A movable reaction wall for hybrid simulation experiments

Abstract

This invention discloses a movable reaction wall for hybrid simulation testing, belonging to the field of hybrid simulation testing technology. It includes: multiple support columns arranged in an array, with the first end of each support column fixedly connected to an embedded part in the ground of the vibration table; multiple connectors disposed between adjacent support columns and spaced apart along the height direction of the support columns; and actuator supports, adjustable in height and disposed on the outer sides of adjacent support columns. During the simulation test, the actuator supports are connected to the hybrid simulation test actuator. This invention can be used for hybrid simulation testing and is easy to disassemble, assemble, and store, facilitating material reuse and avoiding resource waste.

Description

Technical Field

[0001] This invention belongs to the field of hybrid simulation test technology, and in particular relates to a movable reaction wall for hybrid simulation tests. Background Technology

[0002] Hybrid simulation tests combine the advantages of quasi-static tests and shaking table tests, enabling large-scale or even full-scale tests to obtain the seismic response of structural systems. Reaction walls are required for support during hybrid simulation tests.

[0003] Currently, most reaction walls are constructed using cast-in-place reinforced concrete walls, with embedded parts and loading holes within the reinforced concrete wall. This method results in reinforced concrete reaction walls that occupy a large area, have a long construction period, and are immovable and non-dismantlable. Furthermore, the high precision required for installing the embedded parts and loading holes in the reinforced concrete reaction wall makes it difficult to achieve during construction. Summary of the Invention

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] An active reaction wall for hybrid simulation experiments includes:

[0006] Multiple support columns arranged in an array, with the first end of each support column fixedly connected to an embedded part in the ground of the vibration table;

[0007] Multiple connectors are provided between two adjacent support columns and spaced apart along the height direction of the support columns.

[0008] An actuator support is provided, which is height-adjustably positioned on the outside of two adjacent support columns; during the simulation test, the actuator support is connected to the hybrid simulation test actuator.

[0009] Furthermore, the support column includes at least one steel column, and the at least one steel column is connected end to end in sequence along the height direction; a base plate is fixedly connected to the first end of the steel column, and a top plate is fixedly connected to the second end of the steel column;

[0010] The bottom plate of the lowest steel column is fixedly connected to the embedded part of the vibration table ground; the top plate of one of the two adjacent steel columns is fixedly connected to the bottom plate of the other steel column.

[0011] The actuator support is fixedly connected to the second end of the steel column located at the top.

[0012] Furthermore, the steel column comprises:

[0013] The main body of the steel column has a cross-shaped cross section;

[0014] Four connecting plates are arranged circumferentially along the main body of the steel column and fixedly connected to the main body of the steel column, wherein two adjacent connecting plates are arranged perpendicularly; multiple ribs are arranged between the connecting plates and the main body of the steel column and are spaced apart along the height direction of the main body of the steel column to increase the connection rigidity between the connecting plates and the main body of the steel column.

[0015] Furthermore, the connecting plate and the actuator support, as well as the connecting plate and the connecting member, are all fixedly connected by bolts.

[0016] Furthermore, the connecting plate is provided with multiple sets of first bolt holes at intervals along the height direction of the steel column body, the actuator support is provided with multiple second bolt holes that mate with the first bolt holes, and is fixedly connected by first bolts; the connecting piece is provided with multiple third bolt holes that mate with the first bolt holes, and is fixedly connected by second bolts.

[0017] Furthermore, the connector includes:

[0018] Two end plates;

[0019] A vertical plate arranged perpendicularly to the two end plates;

[0020] Two horizontal plates are arranged opposite each other, and the horizontal plates are perpendicular to the vertical plate and the end plate;

[0021] A cross-shaped stiffening rib is located within the space enclosed by the vertical plate, the end plate, and the horizontal plate, and is fixedly connected to the vertical plate, the end plate, and the horizontal plate.

[0022] The end plate is provided with a plurality of third bolt holes that mate with the first bolt holes.

