end section during the with-form curing period of the railway simply supported box beam of the present invention;

[0036] Figure 9 The temperature and humidity test points of the mid-span section of the railway simply supported box girder during demoulding and curing of the present invention;

[0037] Figure 10 The temperature and humidity test points of the beam end section during the demoulding and curing period of the railway simply supported box beam of the present invention;

[0038] Figure 11 This is a test flow chart of the railway simply supported box girder concrete in-situ condition replication test system of the present invention.

[0039] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

[0040] Description of Reference Numerals

[0041] 10. Test component; 11. Temperature sensor; 12. Humidity sensor;

[0042] 20. Simulator; 21. Curing box; 22. Fan; 23. Dehumidifier; 24. Humidifier; 25. Heater; 26. Refrigerator;

[0043] 30. Data transmission and analysis system; 31. Data transmission device; 32. Data receiving device; 33. Data processing module; 34. Power supply; 35. Monitoring device;

[0044] 40. Railway simply supported box girder; 41. Beam end section; 42. Mid-span section. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0047] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0048] The terms "first," "second," "third," "fourth," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the application described herein can, for example, be implemented in an order other than that illustrated or described herein.

[0049] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0050] The present invention provides an in-situ condition replication test device for a concrete accompanying beam test block of a railway simply supported box girder, which performs in-situ testing on the curing conditions of a railway simply supported box girder 40. By collecting, transmitting and replicating the curing data, the accompanying beam test block is cured under the same conditions, thereby achieving the goal of ensuring that the curing conditions of the accompanying beam test block are consistent with those of the railway simply supported box girder concrete. The performance of the accompanying beam test block can truly reflect the performance of the original concrete simply supported box girder, laying a technical foundation for the development of railway simply supported concrete box girder construction technology.

[0051] The present application provides an in-situ condition replication test system for a railway simply supported box girder concrete test block, comprising: a concrete test block, a test assembly 10, a simulation device 20 and a test device. The concrete test block is made of the same material as the concrete in the railway simply supported box girder 40. The test assembly 10 is arranged on the railway simply supported box girder 40 and is used to test the environmental parameters of the railway simply supported box girder 40. The simulation device 20 simulates the environment of the concrete test block to make it consistent with the environmental parameters. The test device performs a performance test on the concrete test block to obtain the performance parameters of the concrete test block to characterize the performance of the concrete simply supported box girder.

[0052] By adopting the in-situ condition replication test system for railway simply supported box girder concrete test blocks provided by the present invention, after the railway concrete simply supported box girder is cast, whether it is cured by closed natural curing or high-temperature steam curing according to the natural environment, the concrete test blocks can be cured under the same conditions. After curing for a specific time, material performance tests are carried out, and the results are used as the material properties of the simply supported box girder structure.

[0053] Moreover, the concrete test block attached to the beam is not restricted by the placement position; it can truly reflect the temperature and humidity conditions of the concrete simply supported box girder structure during the curing period after pouring, and ensure that the curing conditions of the concrete test block attached to the beam are consistent with those of the original concrete simply supported box girder, so that the test performance of the concrete test block attached to the beam truly expresses the material properties of the concrete box girder structure.

[0054] The railway simply supported box girder concrete in-situ condition replication test system of the present invention is elaborated in detail in the following aspects.

[0055] First, a railway concrete simply supported box girder curing parameter testing system. The present invention adopts a railway simply supported box girder curing condition testing system, in which the key test parameters are curing temperature and humidity. Curing temperature and humidity measuring points are arranged on the entire cross-section of the box girder to perform in-situ testing on the curing conditions of the railway simply supported box girder structure.

[0056] Specifically, it includes the collection of curing parameters. By installing temperature sensors 11 and humidity sensors 12 on the surface of railway concrete simply supported box girders, the curing parameters of the box girders after concrete pouring are continuously tested, and in-situ data testing and collection of railway concrete box girders are performed. The curing parameters focus on testing temperature and humidity data, and other data can be adjusted according to actual needs. Figure 1 The cross section of the railway simply supported box girder of the railway simply supported box girder concrete accompanying beam test block in-situ condition replication test system of the present invention is located, and the test cross section can be increased according to actual conditions.

