CN209989954U - Conversion node of upper steel pipe column and lower floor reinforced concrete column - Google Patents

Abstract

The utility model discloses a conversion node between an upper-layer steel pipe column and a lower-layer reinforced concrete column. The conversion node is a connection point between an upper-layer steel pipe column and a lower-layer reinforced concrete column. The transition node area is connected with reinforced concrete beams in the horizontal direction. In the transition node area, a ring plate is welded on the inner side of the upper-layer steel pipe column, and the ring plate is provided with grouting holes. The inner side of the upper-layer steel pipe column and At least one side of the outer side is welded with a steel pipe stud, and the outer side of the upper steel pipe column is welded with a T-shaped corbel; the T-shaped corbel includes: a corbel flange, and the corbel flange extends in a horizontal direction; a corbel web provided at the bottom of the corbel flange and extending downward; and a corbel peg provided on the corbel web. According to the utility model, the transition joint between the upper-layer steel pipe column and the lower-layer reinforced concrete column has good mechanical performance and is safe and reliable.

Description

The transition node between the upper steel tubular column and the lower reinforced concrete column

technical field

The utility model relates to the technical field of construction engineering and composite structures, in particular to a transition node of an upper-layer steel pipe column and a lower-layer reinforced concrete column.

Background technique

In the related art, in recent years, many building structures have adopted a structural form in which the bottom is a reinforced concrete column and the upper part is a steel pipe column. It has always been the focus of attention what kind of transition joint structure should be adopted at the junction of the upper steel tube column, the lower reinforced concrete column and the reinforced concrete frame beam. In existing projects, the steel pipe is often inserted into the concrete column, and the insertion depth is the height of one floor. Although this method can ensure the safety of the structure, it is too conservative, the waste of steel is serious, and the construction is cumbersome and difficult. For this reason, how to optimize the structure of the conversion node on the basis of ensuring good mechanical performance, safe and reliable structure, reduce the insertion length of the steel pipe, and make the construction simple and convenient, is whether this type of conversion node can be better key to developing applications.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, one purpose of the present invention is to propose a transition node between the upper-layer steel pipe column and the lower-layer reinforced concrete column, which has superior mechanical performance, safety, reliability and convenient construction.

Another purpose of the present utility model is to propose a construction method for the transition node between the upper-layer steel pipe column and the lower-layer reinforced concrete column.

According to the transition node of the upper-layer steel pipe column and the lower-layer reinforced concrete column according to the embodiment of the first aspect of the present invention, the transition node is the connection point of the upper-layer steel pipe column and the lower-layer reinforced concrete column, and the upper-layer steel pipe column is inserted into the transition node area , the conversion node area is connected with reinforced concrete beams along the horizontal direction, in the conversion node area, the inner side of the upper steel pipe column is welded with a ring plate, and the ring plate is provided with grouting holes, the upper steel pipe column Steel pipe studs are welded on at least one of the inner side and the outer side of the upper-layer steel pipe column, and a T-shaped corbel is welded on the outer side of the upper-layer steel pipe column; wherein, the T-shaped corbel includes: a corbel flange, the corbel flange extending in the horizontal direction; a corbel web provided at the bottom of the corbel flange and extending downward; and a corbel peg provided in the corbel flank board.

According to the transition node of the upper-layer steel pipe column and the lower-layer reinforced concrete column according to the embodiment of the present invention, a ring plate is welded on the inner side of the upper-layer steel pipe column, and the ring plate is provided with a grouting hole, and the grouting hole is convenient to the conversion node area. Pouring concrete is beneficial to improve the mechanical performance in the transition node area. In addition, by welding the T-shaped corbels on the outer side of the upper-layer steel pipe column, it is beneficial to improve the reliability of the connection between the upper-layer steel pipe column and the lower-layer reinforced concrete column, and is beneficial to improve the strength and ductility of the transition node.

In addition, according to the above-mentioned embodiment of the present utility model, the transition node between the upper-layer steel pipe column and the lower-layer reinforced concrete column also has the following additional technical features:

According to some embodiments of the present invention, the corbel flange and the ring plate are disposed opposite to each other in the radial direction of the upper steel pipe column.

