A functionally restorable assembled multi-limb L-shaped special-shaped column and an assembly method thereof

Abstract

The present invention provides an assembled multi-limb L-shaped special-shaped column with recoverable functions and an assembly method thereof. The L-shaped supporting surface comprises three groups of supporting frames and three groups of bearing steel structures correspondingly arranged on the supporting frames, and the outside of the bearing steel structures are all wrapped with bearing rubber plates. The core column can cooperate with the bearing steel structure to transfer the load to the corbel. During the process, the local area of ​​the bearing rubber plate located on the upper part of the corbel will produce elastic compression deformation, so that the top plate and the bearing plate are relatively displaced. A plurality of dampers are arranged between the bearing plate and the detachable top plate to ensure that the damper consumes a large amount of seismic energy when the core column and the bearing plate are relatively displaced. The L-shaped special-shaped column arranged in the present structure is suitable for the corners of buildings. The strong structural stability makes the L-shaped special-shaped column have sufficient anti-torsion ability, and at the same time can also meet the function of replacing the damper, thereby extending the service life of the present structure. The L-shaped special-shaped column of the present application can self-reset under the action of small or medium earthquakes. After the action of a large earthquake, it only needs to adjust the positions of the components and replace the dampers to quickly restore the structural function.

Description

Technical Field

[0001] The invention relates to the field of structural technology, and in particular to an assembled multi-limb L-shaped special-shaped column with restorable functions and an assembly method thereof. Background Art

[0002] Structural columns bear the main vertical force in an earthquake. If they are damaged by a large earthquake at the epicenter, they will need repair and reinforcement at best, or the building will lose its safety capacity at worst. The structural columns at the corners of existing buildings have a small moment of inertia, which makes the corner structural columns weak in torsion resistance. In order to reduce the torsion phenomenon, the method of increasing the cross-sectional area is usually adopted, but this method will significantly affect the usable space of the building. Therefore, special-shaped columns can also be used to bear the upper load according to the structural layout. The restorable function is a new type of structural function. Structures with restorable functions can be simply repaired after a small earthquake and replaced in time after a large earthquake to quickly restore the structural function. However, there are currently few patented technologies in my country in the direction of restorable special-shaped columns.

[0003] The existing technology discloses a multi-limb L-shaped special-shaped column with a built-in core column and a restorable function and an assembly method thereof. This technical solution is to arrange a central side column and multiple side columns on the outer walls of a bidirectional core column and two unidirectional core columns distributed in an L shape, and then connect steel beams and replaceable components between the side columns and between the side columns and the central side columns to form a structural column. However, in this solution, there are many variable-section parts of the side columns, and there are arc-shaped areas, and the concrete material has great brittleness, so the construction of the side columns in this technical solution is difficult, and during an earthquake, the core column and the side column are easily squeezed against each other, resulting in partial areas being crushed, thereby causing component damage. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a restorable assembled multi-limb L-shaped special-shaped column and an assembly method thereof, which provides stable support for the corner area of ​​a building and has a restorable function, and no crushing damage will occur between the components.

[0005] The present invention is achieved through the following technical solutions:

[0006] A functionally restorable assembled multi-limb L-shaped column, characterized in that the L-shaped column comprises a plurality of limbs arranged vertically, and the plurality of limbs are arranged at intervals along the height direction by a multi-level L-shaped support surface, and the L-shaped support surface comprises three groups of support frames and three groups of bearing steel structures;

[0007] The support frame comprises a corbel, which is arranged on adjacent side walls of the limb column, and a corbel connecting beam is connected between adjacent corbels; the adjacent support frames share the same limb column;

[0008] The three groups of bearing steel structures are respectively arranged in the three groups of support frames, and the outside of the bearing steel structures is wrapped with bearing rubber plates, and the bottom of the bearing rubber plates is arranged on the support frames; the bearing steel structures include square steel pipes, and two groups of steel brackets are arranged horizontally and vertically in the middle of the outer wall of the square steel pipe, and the free ends of the two groups of steel brackets on the same outer wall of the square steel pipe are respectively located above two adjacent brackets of the same limb column;