[0023] Furthermore, the actuator support includes:

[0024] Two connecting vertical plates set opposite each other;

[0025] A connecting horizontal plate located between the two connecting vertical plates and forming an I-shaped cross-section with the two connecting vertical plates;

[0026] Multiple transverse stiffening ribs are located between the two connecting vertical plates, and the multiple transverse stiffening ribs are perpendicular to the connecting horizontal plate and are spaced apart along the length direction of the connecting vertical plate;

[0027] Multiple connecting round steel pipes are spaced apart between two adjacent transverse stiffening ribs and are fixedly connected to two connecting vertical plates.

[0028] Beneficial effects:

[0029] 1. This invention can be used for hybrid simulation experiments, and is easy to disassemble, assemble and store, facilitating the reuse of materials and avoiding resource waste.

[0030] 2. This invention adjusts the position of the actuator support, including changes in the inner and outer positions of the steel column and changes in the vertical position of the steel column, to meet the requirements of different mixed simulation tests and laboratory site requirements.

[0031] 3. This invention can achieve changes in the height of the reaction wall by adjusting the number of vertical steel column connections. Attached Figure Description

[0032] Figure 1 This is a structural schematic diagram of a movable reaction wall;

[0033] Figure 2 This is a structural schematic diagram of the steel column;

[0034] Figure 3 This is a schematic diagram of the cross-sectional structure of the steel column;

[0035] Figure 4 This is a structural schematic diagram of the connector;

[0036] Figure 5 This is a schematic diagram of the actuator support structure;

[0037] Among them, 1. steel column; 11. base plate; 12. connecting plate; 13. top plate; 14. rib plate; 2. connector; 21. end plate; 22. stiffening rib; 3. actuator support; 31. connecting round steel pipe; 32. transverse stiffening rib. Detailed Implementation

[0038] Example 1

[0039] refer to Figure 1-5 An active reaction wall for hybrid simulation experiments, comprising:

[0040] Multiple support columns arranged in an array, with the first end of each support column fixedly connected to the ground embedded part of the vibration table;

[0041] Multiple connectors 2 are provided between two adjacent support columns and are spaced apart along the height direction of the support columns;

[0042] Actuator support 3 is installed at an adjustable height on the outside of two adjacent support columns; during the simulation test, actuator support 3 is connected to the hybrid simulation test actuator.

[0043] In this embodiment, the support columns are preferably set to 4, arranged in a linear array, that is, arranged in 2 rows and 2 columns to form a square column; the first end of the support column is fixedly connected to the pre-embedded part of the vibration table ground;

[0044] The supporting column includes at least one steel column 1, which is connected end to end along the height direction; the first end of the steel column 1 is fixedly connected to a base plate, and the second end of the steel column 1 is fixedly connected to a top plate.

[0045] Specifically, depending on the actual test height requirements, the support columns can be one, two, three, or four steel columns 1, with two, three, or four steel columns 1 connected end to end along the height direction; wherein, the base plate 11 of the bottom steel column 1 is fixedly connected to the pre-embedded parts of the vibration table ground; the top plate 13 of one of the two adjacent steel columns 1 is fixedly connected to the base plate 11 of the other steel column 1; the actuator support 3 is fixedly connected to the second end of the top steel column 1.

[0046] In this embodiment, the support column is a steel column 1, with a base plate 11 fixedly connected to the first end of the steel column 1 and a top plate 13 fixedly connected to the second end of the steel column 1.

[0047] In this embodiment, the steel column 1 includes:

[0048] The main body of the steel column has a cross-shaped cross section;

[0049] Four connecting plates 12 are arranged around the circumference of the main body of the steel column and are fixedly connected to the main body of the steel column. Among them, two adjacent connecting plates 12 are arranged perpendicularly.

[0050] Multiple ribs 14 are provided between the connecting plate 12 and the steel column body, and are spaced apart along the height direction of the steel column body to increase the connection rigidity between the connecting plate 12 and the steel column body.

[0051] In this embodiment, the connecting plate 12 and the actuator support 3, as well as the connecting plate 12 and the connecting piece 2, are fixedly connected by bolts.

