CN210713251U - Supporting structure of assembled concrete filled steel tube beam column node - Google Patents

Abstract

The utility model relates to the field of building structure components, and discloses a supporting structure of an assembly type concrete-filled steel tube beam column node, which comprises a concrete-filled steel tube combined column and an H-shaped steel beam, wherein the concrete-filled steel tube combined column comprises a central steel tube column and a tip steel tube column; the H-shaped steel beam is connected with the end steel pipe column, and an inclined strut assembly is arranged between diagonal beam column nodes; the inclined strut assembly comprises an inclined strut and mounting assemblies at two ends, and the mounting assemblies comprise an assembly I and an assembly II; the assembly I comprises a connecting plate I and a side plate I, the assembly II comprises a connecting plate II and a side plate II, the connecting plate I and the connecting plate II are detachably connected, and the side plate I and the side plate II are connected through a lap joint plate; openings are formed in two ends of the inclined support, and the inclined support is inserted into the connecting plate II through the openings. The utility model meets the requirements of 'strong node and weak component', and improves the reliability of the connection of the node area; the prefabricated steel pipe is completely prefabricated in a factory, only the bolt connection is needed on the spot, the connection quality is guaranteed, the construction period is shortened, and the project cost is saved.

Description

Supporting structure of fabricated concrete-filled steel tubular beam-column joints

technical field

The utility model relates to the field of building structural components, in particular to a support structure of an assembled concrete-filled steel tube beam-column joint.

Background technique

In traditional high-rise steel structure houses, the method of steel pipe supporting and connecting nodes is usually direct welding or bolt welding connection. This connection method first requires opening a hole in the upper part of the steel pipe, and then bolting or welding the side wall. Finally, the hole is filled with steel plates. The disadvantage of this method is that the structure is complex, the processing and installation are difficult, the on-site welding volume is large, and the quality controllability is poor.

With the popularity and height of steel structure buildings, higher requirements are put forward for the bearing capacity, construction speed, project cost and seismic performance of the support node area. The connection of the support node area should meet the following requirements: 1. There must be Sufficient rigidity to meet the requirements of "strong joints and weak components"; 2. Realize all components factory-made, installed on site, and avoid on-site welding; 3. Convenient construction, shorten the construction period, and save project costs.

Utility model content

The main purpose of the present utility model is to provide a support structure for an assembled concrete-filled steel tube beam-column joint that meets the above requirements.

In order to achieve the above purpose, the support structure of the assembled CFST beam-column joint of the present invention includes a CFST composite column and an H-shaped steel beam, and the CFST composite column includes a central steel tube column and an end steel tube column;

The H-shaped steel beam is connected with the steel pipe column at the end, and diagonal bracing components are arranged between the diagonal beam-column nodes;

The diagonal bracing components include diagonal bracing and installation components at both ends of the diagonal bracing, and the installation components include component I and component II;

The component I includes a connecting plate I and a side plate I. The connecting plate I is a symmetrical structure, and its two mutually perpendicular sides are respectively fixed on the end steel pipe column and the H-shaped steel beam, and the other two symmetrical sides are fixed. With side plate I;

Component II includes a connecting plate II and a side plate II, the connecting plate II is a symmetrical structure, the width of one end is larger than the other end, and the two symmetrical sides of the wider end are fixed with the side plate II;

The connecting plate I and the connecting plate II are detachably connected, and the side plate I and the side plate II are connected through the overlapping plates respectively overlapped with them;

The diagonal bracing is a square steel pipe. There are openings at both ends of the diagonal bracing. The diagonal bracing is inserted into the connecting plate II through the opening. The openings at both ends of the diagonal bracing are provided with sealing plates. The sealing plates are vertically fixed on the connecting plate II and block the diagonal bracing. opening.

Further, the adjacent ends of the connecting plate I and the connecting plate II are provided with bolt holes, and the bolt holes on the connecting plate I coincide with the bolt holes on the connecting plate II, and are connected by high-strength bolts;

Further, both ends of the diagonal brace are welded and fixed with the sealing plate;

Further, the lap plate is connected with the side plate I and the side plate II by high-strength bolts;

Further, the central steel pipe column and the end steel pipe columns are connected by two parallel connecting plates III, the inner connecting plate III is on the same plane as the inner surface of the central steel pipe column and the end steel pipe column, and the outer connecting plate III and the central steel pipe are in the same plane. The outer sides of the column and the end steel column are in the same plane;

Further, the H-shaped steel beam is vertically fixed on the end steel pipe column, the two sides of the flange plate of the H-shaped steel beam and the inner and outer sides of the end steel pipe column are on the same horizontal plane, and the inner and outer sides of the end steel pipe column are fixed. A stiffening plate is provided, and the two ends of the stiffening plate are respectively fixedly connected with the flange plates of the connecting plate III and H-shaped steel beams;

Further, the stiffening plate comprises two sets of upper and lower parallels, which are respectively fixedly connected with the upper and lower flange plates of the H-shaped steel beam;

Further, the central steel tube column and the end steel tube columns form an "L"-shaped, "T"-shaped or cross-shaped structure.