[0057] The curing parameter test of simply supported box girder includes the parameter test during the curing period of box girder with formwork and the parameter test during the curing period after the box girder is demoulded.

[0058] During the box girder curing period, the concrete temperature is tested by using 41 embedded temperature measuring points in the box girder mid-span and beam end sections, and the data is transmitted to the environmental chamber for replication. Figure 5 The temperature test point of the mid-span section 42 of the railway simply supported box girder 40 during the curing period is shown in FIG. Figure 6 The temperature test point of the beam end section 41 of the railway simply supported box girder 40 of the present invention during the mold curing period is as follows: Figure 5 and Figure 6 As shown, there are 51 temperature measuring points in total, 101 to 130 are temperature measuring points, and 201 to 221 are temperature measuring points.

[0059] During the concrete box girder formwork curing period, the ambient humidity measuring points are set inside a mid-span section 42 and two beam end sections 41 of the box girder to test the ambient humidity, and the data is transmitted to the environmental chamber for replication.

[0060] Figure 7 The humidity test point of the mid-span section 42 of the railway simply supported box girder 40 of the present invention during the curing period is as follows:

[0061] Figure 8 The humidity test point of the beam end section 41 of the railway simply supported box girder 40 of the present invention during the mold curing period is as follows: Figure 7 and Figure 8 As shown, there are 9 humidity measuring points in total, 301, 302, 303, 401, 402, and 403 are all humidity measuring points.

[0062] During the curing period after the box girder is demoulded, temperature and humidity sensors are arranged at the two end sections 41 and the mid-span section 42 of the box girder. Figure 9 The temperature and humidity test points of the mid-span section 42 during the demoulding and curing period of the railway simply supported box girder 40 of the present invention are as follows: Figure 10 The temperature and humidity test points of the beam end section 41 during the demoulding and curing period of the railway simply supported box girder 40 of the present invention are as follows: Figure 9 and Figure 10 As shown, there are a total of 24 temperature and humidity measuring points, 501 to 508 are temperature and humidity measuring points, and 601 to 608 are temperature and humidity measuring points.

[0063] Second, transmission and analysis of maintenance parameters. Based on the collection of maintenance parameters, the data is transmitted to the data processing controller through wireless point-to-point transmission, and the data is summarized and processed. The data is rationalized by taking the average value after removing the maximum and minimum values ​​or other methods, so that the data after analysis can truly represent the actual maintenance characteristics of the simply supported box girder.

[0064] Among them, the data transmission and analysis system 30 also includes a data transmission device 31 and a data receiving device 32. The data transmission device 31 is connected to the test component 10 to obtain the environmental parameters and send the environmental parameters; the data receiving device 32 is communicated with the data transmission device 31 to obtain the environmental parameters.

[0065] By providing the data transmission device 31 and the data receiving device 32 , the specific environment in which the railway simply supported box girder 40 is located can be simulated remotely, so that the specific environment can be simulated in a suitable test environment according to actual needs.

[0066] The data transmission and analysis system further includes a data processing module 33 , which performs statistics and analysis on the environmental parameters.

[0067] Temperature sensors 11 and humidity sensors 12 are installed on the surface of railway concrete simply supported box girders to continuously test the curing parameters (temperature and humidity data) of the box girders after concrete pouring. In-situ data of railway concrete box girders is tested and collected. Other data can be adjusted according to actual needs, such as parameters such as solar radiation and oxygen content in plateau environments.

