CN214884871U - Node connecting structure for steel structure stiff column and steel bar - Google Patents

Abstract

The application discloses a node connection structure for steel construction strength nature post and reinforcing bar, including mounting panel, backup pad, reinforcing bar main part and spacing sleeve pipe, all be provided with limit structure on reinforcing bar main part and the spacing sleeve pipe. Carry on spacingly through the stop lever to spacing sleeve pipe, make to be connected more firmly between spacing sleeve pipe and the backup pad, avoid taking place relative movement between spacing sleeve pipe and backup pad after the installation, thereby improve stability and the fastness of being connected between spacing sleeve pipe and the reinforcing bar main part, carry out the auxiliary fixation to the reinforcing bar main part through supplementary splint, further improve the fastness of being connected between reinforcing bar main part and the backup pad, and the auxiliary fixation through supplementary splint, avoid the reinforcing bar main part to remove, make things convenient for the workman to twist spacing sleeve pipe to the reinforcing bar main part on, make the reinforcing bar main part more convenient when the installation, thereby carry out buffer protection through compressing the second spring, reduce the wearing and tearing between reinforcing bar main part and the backup pad.

Description

Node connecting structure for steel structure stiff column and steel bar

Technical Field

The application relates to a node connection structure, in particular to a node connection structure for steel structure stiff columns and steel bars.

Background

The stiffening column is a structure formed by structural members with profile steel externally coated with concrete, is widely applied to large-scale structures, strives for cross section minimization and maximum bearing capacity to save space, generally comprises H-shaped steel stiffening concrete, cross-shaped steel column concrete, round steel column concrete and the like, and generally passes through a special node connection structure when being connected and fixed with steel bars.

When the reinforcing bar was installed, need equalling insert earlier and establish to the backup pad inside, then will pass the one end of backup pad and have spacing sleeve pipe through threaded connection to this carries on spacingly to the reinforcing bar, and is fixed reinforcing bar and backup pad, but because between current spacing sleeve pipe and the backup pad, do not possess limit structure between reinforcing bar and the backup pad by all, lead to being connected firmly inadequately between reinforcing bar and the strength nature post. Therefore, the joint connection structure for the steel structure stiffness column and the steel bar is provided aiming at the problems.

Disclosure of Invention

The utility model provides a node connection structure that is arranged in steel construction strength nature post and reinforcing bar in this embodiment is arranged in solving among the connection node among the prior art does not have limit structure's problem between limit sleeve and the backup pad.

According to one aspect of the application, the node connecting structure for the steel structure stiff column and the steel bar comprises a mounting plate, a support plate, a steel bar main body and a limiting sleeve, wherein the steel bar main body and the limiting sleeve are both provided with limiting structures, a fixing structure is arranged in the support plate, and a protective structure is arranged on one side, away from the mounting plate, of the support plate;

the limiting structure comprises limiting rods, the side edges of the limiting sleeves are clamped with the limiting rods, annular grooves matched with the limiting rods are formed in the limiting sleeves, moving blocks are fixed to one ends of the mounting plates far away from the limiting rods and connected with the supporting plates in a sliding mode through sliding grooves, the sliding grooves are formed in the side edges of the supporting plates, limiting blocks are connected to the middle portions of the sliding grooves in a sliding mode, and first springs are fixed between the limiting blocks and the inner portions of the supporting plates.

Further, fixed knot constructs including supplementary splint, the inside sliding connection of backup pad on reinforcing bar main part top has supplementary splint, and supplementary splint top all is connected with connecting screw through the bearing, all be connected through the screw hole between connecting screw and the backup pad is inside, the connecting screw top all is fixed with the turning block.

