Modular steel structure force-bearing adjustable support and application method thereof

Abstract

The application relates to a modular steel structure load-bearing adjustable support and an application method thereof. The modular steel structure load-bearing adjustable support comprises a tension-compression conversion mechanism, a fixed constraint, a first core plate and a second core plate. The first end of the first core plate and the second core plate in the length direction is connected with the tension-compression conversion mechanism, and the second end of the first core plate and the second core plate in the length direction is fixedly connected with the fixed constraint. When the support is subjected to tension or compression, the tension-compression conversion mechanism can drive the first core plate and the second core plate to move in the opposite direction along the first direction, one of the first core plate and the second core plate is subjected to tension and the other is subjected to compression. Part of the core plates is subjected to yield to dissipate energy, which is beneficial to energy dissipation under the action of a large earthquake, and another part of the core plates is subjected to compression buckling to rapidly reduce the bearing capacity, so that the overall bearing capacity is degraded. Meanwhile, the effective length of the core plate can be adjusted by adjusting the spacing of the two groups of top pressing pieces along the first direction, so that the bearing capacity of the core plate can be adjusted independently of the stiffness.

Description

Technical Field

[0001] The present invention relates to the technical field of modular steel structure construction, and in particular to a modular steel structure load-bearing adjustable support and an application method thereof. Background Art

[0002] Introducing bracing components into high-rise modular structures can effectively improve their lateral resistance and energy dissipation capabilities. Traditional bracing primarily consists of conventional braces and buckling-restrained braces (BRBs). Conventional braces buckle under compression and their bearing capacity rapidly decreases, resulting in relatively poor bearing capacity and energy dissipation. BRBs are externally attached to conventional braces to constrain the core slab. This restraint prevents the core slab from buckling under compression, allowing it to reach the yield stage in both compression and tension under earthquakes and dissipate seismic energy. However, the core slab supported by BRBs transitions from the yield stage to the strengthening stage during compression and tension, further increasing its bearing capacity. This, in turn, increases the internal forces in the columns connected to the BRBs. Because modular columns in modular structures are smaller and force transmission is concentrated at the connection nodes, the continued increase in the nonlinear resistance of the braces increases the node forces and reduces the ductility of the modular columns, resulting in insufficient structural resistance and energy dissipation.

[0003] Therefore, there is an urgent need for a new modular load-bearing adjustable support that can reduce the stress level of structural columns and connection nodes under the action of a large earthquake (i.e., an earthquake). Summary of the Invention

[0004] (1) Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a modular steel structure load-bearing adjustable support and an application method thereof, which solves the problem in the prior art that ordinary supports have poor energy dissipation capacity and the continuous increase in the bearing capacity of BRB supports during major earthquakes, which may lead to easy damage to modular structural columns and their connection nodes.

[0006] (2) Technical solution

[0007] In order to achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] In a first aspect, an embodiment of the present invention provides a modular steel structure load-bearing adjustable support, comprising a tension-compression conversion mechanism, a fixed constraint, a first core plate, and a second core plate;

[0009] The tension-compression conversion mechanism and the fixed restraint member are capable of connecting adjacent columns and beams respectively;

[0010] The first core plate and the second core plate both extend along a first direction; a first end of the first core plate and the second core plate in a length direction is connected with the tension-compression conversion mechanism, and a second end of the first core plate and the second core plate in the length direction is fixedly connected with the fixed constraint member;

[0011] When the tension-compression conversion mechanism is subjected to tension or compression, the first core plate and the second core plate can be driven to move in opposite directions along the first direction, so that one of the first core plate and the second core plate is subjected to tension and the other is subjected to compression.

[0012] According to the present application, the tension-compression conversion mechanism comprises a first force transmission member and a second force transmission member;

[0013] The first force transmission member can be connected with a column or a beam; the first force transmission member and the second force transmission member can be connected to move towards each other or away from each other along the first direction at the same time; the first force transmission member is fixedly connected with a first end of the first core plate, and the second force transmission member is fixedly connected with a first end of the second core plate;

[0014] When the first force transmission member is subjected to tension or compression, the first force transmission member and the second force transmission member can be connected to move towards each other or away from each other along the first direction at the same time, so as to drive the first core plate and the second core plate to move in opposite directions along the first direction.

[0015] According to the present application, the longitudinal section of the first force transmission member and the second force transmission member is in the shape of C; the openings of the first force transmission member and the second force transmission member are opposite to each other; the first force transmission member is sleeved outside the second force transmission member and can be connected to move towards each other or away from each other along the first direction at the same time;

[0016] The first core plate fixed on the two plug-in parts of the first force transmission member is symmetrically arranged on the upper and lower sides of the second core plate fixed on the second force transmission member, and the sum of the bearing forces of the first core plate is consistent with the bearing force of the second core plate.

