Vertical large-tonnage loading counter-force device and loading method

Abstract

The invention discloses a vertical large-tonnage loading counter-force device and a loading method, and belongs to the technical field of engineering application, the device comprises a counter-force beam and a heavy guide rail beam, the counter-force beam comprises a beam body and foot structures arranged at the lower ends of the two sides of the beam body, the beam body and the foot structures are integrally welded and formed, and the heavy guide rail beam is connected with the counter-force beam. And the foot structure of the counter-force beam is arranged on the heavy guide rail beam through a connecting screw rod. The loading method is provided based on the device. By changing the connection mode of the vertical counter-force beam and the ground or the frame structure, the heavy guide rail beam structure with the upper plate and the lower plate is used, the load on the counter-force beam is transmitted to the long heavy guide rail beam, and then the load on the heavy guide rail beam is transmitted to the ground or the structural frame through the screw. The vertical large-tonnage loading function is achieved, an effective test application way is provided for civil engineering and structural engineering in the technical field of model test and practical engineering application, and the purpose of large-tonnage vertical loading can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of engineering applications, and in particular to a vertical large-tonnage loading reaction force device and a loading method. Background Art

[0002] Soil-foundation-structure interaction is a major research topic in civil engineering and has attracted extensive attention and research at home and abroad for decades. In fields such as civil engineering and structural engineering, large-tonnage vertical loading tests are usually required to analyze the stress characteristics of civil engineering structures and some special structural components.

[0003] Currently, there are few large-tonnage vertical loading test devices. Since the reaction beam needs to bear a large load vertically, the fixing method of the beam to the ground is particularly important. Traditional vertical reaction beams are usually fixed directly to the ground or frame structure through anchor bolts, which causes large local stress on the ground or frame structure. Therefore, the increase in the loading tonnage of the vertical reaction beam is directly limited by the connection method.

[0004] In view of the above problems, the present invention proposes a vertical large-tonnage loading reaction device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a vertical large-tonnage loading reaction force device and loading method. By changing the connection method between the vertical reaction force beam and the ground or frame structure, a heavy-duty guide rail beam structure with an upper and lower plate structure is used to transfer the load on the reaction force beam to a longer heavy-duty guide rail beam, and then the load on the heavy-duty guide rail beam is transferred to the ground or the structural frame through a screw, thereby realizing the function of vertical large-tonnage loading, providing an effective test application approach for civil engineering and structural engineering in the field of model testing and actual engineering application technology, and achieving the purpose of large-tonnage vertical loading.

[0006] To achieve the above-mentioned objectives, the present invention provides a vertical large-tonnage loading reaction device, including a reaction beam and a heavy-duty guide beam, the reaction beam including a beam body and a foot structure arranged at the lower ends of both sides of the beam body, the beam body and the foot structure are welded integrally, and the foot structure of the reaction beam is arranged on the heavy-duty guide beam through a connecting screw.

[0007] Preferably, the reaction beam is configured as a steel beam structure, the width of the foot structure of the reaction beam is greater than the width of the reaction beam body, and the cross-sections of the reaction beam body and the foot structure are both rectangular.

[0008] Preferably, the beam body and the foot structure of the reaction beam are formed by cross-welding of transverse plates and longitudinal plates, and a lateral support plate is provided between the beam body and the foot structure, so that the force on the beam body structure is more reasonable and the structure is more stable.

[0009] Preferably, the heavy-duty guide rail beam comprises an upper plate and a lower plate, the upper plate and the lower plate are connected by a vertical steel plate, the upper plate is connected to the foot structure of the reaction beam, and the lower plate is connected to the ground or a frame structure.