According to some embodiments of the present invention, the corbel web has a first side surface and a second side surface, and at least one of the first side surface and the second side surface is provided with the corbel peg.

Further, the corbel pegs are arranged perpendicular to the corbel web, the corbel pegs include a plurality of corbel pegs, and the plurality of corbel pegs are spaced apart in the up-down direction.

According to some embodiments of the present invention, the cross-section of the reinforced concrete beam is rectangular, and the depth of the upper-layer steel pipe column inserted into the transition node area does not exceed the height of the reinforced concrete beam in the up-down direction; The bottom of the upper-layer steel pipe column is located at the same horizontal position as the bottom of the corbel web.

Further, the lower-layer reinforced concrete column includes a plurality of column longitudinal bars, the plurality of column longitudinal bars are arranged at intervals along the axis direction surrounding the reinforced concrete column, and the column longitudinal bars are arranged on the nails of the steel pipe bolts. within the head range.

Further, when the diameter of the upper-layer steel pipe column is smaller than the diameter of the lower-layer reinforced concrete column, the column longitudinal bars are arranged on the outer side of the upper-layer steel pipe column, and at this time, the tops of the column longitudinal bars stop against each other. at the bottom of the corbel flange; when the diameter of the upper-layer steel pipe column is greater than the diameter of the lower-layer reinforced concrete column, the column longitudinal bars are arranged on the inner side of the upper-layer steel pipe column, at this time, the column The top of the longitudinal rib abuts against the bottom of the ring plate.

Optionally, the reinforced concrete beam includes an upper longitudinal bar and a lower longitudinal bar, the upper longitudinal bar and the lower longitudinal bar are parallel and spaced apart, the upper longitudinal bar is welded to the top of the corbel flange, and The inner ends of the upper longitudinal bars stop against the outer side walls of the upper-layer steel pipe columns, and the lower longitudinal bars pass through the lower-layer reinforced concrete columns and the reinforced concrete beams in the horizontal direction.

According to some embodiments of the present invention, the grouting hole is a circular hole or a polygonal hole, and the grouting hole is coaxial with the upper-layer steel pipe column; in the transition node area, the upper-layer steel pipe column is filled with predetermined The height of concrete, the predetermined height does not exceed the diameter of the upper steel tubular column.

According to the construction method of the transition node of the upper-layer steel pipe column and the lower-layer reinforced concrete column according to the second aspect of the present utility model, the construction method includes the following steps: S10: transport the steel components prefabricated in the factory to the construction site and install them in place; S20: Positioning the column longitudinal bars of the lower-layer reinforced concrete column, and binding the first steel bars of the lower-layer reinforced concrete column, the first steel bars surrounding the column longitudinal bars and including a plurality of longitudinal bars arranged at intervals in the longitudinal direction; S30: Bind the upper part of the reinforced concrete beam The longitudinal reinforcement is welded with the corbel flange, the lower longitudinal reinforcement of the reinforced concrete beam penetrates the reinforced concrete beam, and the second steel bar of the reinforced concrete beam is bound; S40: Support the formwork, pour concrete, and complete the construction.

Compared with the prior art, the utility model has the following advantages and outstanding effects: firstly, the conversion of the upper-layer steel pipe column and the lower-layer reinforced concrete column in the conversion node area is efficiently and quickly realized, and the traditional method of inserting the steel pipe under the construction is greatly optimized. Convenience and material saving. Second, the setting of steel corbels (such as T-shaped corbels, etc.) can effectively improve the reliability of the connection between the upper steel pipe column and the lower reinforced concrete column, and improve the strength and ductility of the transition joint. Third, indirect force transmission is adopted between the column longitudinal bars and the upper steel pipe column, which avoids the tedious construction caused by direct connection. Fourth, the upper-layer steel tube column has a constraining effect on the concrete in the core area of its node, which can significantly improve its mechanical performance.