[0009] A transverse steel structure is connected between a plurality of limbs at the lower side of the final L-shaped support surface, and a bearing plate is fixedly arranged on the upper side of the transverse steel structure;

[0010] The bearing steel structure and the center of the bearing plate of each level of the L-shaped support surface are respectively cast with core columns in the vertical direction;

[0011] The bottom of the core column is detachably provided with a top plate;

[0012] A plurality of dampers are detachably arranged between the force-bearing plate and the top plate.

[0013] Furthermore, a gap is set between the force-bearing rubber plates on each level of the L-shaped support surface.

[0014] Furthermore, a bearing column head is provided on the top of each core column.

[0015] Further, the bearing column head of the core column located in the middle of the L-shaped support surface includes an X-direction connection groove and a Y-direction connection groove connected horizontally and vertically;

[0016] One end of the bearing column head of the core column located on both sides of the L-shaped supporting surface is an X-direction connecting groove, and the other end is a Y-direction connecting groove.

[0017] Furthermore, a shear member is provided on the inner wall of the square steel tube.

[0018] Furthermore, both ends of the square steel pipe are fixedly connected with variable-section steel pipes, and the inner wall of the variable-section steel pipe is provided with a shear member.

[0019] Furthermore, the cross-section of the variable-section steel pipe is small near the two ends of the square steel pipe, and is large away from the two ends of the square steel pipe.

[0020] Furthermore, the bearing rubber plate has a thickness equal to the height of the bearing steel structure, and a width equal to the width of the bearing steel structure.

[0021] A method for assembling a functionally restorable assembled multi-limb L-shaped special-shaped column, comprising the following steps:

[0022] S1: Prepare the bearing steel structure in advance, and use the formwork to cast rubber to the outside of the bearing steel structure to form a bearing rubber plate;

[0023] S2: fix all limbs in the predetermined position;

[0024] S3: The transverse steel structure is fixedly connected between the multiple limbs on the lower side of the final L-shaped support surface according to the preset position, and three bearing plates are fixedly arranged on them respectively;

[0025] S4: Connect the corbel connecting beams between the corbels on the limb columns from bottom to top in sequence according to the preset positions to form a support frame, then place the bearing rubber plate in the preset positions, and weakly connect the bearing rubber plate and the corbel to form a multi-level L-shaped support surface;

[0026] S5: The bearing steel structure and the center of the bearing plate of each level of the L-shaped support surface are cast through the vertical direction to form a core column and a bearing column head. During casting, embedded parts for the removable top plate are embedded at the bottom of the core column;

[0027] S6: Connect the top plate to the bottom of the core column;

[0028] S7: Use mechanical equipment to apply a vertical upward support force to the top plate so that the top of the bearing column head is lifted to a predetermined elevation;

[0029] S8: Cast the beam in the X-direction connection groove and the Y-direction connection groove, and reserve part of the stress-bearing steel bars, anchor steel bars and the reserved protective layer thickness of the steel bars without casting;

[0030] S9: Install a damper between the bearing plate and the top plate;

[0031] S10: dismantle the mechanical equipment in S7;

[0032] S11: Cast the load-bearing steel bars, anchor steel bars and reserved protective layer of the steel bars on the upper part of the S8 middle beam to form a functionally restorable assembled multi-limb L-shaped special-shaped column.