[0068] Figure 2 Schematic diagram of the test system for replicating in-situ conditions of concrete test blocks of railway simply supported box girders according to the present invention; Figure 3 It is a simulation schematic diagram of the railway simply supported box girder concrete in-situ condition replication test system of the present invention; Figure 4 The invention is a remote monitoring device for the railway simply supported box girder concrete beam test block in-situ condition replication test system, such as Figure 3 As shown, the system is provided with a power supply 34, such as Figure 4 As shown, the system is provided with a monitoring device 35 .

[0069] Based on the collection of maintenance parameters, the data is transmitted to the data processing controller through wireless point-to-point transmission, and the data is summarized and processed. The following table gives the box girder maintenance parameter analysis and transmission frequency.

[0070] Table 1 Box girder maintenance parameter analysis and transmission frequency

[0071]

[0072]

[0073] Third, the railway concrete simply supported box girder curing parameter replication system transmits and processes the simply supported box girder curing parameters into a high-precision environmental curing chamber 21. Using this high-precision environmental curing chamber 21, the simply supported box girder curing parameters are replicated and cured in situ under the same conditions as the original box girder. The concrete mix and raw materials used in the concrete test blocks within the curing chamber 21 are identical to those used for the original box girder. Concrete from the same batch is used for casting under the same conditions.

[0074] The environmental curing chamber 21 should include controllers for a fan 22, a dehumidifier 23, a humidifier 24, a heater 25, and a cooler 26 to enable continuous, real-time characterization of curing conditions. The environmental curing chamber 21 should have sufficient space to accommodate the material test blocks and the molds.

[0075] Fourth, the railway concrete simply supported box girder test block test system conducts strength and durability tests on the concrete beam test blocks that have been cured using the in-situ conditions of the present invention, so as to more realistically characterize the material properties of the full-scale box girder and determine whether the concrete material properties of the railway concrete simply supported box girder meet the relevant requirements.

[0076] Material specimens cured in the environmental chamber for a specific period of time are removed for mechanical properties or durability testing to more accurately characterize the material properties of railway concrete box girders. The following table provides examples of material properties specimens and testing projects, which can be adjusted based on actual working conditions.

[0077] Table 2 Box girder material performance test items and parameters

[0078]

[0079]

[0080] The material performance evaluation of railway concrete box girders involves conducting relevant tests on mechanical and durability material specimens cured under the same conditions based on importance and time series.

[0081] a) 10d cube compressive strength standard

[0082] The 10d cubic compressive strength of the concrete material test block should meet the requirements in the table below. If it is lower than the value in the table, it means that the box girder concrete cubic strength does not meet the requirements.

[0083] Table 3 Cube compressive strength (MPa)

[0084]

[0085] b) 10d elastic modulus standard

[0086] The 10d cubic compressive strength of the concrete material test block should meet the requirements in the table below. If it is lower than the value in the table, it means that the box girder concrete cubic strength does not meet the requirements.

[0087] Table 4 Elastic modulus (GPa)

[0088] Strength level C25 C30 C35 C40 C45 C50 C55 C60 elastic modulus 30 32 33 34 34.5 35.5 36 36.5

[0089] c) 28d freeze-thaw cycle resistance standard

[0090] Freeze-thaw resistance testing is conducted using the rapid freezing method. After the specified number of freeze-thaw cycles, the test block's frozen elastic modulus drops to no less than 60%, and the mass loss rate does not exceed 5%. The maximum number of freeze-thaw cycles required for verification is determined based on the natural environment in which the railway concrete box girder is located (see Table 5). Under normal conditions, testing is performed with F200 freeze-thaw cycles.

[0091] Table 5 Number of freeze-thaw cycles

[0092]

[0093]

[0094] d) 56d chloride ion penetration resistance standard

[0095] The electric flux test method is used to test the chloride ion penetration resistance of 56d concrete specimens. The electric flux results should meet the values ​​in Table 6.