Furthermore, the protective structure comprises an upper fixing plate and a lower fixing plate, a connecting plate is fixed at the lower part of one side of the supporting plate away from the mounting plate, a moving plate is connected in the connecting plate in a sliding way, an upper fixed plate is fixed at one end of the moving plate extending to the outer side of the connecting plate, a plurality of fixed rods are uniformly penetrated in the moving plate, the upper end and the lower end of the fixed rod are all fixed inside the connecting plate, the fixed rods at the upper end and the lower end of the movable plate are all sleeved with a second spring, the upper end and the lower end of the second spring are respectively fixed on the movable plate and the connecting plate, the top end of the upper fixed plate is connected with a lower fixed plate in a sliding way, the bottoms of the front end and the rear end of the lower fixed plate are both fixed with movable rods, the moving rod is connected with the inner part of the upper fixing plate in a sliding way, the bottom end of the moving rod is fixed with the upper fixing plate through a fixing bolt, and one side of the upper fixing plate opposite to one side of the lower fixing plate is provided with a placing groove matched with the steel bar main body.

Further, the backup pad side in the reinforcing bar main part outside all is fixed with the deflector, and the deflector all sets up to the loudspeaker form of transversely placing.

Further, the length between the steel bar main body and the mounting plate is larger than that of the limiting sleeve, and the upper end and the lower end of one side, close to the limiting block, of the moving block are both arc-shaped and matched with the limiting block.

Furthermore, the limiting rods are all arranged in a T shape in a transverse mode, and the height of the moving blocks is larger than the wall thickness of the annular groove.

Furthermore, the heights from the limiting blocks to the side ends of the sliding grooves are equal to the heights of the moving blocks, and the limiting blocks are arranged in a T shape in a transverse mode.

Furthermore, the auxiliary clamping plates are all arranged into an arc shape matched with the steel bar main body, one side, close to the steel bar main body, of each auxiliary clamping plate is glued with a sliding rubber pad, and the top ends of the rotating blocks are symmetrically provided with grooves.

Furthermore, the movable rods are all arranged in an inverted T shape, thread grooves matched with the fixing bolts are formed in the upper fixing plate and the movable rods, and handles are symmetrically fixed to the top ends of the lower fixing plate.

Furthermore, a movable groove matched with the moving plate is formed in the connecting plate, and through holes matched with the fixed rods are uniformly formed in the moving plate.

Through the above-mentioned embodiment of this application, adopted supplementary limit structure, carry on spacingly to limit sleeve through the gag lever post for be connected more firmly between limit sleeve and the backup pad, then carry on spacingly to the reinforcing bar main part through supplementary splint, make to be connected more firmly between reinforcing bar main part and the backup pad, solved the problem that does not possess limit structure between current limit sleeve and the backup pad, improved the firmness after the backup pad installation.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a schematic sectional front view of a portion of an embodiment of the present application;

FIG. 3 is a schematic side sectional view of a portion of one embodiment of the present application;

FIG. 4 is a schematic sectional front view of a portion of a connecting plate according to an embodiment of the present disclosure;

fig. 5 is an enlarged schematic view of a structure at a in fig. 2 according to an embodiment of the present application.

In the figure: 1. mounting panel, 2, backup pad, 3, reinforcing bar main part, 4, spacing sleeve pipe, 5, gag lever post, 6, ring channel, 7, movable block, 8, spout, 9, the stopper, 10, first spring, 11, the deflector, 12, supplementary splint, 13, connecting screw, 14, turning block, 15, an upper fixed plate, 16, a lower fixed plate, 17, the standing groove, 18, the carriage release lever, 19, fixing bolt, 20, the connecting plate, 21, the movable plate, 22, the dead lever, 23, the second spring.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The node connection structure in this embodiment may be applied to a method for installing a stiff column formwork, for example, the following method for installing a stiff column formwork is provided in this embodiment, and the node connection structure in this embodiment may be used for a method for installing a stiff column formwork.