[0017] According to the present application, the number of the first core plate on one plug-in part of the second core plate and the first force transmission member is one;

[0018] The thickness of the first core plate and the second core plate is consistent, and the sum of the widths of the two first core plates is consistent with the width of the second core plate.

[0019] According to the present application, a linkage assembly is further included;

[0020] The linkage assembly is connected with the first force transmission member and the second force transmission member;

[0021] The linkage assembly is used to drive the second force transmission member to move synchronously along the first direction toward a direction away from the first force transmission member when the first force transmission member bears the tension in the first direction and moves along the first direction toward a direction away from the second force transmission member; or,

[0022] The linkage assembly is used to drive the second force transmission member to synchronously move along the first direction toward the first force transmission member when the first force transmission member bears the pressure in the first direction and moves along the first direction toward the second force transmission member.

[0023] According to the present invention, the tension-compression conversion mechanism further includes a fixing member;

[0024] The fixing member is fixedly connected to the fixed restraining member; the fixing member defines a first socket and a second socket arranged vertically, the first socket and the second socket both being passed through along the first direction; the first force transmitting member and the second force transmitting member are both movably inserted into the first socket and the second socket along the first direction;

[0025] The linkage assembly includes a gear, a first rack and a second rack;

[0026] The fixed member is rotatably connected to the horizontally oriented gear;

[0027] The first rack extending along the first direction is fixed on the first force transmission member, and the second rack extending along the first direction is fixed on the second force transmission member; the first rack and the corresponding second rack are engaged with the upper and lower sides of the corresponding gear.

[0028] According to the present invention, a horizontally oriented connecting rod is fixed on the fixing member, and the gear is sleeved on the connecting rod and can rotate relative to the connecting rod;

[0029] The end of the connecting rod protrudes from the fixing member, and the end of the connecting rod is provided with an external thread;

[0030] The fixing restraint is provided with a connection hole for allowing the end of the connecting rod to extend out, and the end of the connecting rod extending out of the fixing restraint is threadedly connected with a nut capable of abutting against the fixing restraint.

[0031] According to the present invention, the longitudinal section of the fixing constraint is C-shaped, the fixing constraint extends along the first direction, the fixing constraint can be sleeved on both sides of the first core board and the second core board, and the open end of the fixing constraint is fixedly connected to the fixing member;

[0032] The two sleeve portions of the fixed restraint are connected to the pressing components, and the two pressing components are arranged opposite to each other and the ends thereof press against the horizontal sides of the first core board and the second core board to clamp the first core board and the second core board;

[0033] The pressing assemblies each include two groups of pressing members spaced apart along the first direction, and the distance between the two groups of pressing members is adjustable.

[0034] According to the present invention, each set of pressing members includes a row of restraining pins screwed onto the corresponding sleeve portions, with the axial direction of the restraining pins being horizontal. One row of the restraining pins corresponds to the first core board and the second core board, and the ends of the restraining pins are capable of pressing against the horizontal side of the corresponding first core board or the second core board. When the spacing between the two sets of pressing members along the first direction is adjusted, the effective length of the first core board and the second core board involved in bearing the load along the first direction can be changed, so that the peak load-bearing capacity of the first core board and the second core board along the first direction is changed without affecting the rigidity.

[0035] In a second aspect, the present invention further provides an application method, using a modular steel structure with adjustable load-bearing support, the application method comprising:

[0036] When the tension-compression conversion mechanism bears the tension in the first direction, it can drive the first core plate and the second core plate to move in opposite directions simultaneously along the first direction, so that the first core plate yields under tension and the second core plate buckles under compression;

[0037] When the tension-compression conversion mechanism bears the pressure in the first direction, it can drive the first core plate and the second core plate to move simultaneously in opposite directions along the first direction, so that the first core plate is compressed and bends and the second core plate is tensile and yields.

[0038] (3) Beneficial effects

[0039] The beneficial effects of the present invention are as follows: the modular steel structure load-bearing adjustable support of the present invention, when the tension-compression conversion mechanism is pulled under the action of an earthquake, the first core plate can be pulled into the yield stage, and the second core plate can be compressed and buckled. When the tension-compression conversion mechanism is compressed under the action of an earthquake, the first core plate can be compressed and buckled, and the second core plate can be pulled into the yield stage. Therefore, when the tension-compression conversion mechanism of the modular steel structure load-bearing adjustable support is pulled and compressed under the action of an earthquake, part of the core plates can enter the yield stage and dissipate the earthquake energy, effectively improving the material utilization rate of the core plates, which is beneficial to dissipating energy under the action of a large earthquake, and another part of the core plates can be compressed and buckled without continuing to bear the load, so that the overall load-bearing capacity of the modular steel structure load-bearing adjustable support is degraded, avoiding the instability of the extended connection section for connecting beams and columns, and avoiding increasing the force applied by the modular steel structure load-bearing adjustable support to the connected beams and columns, effectively reducing the impact on the connected beams and columns.