[0096] Table 6 Concrete electrical flux

[0097]

[0098] e) Performance evaluation of railway concrete box girders

[0099] Figure 11 This is a test flow chart for the in-situ condition replication test system for a 40-piece concrete test block for a railway simply supported box girder. This example only provides key indicators and tests for the mechanical and durability properties of concrete materials. This approach can be expanded to include testing and evaluating other mechanical, durability, and long-term performance indicators, such as axial compressive strength, splitting strength, flexural strength, anchorage strength, shrinkage creep, resistance to sulfate chemical attack, and resistance to salt crystallization damage.

[0100] The curing conditions of the railway simply supported box girder 40 were tested in situ, and the test blocks accompanying the girder were cured under the same conditions by collecting, transmitting and replicating the curing parameter data, so as to achieve the goal of making the curing conditions of the test blocks accompanying the girder consistent with the concrete of the railway simply supported box girder 40, so that the performance of the test blocks accompanying the girder can truly represent the performance of the original concrete simply supported box girder.

[0101] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of the present application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0102] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A railway simply supported box girder concrete test block in-situ condition replication test system, characterized in that: include: Concrete beam test blocks, the concrete beam test blocks are made of the same material as the concrete in the railway simply supported box girder; A test assembly, the test assembly being provided on the railway simply supported box girder and being used to test environmental parameters of the railway simply supported box girder; A simulation device, wherein the simulation device simulates the environment of the concrete beam test block to make it consistent with the environmental parameters; A test device is used to perform performance testing on the concrete beam test block to obtain performance parameters of the concrete beam test block to characterize the performance of the concrete simply supported box girder.

2. The railway simply supported box girder concrete test block in-situ condition replication test system according to claim 1 is characterized in that: Also included is a data transmission and analysis system, the data transmission and analysis system further comprising: a data transmission device, the data transmission device being connected to the test component to obtain the environmental parameters and to send the environmental parameters; A data receiving device is communicatively connected with the data transmitting device to obtain the environmental parameters.

3. The railway simply supported box girder concrete test block in-situ condition replication test system according to claim 2 is characterized in that: The data transmission and analysis system further includes: A data processing module is used to perform statistics and analysis on the environmental parameters.

4. The railway simply supported box girder concrete test block in-situ condition replication test system according to claim 2 is characterized in that: The simulation device also includes a curing box, in which the concrete beam test block is arranged. The curing box is also connected to the simulation device and is used to form a simulation environment with the environmental parameters in the curing box.

5. The railway simply supported box girder concrete test block in-situ condition replication test system according to claim 4 is characterized in that: The simulation device includes a fan, a dehumidifier, a humidifier, a heater and a refrigerator. The fan, the dehumidifier, the humidifier, the heater and the refrigerator are all connected to the curing box and are used to simulate the environmental parameters in the curing box.

6. The railway simply supported box girder concrete test block in-situ condition replication test system according to claim 5, characterized in that: A plurality of concrete beam test blocks are arranged in the curing box, and the three-dimensional shapes of the concrete beam test blocks are set to be cubes, rectangular parallelepipeds or cylinders.

7. The railway simply supported box girder concrete test block in-situ condition replication test system according to any one of claims 1 to 6, characterized in that: The test assembly includes a temperature sensor and a humidity sensor, and the temperature sensor and the humidity sensor are embedded in the interior of the railway simply supported box girder, and / or the temperature sensor and the humidity sensor are arranged on the surface area of ​​the railway simply supported box girder.

8. The railway simply supported box girder concrete test block in-situ condition replication test system according to claim 7 is characterized in that: The test assembly includes a plurality of temperature sensors and a plurality of humidity sensors, and the plurality of temperature sensors and the plurality of humidity sensors are arranged at intervals on the railway simply supported box girder.

9. The railway simply supported box girder concrete test block in-situ condition replication test system according to claim 7, characterized in that: The multiple temperature sensors and the multiple humidity sensors are arranged in the end face area or the mid-span area of ​​the railway simply supported box girder.

10. The railway simply supported box girder concrete test block in-situ condition replication test system according to claim 7, characterized in that: The temperature sensor and the humidity sensor collect data every 0-1 hour.

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