A static load test device

Abstract

The utility model relates to the technical field of static load experiments, and specifically discloses a static load experiment device. By dividing a roadbed into a plurality of roadbed units, and connecting adjacent roadbed units to each other, the overall stability of a pier formed by arranging prefabricated reinforced concrete blocks together can be greatly improved compared with the traditional method. The steel box girder side pier is overlapped on the roadbed, and the length direction of the steel box girder side pier is orthogonal to the length direction of the roadbed to form a crisscross bracing structure, so that the friction force and the bite force are greatly increased, thereby improving the stability of the entire static load experiment device, and ensuring the safety and stability during the loading construction and the experiment.

Description

Technical Field

[0001] The utility model relates to the technical field of static load experiments, in particular to a static load experiment device. Background Art

[0002] Static load test is a commonly used detection method in foundation detection. It is also the most intuitive and reliable method to detect the bearing capacity of the foundation. Static load test is to apply vertical pressure on the foundation or apply vertical pressure or upward pulling force on the pile foundation to detect the displacement of the foundation over time, so as to determine the bearing capacity of the foundation.

[0003] Before the static load test, the load construction of the weight test platform must be carried out first. The traditional test platform is to piece together prefabricated reinforced concrete blocks and pile them on the foundation at a certain distance from the test point as side piers. Then a certain number of steel beams are set on the concrete side piers as secondary beams to form a static load test platform to support the upper load counterweight.

[0004] From the beginning of loading and counterweighting to the completion of the entire loading process and before the start of the test, the foundation soil under the side pier must be able to withstand the compressive stress applied by the platform. Since the contact area between the side pier and the foundation is small, the bearing capacity of the foundation soil is required to be high. However, the test blocks in the concrete test block pier are independent of each other and not a whole, which is easy to cause insufficient overall stability and uneven foundation settlement.

[0005] In addition, the friction and bite force between the pier concrete and the secondary beam slab are insufficient, and when the platform tilts, it is very easy to slide and tip over, which directly affects the stability and safety of the test.

[0006] The technical problem to be solved by this application is: to design a static load experimental device that can improve the stability and safety of the experiment. Utility Model Content

[0007] In order to overcome the deficiencies of the prior art, the utility model aims to provide a static load test device which can improve the stability and safety of the experiment.

[0008] The technical solution adopted by the utility model is: a static load test device, comprising a main beam, a steel box beam type side pier, a secondary beam and a roadbed plate, the roadbed plate comprises a plurality of roadbed plate units spliced ​​to each other, adjacent roadbed plate units are detachably connected, the length direction of the steel box beam type side pier is orthogonal to the length direction of the roadbed plate, the secondary beam is installed on the upper part of the steel box beam type side pier, and the length direction of the secondary beam is orthogonal to the length direction of the steel box beam type side pier.

[0009] In some embodiments, the roadbed plate unit includes an upper wing plate and a lower wing plate arranged in parallel, a plurality of webs are equidistantly arranged between the upper wing plate and the lower wing plate, and two ends of the webs are respectively connected to the upper wing plate and the lower wing plate.

[0010] In some embodiments, a plurality of mutually corresponding bolt holes are provided between adjacent roadbed plate units, and the adjacent roadbed plates are connected to each other by fastening bolts through the bolt holes.

[0011] In some embodiments, the steel box girder side pier is a truss structure, a plurality of connecting rods are equidistantly arranged at the steel box girder side pier, and mutually connected oblique support rods are arranged between adjacent connecting rods.

[0012] In some embodiments, mutually connected oblique rods are further provided between adjacent connecting rods, and the oblique rods are intersected with the oblique supporting rods.

[0013] In some embodiments, two steel box girder side piers and two roadbed plates are provided, and the steel box girder side piers and the roadbed plates are arranged in a tic-tac-toe shape.

[0014] In some embodiments, the main beam includes a first upper top plate and a first lower bottom plate, and a plurality of first connecting plates are equidistantly provided between the first upper top plate and the first lower bottom plate.

[0015] In some embodiments, a first reinforcing rib is further provided between adjacent first connecting plates, and two ends of the first reinforcing rib are respectively connected to the first upper top plate and the first lower bottom plate.

[0016] In some embodiments, the secondary beam includes a second upper top plate and a second lower bottom plate, a plurality of second connecting plates are equidistantly provided between the second upper top plate and the second lower bottom plate, second reinforcing ribs are provided between adjacent second connecting plates, and both ends of the second reinforcing ribs are respectively connected to the second upper top plate and the second lower bottom plate.

[0017] In some embodiments, the secondary beam and the steel box beam side piers are arranged in a tic-tac-toe pattern.