[0040] Furthermore, when the spacing between the two sets of top pressure members along the first direction is adjusted, the effective length of the first core plate and the second core plate participating in the load-bearing along the first direction can be changed, so that the peak load-bearing capacity of the first core plate and the second core plate along the first direction can be changed without affecting the stiffness. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of the assembly of the modular steel structure load-bearing adjustable support of the present invention;

[0042] Figure 2 for Figure 1 Schematic diagram of the decomposition;

[0043] Figure 3 for Figure 1 Schematic diagram of the tension-compression conversion mechanism;

[0044] Figure 4 for Figure 3 Schematic diagram of the decomposition;

[0045] Figure 5 Schematic diagram of the assembly of the tension-compression conversion mechanism, the first core plate and the second core plate;

[0046] Figure 6 It is a force diagram when the first force transmission member bears the tensile force;

[0047] Figure 7 It is a schematic diagram of the force when the first force transmission member bears pressure;

[0048] Figure 8 Schematic diagram of the layout of the first core board and the second core board.

[0049] [Description of Reference Numerals]

[0050] 1: The first core board;

[0051] 2: second core plate;

[0052] 3: tension-compression conversion mechanism; 31: fixing member; 311: first socket; 312: second socket; 32: first force transmission member; 33: second force transmission member;

[0053] 4: fixing constraint member;

[0054] 5: linkage assembly; 51: gear; 52: first rack; 53: second rack;

[0055] 6: connecting rod;

[0056] 7: nut;

[0057] 8: jacking assembly; 81: jacking member; 811: constraint spike;

[0058] A: first direction; D: thickness; E: width; F1: tension; F2: compression. DETAILED DESCRIPTION

[0059] In order to better explain the present application, so as to be understood, the present application is described in detail by specific embodiments in combination with the drawings. Wherein, the orientation mentioned in this paper such as "upper", "lower" and the like is referred to the orientation of the drawings. Figure 1 .

[0060] Referring to Figure 1-8 , the embodiment of the present application proposes a modular steel structure load-bearing adjustable support, which comprises a tension-compression conversion mechanism 3, a fixing constraint member 4, a first core plate 1 and a second core plate 2.

[0061] The tension-compression conversion mechanism 3 and the fixing constraint member 4 can be connected to adjacent columns and beams respectively. The first core plate 1 and the second core plate 2 both extend along the first direction A. The first end of the first core plate 1 and the second core plate 2 in the length direction is connected to the tension-compression conversion mechanism 3, and the second end of the first core plate 1 and the second core plate 2 in the length direction is fixedly connected to the fixing constraint member 4.

[0062] When the tension-compression conversion mechanism 3 is subjected to tension or compression, it can drive the first core plate 1 and the second core plate 2 to move in opposite directions along the first direction A, so that one of the first core plate 1 and the second core plate 2 is subjected to tension and the other is subjected to compression.

[0063] It should be noted that the tension-compression conversion mechanism 3 and the fixed constraint 4 are used to connect adjacent beams and columns respectively. Therefore, the tension-compression conversion mechanism 3 can bear the tension F1 and pressure F2 under the action of an earthquake. When the first core panel 1 and the second core panel 2 bear a force along the first direction A toward their first ends, the second ends of the first core panel 1 and the second core panel 2 move away from the fixed constraint 4 and bear the tension F1. When the first core panel 1 and the second core panel 2 bear a force along the first direction A toward their second ends, the second ends of the first core panel 1 and the second core panel 2 are squeezed onto the fixed constraint 4 and bear the pressure F2. Among them, the first direction A refers to the overall extension direction of the tension-compression conversion device.

[0064] Furthermore, when the support is under tension or compression, the tension-compression conversion mechanism 3 is correspondingly under tension or compression. The support method of the modular steel structure load-bearing adjustable support is as follows:

[0065] See also Figure 6 When the tension-compression conversion mechanism 3 bears the tension F1 in the first direction A under the action of an earthquake, it can drive the first core panel 1 and the second core panel 2 to move simultaneously in opposite directions along the first direction A: the first core panel 1 moves along the first direction A toward its first end, and the second core panel 2 moves along the first direction A toward its second end, so that the first core panel 1 yields under tension and the second core panel 2 buckles under compression.