The utility model has the following beneficial effects:

(1) The utility model can meet the requirements of "strong nodes and weak members", and improves the reliability of the connection of the support node area of the concrete-filled steel tube composite column;

(2) The utility model completely realizes the factory prefabrication, and only needs to be connected by bolts on site, which avoids on-site welding and ensures the quality of the connection;

(3) The utility model avoids the on-site opening of the steel pipe, the construction is convenient, the construction period is shortened, and the project cost is saved.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

2 is an exploded view of the structure of the diagonal brace assembly in the present utility model;

Fig. 3 is the structural schematic diagram of component I in the present invention;

4 is a schematic structural diagram of component II in the present invention;

Fig. 5 is the structural schematic diagram of the diagonal bracing in the present utility model;

6 is a schematic diagram of the plane structure of the diagonal brace assembly of the present invention after assembly;

Figure 7 is a schematic diagram of the three-dimensional structure of the diagonal brace assembly of the present invention after assembly;

Figure 8 is a schematic diagram of the structure of the concrete-filled steel tubular composite column in the present invention;

Figure 9 is a schematic plan view of a T-shaped concrete-filled steel tubular composite column;

Figure 10 is a schematic plan view of a cross-shaped CFST composite column;

Wherein, the above drawings include the following reference signs: 1. H-shaped steel beam; 2. Central steel pipe column; 3. End steel pipe column; 4. Diagonal bracing assembly; 5. Diagonal bracing; 6. Component I; II; 8, connecting plate I; 9, side plate I; 10, connecting plate II; 11, side plate II; 12, lap plate; 13, sealing plate; 14, connecting plate III; 15, stiffening plate.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings.

As shown in FIG. 1, the support structure of the assembled concrete-filled steel tube beam-column joint of the present invention includes a concrete-filled steel tube composite column and an H-shaped steel beam 1, and the concrete-filled steel tube composite column includes a central steel tube column 2 and an end steel tube column 3. H The profiled steel beams are connected with the end steel pipe columns, the beams and columns form a frame structure, and diagonal bracing components 4 are arranged between the diagonal beam-column nodes;

As shown in Figure 2, the diagonal brace assembly includes the diagonal brace 5 and the installation assemblies at both ends of the diagonal brace, and the installation assembly includes the assembly I6 and the assembly II7;

As shown in Figure 3, the component I includes a connecting plate I8 and a side plate I9. The connecting plate I is a symmetrical structure, and its two mutually perpendicular sides are respectively fixed on the end steel pipe column and the H-shaped steel beam, and the other two symmetrical Side plates I are fixed on the sides of the

As shown in Figure 4, the component II includes a connecting plate II10 and a side plate II11, the connecting plate II is a symmetrical structure, the width of one end is larger than the other end, and the side plate II is fixed on the two symmetrical sides of the wider end;

The connecting plate I and the connecting plate II are detachably connected, and the adjacent ends of the connecting plate I and the connecting plate II are provided with bolt holes. The two are connected by high-strength bolts; the side plate I and the side plate II are connected by the lap plates 12 respectively overlapped with them, and the lap plate is connected with the side plate I and the side plate II by high-strength bolts.

As shown in Figure 5, the diagonal bracing is a square steel pipe, an opening is provided in the middle of both ends of the diagonal bracing, the diagonal bracing is inserted on the connecting plate II through the opening, and the openings at both ends of the diagonal bracing are provided with sealing plates 13, which are vertically fixed on the connecting plate II. The opening of the diagonal brace is blocked on the connecting plate II, and the sealing plate and the diagonal brace are welded and fixed. In this way, the overall rigidity of the end of the bracing can be enhanced, and the buckling failure at the opening of the steel pipe can be effectively avoided.

Except for the connection between the lap plate and the side plate I, the side plate II, and the connection between the connection plate I and the connection plate II, the connections of the above structures are all welded. The welding parts are all completed in the factory, that is, the connection between component I, component II, the connection between component I and the beam and column, and the connection between component II and the sealing plate and diagonal brace are all completed in advance in the factory, and only a few parts need to be assembled on site. I and the connecting plate II are connected by bolts, and the lap plate is connected with the side plate I and the side plate II by bolts. After the assembly is completed, as shown in Figure 6 and Figure 7.