[0033] Compared with the prior art, the present invention has the following beneficial technical effects:

[0034] The present invention provides a restorable assembled multi-limb L-shaped special-shaped column and an assembly method thereof, wherein the L-shaped support surface comprises three groups of support frames and three groups of force-bearing steel structures correspondingly arranged on the support frames, and the outsides of the force-bearing steel structures are wrapped with force-bearing rubber plates, and the core column can cooperate with the force-bearing steel structure to transfer the load to the corbel, and during the process, the local area of ​​the force-bearing rubber plate located on the upper part of the corbel will produce elastic compression deformation, so that the top plate and the force-bearing plate are relatively displaced; a plurality of dampers are arranged between the force-bearing plate and the detachable top plate, so as to ensure that the damper consumes a large amount of seismic energy when the core column and the force-bearing plate are relatively displaced; The L-shaped column provided in the present structure is suitable for the corners of buildings. The strong structural stability enables the L-shaped column to have sufficient anti-torsion ability. At the same time, it can also meet the function of replacing the damper, extending the service life of the present structure. The L-shaped column of the present application can be self-reset under the action of a small or medium earthquake. After a large earthquake, it is only necessary to adjust the position of each component and replace the damper to quickly restore the structural function; at the same time, the two end faces of the L-shaped column are usually built with brick walls. If the structure is damaged in an earthquake, it is necessary to remove the brick walls at both ends of the L-shaped column to completely inspect and reinforce the structure. The L-shaped column of the present invention is a lattice structure. The L-shaped column is composed of multiple limbs. If the column needs to be inspected, it is only necessary to inspect or adjust the position of the components from the gap between the exposed limbs to the inside, and it is not necessary to remove the brick walls on the two end faces of the L-shaped column. When using the L-shaped column of the present application, it is possible to choose whether to block the exposed area in the thickness direction of the two limbs of the L-shaped column.

[0035] Furthermore, the gaps between the force-bearing rubber plates on each level of the L-shaped support surface are set so that the force-bearing rubber plates have a certain deformation space when deformed by the extrusion force, thereby achieving the overall stability of the structure.

[0036] The present invention provides a method for assembling a functionally restorable assembled multi-limb L-shaped special-shaped column. In the method, a formwork casting method is adopted to wrap a bearing rubber plate around the outside of a bearing steel structure. The method can be widely used in industrial production. At the same time, the method has simple steps and is highly feasible. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of a functionally restorable assembled multi-limb L-shaped special-shaped column in a specific embodiment of the present invention;

[0038] Figure 2 It is a side view of a functionally restorable assembled multi-limb L-shaped special-shaped column in a specific embodiment of the present invention;

[0039] Figure 3 It is a cross-sectional view of a functionally restorable assembled multi-limb L-shaped special-shaped column in a specific embodiment of the present invention;

[0040] Figure 4It is a bottom cross-sectional view of a functionally restorable assembled multi-limb L-shaped special-shaped column in a specific embodiment of the present invention;

[0041] Figure 5 It is a structural schematic diagram of an L-shaped supporting surface, a force-bearing steel structure and a force-bearing rubber plate in a specific embodiment of the present invention;

[0042] Figure 6 It is a schematic diagram of the bearing steel structure in a specific embodiment of the present invention;

[0043] Figure 7 It is a schematic diagram of adding a variable-section steel pipe to a bearing steel structure in a specific embodiment of the present invention;

[0044] Figure 8 It is a side view of a bearing steel structure equipped with a variable-section steel pipe in a specific embodiment of the present invention;

[0045] Fig. 9 It is a structural schematic diagram of a force-bearing plate in a specific embodiment of the present invention;

[0046] Fig.10 It is a structural schematic diagram of a limb column in a specific embodiment of the invention.