Manufacturing a stiff column template frame according to the interface size of the stiff column, wherein the stiff column template frame is formed by cutting, assembling and welding template supporting devices with the thickness of 4mm through steel plates, the width of the stiff column template frame is consistent with the interface size of the stiff column, and the height of the stiff column template frame is consistent with the height of the stiff column; the stiffened column template frame consists of two halves, wherein four edges of the stiffened column template frame are respectively provided with 4 reinforcing angle steels from the bottom to the top of a stiffened column for welding and reinforcing, the strength is increased, the stiffened column template frame is divided into two halves for on-site assembly, the butt joint of the two halves is communicated with a welding bolt fastening angle steel, a plurality of bolt holes with the distance of 100mm are drilled, the distance of each pair of bolt holes is 300mm, and the two halves are fastened and screwed through mounting fastening bolts; on the outer side surface of the stiff column template frame, oblique support stop angle steel of angle steel with the length of 100mm is welded at the positions, which are 500mm away from the top, of four side surfaces of the stiff column, the stiff column template frame is installed on site, and when low-layer structure concrete of the stiff column is poured, reinforcing steel bar heads with the height of 50mm and the diameter of 20mm are arranged in four directions of the stiff column, and the reinforcing steel bar heads are vertical to the ground; the 1 st reinforcing steel bar heads are arranged at positions 100mm away from the lateral surface of the stiff column in pairs, the 2 nd reinforcing steel bar heads are arranged at positions 2000mm away from the lateral surface of the stiff column in pairs, and after the stiff column formwork frame is installed in place and the installation bolts are fastened, the bottom of the stiff column formwork frame and the reinforcing steel bar heads are wedged tightly through battens; and the top of the steel pipe is supported against the angle steel of the inclined support stop block welded on the outer side of the device in advance through the inclined support steel pipe, the bottom of the inclined support steel pipe supports against the 2 nd steel bar head on the ground, and the inclined support steel pipe is supported tightly through the spiral ejector rod, so that the steel pipe has supporting force.

Of course, the present embodiment may be used for other mounting methods. Here, description is not repeated, and the node connection structure according to the embodiment of the present application is described below.

Referring to fig. 1-5, a node connection structure for a steel structure stiff column and a steel bar comprises an installation plate 1, a support plate 2, a steel bar main body 3 and a limiting sleeve 4, wherein the steel bar main body 3 and the limiting sleeve 4 are both provided with limiting structures, a fixing structure is arranged inside the support plate 2, and a protection structure is arranged on one side of the support plate 2 away from the installation plate 1;

limiting structure includes gag lever post 5, every 4 sides of spacing sleeve pipe all block has gag lever post 5, all set up on the spacing sleeve pipe 4 with gag lever post 5 complex ring channel 6, the one end of mounting panel 1 that gag lever post 5 kept away from all is fixed with movable block 7, and movable block 7 passes through spout 8 and 2 sliding connection of backup pad, spout 8 is all seted up at backup pad 2 sides, spout 8 middle part sliding connection has stopper 9, and all be fixed with first spring 10 between stopper 9 and the backup pad 2 is inside, carry out spacing fixed to spacing sleeve pipe 4 through gag lever post 5, guarantee that spacing sleeve pipe 4 is twisting the back on moving to reinforcing bar main part 3, can not take place relative movement with backup pad 2, thereby improve the firmness between spacing sleeve pipe 4 and the backup pad 2.