Additional aspects and advantages of the invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

1 is a schematic diagram of a transition node between an upper-layer steel pipe column and a lower-layer reinforced concrete column according to an embodiment of the present invention, wherein the diameter of the upper-layer steel pipe column is smaller than the diameter of the lower-layer reinforced concrete column;

Fig. 2 is a sectional view along line I-I in Fig. 1;

Fig. 3 is a sectional view along line II-II in Fig. 1;

Fig. 4 is a sectional view along line III-III in Fig. 1;

5 is a schematic diagram of a transition node between an upper-layer steel pipe column and a lower-layer reinforced concrete column according to another embodiment of the present invention, wherein the diameter of the upper-layer steel pipe column is larger than the diameter of the lower-layer reinforced concrete column;

Fig. 6 is a sectional view along line I-I in Fig. 5;

Fig. 7 is a sectional view along line II-II in Fig. 5;

FIG. 8 is a cross-sectional view taken along line III-III in FIG. 5 .

Reference number:

The transition node 100 between the upper steel tubular column and the lower reinforced concrete column,

Upper steel pipe column 1, lower reinforced concrete column 2, reinforced concrete beam 3, ring plate 4, grouting hole 5, steel pipe bolt 6, T-shaped corbel 7, corbel flange 8, corbel web 9, corbel bolt Nail 10, column longitudinal reinforcement 11, upper longitudinal reinforcement 12, lower longitudinal reinforcement 13, concrete 14.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but should not be construed as a limitation of the present invention.

The transition node 100 of the upper-layer steel pipe column and the lower-layer reinforced concrete column according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

1 and 5, according to the first aspect of the present invention, the transition node 100 between the upper-layer steel pipe column and the lower-layer reinforced concrete column is the connection point between the upper-layer steel pipe column 1 and the lower-layer reinforced concrete column 2. The steel pipe column 1 and the lower layer reinforced concrete column 2 can be coaxially arranged, and the upper layer steel pipe column 1 is inserted into the transition node area, and the transition node area is connected with the reinforced concrete beam 3 along the horizontal direction. For example, the upper-layer steel pipe column 1 may extend in a vertical direction, and the horizontal direction is a direction perpendicular to the axial direction of the upper-layer steel pipe column 1. In the axial direction of the upper-layer steel pipe column 1, the top of the reinforced concrete beam 3 may be high At the top end of the transition node area, the bottom of the reinforced concrete beam 3 may be lower than the bottom end of the transition node area.

In the transition node area, the inner side of the upper-layer steel pipe column 1 can be welded with a ring plate 4, the ring plate 4 can be in the shape of a circular plate, and the ring plate 4 can be arranged around the axis direction of the upper-layer steel pipe column 1. A force is applied in the radial direction of the upper-layer steel pipe column 1 , and the ring plate 4 may be provided with a grouting hole 5 . Optionally, the ring plate 4 can be made of steel, and the grouting hole 5 can be a circular hole provided in the middle of the ring plate 4. Through the grouting hole 5, it is convenient to pour concrete into the transition node area, which is beneficial to improve the inner diameter of the transition node area. stress performance. Of course, in some optional examples of the present invention, the grouting hole 5 may be a polygonal hole or a special-shaped hole, etc. provided on the ring plate 4, and the present invention does not specifically limit the shape of the grouting hole 5. The shape can be adaptively set according to actual needs.

A steel pipe stud 6 is welded to at least one of the inner side and the outer side of the upper-layer steel pipe column 1 . For example, in some optional examples, steel pipe studs 6 may be welded on the inner side of the upper-layer steel pipe column 1; in some optional examples, steel pipe studs 6 may also be welded on the outer side of the upper-layer steel pipe column 1; In some optional examples, steel pipe studs 6 may also be welded on both the inner side and the outer side of the upper-layer steel pipe column 1 . Therefore, the steel pipe studs 6 help to ensure the reliability of the connection between the transition node area and the concrete.

In some embodiments of the present invention, as shown in FIGS. 1 and 5 , a T-shaped corbel 7 may be welded on the outer side of the upper-layer steel pipe column 1 ; wherein, the T-shaped corbel 7 includes: a corbel flange 8 , a corbel Leg webs 9 and corbel pegs 10 .

Specifically, the corbel flange 8 may extend in the horizontal direction; for example, the reinforced concrete beam 3 may extend in the horizontal direction as shown in FIG. 1 , and the corbel flange 8 may extend in the same direction as the reinforced concrete beam 3 . The corbel web 9 is provided at the bottom of the corbel flange 8 , and the corbel web 9 can extend downward; the corbel peg 10 is provided on the corbel web 9 . Therefore, by arranging the T-shaped corbels 7 in the transition node area, the reliability of the connection between the upper-layer steel pipe column 1 and the lower-layer reinforced concrete column 2 can be effectively improved, and the strength and ductility of the transition node can be improved.