[0052] In this embodiment, the connector 2 includes:

[0053] Two end plates 21;

[0054] A vertical plate perpendicular to the two end plates 21;

[0055] Two horizontal plates are set opposite each other, and the horizontal plates are set perpendicular to the vertical plates and end plates 21;

[0056] The cross-shaped stiffening rib 22 is located within the space enclosed by the vertical plate, end plate 21 and horizontal plate, and is fixedly connected to the vertical plate, end plate 21 and horizontal plate.

[0057] In this embodiment, the actuator support 3 includes:

[0058] Two connecting vertical plates set opposite each other;

[0059] A connecting horizontal plate located between two connecting vertical plates and forming an I-shaped cross-section with the two connecting vertical plates;

[0060] Multiple transverse stiffening ribs 32 are located between two connecting vertical plates. The multiple transverse stiffening ribs 32 are perpendicular to the connecting horizontal plates and are spaced apart along the length of the connecting vertical plates.

[0061] Multiple connecting round steel pipes 31 are spaced apart between two adjacent transverse stiffening ribs 32 and are fixedly connected to two connecting vertical plates.

[0062] The movable reaction wall provided in this embodiment for hybrid simulation experiments can be used in hybrid simulation experiments, and is easy to disassemble, assemble and store, facilitating the reuse of materials and avoiding resource waste.

[0063] Example 2

[0064] To meet the requirements of different hybrid simulation tests and laboratory site requirements, this embodiment is further configured based on embodiment 1.

[0065] In this embodiment, the connecting plate 12 is provided with multiple sets of first bolt holes at intervals along the height direction of the steel column body, the actuator support 3 is provided with multiple second bolt holes that mate with the first bolt holes, and is fixedly connected by the first bolts; the connecting piece 2 is provided with multiple third bolt holes that mate with the first bolt holes, and is fixedly connected by the second bolts.

[0066] In this embodiment, the height of the main body of the steel column is 6920mm, the cross-section of the main body of the steel column is cross-shaped, the cross-section size is 450mm×450mm, and the thickness is 16mm. Connecting plates 12 are set around the steel column 1. The connecting plates 12 are rectangular steel plates with a height of 6920mm, a width of 250mm, and a thickness of 25mm. The connecting plates 12 have pre-set first bolt holes for connecting the actuator support 3. The hole diameter is 32mm. The bolt holes are arranged in 2 columns and 55 rows, with a row spacing of 125mm and a column spacing of 150mm. A top plate 13 is set on the top of the main body of the steel column. The top plate 13 is a square steel plate with a side length of 700mm and a thickness of 40mm. The top plate 13 has pre-set third bolt holes with a hole diameter of 32mm for splicing between steel columns 1, so as to realize flexible changes in the height of the reaction wall and improve the applicability of the reaction wall. Ribs 14 are set vertically along the main body of the steel column.

[0067] In this embodiment, 13 ribs 14 are disposed between the connecting plate 12 and the steel column body, and are evenly spaced along the height direction of the steel column body.

[0068] The end plate 21 is provided with multiple third bolt holes that mate with the first bolt holes.

[0069] Specifically, the steel columns 1 are connected to each other by connectors 2. The main body of connector 2 is I-shaped with dimensions of 500mm×250mm×20mm×25mm. The two end plates 21 of connector 2 are rectangular steel plates with a height of 725mm, a width of 250mm, and a thickness of 25mm. The end plates 21 have pre-set third bolt holes with a diameter of 32mm. The steel columns 1 are connected by second bolts. Connector 2 is provided with stiffening ribs 22.

[0070] The bottom of the steel column 1 is provided with a base plate 11, which is a square steel plate with a side length of 650mm and a thickness of 40mm. It is fixed to the ground embedded part of the vibration table by bolts.

[0071] In this embodiment, the actuator support 3 has an I-shaped cross-section with end dimensions of 300mm×350mm×25mm×30mm and middle dimensions of 300mm×400mm×25mm×30mm. The end length is 250mm, the middle length is 600mm, and the transition section length is 75mm. Second bolt holes with a diameter of 32mm are provided at both ends. According to the requirements of the hybrid simulation test, the position of the actuator support 3 can be flexibly arranged by bolt connection, including changes in the inner and outer positions of the steel column 1 and changes in the vertical position of the steel column 1. A connecting round steel pipe 31 is preset in the middle of the actuator. The diameter of the connecting round steel pipe 31 is 42mm, the thickness is 15mm, and the length is 240mm. The hybrid simulation test actuator is connected to the actuator support 3 by the first bolt. The actuator support 3 is provided with transverse stiffening ribs 32.