[0066] See also Figure 7 When the tension-compression conversion mechanism 3 bears the pressure F2 in the first direction A under the action of an earthquake, it can drive the first core panel 1 and the second core panel 2 to move simultaneously in opposite directions along the first direction A: the first core panel 1 moves along the first direction A toward its second end, and the second core panel 2 moves along the second direction toward its first end, so that the first core panel 1 is compressed and buckled and the second core panel 2 is tensile and yielded.

[0067] Thus, the modular steel structure load-bearing adjustable support, when the tension-compression conversion mechanism 3 is pulled under the action of an earthquake, the first core plate 1 can be pulled into the yield stage, and the second core plate 2 can be compressed and buckled. When the tension-compression conversion mechanism 3 is compressed under the action of an earthquake, the first core plate 1 can be compressed and buckled, and the second core plate 2 can be pulled into the yield stage. Therefore, when the tension-compression conversion mechanism 3 of the modular steel structure load-bearing adjustable support is pulled and compressed under the action of an earthquake, part of the core plate can enter the yield stage and dissipate the earthquake energy, effectively improving the material utilization rate of the core plate, which is beneficial to dissipating energy under the action of a large earthquake, and another part of the core plate can be compressed and buckled without continuing to bear the load, so that the overall load-bearing capacity of the modular steel structure load-bearing adjustable support is degraded, avoiding the instability of the overhanging connection section used for the modular steel structure, and avoiding increasing the force applied by the modular steel structure load-bearing adjustable support to the connected beams and columns, effectively reducing the impact on the connected beams and columns.

[0068] See also Figure 3 and 4 Furthermore, the tension-compression conversion mechanism 3 includes a first force transmission member 32 and a second force transmission member 33 .

[0069] The first force transmission member 32 can be connected to a column or beam and bear the tensile force F1 and compressive force F2 under earthquake conditions. The first force transmission member 32 and the second force transmission member 33 can be connected simultaneously toward each other or away from each other along a first direction A. The first force transmission member 32 is fixedly connected to the first end of the first core panel 1, and the second force transmission member 33 is fixedly connected to the first end of the second core panel 2.

[0070] When the first force transmission member 32 is pulled or compressed, the first force transmission member 32 and the second force transmission member 33 can simultaneously move toward or away from each other along the first direction A to drive the first core board 1 and the second core board 2 to move in opposite directions along the first direction A.

[0071] Specifically, the longitudinal cross-sections of the first force transmission member 32 and the second force transmission member 33 are both C-shaped, the openings of the first force transmission member 32 and the second force transmission member 33 are opposite, the first force transmission member 32 is sleeved outside the second force transmission member 33, and the two can be connected to each other simultaneously along the first direction A, approaching each other or moving away from each other. The first core board 1 fixed to the two plug-in portions of the first force transmission member 32 is symmetrically arranged on the upper and lower sides of the second core board 2 fixed to the main body of the second force transmission member 33, and the sum of the bearing capacity of the first core board 1 is consistent with the bearing capacity of the second core board 2.

[0072] Therefore, when this modular steel structure's adjustable load-bearing support bears the tension F1 and pressure F2 under the action of an earthquake, the tensile bearing capacity of the first core panel 1 is symmetrical with the compressive bearing capacity of the second core panel 2, and the compressive bearing capacity of the first core panel 1 is symmetrical with the tensile bearing capacity of the second core panel 2, so that the force of the tension-compression conversion mechanism 3 is balanced.

[0073] Specifically, the first core board 1 and the second core board 2 are arranged as follows:

[0074] At least one and an equal number of first core boards 1 are fixedly connected to the two plug-in portions of the first force transmission member 32, and at least one second core board 2 is fixedly connected to the second force transmission member 33. The first core boards 1 fixed to the two plug-in portions of the first force transmission member 32 are symmetrically arranged above and below the second core board 2 fixed to the main body of the second force transmission member 33, and the sum of the bearing capacities of the first core boards 1 is consistent with the bearing capacity of the second core board 2.

[0075] When there are multiple first core boards 1 fixed on a plug-in portion, the multiple boards are arranged in parallel up and down and / or horizontally. When there are multiple second core boards 2, the multiple second core boards 2 are arranged in parallel up and down and / or horizontally.

[0076] Therefore, the modular steel structure load-bearing adjustable support can arrange the number and arrangement of the first core panel 1 and the second core panel 2 according to actual needs, ensuring that the load-bearing capacity of the modular steel structure load-bearing adjustable support under tension and compression is symmetrical, and the force of the tension-compression conversion mechanism 3 is balanced.