[0047] In the figure: limb column 10, transverse steel structure 11, bearing steel structure 2, square steel tube 20, shear member 201, variable cross-section steel tube 202, steel corbel 21, bearing rubber plate 3, corbel 30, corbel connecting beam 31, bearing column head 4, X-direction connecting groove 40, Y-direction connecting groove 41, bearing plate 5, through hole 50, core column 6, top plate 60, damper 7. DETAILED DESCRIPTION

[0048] The present invention is further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0049] The present invention provides a functionally restorable assembled multi-limb L-shaped special-shaped column, such as Figure 1 , Figure 2 and Figure 3 As shown, the L-shaped column is formed by a plurality of limb columns 10 arranged vertically, and the plurality of limb columns 10 are provided with multiple levels of L-shaped support surfaces at intervals along the height direction, and the L-shaped support surface includes three groups of support frames and three groups of bearing steel structures 2;

[0050] The support frame includes a corbel 30, which is arranged on the adjacent side wall of the limb column 10. The corbel 30 and the limb column 10 are integrally cast in the factory. A corbel connecting beam 31 is connected between adjacent corbels 30. The corbel connecting beam 31 and the corbel 30 are detachably connected by embedded parts. The adjacent support frames share the same limb column 10. Figure 5 As shown;

[0051] Further, such as Fig.10As shown, the side wall of the limb column 10 provided with the corbel 30 is arranged according to the positional relationship between the limb column 10 and other limb columns 10. If there is a side wall of another limb column 10 on the opposite side of the side wall, the side wall of this limb column 10 and the side wall of the other limb column 10 are provided with the corbel 30 at the same height.

[0052] The three groups of bearing steel structures 2 are respectively arranged in the three groups of support frames, and the outside of the bearing steel structures 2 is wrapped with bearing rubber plates 3, and the bottom of the bearing rubber plates 3 is arranged on the brackets 30. Specifically, Figure 5 As shown, the bearing rubber plate 3 has a certain elasticity, and can produce elastic compression deformation when the core column 6 drives the bearing steel structure 2 to produce a downward displacement trend;

[0053] The bearing steel structure 2 comprises a square steel tube 20, and two sets of steel brackets 21 are arranged horizontally and vertically in the middle of the outer wall of the square steel tube 20, and the free ends of the two sets of steel brackets 21 on the same outer wall of the square steel tube 20 are respectively located above two adjacent brackets 30 of the same limb column 10;

[0054] Specifically, Figure 5 As shown, the extension direction of the steel corbel 21 is arranged parallel to the diagonal of the limb column 10, and the corbel 30 can provide a large supporting force to bear the load transmitted from the bearing steel structure 2, and can cooperate with the bearing steel structure 2 to make the bearing rubber plate 3 produce elastic extrusion deformation.

[0055] like Figure 4 As shown, a transverse steel structure 11 is connected between the multiple limbs 10 on the lower side of the final L-shaped support surface, a bearing plate 5 is arranged on the upper side of the transverse steel structure 11, the bearing plate 5 and the transverse steel structure 11 are fixedly connected by embedded parts, the transverse steel structure 11 adopts I-shaped steel, and the transverse steel structure 11 and the limbs 10 are detachably connected by embedded parts; specifically, as Fig. 9 As shown, a rectangular through hole 50 is provided in the middle of the bearing plate 5, and the through hole 50 is reserved for use when casting the core column 6. The cross section of the core column 6 is smaller than the through hole 50, and the through hole 50 is coaxially arranged with the square steel pipe 20;

[0056] Furthermore, when a variable-section steel tube 202 is provided at the end of the square steel tube 20, the through hole 50 of the force plate 5 should be slightly larger than the cross section surrounded by the maximum outer diameter of the variable-section steel tube 202, to ensure that the core column 6 at the corresponding position of the square steel tube 20 can pass through the through hole 50 of the force plate 5;

[0057] Furthermore, a certain distance is set between the top of the force plate 5 and the nearest corbel 30, so as to ensure that there is no structural collision between the force plate 5 and the corbel 30 and facilitate the installation and construction of the force plate 5;

[0058] The center of the bearing steel structure 2 and the bearing plate 5 of each level of the L-shaped support surface is respectively cast with a core column 6 in the vertical direction. Specifically, the core column 6 is a cast-in-place reinforced concrete structure, and the core column 6 is provided through the through hole 50. Further, a certain gap is left between the core column 6 and the through hole 50 to achieve relative movement of the core column 6 in the vertical direction.