For example, referring to FIGS. 3 and 7 , two T-shaped corbels 7 may be welded on the outer side of the upper-layer steel pipe column 1 . Balance the force, thereby helping to further improve the reliability of the connection between the upper-layer steel pipe column 1 and the lower-layer reinforced concrete column 2.

Among them, "bolt" belongs to a kind of fastener with high strength and rigidity connection, which is used in various steel structure projects and plays the role of rigid combination connection in different connectors.

According to the transition node 100 of the upper-layer steel pipe column and the lower-layer reinforced concrete column according to the embodiment of the present invention, a ring plate 4 is welded on the inner side of the upper layer steel pipe column 1, and the ring plate 4 is provided with a grouting hole 5, and the grouting hole 5 is convenient for Pouring concrete into the transition node area is beneficial to improve the mechanical performance in the transition node area. In addition, by welding the T-shaped corbels 7 on the outer side of the upper-layer steel pipe column 1, it is beneficial to improve the reliability of the connection between the upper-layer steel pipe column 1 and the lower-layer reinforced concrete column 2, and is beneficial to improve the strength and ductility of the transition joint.

As shown in FIG. 1 , according to some embodiments of the present invention, the corbel flange 8 and the ring plate 4 may be disposed opposite to each other in the radial direction of the upper-layer steel pipe column 1 . For example, in the radial direction of the upper steel pipe column 1, the corbel flange 8 and the ring plate 4 can be arranged opposite; in the axial direction of the upper layer steel pipe column 1, the ring plate 4 and the corbel flange 8 have the same height. Therefore, the ring plate 4 is beneficial to transfer the tensile force of the upper layer steel pipe column 1 in the radial direction, thereby helping to ensure the reliability of the connection between the upper layer steel pipe column 1 and the lower layer reinforced concrete column 2 .

The present invention is not limited to this, and in some optional embodiments, the corbel flange 8 and the ring plate 4 may also be staggered by a predetermined distance in the axial direction of the upper-layer steel pipe column 1 .

4 and 8 , according to some embodiments of the present invention, the corbel web 9 has a first side surface and a second side surface, and at least one of the first side surface and the second side surface is provided with a corbel peg 10 . Further, the corbel pegs 10 may be arranged perpendicular to the corbel web 9 , and the corbel pegs 10 include a plurality of corbel pegs 10 arranged at intervals in the up-down direction. For example, in some optional examples, the corbel peg 10 may be provided on the first side; in some optional examples, the corbel peg 10 may also be provided on the second side; in some optional examples, the corbel peg 10 may be provided on the second side. In an optional example, the corbel pegs 10 may also be provided on both the first side and the second side.

Referring to FIG. 4 in conjunction with FIG. 1 , according to some embodiments of the present invention, the cross-section of the reinforced concrete beam 3 may be rectangular (for example, a square), and the depth of the upper-layer steel pipe column 1 inserted into the transition node area does not exceed (for example, a square shape) less than or equal to) the height of the reinforced concrete beam 3 in the up-down direction. In this way, the bottom of the upper-layer steel pipe column 1 can be spaced apart from the inner bottom surface of the reinforced concrete beam 3, and the structure is reasonable. Optionally, the bottom of the upper-layer steel pipe column 1 and the bottom of the corbel web 9 may be located at the same horizontal position.

Further, referring to FIG. 3 and FIG. 7 , the lower-layer reinforced concrete column 2 may include a plurality of column longitudinal bars 11 , and the plurality of column longitudinal bars 11 may be arranged at intervals along the axial direction surrounding the reinforced concrete column 2 , and the column longitudinal bars 11 are arranged on the steel pipe. within the range of the nail head of the peg 6. Therefore, by arranging the column longitudinal bars 11 within the nail head range of the steel pipe stud 6 , it is favorable for better force transmission, thereby ensuring that the force of the upper-layer steel pipe column 1 is effectively transmitted to the column longitudinal bars 11 . In addition, the column longitudinal bars 11 and the upper-layer steel pipe column 1 adopt indirect force transmission, which avoids the complicated construction caused by direct connection and simplifies the construction process.