[0077] It should be noted that the fixed connection defined in this embodiment refers to a relatively fixed position during operation, at least without relative movement in the first direction A, rather than a non-detachable connection.

[0078] Preferably, see Figure 5 The number of first core boards 1 provided on each plug-in portion of the second core board 2 and the first force transmission member 32 is one. The two first core boards 1 fixed to the two plug-in portions of the first force transmission member 32 are symmetrically arranged on the upper and lower sides of the second core board 2 fixed to the second force transmission member 33 to simplify the structure and facilitate processing.

[0079] See also Figure 8 , the thickness D of the first core panel 1 and the second core panel 2 is consistent, and the sum of the width E of the two first core panels 1 is consistent with the width E of the second core panel 2, so that the sum of the stiffness of the two first core panels 1 is consistent with the stiffness of the second core panel 2, and the sum of the tensile force F1 borne by the two first core panels 1 is consistent with the pressure F2 borne by the second core panel 2, and the sum of the pressure F2 borne by the two first core panels 1 is consistent with the tensile force F1 borne by the second core panel 2, that is, to ensure that the tensile and compressive stiffness of the two core panels of the load-adjustable support of this modular steel structure are symmetrical, the tensile bearing capacity and compressive bearing capacity of the two core panels are symmetrical, and further the force of the tension-compression conversion mechanism 3 is balanced.

[0080] Optionally, the first and second ends of the first and second core plates 1 and 2 are welded to the fixing member 31 and the fixed constraint member 4 to facilitate processing.

[0081] Preferably, the first and second core plates 1 and 2 are steel plates.

[0082] Further, referring to Figure 3 and 4 , the modular steel structure load-bearing adjustable support further comprises a linkage assembly 5 for driving the first and second force transmission members 32 and 33 to simultaneously move towards each other or away from each other along the first direction A.

[0083] The linkage assembly 5 connects the first and second force transmission members 32 and 33.

[0084] The linkage assembly 5 is configured to drive the second force transmission member 33 to move along the first direction A away from the first force transmission member 32 simultaneously when the first force transmission member 32 bears a tensile force F1 along the first direction A and moves along the first direction A away from the second force transmission member 33; or,

[0085] The linkage assembly 5 is configured to drive the second force transmission member 33 to move along the first direction A towards the first force transmission member 32 simultaneously when the first force transmission member 32 bears a compressive force F2 along the first direction A and moves along the first direction A towards the second force transmission member 33.

[0086] Thus, the synchronization of the movement of the first and second force transmission members 32 and 33 can be ensured.

[0087] Further, the tensile-compressive conversion mechanism 3 further comprises a fixing member 31.

[0088] The fixing member 31 is fixedly connected to the fixed constraint member 4 to define the position of the fixing member 31. The fixing member 31 is provided with a first socket 311 and a second socket 312 arranged in an up-down manner, and the first and second sockets 311 and 312 are both through along the first direction A.

[0089] The first and second force transmission members 32 and 33 are movably inserted into the first and second sockets 311 and 312 along the first direction A to ensure the precision and stability of the approaching or moving away of the first and second force transmission members 32 and 33, and to ensure the precision and stability of the opposite movement of the first and second core plates 1 and 2 along the first direction A.

[0090] The linkage assembly 5 comprises a gear 51, a first rack 52 and a second rack 53.

[0091] The fixing member 31 is rotationally connected to the horizontally oriented gear 51.

[0092] A first rack 52 extending in the first direction A is fixed to the first force transmission member 32 , and a second rack 53 extending in the first direction A is fixed to the second force transmission member 33 . The first rack 52 and the corresponding second rack 53 are meshed with the upper and lower sides of the corresponding gear 51 .

[0093] During use, when the first force transmission member 32 bears the pulling force F1 in the first direction A, the first force transmission member 32 drives the first rack 52 and the first core board 1 to move synchronously in the direction away from the second force transmission member 33, so that the first core board 1 is pulled. At the same time, the first rack 52 drives the gear 51 to rotate, and the gear 51 drives the second rack 53 fixed on the second force transmission member 33, the second force transmission member 33 and the second core board 2 to move synchronously in the direction away from the first force transmission member 32, so that the second core board 2 is compressed.

[0094] When the first force transmission member 32 bears the pressure F2 in the first direction A, the first force transmission member 32 drives the first rack 52 and the first core plate 1 to move synchronously toward the direction close to the second force transmission member 33, so that the first core plate 1 is compressed. At the same time, the first rack 52 drives the gear 51 to rotate, and the gear 51 drives the second rack 53 fixed on the second force transmission member 33, the second force transmission member 33 and the second core plate 2 to move synchronously toward the direction close to the first force transmission member 32, so that the second core plate 2 is pulled.