The fixing structure comprises an auxiliary clamping plate 12, the inside of a supporting plate 2 at the top end of a steel bar main body 3 is slidably connected with the auxiliary clamping plate 12, the top ends of the auxiliary clamping plates 12 are connected with connecting screw rods 13 through bearings, the connecting screw rods 13 are connected with the inside of the supporting plate 2 through threaded holes, rotating blocks 14 are fixed at the top ends of the connecting screw rods 13, the steel bar main body 3 is pre-fixed through the auxiliary clamping plate 12, the steel bar main body 3 is prevented from shaking when a limiting sleeve 4 is screwed, and the firmness of connection between the supporting plate 2 and the steel bar main body 3 is also improved; the protective structure comprises an upper fixed plate 15 and a lower fixed plate 16, a connecting plate 20 is fixed at the lower part of one side of a supporting plate 2 far away from an installation plate 1, a moving plate 21 is connected in the connecting plate 20 in a sliding manner, the upper fixed plate 15 is fixed at one end of the moving plate 21 extending to the outer side of the connecting plate 20, a plurality of fixed rods 22 equally penetrate through the moving plate 21, the upper end and the lower end of each fixed rod 22 are fixed in the connecting plate 20, second springs 23 are sleeved on the fixed rods 22 at the upper end and the lower end of each moving plate 21, the upper end and the lower end of each second spring 23 are respectively fixed on the moving plate 21 and the connecting plate 20, the lower fixed plate 16 is connected at the top end of the upper fixed plate 15 in a sliding manner, a moving rod 18 is fixed at the bottom of the front end and the rear end of the lower fixed plate 16, the moving rod 18 is connected with the inner part of the upper fixed plate 15 in a sliding manner through a fixed bolt 19, a placing groove 17 matched with a steel bar main body 3 is formed at one side of the upper fixed plate 15 and the lower fixed at one side of the lower fixed plate 16, the reinforcing steel bar main body 3 is fixed through the upper fixing plate 15 and the lower fixing plate 16, so that the vibration force of the reinforcing steel bar main body 3 is conveniently transmitted to the moving plate 21, the reinforcing steel bar main body 3 is protected in a buffering mode through the second spring 23, and the reinforcing steel bar main body 3 is prevented from being shaken by external force and abraded between the reinforcing steel bar main body 3 and the supporting plate 2 during subsequent construction, so that the reinforcing steel bar main body 3 is protected;

the guide plates 11 are fixed on the side edges of the support plates 2 on the outer side of the steel bar main body 3, the guide plates 11 are arranged in a horn shape which is transversely arranged, the steel bar main body 3 is guided by the guide plates 11, and the steel bar main body 3 is conveniently inserted into the steel bar main body 3; the length from the steel bar main body 3 to the mounting plate 1 is larger than that of the limiting sleeve 4, the upper end and the lower end of one side, close to the limiting block 9, of the moving block 7 are both provided with arcs matched with the limiting block 9, the limiting sleeve 4 can be screwed onto the steel bar main body 3 after the steel bar main body 3 is inserted into the supporting plate 2, and the limiting block 9 can be conveniently extruded by the moving block 7 during moving; the limiting rods 5 are all arranged in a transverse T shape, the height of the moving block 7 is larger than the wall thickness of the annular groove 6, and the limiting rods 5 can be conveniently pulled while the limiting sleeves 4 are limited by the limiting rods 5; the heights from the limiting blocks 9 to the side ends of the sliding grooves 8 are equal to the height of the moving blocks 7, the limiting blocks 9 are all arranged in a transverse T shape, and the moving blocks 7 can be fixed by the limiting blocks 9 after the limiting rods 5 move out of and into the annular grooves 6, so that the limiting rods 5 are conveniently fixed; the auxiliary clamping plates 12 are all arranged into an arc shape matched with the steel bar main body 3, one sides of the auxiliary clamping plates 12 close to the steel bar main body 3 are glued with a sliding rubber pad, the top ends of the rotating blocks 14 are symmetrically provided with grooves, so that the auxiliary clamping plates 12 can conveniently clamp the supporting plate 2, the friction force between the auxiliary clamping plates 12 and the steel bar main body 3 is increased, and the connecting screw rods 13 can be conveniently screwed through the rotating blocks 14; the movable rods 18 are all arranged in an inverted T shape, thread grooves matched with the fixing bolts 19 are formed in the upper fixing plate 15 and the movable rods 18, handles are symmetrically fixed at the top ends of the lower fixing plate 16, the upper fixing plate 15 is prevented from being separated from the lower fixing plate 16, and the upper fixing plate 15 is conveniently pulled by the handles; a movable groove matched with the moving plate 21 is formed in the connecting plate 20, through holes matched with the fixed rods 22 are uniformly formed in the moving plate 21, and the length of the connecting plate 20 is larger than that of the guide plate 11, so that the moving plate 21 can conveniently move in the connecting plate 20.