Further, referring to FIG. 1, when the diameter of the upper-layer steel pipe column 1 is smaller than the diameter of the lower-layer reinforced concrete column 2, the column longitudinal bars 11 are arranged on the outer side of the upper-layer steel pipe column 1, and at this time, the top of the column longitudinal bars 11 can be stopped. on the bottom of the corbel flange 8. 5 , when the diameter of the upper-layer steel pipe column 1 is larger than the diameter of the lower-layer reinforced concrete column 2, the column longitudinal bars 11 are arranged on the inner side of the upper-layer steel pipe column 1, and at this time, the top of the column longitudinal bars 11 can stop at all the bottom of the ring plate 4. Therefore, it is conducive to better force transmission, and can meet different construction requirements.

Optionally, referring to FIGS. 1 and 4 (or referring to FIGS. 5 and 8 ), the reinforced concrete beam 3 includes an upper longitudinal bar 12 and a lower longitudinal bar 13 , and the T-shaped corbel 7 may be located at the upper longitudinal bar 12 and the lower longitudinal bar 13 Between the longitudinal ribs 13, the upper longitudinal rib 12 and the lower longitudinal rib 13 are parallel and spaced apart, the upper longitudinal rib 12 is welded to the top of the corbel flange 8, and the inner end of the upper longitudinal rib 12 (for example, the upper longitudinal rib 12) The side adjacent to the centerline of the upper-layer steel pipe column 1 ) stops against the outer wall surface of the upper-layer steel pipe column 1 , and the lower longitudinal bars 13 pass through the lower-layer reinforced concrete column 2 and the reinforced concrete beam 3 in the horizontal direction. For example, there are gaps between the adjacent column longitudinal bars 11, the lower longitudinal bars 13 can pass through the gaps between the column longitudinal bars 11 on the lower reinforced concrete column 2 in the horizontal direction, and the lower longitudinal bars 13 can pass along the horizontal direction. The length may be equal to the length of the reinforced concrete beam 3 .

According to some embodiments of the present invention, referring to FIGS. 2 and 6 , the grouting hole 5 may be a circular hole or a polygonal hole, etc., and the grouting hole 5 and the upper steel pipe column 1 may be coaxial; for example, the axis of the grouting hole 5 and the upper steel pipe The axis of the column 1 can be coaxial; when the grouting hole 5 is a polygon, the axis of the grouting hole 5 can be the axis of the largest circumscribed circle or the smallest inscribed circle of the polygon, which is understandable to those skilled in the art .

In the transition node area, the interior of the upper-layer steel pipe column 1 is filled with concrete 14 of a predetermined height, and the predetermined height does not exceed the diameter of the upper-layer steel pipe column 1 . For example, the height at which the concrete 14 is poured inside the upper-layer steel pipe column 1 may be less than or equal to the diameter of the upper-layer steel pipe column 1 . Therefore, it is beneficial to save materials, and the upper-layer steel pipe column 1 has a constraining effect on the concrete in the transition node area, which can significantly improve its mechanical performance.

According to the construction method of the transition node between the upper-layer steel pipe column and the lower-layer reinforced concrete column according to the embodiment of the second aspect of the present invention, the method includes the following steps: S10: transporting the steel components prefabricated in the factory to the construction site and installing them in place; the The steel member includes all components except concrete; S20: Position the column longitudinal bars of the lower-layer reinforced concrete column, bind the first steel bars of the lower-layer reinforced concrete column, the first steel bars surround the column longitudinal bars, and the first The reinforcing bars may include a plurality of longitudinal bars arranged at intervals along the longitudinal direction; S30: Weld the upper longitudinal bars of the reinforced concrete beams with the corbel flanges, the lower longitudinal bars of the reinforced concrete beams penetrate the reinforced concrete beams, and bind the second reinforcing bars of the reinforced concrete beams; S40: Support formwork, pour concrete, and complete construction.