[0010] Preferably, a plurality of screw holes are provided at corresponding positions of the upper plate and the lower plate of the heavy rail beam and between the gaps between the lateral support plate and the foot structure; The screw holes between the lateral support plate and the foot structure are arranged in two rows, with 9 screw holes in each row, which are connected to the upper plate of the bottom heavy-duty guide rail beam through 18 connecting screws. The reaction beam transfers the load it bears to the heavy-duty guide rail beam through the screws on both sides, and the entire heavy-duty guide rail beam shares the force. There are two rows of screw holes distributed longitudinally on the lower plate of the heavy-duty guide beam. All the bolt holes in the length direction of the lower plate are connected to the ground or structural frame through screws. All the loads borne on the heavy-duty guide beam are transferred to the ground or frame structure through all the screws in the lower plate of the heavy-duty guide beam.

[0011] Based on the above vertical large-tonnage loading reaction device, a loading method is proposed, which specifically includes the following steps: S1. Fix the heavy guide rail beam on the ground or frame structure, and lock the lower plate of the heavy guide rail beam with the ground or frame structure through screws; S2. Place the reaction beam at the corresponding position of the upper end of the heavy guide rail beam, and connect the foot structure of the reaction beam to the upper plate of the heavy guide rail beam through a connecting screw; S3. Install the loading device at the lower end of the reaction beam and start the loading device to begin the test.

[0012] Preferably, the reaction beam can be fixed at different positions of the heavy guide rail beam, so as to realize the function of vertical loading of the reaction beam at different positions of the heavy guide rail beam.

[0013] Therefore, the present invention provides a vertical large-tonnage loading reaction force device and loading method, which changes the connection mode between the vertical reaction force beam and the ground or frame structure, uses a heavy-duty guide rail beam structure with an upper and lower plate structure, transfers the load on the reaction force beam to a longer heavy-duty guide rail beam, and then transfers the load on the heavy-duty guide rail beam to the ground or structural frame through a screw, thereby realizing the function of vertical large-tonnage loading, providing an effective test application approach for civil engineering and structural engineering in the fields of model testing and actual engineering application technology, and can achieve the purpose of large-tonnage vertical loading.

[0014] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a structural schematic diagram of an embodiment of the present invention; Figure 2 A front view of an embodiment of the present invention; Figure 3 A schematic diagram of the connection between the reaction beam and the heavy guide rail beam according to an embodiment of the present invention; Reference numerals: 1. Reaction beam; 101. Beam body; 102. Foot structure; 2. Heavy guide beam; 3. Lateral support plate; 4. Connecting screw; 5. Fixing screw; 6. Upper plate; 7. Lower plate; 8. Steel plate. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0018] Example

[0019] like Figure 1-3 As shown, the present invention provides a vertical large-tonnage loading reaction device, including a reaction beam 1 and a heavy-duty guide beam 2. The reaction beam 1 is set as a steel beam structure, which is welded from Q355-B thin plates; the reaction beam 1 includes a beam body 101 and a foot structure 102 arranged at the lower ends of both sides of the beam body 101, the beam body 101 and the foot structure 102 are welded into one piece, and the loading device can be connected to any position under the beam body 101 by bolts or other methods to realize loading at any position.

[0020] The width of the foot structure 102 of the reaction beam 1 is greater than the width of the reaction beam body 101. The cross-sections of the reaction beam body 101 and the foot structure 102 are both rectangular, and are formed by cross-welding of transverse plates and longitudinal plates. A lateral support plate 3 is arranged between the beam body 101 and the foot structure 102, so that the force of the beam body 101 structure is more reasonable and the structure is more stable. The screw holes between the lateral support plate 3 and the foot structure 102 are arranged in 2 rows, and each row is arranged with 9 screw holes. The foot structure 102 of the reaction beam 1 is fixed on the heavy-duty guide beam 2 through the connecting screws 4, and is connected to the upper plate 6 of the bottom heavy-duty guide beam 2 through 18 connecting screws 4. The reaction beam 1 transfers the load it bears to the heavy-duty guide beam 2 through the connecting screws 4 on both sides, and the entire heavy-duty guide beam 2 shares the force throughout its length.