When the utility model is used, when the steel bar main body 3 is required to be installed, the lower fixing plate 16 is pulled by the handle according to the installation requirement, so that the lower fixing plate 16 drives the moving rod 18 to move upwards, the steel bar main body 3 is inserted into the supporting plate 2 under the guiding of the guiding plate 11, then the rotating block 14 is screwed, the connecting screw 13 is driven to rotate in the supporting plate 2, the auxiliary clamping plate 12 is driven to clamp and fix the steel bar main body 3 under the action of the screw thread, the limiting sleeve 4 is screwed to the steel bar main body 3, then the limiting rod 5 is pressed, so that the limiting rod 5 drives the moving block 7 to move in the chute 8, the limiting rod 5 extrudes the limiting block 9, the limiting block 9 compresses the first spring 10 to move towards the inside of the supporting plate 2, namely, the limiting of the limiting block 9 on the moving block 7 is relieved, the limiting rod 5 is continuously pressed, when the limiting rod 5 is clamped to the inside of the annular groove 6, the moving block 7 completely passes over the limit block 9, so that the extrusion of the moving block 7 to the limit block 9 is released, under the pushing of the first spring 10, the limit block 9 moves to the side edge of the moving block 7, cooperates with the chute 8 to limit and fix the moving block 7, the limiting rod 5 can be fixed in the annular groove 6, so that the limiting sleeve 4 is limited by the limiting rod 5, then the lower fixing plate 16 is pressed, so that the lower fixing plate 16 abuts on the reinforcement body 3, and is screwed into the screw grooves inside the moving rod 18 and the upper fixing plate 15 by the fixing bolt 19, the lower fixing plate 16 and the upper fixing plate 15 can be fixed, when the reinforcement body 3 is impacted and moved in the subsequent installation, the moving plate 21 is driven by the upper fixed plate 15 to move on the fixed rod 22 to compress the second spring 23, namely, the partial extrusion force can be counteracted by the restoring force of the second spring 23, so that the main body 3 of the steel bar is protected in a buffering manner.

The application has the advantages that:

1. the limiting sleeve 4 is limited by the limiting rod 5, so that the limiting sleeve 4 is connected with the supporting plate 2 more firmly, the limiting sleeve 4 is prevented from moving relative to the supporting plate 2 after being installed, and the stability and firmness of connection between the limiting sleeve 4 and the steel bar main body 3 are improved;

2. the auxiliary fixing device is reasonable in structure, the reinforcing steel bar main body 3 is fixed in an auxiliary mode through the auxiliary clamping plate 12, the firmness of connection between the reinforcing steel bar main body 3 and the supporting plate 2 is further improved, the reinforcing steel bar main body 3 is prevented from moving through the auxiliary fixing of the auxiliary clamping plate 12, workers can conveniently screw the limiting sleeve 4 onto the reinforcing steel bar main body 3, and the reinforcing steel bar main body 3 is convenient and fast to install;

3. this application is rational in infrastructure, presss from both sides tight fixedly to reinforcing bar main part 3 through upper fixed plate 15 and bottom plate 16, when reinforcing bar main part 3 rocked, can drive movable plate 21 at the inside removal of connecting plate 20 through upper fixed plate 15 to carry out the buffer protection through compression second spring 23, reduce the wearing and tearing between reinforcing bar main part 3 and the backup pad 2.

It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a nodal connection structure that is used for steel construction strength nature post and reinforcing bar which characterized in that: the steel bar fixing device comprises a mounting plate (1), a supporting plate (2), a steel bar main body (3) and a limiting sleeve (4), wherein the steel bar main body (3) and the limiting sleeve (4) are both provided with limiting structures, a fixing structure is arranged inside the supporting plate (2), and one side, far away from the mounting plate (1), of the supporting plate (2) is provided with a protection structure;

the limiting structure comprises limiting rods (5), each limiting sleeve (4) is clamped at the side edge of the limiting rod (5), annular grooves (6) matched with the limiting rods (5) are formed in the limiting sleeves (4), a moving block (7) is fixed to one end of the mounting plate (1) far away from the limiting rods (5), the moving block (7) is connected with the supporting plate (2) in a sliding mode through sliding grooves (8), the sliding grooves (8) are formed in the side edge of the supporting plate (2), limiting blocks (9) are connected to the middle of the sliding grooves (8) in a sliding mode, and first springs (10) are fixed between the limiting blocks (9) and the inside of the supporting plate (2).