[0059] The bottom of the core column 6 is detachably provided with a top plate 60. Specifically, the top plate 60 and the core column 6 are detachably connected by embedded parts.

[0060] A plurality of dampers 7 are detachably provided between the force bearing plate 5 and the top plate 60. Specifically, the top plate 60 and the bottom of the force bearing plate 5 form a limiting structure for both ends of the damper 7. Furthermore, the plurality of dampers 7 between the force bearing plate 5 and the top plate 60 can meet the vertical relative displacement of the structure, ensuring that the damper 7 can dissipate a large amount of seismic energy when the core column 6 and the force bearing plate 5 are relatively displaced. At the same time, the top plate 60 and the core column 6 are detachably connected through the embedded plate, which is convenient for the later replacement of the damper 7.

[0061] A preferred embodiment provided by the present invention is that a gap is set between the force-bearing rubber plates 3 on each level of the L-shaped support surface, so that the force-bearing rubber plates 3 have a certain deformation space when deformed by the extrusion force, thereby achieving the overall stability of the structure.

[0062] Another preferred embodiment provided by the present invention is that a bearing column head 4 is provided on the top of the core column 6; specifically, the bearing column head 4 of the core column 6 on the support frame located in the middle of the L-shaped support surface is provided with an X-direction connection groove 40 and a Y-direction connection groove 41 connected horizontally and vertically;

[0063] The support frame is located on both sides of the L-shaped support surface. The bearing column head 4 of the core column 6 thereon has an X-direction connection groove 40 at one end and a Y-direction connection groove 41 at the other end. The bearing column head 4 is used to connect the beam.

[0064] Another preferred embodiment provided by the present invention is as follows: Figure 6As shown, the bearing steel structure 2 includes a square steel tube 20, and a steel bracket 21 is horizontally and vertically arranged in the middle of the outer wall of the square steel tube 20. Specifically, each outer wall of the square steel tube 20 is provided with two groups of steel brackets 21. Specifically, the lower flange of the steel bracket 21 is parallel to the horizontal plane, and the upper flange forms a certain angle with the horizontal plane. In addition, the cross section of the web in the steel bracket 21 gradually increases as it approaches the square steel tube 20 from the side away from the square steel tube 20. The steel bracket 21 can make The load of the core column 6 is transferred to the bearing rubber plate 3 through the steel corbel 21, so that the bearing rubber plate 3 can produce elastic compression deformation, that is, the steel corbel 21 can make the load of the core column 6 finally transferred to the corbel 30; further, the inner wall of the square steel tube 20 is provided with a shear member 201, and the shear member 201 is used to prevent the core column 6 and the square steel tube 2 from relative displacement along the column height direction, so that the core column 6 can be deformed together with the bearing steel structure 2 and the bearing rubber plate 3 under stress;

[0065] Further, if Figure 7 and Figure 8 As shown, the two ends of the square steel tube 20 are fixedly connected with variable-section steel tubes 202, and the inner wall of the variable-section steel tube 202 is provided with shear members 201; specifically, the angle between the hypotenuse of the variable-section steel tube 202 and the height direction of the structure of the present application is smaller than the friction angle. Since the core column 6 is formed by casting concrete, the shape of the core column 6 is the same as the shape of the variable-section steel tube 202 and the inside of the square steel tube 20, which can further strengthen the force integrity between the core column 6 and the bearing steel structure 2.

[0066] Another preferred embodiment provided by the present invention is that the thickness of the bearing rubber plate 3 is equal to the height of the bearing steel structure 2, and the width is equal to the width of the bearing steel structure 2, so that the bearing steel structure 2 can be completely wrapped in the bearing rubber plate 3, ensuring that the load of the core column 6 can be fully transferred to the bearing rubber plate 3.