[0095] Therefore, the linkage assembly 5 can conveniently and accurately drive the two first force transmission members 32 and the second force transmission members 33 to move closer to or away from each other simultaneously along the first direction A relative to the fixing member 31 .

[0096] Preferably, when the first force transmission member 32 and the second force transmission member 33 are both inserted into the first socket 311 and the second socket 312 so as to be movable along the first direction A:

[0097] Two gear groups arranged vertically are provided on the fixing member 31 , each group includes at least one gear 51 . When a plurality of gears 51 are provided in each group, the plurality of gears 51 are arranged horizontally and spaced apart.

[0098] First racks 52 are provided on opposite sides of the two connecting portions of the first force transmission member 32, and second racks 53 are provided on opposite sides of the two connecting portions of the second force transmission member 33. The two gear sets, the first racks 52 on the two connecting portions of the first force transmission plate, and the second racks 53 on the two connecting portions of the second force transmission member 33, correspond one to one. The first racks 52 and corresponding second racks 53 mesh with the upper and lower sides of the corresponding gears 51 to improve the stability and accuracy of the movement of the first and second force transmission members 32, 33 when they are simultaneously approaching or moving away from each other along the first direction A relative to the fixed member 31.

[0099] Furthermore, in order to facilitate the connection between the gear 51 and the fixing member 31 and the connection between the fixing constraint member 4 and the fixing member 31:

[0100] A horizontally oriented connecting rod 6 is fixed to the fixing member 31. A gear 51 is sleeved on the connecting rod 6 and can rotate relative to the connecting rod 6. The end of the connecting rod 6 protrudes from the fixing member 31 and is externally threaded. The fixing constraint 4 defines a connection hole for the end of the connecting rod 6 to extend out. The end of the connecting rod 6 extending from the fixing constraint 4 is threadedly engaged with a nut 7 that abuts against the fixing constraint 4.

[0101] Thus, the gear 51 and the fixed constraint member 4 are both connected to the fixed member 31 through the connecting rod 6, so as to simplify the connection structure and facilitate assembly.

[0102] Optionally, the connecting rod 6 is welded to the fixing member 31 .

[0103] Furthermore, in order to adjust the load-bearing peaks of the first core plate 1 and the second core plate 2, the load-bearing adjustable support of the modular steel structure also has the following settings:

[0104] The longitudinal section of the fixed restraint 4 is C-shaped. The fixed restraint 4 extends along the first direction A. The fixed restraint 4 can be mounted on both horizontal sides of the first core board 1 and the second core board 2 , and the open end of the fixed restraint 4 is fixedly connected to the fixing member 31 .

[0105] The two sleeve parts of the fixed restraint 4 are connected to opposite pressing components 8. The two pressing components 8 are arranged opposite to each other and the ends are pressed on the horizontal sides of the first core board 1 and the second core board 2 to clamp the first core board 1 and the second core board 2 and constrain the deformation ability of the two, so that the first core board 1 and the second core board 2 have the required bearing capacity.

[0106] The pressing assembly 8 includes two groups of pressing members 81 spaced apart along the first direction A. The distance between the two groups of pressing members 81 is adjustable.

[0107] During processing, the effective length L of the first core panel 1 and the second core panel 2 participating in the load-bearing along the first direction A can be changed by adjusting the spacing between the two groups of top pressure members 81 along the first direction A and changing the spacing between the two groups of top pressure members 81 pressing on the first core panel 1 and the second core panel 2. Referring to the following formula, the effective length L is inversely proportional to the peak load-bearing value F of the core panel. Therefore, by adjusting the spacing between the two groups of top pressure members 81, the peak load-bearing value of the first core panel 1 and the second core panel 2 along the first direction A that meets the needs can be conveniently adjusted and obtained at the same time, thereby realizing the auxiliary support function of the modular steel structure load-bearing adjustable support for the building structure under normal use conditions other than earthquakes before and after the support load-bearing degradation.

[0108]

[0109] Where, E is the elastic modulus. I is the moment of inertia of the core plate in the direction of thickness D. L is the distance between the two sets of top pressing members 81. α is the effective length coefficient when the two sets of top pressing members 81 are constrained.