2. The joint connection structure for the steel structure stiff column and the steel bar according to claim 1, wherein: fixed knot constructs including supplementary splint (12), backup pad (2) inside sliding connection on reinforcing bar main part (3) top has supplementary splint (12), and supplementary splint (12) top all is connected with connecting screw (13) through the bearing, all be connected through the screw hole between connecting screw (13) and backup pad (2) inside, connecting screw (13) top all is fixed with turning block (14).

3. The joint connection structure for the steel structure stiff column and the steel bar according to claim 1, wherein: the protective structure comprises an upper fixing plate (15) and a lower fixing plate (16), a connecting plate (20) is fixed on the lower portion, far away from one side of the mounting plate (1), of the supporting plate (2), a moving plate (21) is connected to the inside of the connecting plate (20) in a sliding manner, the upper fixing plate (15) is fixed at one end, extending to the outer side of the connecting plate (20), of the moving plate (21), a plurality of fixing rods (22) equally penetrate through the inside of the moving plate (21), the upper end and the lower end of each fixing rod (22) are fixed inside the connecting plate (20), second springs (23) are sleeved on the fixing rods (22) at the upper end and the lower end of the moving plate (21), the upper end and the lower end of each second spring (23) are fixed on the moving plate (21) and the connecting plate (20) respectively, the top end of the upper fixing plate (15) is connected with the lower fixing plate (16) in a sliding manner, and moving rods (18) are fixed at the bottoms of the front end and the rear end of the lower fixing plate (16), and the moving rod (18) is connected with the inner part of the upper fixing plate (15) in a sliding way, the bottom end of the moving rod (18) is fixed with the upper fixing plate (15) through a fixing bolt (19), and one side of the upper fixing plate (15) opposite to one side of the lower fixing plate (16) is provided with a placing groove (17) matched with the steel bar main body (3).

4. The joint connection structure for the steel structure stiff column and the steel bar according to claim 1, wherein: the side of the support plate (2) outside the steel bar main body (3) is fixed with a guide plate (11), and the guide plate (11) is arranged into a horn shape which is transversely arranged.

5. The joint connection structure for the steel structure stiff column and the steel bar according to claim 1, wherein: the length between the steel bar main body (3) and the mounting plate (1) is larger than that of the limiting sleeve (4), and the upper end and the lower end of one side, close to the limiting block (9), of the moving block (7) are both arranged to be arc-shaped and matched with the limiting block (9).

6. The joint connection structure for the steel structure stiff column and the steel bar according to claim 1, wherein: the limiting rods (5) are all arranged in a T shape in a transverse mode, and the height of the moving blocks (7) is larger than the wall thickness of the annular grooves (6).

7. The joint connection structure for the steel structure stiff column and the steel bar according to claim 1, wherein: the height from the limiting blocks (9) to the side ends of the sliding grooves (8) is equal to that of the moving blocks (7), and the limiting blocks (9) are arranged in a T shape in a transverse mode.

8. The joint connection structure for the steel structure stiff column and the steel bar according to claim 2, wherein: the auxiliary clamping plates (12) are all arranged in an arc shape matched with the steel bar main body (3), one side, close to the steel bar main body (3), of each auxiliary clamping plate (12) is glued with a sliding rubber pad, and the top ends of the rotating blocks (14) are symmetrically provided with grooves.

9. The joint connection structure for the steel structure stiff column and the steel bar according to claim 3, wherein: the movable rod (18) is arranged in an inverted T shape, thread grooves matched with the fixing bolts (19) are formed in the upper fixing plate (15) and the movable rod (18), and handles are symmetrically fixed at the top end of the lower fixing plate (16).

10. The joint connection structure for the steel structure stiff column and the steel bar according to claim 3, wherein: a movable groove matched with the moving plate (21) is formed in the connecting plate (20), and through holes matched with the fixing rods (22) are uniformly formed in the moving plate (21).

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