As shown in Figure 8, the central steel pipe column and the end steel pipe columns are connected by two parallel connecting plates III14. The inner connecting plate III is on the same plane as the inner surface of the central steel pipe column and the end steel pipe column, and the outer connecting plate III is on the same plane. In the same plane as the outer sides of the central steel column and the end steel column.

The H-shaped steel beam is vertically fixed on the end steel pipe column. The two sides of the flange plate of the H-shaped steel beam are on the same horizontal plane as the inner and outer sides of the end steel pipe column. The inner and outer sides of the end steel pipe column are fixed with stiffeners. Plate 15, the two ends of the stiffening plate are respectively fixedly connected to the flange plate of the connecting plate III and the H-shaped steel beam. The stiffening plate includes upper and lower groups parallel to each other, which are respectively fixedly connected with the upper and lower flange plates of the H-shaped steel beam.

In addition to the "L"-shaped structure in Fig. 8 , the CFST composite column can also be the "T"-shaped structure in Fig. 9 or the cross-shaped structure in Fig. 10 .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (8)

1. A support structure for an assembled CFST beam-column joint, comprising a CFST composite column and an H-shaped steel beam (1), and the CFST composite column comprises a central steel tube column (2) and an end steel tube column (3), which is characterized by, The H-shaped steel beam (1) is connected with the end steel pipe column (3), and diagonal brace components (4) are arranged between the diagonal beam-column nodes; The diagonal bracing assembly (4) includes the diagonal bracing (5) and the installation assemblies at both ends of the diagonal bracing (5), and the installation assembly includes the assembly I (6) and the assembly II (7); The component I(6) includes a connecting plate I(8) and a side plate I(9). The connecting plate I(8) is a symmetrical structure, and its two mutually perpendicular sides are respectively fixed on the end steel pipe columns (3) and H. On the profiled steel beam (1), the other two symmetrical sides are fixed with side plates I (9); The assembly II (7) includes a connecting plate II (10) and a side plate II (11). The connecting plate II (10) is a symmetrical structure, the width of one end is larger than the other end, and the two symmetrical sides of the wider end are fixed on both sides. Side plate II (11); The connecting plate I (8) and the connecting plate II (10) are detachably connected, and the side plate I (9) and the side plate II (11) are connected through the overlapping plates (12) respectively overlapping with them; The diagonal bracing (5) is a square steel pipe, the two ends of the diagonal bracing (5) are provided with openings, the diagonal bracing (5) is inserted on the connecting plate II (10) through the opening, and the openings at both ends of the diagonal bracing (5) are provided with sealing plates (13), the sealing plate (13) is vertically fixed on the connecting plate II (10) and blocks the opening of the diagonal brace (5). 2. The support structure of the prefabricated concrete-filled steel tubular beam-column joint according to claim 1, wherein the adjacent ends of the connecting plate I (8) and the connecting plate II (10) are provided with bolt holes, and the connecting plate I (10) is provided with bolt holes. The bolt holes on (8) coincide with the bolt holes on the connecting plate II (10) and are connected by high-strength bolts. 3. The support structure of the prefabricated CFST beam-column joint according to claim 1, characterized in that the lap plate (12) is connected with the side plate I (9) and the side plate II (11) by high-strength bolts. 4 . The support structure of the prefabricated concrete-filled steel tubular beam-column joint according to claim 1 , wherein the two ends of the diagonal brace ( 5 ) are welded and fixed to the sealing plate ( 13 ). 5 . 5. The support structure of the prefabricated CFST beam-column joint according to claim 1, wherein the central steel pipe column (2) and the end steel pipe column (3) are connected by two parallel connecting plates III (14) , the inner connecting plate III (14) is on the same plane as the inner side of the central steel pipe column (2) and the end steel pipe column (3), and the outer connecting plate III (14) is on the same plane as the central steel pipe column (2) and the end steel pipe The outer sides of the column (3) are in the same plane. 6. The support structure of the prefabricated CFST beam-column joint according to claim 5, wherein the H-shaped steel beam (1) is vertically fixed on the end steel pipe column (3), and the H-shaped steel beam (1) The two sides of the flange plate and the inner and outer sides of the end steel pipe column (3) are on the same horizontal plane, and the inner and outer sides of the end steel pipe column (3) are fixedly provided with stiffening plates (15). The ends are respectively fixedly connected with the connecting plate III (14) and the flange plate of the H-shaped steel beam (1). 7. The support structure of the prefabricated concrete-filled steel tube beam-column joint according to claim 1, wherein the stiffening plate (15) comprises two sets of upper and lower parallels, which are respectively connected with the upper and lower flanges of the H-shaped steel beam (1). Board fixed connection. 8. The support structure of the prefabricated CFST beam-column joint according to claim 1, wherein the central steel tube column (2) and the end steel tube column (3) form an "L" shape, a "T" shape or a cross type structure.

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