RCS (Radar Cross Section) combined node bearing capacity experimental device

Abstract

The utility model discloses an RCS combination node bearing capacity experiment device, which comprises a base, the upper wall surface of the base is provided with an inserting groove, and a node test piece is movably inserted in the inserting groove. The utility model relates to the technical field of civil engineering structure performance test equipment, the position of a first hydraulic cylinder is flexibly adjusted through the work of a screw rod module, and the working efficiency is improved; according to the RCS combined node test piece bearing capacity test structure, a first hydraulic cylinder in the test structure applies pressure to a cross beam in a node test piece, so that the bearing capacity of different beam column connecting parts can be accurately tested, the test precision is improved, and the RCS combined node test piece bearing capacity test structure is suitable for testing different types of RCS combined node test pieces; the distance measuring instrument in the detection assembly monitors the change of the moving rod in real time, the deformation state of the cross beam in the stress process can be accurately reflected, the deformation characteristic of the node can be known, the damage mode of the node can be predicted by observing the deformation trend and speed, and an important basis is provided for evaluating the bearing capacity limit of the node.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering structure performance test equipment, in particular to an RCS combined node bearing capacity test device. Background Art

[0002] The RCS composite joint structure, or reinforced concrete column-steel beam composite frame structure, is a novel structural system that combines the advantages of reinforced concrete columns and steel beams. Given that RCS composite joints are subject to various loads in practical applications, the bearing capacity of the RCS composite joints is crucial to the stability and safety of the overall structure. To ensure the reliability and safety of newly designed RCS composite joints in practical applications, bearing capacity testing is necessary before commissioning. Therefore, a RCS composite joint bearing capacity test device was designed.

[0003] There may already be technical means to solve the above problems in the existing technology, but this case intends to provide an alternative or replacement technical solution. Utility Model Content

[0004] To solve the problems raised in the background technology, the present invention is implemented through the following technical solutions: an RCS composite node load-bearing capacity test device, comprising a base, an upper wall of the base having an insertion slot, a node test piece movably inserted into the insertion slot, a clamping structure mounted on the insertion slot, the clamping structure movably fitted to the node test piece, and a test structure mounted on the base and located on one side of the insertion slot;

[0005] The test structure includes a screw module, which is installed on the upper wall of the base. A portal frame is installed on the movable ends of the two screw modules. A first hydraulic cylinder is inserted on the portal frame. The first hydraulic cylinder is installed corresponding to the node test piece. A first pressure sensor is installed at the telescopic end of the first hydraulic cylinder. A pressure block is installed on the first pressure sensor. A detection component is installed on the portal frame and on one side of the first hydraulic cylinder.

[0006] Preferably, the detection component includes a second hydraulic cylinder, which is installed on the portal frame and located on one side of the first hydraulic cylinder. An extension plate is installed at the telescopic end of the second hydraulic cylinder, a sleeve is installed on the upper wall of the extension plate, a moving rod is movably inserted on the sleeve, the moving rod is installed corresponding to the node test piece, a spring is installed between the moving rod and the extension plate, and a distance measuring instrument is installed on the wall of the extension plate and inside the sleeve.

[0007] Preferably, the clamping structure includes a plurality of third hydraulic cylinders, which are inserted into the inner wall surface of the insertion slot in a circular array, and a clamping plate is installed at the telescopic end of each third hydraulic cylinder.

[0008] Preferably, the number of the screw modules is two.

[0009] Preferably, a second pressure sensor is installed on the upper end of the moving rod.

[0010] Preferably, the number of the spring is at least one.

[0011] Beneficial effects

[0012] The utility model provides an RCS combined node bearing capacity test device. Compared with the existing technology, it has the following beneficial effects: the position of the first hydraulic cylinder is flexibly adjusted by the operation of the screw module so that it is aligned with different positions of the beam in the node test piece, thereby realizing accurate testing of the bearing capacity of different beam-column connection parts, improving the test accuracy, and being suitable for testing different types of RCS combined node test pieces. The first hydraulic cylinder in the test structure applies pressure to the beam in the node test piece, and the distance measuring instrument in the detection component monitors the changes of the moving rod in real time, which can accurately reflect the deformation state of the beam during the force-bearing process, helps to understand the deformation characteristics of the node, and can predict the failure mode of the node by observing the deformation trend and speed, providing an important basis for evaluating the bearing capacity limit of the node. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main cross-sectional structure of an RCS combined node bearing capacity experimental device of the present utility model.