[0110] It should be noted that the traditional way to adjust the peak load-bearing capacity of the core panel is to change the core panel's own properties such as material, shape or size to change the core panel's stiffness, and then change the peak load-bearing capacity that is positively correlated with the stiffness. Therefore, when it is necessary to increase the peak load-bearing capacity of the core panel, it is also necessary to increase the stiffness of the core panel accordingly, and the increase in the stiffness of the core panel will limit its tensile deformation capacity, and thus limit its yield capacity. However, when adjusting the peak load-bearing capacity of the core panel, the present modular steel structure's adjustable load-bearing support does not change the core panel's own properties, and thus will not change the stiffness, thereby achieving independent regulation of the peak load-bearing capacity. Therefore, the present modular steel structure's adjustable load-bearing support can independently change the peak load-bearing capacity of the first core panel 1 and the second core panel 2 without changing the stiffness of the two, thereby ensuring the stiffness of the core panel, effectively achieving a full hysteresis curve, and ensuring the auxiliary support function of the core panel to the building structure under normal use conditions of non-earthquake conditions before and after the degradation of the tensile and compressive bearing capacity.

[0111] Specifically, each group of pressing parts 81 includes a row of constraint pins 811 screwed on the corresponding socket parts, the axial direction of the constraint pins 811 is horizontal, and a row of constraint pins 811 corresponds to the first core board 1 and the second core board 2. The end of the constraint pin 811 can be pressed on the horizontal side of the corresponding first core board 1 or the second core board 2 to stably clamp the first core board 1 and the second core board 2.

[0112] Preferably, the material of the restraining pin 811 is steel to ensure the pressing ability.

[0113] Specifically, the connection method between the fixing restraint member 4 with a C-shaped longitudinal section and the fixing member 31 is as follows:

[0114] The ends of the connecting rod 6 protrude from the fixing member 31 and are externally threaded. The open end of the fixed constraint 4 is sleeved on both sides of the fixing member 31. Both sides of the open end of the fixing constraint 4 have connection holes for the ends of the connecting rod 6 to extend out. The ends of the connecting rod 6 that extend from the fixing constraint 4 are threadedly connected to nuts 7 that can abut against the fixing constraint 4, thereby stably fixing the fixing constraint 4 to the fixing member 31.

[0115] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, removable connections, or integration. They may refer to mechanical connections or electrical connections. They may refer to direct connections or indirect connections through an intermediary. They may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0116] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0117] In the description of this specification, the terms "one embodiment", "some embodiments", "embodiments", "examples", "specific examples" or "some examples" refer to the specific features, structures, materials or characteristics described in conjunction with the embodiment or example and included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and features of different embodiments or examples, unless they are mutually inconsistent.

[0118] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A modular steel structure with adjustable load-bearing support, characterized in that: It comprises a tension-compression conversion mechanism (3), a fixed constraint member (4), a first core plate (1) and a second core plate (2); The tension-compression conversion mechanism (3) and the fixed constraint member (4) are capable of connecting adjacent columns and beams respectively; The first core plate (1) and the second core plate (2) both extend in a first direction (A); first ends of the first core plate (1) and the second core plate (2) in a lengthwise direction are both connected to the tension-compression conversion mechanism (3); second ends of the first core plate (1) and the second core plate (2) in a lengthwise direction are both fixedly connected to the fixed constraint member (4); When the tension-compression conversion mechanism (3) is subjected to tension or compression, it can drive the first core board (1) and the second core board (2) to move in opposite directions along the first direction (A), so that one of the first core board (1) and the second core board (2) is subjected to tension and the other is subjected to compression.

2. The modular steel structure load-bearing adjustable support according to claim 1, characterized in that: The tension-compression conversion mechanism (3) comprises a first force transmission member (32) and a second force transmission member (33); The first force transmission member (32) can be connected to a column or a beam; the first force transmission member (32) and the second force transmission member (33) can be connected simultaneously along the first direction (A) so as to be close to each other or far away from each other; the first force transmission member (32) is fixedly connected to the first end of the first core plate (1), and the second force transmission member (33) is fixedly connected to the first end of the second core plate (2); When the first force transmission member (32) is pulled or compressed, the first force transmission member (32) and the second force transmission member (33) can simultaneously move toward or away from each other along the first direction (A), so as to drive the first core plate (1) and the second core plate (2) to move in opposite directions along the first direction (A).

3. The modular steel structure load-bearing adjustable support according to claim 2, characterized in that: The longitudinal sections of the first force transmission member (32) and the second force transmission member (33) are both C-shaped; the openings of the first force transmission member (32) and the second force transmission member (33) are opposite to each other; the first force transmission member (32) is sleeved outside the second force transmission member (33) and the two can be connected to each other in the first direction (A) at the same time, approaching each other or moving away from each other; The first core board (1) fixed on the two plug-in parts of the first force transmission member (32) is symmetrically arranged on the upper and lower sides of the second core board (2) fixed on the second force transmission member (33), and the sum of the bearing capacities of the first core board (1) is consistent with the bearing capacity of the second core board (2).