[0021] The heavy guide rail beam 2 includes an upper plate 6 and a lower plate 7, which are connected by a vertical steel plate 8. The upper plate 6 is connected to the foot structure 102 of the reaction beam 1, and the lower plate 7 is connected to the ground or the frame structure.

[0022] Two rows of bolt holes are longitudinally distributed on the lower plate 7 of the heavy-duty guide rail beam 2. All bolt holes in the lengthwise direction of the lower plate 7 are connected to the ground or the structural frame through the fixing screws 5, so that the load borne by the entire length of the heavy-duty guide rail beam 2 is transferred to the ground or the structural frame. The reaction beam 1 can be fixed at different positions of the heavy-duty guide rail beam 2, thereby realizing the function of the reaction beam 1 to perform vertical loading at different positions of the heavy-duty guide rail beam 2.

[0023] Based on the above vertical large-tonnage loading reaction device, a loading method is proposed, which specifically includes the following steps: S1, fix the heavy guide rail beam 2 on the ground or frame structure, and lock the lower plate 7 of the heavy guide rail beam 2 with the ground or frame structure by fixing the screw 5; S2, placing the reaction beam 1 at the corresponding position of the upper end of the heavy guide rail beam 2, and connecting the foot structure 102 of the reaction beam 1 to the upper plate of the heavy guide rail beam 2 by connecting the screw rod 4; S3. Install the loading device at the lower end of the beam body 101 of the reaction beam 1 as required, and start the loading device to begin the test.

[0024] Therefore, the present invention provides a vertical large-tonnage loading reaction force device and loading method, which changes the connection mode between the vertical reaction force beam and the ground or frame structure, uses a heavy-duty guide rail beam structure with an upper and lower plate structure, transfers the load on the reaction force beam to a longer heavy-duty guide rail beam, and then transfers the load on the heavy-duty guide rail beam to the ground or structural frame through a screw, thereby realizing the function of vertical large-tonnage loading, providing an effective test application approach for civil engineering and structural engineering in the fields of model testing and actual engineering application technology, and can achieve the purpose of large-tonnage vertical loading.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A vertical large-tonnage loading reaction device, characterized in that: It comprises a reaction beam and a heavy guide rail beam, wherein the reaction beam comprises a beam body and foot structures arranged at the lower ends of both sides of the beam body, the beam body and the foot structures are welded integrally, and the foot structure of the reaction beam is arranged on the heavy guide rail beam through a connecting screw.

2. A vertical large-tonnage loading reaction device according to claim 1, characterized in that: The reaction beam is configured as a steel beam structure, and the width of the foot structure of the reaction beam is greater than the width of the reaction beam body.

3. A vertical large-tonnage loading reaction device according to claim 2, characterized in that: The beam body and the foot structure of the reaction beam are formed by cross-welding of a transverse plate and a longitudinal plate, and a lateral support plate is arranged between the beam body and the foot structure.

4. A vertical large-tonnage loading reaction device according to claim 3, characterized in that: The heavy-duty guide rail beam comprises an upper plate and a lower plate, the upper plate and the lower plate are connected via a vertical steel plate, the upper plate is connected to the foot structure of the reaction beam, and the lower plate is connected to the ground or a frame structure.

5. A vertical large-tonnage loading reaction device according to claim 4, characterized in that: A plurality of screw holes are provided at corresponding positions of the upper plate and the lower plate of the heavy guide rail beam and between the gaps between the lateral support plate and the foot structure.

6. A loading method for a vertical large-tonnage loading reaction device according to any one of claims 1 to 5, characterized in that: The specific steps include: S1. Fix the heavy-duty guide rail beam on the ground or frame structure, and lock the lower plate of the heavy-duty guide rail beam with the ground or frame structure through screws; S2. Place the reaction beam at the corresponding position of the upper end of the heavy guide rail beam, and connect the foot structure of the reaction beam to the upper plate of the heavy guide rail beam through a connecting screw; S3. Install the loading device at the lower end of the reaction beam and start the loading device to begin the test.

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