[0067] The energy dissipation principle of the damper 7 in the present application is as follows: after the core column 6 is cast, it will rely on the shear member 201 or the shear member 201 and the variable-section steel pipe 202 to form a whole with the bearing steel structure 2, and the load on the core column 6 will be transmitted to the bearing rubber plate 3 through the steel bracket 21. The multi-layered bearing rubber plate 3 will produce elastic compression deformation. At this time, the core column 6 and the bearing plate 5 will have a relative vertical displacement, and the relative displacement between the top plate 60 and the bearing plate 5 will also increase, so that the damper 7 will produce an earthquake energy dissipation effect.

[0068] The present invention provides a method for assembling a multi-limb L-shaped special-shaped column with restorable functions, which comprises the following steps:

[0069] S1: Pre-prepare a bearing steel structure 2, and use a formwork to cast rubber onto the outside of the bearing steel structure 2 to form a bearing rubber plate 3;

[0070] S2: Fix all limbs 10 at a predetermined position;

[0071] S3: The transverse steel structure 11 is fixedly connected between the plurality of limbs 10 on the lower side of the final L-shaped support surface according to the preset positions, and three bearing plates 5 are fixedly arranged thereon respectively;

[0072] S4: Connect the corbel connecting beams 31 between the corbels 30 on the limb column 10 from bottom to top in sequence according to the preset positions to form a support frame, then place the force-bearing rubber plate 3 according to the preset position, and weakly connect the force-bearing rubber plate 3 and the corbel 30 to form a multi-level L-shaped support surface;

[0073] S5: The center of the bearing steel structure 2 and the bearing plate 5 of each level of the L-shaped support surface is cast through the vertical direction to form a core column 6 and a bearing column head 4. During the casting, an embedded part for a removable top plate 60 is embedded at the bottom of the core column 6;

[0074] S6: Connect the top plate 60 to the bottom of the core column 6;

[0075] S7: using mechanical equipment to apply a vertical upward support force to the top plate 60 so that the top of the bearing column head 4 is lifted to a predetermined elevation;

[0076] S8: Casting beams in the X-direction connecting groove 40 and the Y-direction connecting groove 41, and reserving part of the stress-bearing steel bars, anchor steel bars and the reserved protective layer thickness of the steel bars without casting;

[0077] S9: Install the damper 7 between the holding plate 5 and the top plate 60;

[0078] S10: dismantle the mechanical equipment in S7;

[0079] S11: Cast the load-bearing steel bars, anchor steel bars and reserved protective layer of the steel bars on the upper part of the S8 middle beam to form a functionally restorable assembled multi-limb L-shaped special-shaped column.

[0080] Regarding the design and selection of the damper 7, the damper 7 should have a large initial strength to ensure that the damper 7 has a small structural shape change at the moment of completing the assembly method S10, in order to ensure that the elevation change of the top of the bearing column head 4 is small. However, this will cause the elevation of the top of the cast beam in S8 to decrease. At this time, the beam is cast at the top of the steel bars reserved in S8, so that the top of the beam reaches the predetermined elevation.

[0081] Structural designers should note that the error between the change in elevation of the top of the bearing column head 4 after completing S10 and the reserved uncast height of the upper part of the S8 middle beam should be small.

[0082] The force-bearing principle of a restorable assembled multi-limb L-shaped special-shaped column provided by the present invention is described in detail below, as follows:

[0083] The L-shaped column is formed by vertically arranging a plurality of limbs 10, and the plurality of limbs 10 are arranged at intervals along the height direction by a multi-level L-shaped support surface, and the L-shaped support surface includes three groups of support frames and three groups of bearing steel structures 2. After each bearing steel structure 2 is formed with a bearing rubber plate 3, the bearing rubber plate 3 is weakly connected with the corbel 2. In this case, the bearing rubber plate 3 can rely on the steel corbel 21 inside the bearing rubber plate 3 to transfer the load to the corbel 2. At the same time, the bearing rubber plate 3 also has a certain elasticity, and the bearing rubber plate 3 can be compressed and deformed near the corbel 2 area. Therefore, multiple bearing rubber plates 3 are arranged on the multi-limb L-shaped column, which can make the core column 6 have a large displacement trend. In addition, after the bearing plate 5 is a reinforced concrete component connected to the transverse steel structure 11, there is no connection between the bearing plate 5 and the core column 6, and the bearing plate 5 will not limit the displacement trend of the core column 6. The lower part of the core column 6 is also connected to the top plate 60 through embedded parts. After a plurality of replaceable dampers 7 are detachably connected between the top plate 60 and the force-bearing plate 5, as the core column 6 tends to displace relative to the force-bearing plate 5, the dampers 7 will produce a corresponding energy dissipation effect, which helps the multi-limb L-shaped column dissipate a large amount of seismic energy, and can self-reset in small or medium earthquakes. After a large earthquake, it is only necessary to replace the dampers 7 and readjust the positions of the various components to quickly restore the structural function of the multi-limb L-shaped column of the present application. When replacing the dampers 7, it is necessary to first use mechanical equipment to apply an upward supporting force to the top plate 60, and then replace the dampers 7 when the structural safety is confirmed.

[0084] After the bearing steel structure 2 is combined with the bearing rubber plate 3, due to the large deadweight of the bearing steel structure 2, when the bearing rubber plate 3 is installed on the corbel 2, the bearing rubber plate 3 itself will produce a certain elastic compression deformation due to the deadweight of the bearing steel structure 2. In addition, after the core column 6 and the bearing column head 4 are cast, the deadweight of the core column 6 will make the elastic compression deformation of the bearing rubber plate 3 even greater. Therefore, after the core column 6 and the rear bearing column head 4 are cast, it is necessary to use mechanical equipment to apply a supporting force upward from the lower part of the top plate 60, so that the deformation of the bearing rubber plate 3 is restored and the upper top surface of the bearing column head 4 is lifted to a predetermined elevation. After completing the above steps, the damper 7 can be connected, and finally the mechanical equipment applying the supporting force is removed.

[0085] The X-direction connecting grooves 40 and the Y-direction connecting grooves 41 are respectively arranged at the ends of the three bearing column heads 4, which are used to transfer the force exerted on the beam, and then consume and disperse it through the L-shaped special-shaped columns in the present application, so as to play a role in providing stable support at the corners of the building during an earthquake, and at the same time have a recoverable function, thereby solving the problem that the special-shaped columns of replaceable components in the prior art are prone to crushing and damage.

[0086] When using the L-shaped column of the present application, it is possible to choose whether to seal the exposed areas in the thickness direction of the two limbs of the L-shaped column, but when sealing, a technology or process that is easy to disassemble should be selected.

[0087] The above contents are only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A functionally restorable assembled multi-limb L-shaped column, characterized in that: The L-shaped special-shaped column comprises a plurality of limb columns (10) arranged vertically, and the plurality of limb columns (10) are arranged at intervals along the height direction to form a multi-level L-shaped support surface, and the L-shaped support surface comprises three groups of support frames and three groups of bearing steel structures (2); The support frame comprises a corbel (30), the corbel (30) being arranged on adjacent side walls of the limb column (10), and a corbel connecting beam (31) being connected between adjacent corbels (30); adjacent support frames share the same limb column (10); The three groups of bearing steel structures (2) are respectively arranged in the three groups of support frames, and the bearing steel structures (2) are wrapped with bearing rubber plates (3) on the outside, and the bottom of the bearing rubber plates (3) is arranged on the support frame; the bearing steel structures (2) each include a square steel tube (20), and two groups of steel brackets (21) are arranged horizontally and vertically in the middle of the outer wall of the square steel tube (20), and the free ends of the two groups of steel brackets (21) on the same outer wall of the square steel tube (20) are respectively located above two adjacent brackets (30) of the same limb column (10); A transverse steel structure (11) is connected between a plurality of limbs (10) on the lower side of the final L-shaped support surface, and a bearing plate (5) is fixedly provided on the upper side of the transverse steel structure (11); The center of the bearing steel structure (2) and the bearing plate (5) of each level of the L-shaped support surface is respectively penetrated by a core column (6) cast in the vertical direction; The bottom of the core column (6) is detachably provided with a top plate (60); A plurality of dampers (7) are detachably provided between the force-bearing plate (5) and the top plate (60); The top of each core column (6) is provided with a bearing column head (4); The bearing column head (4) of the core column (6) located in the middle of the L-shaped support surface comprises an X-direction connection groove (40) and a Y-direction connection groove (41) which are connected horizontally and vertically; The bearing column head (4) of the core column (6) located on both sides of the L-shaped support surface has one end portion as an X-direction connection groove (40) and the other end portion as a Y-direction connection groove (41); The bearing rubber plate (3) has a thickness equal to the height of the bearing steel structure (2), and a width equal to the width of the bearing steel structure (2).