4. The modular steel structure load-bearing adjustable support according to claim 3, characterized in that: The number of the second core board (2) and the first core board (1) provided on a plug-in portion of the first force transmission member (32) is both one; The thickness (D) of the first core board (1) and the second core board (2) are consistent, and the sum of the widths (E) of the two first core boards (1) is consistent with the width (E) of the second core board (2).

5. The modular steel structure load-bearing adjustable support according to any one of claim 3, characterized in that: Also included is a linkage component (5); The linkage assembly (5) connects the first force transmission member (32) and the second force transmission member (33); The linkage assembly (5) is used to drive the second force transmission member (33) to synchronously move along the first direction (A) toward a direction away from the first force transmission member (32) when the first force transmission member (32) bears the pulling force (F1) in the first direction (A) and moves along the first direction (A) toward a direction away from the second force transmission member (33); or, The linkage assembly (5) is used to drive the second force transmission member (33) to synchronously move along the first direction (A) toward the direction close to the first force transmission member (32) when the first force transmission member (32) bears the pressure (F2) in the first direction (A) and moves along the first direction (A) toward the direction close to the second force transmission member (33).

6. The modular steel structure load-bearing adjustable support according to claim 5, characterized in that: The tension-compression conversion mechanism (3) further includes a fixing member (31); The fixing member (31) is fixedly connected to the fixed restraining member (4); the fixing member (31) is provided with a first socket (311) and a second socket (312) arranged in an upper and lower manner, and the first socket (311) and the second socket (312) are both passed through along the first direction (A); the first force transmission member (32) and the second force transmission member (33) are both inserted into the first socket (311) and the second socket (312) in a manner that they can be moved along the first direction (A); The linkage assembly (5) comprises a gear (51), a first rack (52) and a second rack (53); The fixing member (31) is rotatably connected to the horizontally oriented gear (51); The first rack (52) extending along the first direction (A) is fixed on the first force transmission member (32), and the second rack (53) extending along the first direction (A) is fixed on the second force transmission member (33); the first rack (52) and the corresponding second rack (53) are engaged with the upper and lower sides of the corresponding gear (51).

7. The modular steel structure load-bearing adjustable support according to claim 6, characterized in that: A horizontally oriented connecting rod (6) is fixed on the fixing member (31), and the gear (51) is sleeved on the connecting rod (6) and can rotate relative to the connecting rod (6); The end of the connecting rod (6) protrudes from the fixing member (31), and the end of the connecting rod (6) is provided with an external thread; The fixed restraint (4) is provided with a connection hole for allowing the end of the connecting rod (6) to extend out, and the end of the connecting rod (6) extending out of the fixed restraint (4) is threadedly connected to a nut (7) that can abut against the fixed restraint (4).

8. The modular steel structure load-bearing adjustable support according to claim 6, characterized in that: The longitudinal section of the fixed restraint member (4) is C-shaped, the fixed restraint member (4) extends along the first direction (A), the fixed restraint member (4) can be sleeved on both sides of the first core board (1) and the second core board (2), and the open end of the fixed restraint member (4) is fixedly connected to the fixing member (31); The two sleeve portions of the fixed restraining member (4) are both connected to a pressing assembly (8), and the two pressing assemblies (8) are arranged opposite to each other and their ends press against the horizontal sides of the first core board (1) and the second core board (2) to clamp the first core board (1) and the second core board (2); The pressing assemblies (8) each comprise two groups of pressing members (81) spaced apart along the first direction (A), and the spacing between the two groups of pressing members (81) is adjustable.

9. The modular steel structure load-bearing adjustable support according to claim 8, characterized in that: Each group of the pressing members (81) comprises a row of constraint pins (811) screwed onto the corresponding sleeve portions, wherein the axial direction of the constraint pins (811) is horizontal, and a row of the constraint pins (811) corresponds to the first core plate (1) and the second core plate (2), and the ends of the constraint pins (811) can press against the horizontal side of the corresponding first core plate (1) or the second core plate (2).

10. An application method of the modular steel structure load-bearing adjustable support according to any one of claims 1 to 9, characterized in that: include: When the tension-compression conversion mechanism (3) bears the tension (F1) in the first direction (A), it can drive the first core plate (1) and the second core plate (2) to move simultaneously in opposite directions along the first direction (A), so that the first core plate (1) yields under tension and the second core plate (2) buckles under compression; When the tension-compression conversion mechanism (3) bears the pressure (F2) in the first direction (A), it can drive the first core plate (1) and the second core plate (2) to move simultaneously in opposite directions along the first direction (A), so that the first core plate (1) is compressed and buckled, and the second core plate (2) is tensile and yielded.

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