[0014] Figure 2 This is a side view schematic diagram of the test structure of an RCS combined node bearing capacity experimental device of the utility model.

[0015] Figure 3 This is a partial three-dimensional structural schematic diagram of an RCS combined node bearing capacity experimental device of the utility model.

[0016] Figure 4 This is a new RCS combined node bearing capacity experimental device Figure 1 Schematic diagram of the partially enlarged structure.

[0017] In the figure: 1. Base, 2. Insertion slot, 3. Node test piece, 4. Screw module, 5. Door frame, 6. First hydraulic cylinder, 7. First pressure sensor, 8. Second hydraulic cylinder, 9. Extension plate, 10. Sleeve, 11. Moving rod, 12. Spring, 13. Distance measuring instrument, 14. Third hydraulic cylinder, 15. Clamp, 16. Second pressure sensor. DETAILED DESCRIPTION

[0018] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0019] Example: Through the personnel in this field, all electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers should be selected according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between each electrical component is completed in the order of working. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0020] See also Figure 1-4 A RCS composite node bearing capacity test device includes a base 1, an upper wall surface of the base 1 is provided with an insertion slot 2, a node test piece 3 is movably inserted into the insertion slot 2, a clamping structure is installed on the insertion slot 2, the clamping structure is movably fitted on the node test piece 3, and a test structure is installed on the base 1 and on one side of the insertion slot 2;

[0021] It should be noted that an RCS combined node test piece 3 is manufactured according to the standard actually used, the column portion of the node test piece 3 is inserted into the insertion slot 2, and the node test piece 3 is clamped and fixed by a clamping structure;

[0022] Specifically, the test structure includes a screw module 4, which is installed on the upper wall of the base 1. A portal frame 5 is installed on the movable ends of the two screw modules 4. A first hydraulic cylinder 6 is inserted on the portal frame 5. The first hydraulic cylinder 6 is installed corresponding to the node test piece 3. A first pressure sensor 7 is installed at the telescopic end of the first hydraulic cylinder 6. A pressure block is installed on the first pressure sensor 7. A detection component is installed on the portal frame 5 and on one side of the first hydraulic cylinder 6.

[0023] Specifically, the detection assembly includes a second hydraulic cylinder 8, which is installed on the portal frame 5 and is located on one side of the first hydraulic cylinder 6. An extension plate 9 is installed at the telescopic end of the second hydraulic cylinder 8. A sleeve 10 is installed on the upper wall of the extension plate 9. A moving rod 11 is movably inserted on the sleeve 10. The moving rod 11 is installed corresponding to the node test piece 3. A spring 12 is installed between the moving rod 11 and the extension plate 9. A distance measuring instrument 13 is installed on the upper wall of the extension plate 9 and inside the sleeve 10.

[0024] As a preference, further, a second pressure sensor 16 is installed at the upper end of the moving rod 11;

[0025] It should be noted that the crossbeam of the node test piece 3 is aligned with the test structure, and the first hydraulic cylinder 6 is aligned with different positions of the crossbeam by moving the screw module 4, that is, the distance between the first hydraulic cylinder 6 and the beam-column connection part of the node test piece 3 is adjusted. During the test, the first hydraulic cylinder 6 is controlled to extend. When the pressure block is attached to the upper wall of the crossbeam in the node test piece 3, the first pressure sensor 7 detects the pressure value, and the first hydraulic cylinder 6 stops extending. Then, the second hydraulic cylinder 8 is controlled to contract until the second pressure sensor 16 is attached to the lower wall of the crossbeam. At this time, the second pressure sensor 16 detects the pressure value, and the second hydraulic cylinder 8 stops contracting. Then, the test work is started, the first hydraulic cylinder 6 starts to extend, and the pressure block presses down the crossbeam in the node test piece 3, applying a load to the crossbeam in the node test piece 3. When the crossbeam is deformed, the crossbeam causes the moving rod 11 to descend in the sleeve 10. At this time, the distance measuring instrument 13 detects the change of the moving rod 11, thereby monitoring the deformation state of the crossbeam.