2. According to claim 1, a functionally restorable assembled multi-limb L-shaped column is characterized in that: A gap is provided between the force-bearing rubber plates (3) on each level of the L-shaped support surface.

3. The functionally restorable assembled multi-limb L-shaped column according to claim 1, characterized in that: A shear member (201) is provided on the inner wall of the square steel tube (20).

4. The functionally restorable assembled multi-limb L-shaped column according to claim 1, characterized in that: The two ends of the square steel tube (20) are fixedly connected to variable-section steel tubes (202), and the inner wall of the variable-section steel tube (202) is provided with a shear member (201).

5. The function-restorable assembled multi-limb L-shaped special-shaped column according to claim 4, characterized in that: The variable-section steel pipe (202) has a smaller cross-section near the two ends of the square steel pipe (20), and a larger cross-section away from the two ends of the square steel pipe (20).

6. A method for assembling a functionally restorable assembled multi-limb L-shaped special-shaped column, characterized in that: The assembled multi-limb L-shaped special-shaped column with restorable functions according to any one of claims 1 to 5 comprises the following steps: S1: preparing a bearing steel structure (2) in advance, and using a formwork to cast rubber onto the outside of the bearing steel structure (2), thereby forming a bearing rubber plate (3); S2: fixing all limbs (10) at predetermined positions; S3: The transverse steel structure (11) is fixedly connected between the plurality of limbs (10) on the lower side of the final L-shaped support surface according to preset positions, and three bearing plates (5) are fixedly arranged thereon respectively; S4: connecting the corbel connecting beams (31) between the corbels (30) on the limb column (10) from bottom to top in sequence according to the preset positions to form a support frame, and then placing the bearing rubber plate (3) in the preset position, and weakly connecting the bearing rubber plate (3) and the corbel (30) to form a multi-level L-shaped support surface; S5: The center of the bearing steel structure (2) and the bearing plate (5) of each level of the L-shaped support surface is cast through the core column (6) and the bearing column head (4) in the vertical direction, and embedded parts for the removable top plate (60) are embedded at the bottom of the core column (6) during casting; S6: Connecting the top plate (60) to the bottom of the core column (6); S7: using mechanical equipment to apply a vertical upward supporting force to the top plate (60) so that the top of the bearing column head (4) is lifted to a predetermined elevation; S8: Casting beams in the X-direction connection groove (40) and the Y-direction connection groove (41), leaving some stress-bearing steel bars, anchor steel bars and a reserved protective layer thickness for the steel bars without casting; S9: Installing a damper (7) between the holding plate (5) and the top plate (60); S10: dismantle the mechanical equipment in S7; S11: Cast the load-bearing steel bars, anchor steel bars and reserved protective layer of the steel bars on the upper part of the S8 middle beam to form a functionally restorable assembled multi-limb L-shaped special-shaped column.

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