[0018] The utility model has the following technical effects: by dividing the roadbed plate into a plurality of roadbed plate units, and connecting adjacent roadbed plate units to each other, the overall stability of the piers formed by arranging prefabricated reinforced concrete blocks together in a traditional manner can be greatly improved, and the steel box girder side piers are overlapped on top of the roadbed plate, and the length direction of the steel box girder side piers is orthogonal to the length direction of the roadbed plate to form a criss-cross bracing structure, thereby greatly increasing the friction force and the bite force, thereby improving the stability of the entire static load test device, and ensuring the safety and stability during the loading construction and the test process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front structural schematic diagram of the static load test device of the utility model;

[0020] Figure 2 It is a side structural schematic diagram of the static load test device of the utility model;

[0021] Figure 3 It is a schematic diagram of the top view structure of the overlap between the steel box girder side pier and the roadbed plate of the static load test device of the utility model;

[0022] Figure 4 It is a schematic diagram of the steel box beam side pier structure of the static load test device of the utility model;

[0023] Figure 5 This is a schematic diagram of the roadbed structure of the static load test device of the utility model;

[0024] Figure 6 This is a schematic diagram of the main beam structure of the static load test device of the utility model;

[0025] Figure 7 It is a schematic diagram of the secondary beam structure of the static load test device of the utility model.

[0026] The numbers and names in the figure correspond to each other as follows: 1. main beam; 2. steel box girder side pier; 3. secondary beam; 4. roadbed plate; 40. upper wing plate; 41. lower wing plate; 42. web plate; 20. connecting rod; 21. oblique support rod; 22. oblique rod; 10. first upper top plate; 11. first lower bottom plate; 12. first connecting plate; 13. first stiffener; 30. second upper top plate; 31. second lower bottom plate; 32. second connecting plate; 33. second stiffener. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-7The utility model provides a technical solution: a static load test device, including a main beam 1, a steel box beam side pier 2, a secondary beam 3 and a roadbed 4, the roadbed 4 includes a plurality of roadbed units spliced ​​with each other, each roadbed unit includes an upper wing plate 40 and a lower wing plate 41 arranged in parallel up and down, and a plurality of webs 42 are equidistantly arranged between the upper wing plate 40 and the lower wing plate 41, and the two ends of the web 42 are respectively connected to the upper wing plate 40 and the lower wing plate 41, so as to enhance the rigidity of the roadbed 4, and a plurality of corresponding bolt holes are also arranged between adjacent roadbed units, and adjacent roadbeds 4 are locked by using bolts to pass through the corresponding bolt holes, so as to realize detachable connection between adjacent roadbeds 4, and when the roadbed 4 needs to be broken after the experiment, since the adjacent roadbeds 4 are fixedly connected by using bolts, the entire roadbed 4 can be disassembled by only loosening and removing the bolts, which can greatly improve the experimental efficiency and economic benefits.

[0029] The steel box girder side pier 2 is overlapped on top of the roadbed plate 4, and the length direction of the steel box girder side pier 2 is orthogonal to the length direction of the roadbed plate 4. The steel box girder side pier 2 is a truss structure. A plurality of connecting rods 20 are equidistantly arranged between the upper end and the lower end of the steel box girder side pier 2. Interconnected oblique support rods 21 are arranged between adjacent connecting rods 20. The two ends of the oblique support rods 21 are respectively connected to the upper end and the lower end of adjacent connecting rods 20, thereby improving the rigidity between the connecting rods 20. Interconnected oblique rods 22 are also arranged between adjacent connecting rods 20 in the middle of the steel box girder side pier 2. The oblique rods 22 and the oblique support rods 21 are intersected, which is equivalent to an X-shaped arrangement between the middle connecting rods 20 and the oblique rods 22 of the steel box girder side pier 2. This can further improve the load-bearing capacity and rigidity of the steel box girder side pier 2.

[0030] There are two steel box girder side piers 2 and roadbed plate 4. When loading on site, the roadbed plate 4 is spread flat on both sides of the experimental site, and then the steel box girder side piers 2 are overlapped and installed on the roadbed plate 4, so that the steel box girder side piers 2 and the roadbed plate 4 are arranged in a tic-tac-toe shape. By overlapping the steel box girder side piers 2 and the roadbed plate 4 to form a tic-tac-toe bracing structure, the friction and bite force can be greatly increased under the action of large tonnage loads, so that the roadbed plate 4 and the steel box girder side piers 2 form a stable loading platform, which can greatly improve the safety and stability during the experiment.

[0031] The main beam 1 is erected above the jack of the experimental site, and the length direction of the main beam 1 is parallel to the length direction of the steel box beam side pier 2. The main beam 1 includes a first upper top plate 10 and a first lower bottom plate 11. A plurality of first connecting plates 12 are equidistantly arranged between the first upper top plate 10 and the first lower bottom plate 11. Both ends of the first connecting plate 12 are respectively connected to the first upper top plate 10 and the first lower bottom plate 11. A first reinforcing rib 13 is also arranged between adjacent first connecting plates 12 in the middle of the main beam 1. Both ends of the first reinforcing rib 13 are also respectively connected to the first upper top plate 10 and the first lower bottom plate 11. By further arranging the first reinforcing rib 13 between the adjacent first connecting plates 12 in the middle of the main beam 1, the density between the first connecting plate 12 and the first reinforcing rib 13 is enhanced by adding the first reinforcing rib 13, so that the rigidity of the main beam 1 can be greatly improved.