[0026] Within the elastic range, the deformation of the beam is proportional to the load it bears. Therefore, the beam deformation data monitored by the distance measuring instrument 13 can reflect the load borne by the node. When the deformation reaches a certain level, the node enters the plastic stage. At this time, the relationship between deformation and load is no longer strictly proportional. Therefore, the deformation data can be used as a reference for evaluating the bearing capacity of the node.

[0027] The distance measuring instrument 13 can also be used to observe the deformation trend and speed of the beam, thereby determining the failure mode of the node. For example, if the deformation of the beam suddenly accelerates or reaches a certain critical value, it means that the node is about to fail. By evaluating and analyzing the load and deformation data before failure, the bearing capacity limit of the node can be assessed.

[0028] Specifically, the clamping structure includes a plurality of third hydraulic cylinders 14, which are inserted into the inner wall of the insertion slot 2 in a circular array, and a clamping plate 15 is installed at the telescopic end of each third hydraulic cylinder 14;

[0029] It should be noted that, by extending the plurality of third hydraulic cylinders 14 , the clamping plates 15 clamp and fix the node test piece 3 , thereby fixing the node test piece 3 ;

[0030] As a preference, further, the number of the screw modules 4 is two;

[0031] Preferably, further, the number of the spring 12 is at least one.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An RCS combined node bearing capacity test device, comprising a base (1), wherein an insertion slot (2) is provided on an upper wall surface of the base (1), and a node test piece (3) is movably inserted into the insertion slot (2), characterized in that: A clamping structure is installed on the insertion slot (2), and the clamping structure is movably attached to the node test piece (3). A test structure is installed on the base (1) and located on one side of the insertion slot (2); The test structure comprises a screw module (4), the screw module (4) being mounted on the upper wall of the base (1), a portal frame (5) being mounted on the movable ends of the two screw modules (4), a first hydraulic cylinder (6) being mounted on the portal frame (5), the first hydraulic cylinder (6) being mounted corresponding to the node test piece (3), a first pressure sensor (7) being mounted on the telescopic end of the first hydraulic cylinder (6), a pressure block being mounted on the first pressure sensor (7), and a detection component being mounted on the portal frame (5) and located on one side of the first hydraulic cylinder (6).

2. The RCS combined node carrying capacity test device according to claim 1 is characterized in that: The detection component includes a second hydraulic cylinder (8), which is installed on the portal frame (5) and located on one side of the first hydraulic cylinder (6). An extension plate (9) is installed at the telescopic end of the second hydraulic cylinder (8), a sleeve (10) is installed on the upper wall of the extension plate (9), a moving rod (11) is movably inserted on the sleeve (10), the moving rod (11) is installed corresponding to the node test piece (3), a spring (12) is installed between the moving rod (11) and the extension plate (9), and a distance measuring instrument (13) is installed on the upper wall of the extension plate (9) and inside the sleeve (10).

3. The RCS combined node carrying capacity test device according to claim 1 is characterized in that: The clamping structure comprises a plurality of third hydraulic cylinders (14), which are inserted into the inner wall surface of the insertion slot (2) in a circular array, and a clamping plate (15) is installed at the telescopic end of each third hydraulic cylinder (14).

4. The RCS combined node carrying capacity test device according to claim 1, characterized in that: The number of the screw rod modules (4) is two.

5. The RCS combined node carrying capacity test device according to claim 2, characterized in that: A second pressure sensor (16) is installed on the upper end of the moving rod (11).

6. The RCS combined node carrying capacity test device according to claim 2, characterized in that: The number of the spring (12) is at least one.

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