[0072] In this embodiment, 16 connectors 2 are provided, with 4 connectors 2 forming a group. Each group of connectors 2 is located between two adjacent support columns and two connecting plates on the inner side, that is, they are respectively located on the four sides of the square column and are spaced apart along the height direction of the support column.

[0073] According to the actual test requirements, the actuator support 3 can be installed on any one side of the square column for testing, and the height of the actuator support 3 on the outside of the two support columns on the square column can be adjusted according to the actual needs.

[0074] This embodiment adjusts the position of the actuator support 3, including changes in the inner and outer positions of the steel column 1 and changes in the vertical position of the steel column 1, to meet the requirements of different mixed simulation tests and laboratory site requirements.

[0075] Meanwhile, by adjusting the number of vertical steel columns connected, the height of the reaction wall can be varied.

[0076] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A movable reaction wall for hybrid simulation experiments, characterized in that, include: Multiple support columns arranged in an array, with the first end of each support column fixedly connected to an embedded part in the ground of the vibration table; Multiple connectors are provided between two adjacent support columns and spaced apart along the height direction of the support columns. An actuator support is provided, which is height-adjustably positioned on the outside of two adjacent support columns; during the simulation test, the actuator support is connected to the hybrid simulation test actuator. The support column includes at least one steel column, and the at least one steel column is connected end to end in sequence along the height direction; a base plate is fixedly connected to the first end of the steel column, and a top plate is fixedly connected to the second end of the steel column; The bottom plate of the lowest steel column is fixedly connected to the embedded part of the vibration table ground; the top plate of one of the two adjacent steel columns is fixedly connected to the bottom plate of the other steel column. The actuator support is fixedly connected to the second end of the steel column located at the top. The steel column includes: The main body of the steel column has a cross-shaped cross section; Four connecting plates are arranged around the circumference of the main body of the steel column and are fixedly connected to the main body of the steel column, wherein two adjacent connecting plates are arranged perpendicularly. Multiple ribs are provided between the connecting plate and the steel column body, and are spaced apart along the height direction of the steel column body to increase the connection stiffness between the connecting plate and the steel column body. The actuator support includes: Two connecting vertical plates set opposite each other; A connecting horizontal plate located between the two connecting vertical plates and forming an I-shaped cross-section with the two connecting vertical plates; Multiple transverse stiffening ribs are located between the two connecting vertical plates, and the multiple transverse stiffening ribs are perpendicular to the connecting horizontal plate and are spaced apart along the length direction of the connecting vertical plate; Multiple connecting round steel pipes are spaced apart between two adjacent transverse stiffening ribs and are fixedly connected to two connecting vertical plates.

2. The movable reaction wall for hybrid simulation experiments according to claim 1, characterized in that, The connecting plate and the actuator support, as well as the connecting plate and the connecting member, are all fixedly connected by bolts.

3. The movable reaction wall for hybrid simulation experiments according to claim 2, characterized in that, The connecting plate is provided with multiple sets of first bolt holes at intervals along the height direction of the steel column body; the actuator support is provided with multiple second bolt holes that mate with the first bolt holes and is fixedly connected by first bolts; the connecting piece is provided with multiple third bolt holes that mate with the first bolt holes and is fixedly connected by second bolts.

4. The movable reaction wall for hybrid simulation experiments according to claim 3, characterized in that, The connector includes: Two end plates; A vertical plate arranged perpendicularly to the two end plates; Two horizontal plates are arranged opposite each other, and the horizontal plates are perpendicular to the vertical plate and the end plate; A cross-shaped stiffening rib is located within the space enclosed by the vertical plate, the end plate, and the horizontal plate, and is fixedly connected to the vertical plate, the end plate, and the horizontal plate. The end plate is provided with a plurality of third bolt holes that mate with the first bolt holes.

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