[0032] The secondary beam 3 is installed on the upper part of the steel box girder side pier 2, and the length direction of the secondary beam 3 is also orthogonal to the length direction of the steel box girder side pier 2. The secondary beam 3 includes a second upper top plate 30 and a second lower bottom plate 31. A plurality of second connecting plates 32 are equidistantly arranged between the second upper top plate 30 and the second lower bottom plate 31. Second reinforcing ribs 33 are also arranged between adjacent second connecting plates 32. Both ends of the second reinforcing ribs 33 are respectively connected to the second upper top plate 30 and the second lower bottom plate 31. The secondary beam 3 and the steel box girder side pier 2 are arranged in a tic-tac-toe shape. By arranging the second connecting plate 32 and the second reinforcing ribs 33 on the secondary beam 3, the rigidity of the secondary beam 3 is also improved. The secondary beam 3 and the steel box girder side pier 2 are also arranged in a tic-tac-toe shape. The upper part of the secondary beam 3 is mainly used for arranging the counterweight platform, so the friction and bite force between the secondary beam 3 and the steel box girder side pier 2 can be greatly improved, thereby further improving the safety and stability of the entire static load test device.

[0033] The working principle or beneficial effect of the utility model is as follows: by dividing the roadbed plate 4 into a plurality of roadbed plate units, and adjacent roadbed plate units are interconnected, the overall stability of the pier formed by arranging prefabricated reinforced concrete blocks together can be greatly improved compared with the traditional method, and the steel box girder side pier 2 is overlapped on top of the roadbed plate 4, and the length direction of the steel box girder side pier 2 is orthogonal to the length direction of the roadbed plate 4 to form a criss-cross bracing structure, thereby greatly increasing the friction and bite force, thereby improving the stability of the entire static load test device, and ensuring the safety and stability during the loading construction and experiment.

[0034] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A static load test device, characterized in that: It includes a main beam, a steel box beam side pier, a secondary beam and a roadbed. The roadbed includes a plurality of roadbed units spliced ​​to each other. Adjacent roadbed units are detachably connected. The length direction of the steel box beam side pier is orthogonal to the length direction of the roadbed. The secondary beam is installed on the upper part of the steel box beam side pier. The length direction of the secondary beam is orthogonal to the length direction of the steel box beam side pier.

2. The static load test device according to claim 1, characterized in that: The road base plate unit comprises an upper wing plate and a lower wing plate arranged in parallel, a plurality of webs are equidistantly arranged between the upper wing plate and the lower wing plate, and two ends of the webs are respectively connected to the upper wing plate and the lower wing plate.

3. The static load test device according to claim 1, characterized in that: A plurality of bolt holes corresponding to each other are arranged between adjacent roadbed plate units, and adjacent roadbed plates are connected to each other by passing bolts through the bolt holes and locking them.

4. The static load test device according to claim 1, characterized in that: The steel box girder type side pier is a truss structure, and a plurality of connecting rods are equidistantly arranged on the steel box girder type side pier, and mutually connected oblique support rods are arranged between adjacent connecting rods.

5. The static load test device according to claim 4, characterized in that: Interconnected oblique rods are also provided between adjacent connecting rods, and the oblique rods are intersected with the oblique supporting rods.

6. The static load test device according to claim 1, characterized in that: The steel box girder type side pier and the roadbed plate are each provided with two, and the steel box girder type side pier and the roadbed plate are arranged in a tic-tac-toe shape.

7. The static load test device according to claim 1, characterized in that: The main beam comprises a first upper top plate and a first lower bottom plate, and a plurality of first connecting plates are equidistantly arranged between the first upper top plate and the first lower bottom plate.

8. The static load test device according to claim 7, characterized in that: A first reinforcing rib is further provided between adjacent first connecting plates, and two ends of the first reinforcing rib are respectively connected to the first upper top plate and the first lower bottom plate.

9. The static load test device according to claim 1, characterized in that: The secondary beam includes a second upper top plate and a second lower bottom plate, a plurality of second connecting plates are equidistantly arranged between the second upper top plate and the second lower bottom plate, second reinforcing ribs are arranged between adjacent second connecting plates, and two ends of the second reinforcing ribs are respectively connected to the second upper top plate and the second lower bottom plate.

10. The static load test device according to claim 1, characterized in that: The secondary beam and the steel box beam side pier are arranged in a crisscross pattern.

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