According to the construction method of the transition node between the upper-layer steel pipe column and the lower-layer reinforced concrete column according to the embodiment of the present invention, the structure is simple, the force is reasonable, and all the steel components can be prefabricated in the factory and assembled on site, which can effectively improve the bearing capacity of the transition node. and seismic performance.

The transition node 100 of the upper-layer steel pipe column 1 and the lower-layer reinforced concrete column 2 according to the embodiment of the present invention. The upper part of the conversion node is a steel pipe column, the bottom is a reinforced concrete column, and a reinforced concrete beam 3 is connected in the horizontal direction of the conversion node. A T-shaped corbel 7 is welded at the bottom of the upper-layer steel pipe column 1, and the upper-layer steel pipe column 1 and the T-shaped corbel 7 are inserted into the concrete in the transition node area. Steel pipe studs 6 are welded on the inner and outer sides of the upper-layer steel pipe column 1, and corbel studs 10 are arranged on the first side and the second side of the corbel web 9, which can ensure the reliability of the connection with the concrete. A ring plate 4 is arranged on the inner side of the upper-layer steel pipe column 1 to transmit the tensile force of the upper longitudinal bars 12 of the reinforced concrete beam 3, and the ring plate 4 is provided with a grouting hole 5 to facilitate the pouring of concrete. The upper longitudinal reinforcement 12 of the reinforced concrete beam 3 is welded to the corbel flange 8, and the lower longitudinal reinforcement 13 of the reinforced concrete beam 3 penetrates along the entire beam. The column longitudinal bars 11 of the lower layer reinforced concrete column 2 extend upward to the bottom of the corbel flange 8, and the column longitudinal bars 11 are arranged within the range of the nail head of the steel pipe bolt 6 to ensure that the force of the upper layer steel pipe column 1 is effectively transmitted to the bottom of the corbel flange 8. Column longitudinal ribs 11. Concrete 14 can be poured into the inner side of the part of the upper-layer steel pipe column 1 above the transition node area, so that the connection between the upper-layer steel pipe column 1 and the concrete 14 is more reliable. The upper steel pipe column 1, T-shaped corbel 7, ring plate 4 and studs (including steel pipe stud 6 and corbel stud 10) are all prefabricated in the factory. During construction, the upper steel pipe column 1 is hoisted in place, and the lower reinforced concrete is bound. Reinforcing the columns (such as the first rebar), then welding and binding the rebars (such as the second rebar) of the reinforced concrete beam, supporting the formwork, and pouring the concrete, thereby completing the construction of the joint. According to the transition node 100 of the upper-layer steel pipe column and the lower-layer reinforced concrete column according to the embodiment of the present invention, the mechanical performance is good, the structure is simple, the construction is convenient, and has significant technical and economic benefits.

Other structures and operations of the transition node 100 of the upper-layer steel pipe column and the lower-layer reinforced concrete column and the construction method according to the embodiment of the present invention are known to those of ordinary skill in the art, for example, those not mentioned in this application Regarding the structure or method of the transition node 100 and the construction method between the upper-layer steel tube column and the lower-layer reinforced concrete column, reference may be made to conventional methods, which will not be described in detail here.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Axial", "Radial", "Circumferential" The orientation or positional relationship indicated by "" etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so as to The specific orientation configuration and operation is therefore not to be construed as a limitation of the present invention.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc., is meant to incorporate the embodiments A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention. Variations, the scope of the present invention is defined by the claims and their equivalents.

Claims (9)

1. a conversion node (100) of an upper layer steel pipe column and a lower layer reinforced concrete column, the conversion node is the connection point of the upper layer steel pipe column (1) and the lower layer reinforced concrete column (2), it is characterized in that, The upper-layer steel pipe column (1) is inserted into the transition node area, the transition node area is connected with reinforced concrete beams (3) along the horizontal direction, and in the transition node area, the inner side of the upper-layer steel pipe column (1) is welded There is a ring plate (4), and the ring plate (4) is provided with grouting holes (5), and steel pipe bolts (6) are welded on at least one of the inner side and the outer side of the upper steel pipe column (1), A T-shaped corbel (7) is welded on the outer side of the upper-layer steel pipe column (1); Wherein, the T-shaped corbel (7) includes: a corbel flange (8), the corbel flange (8) extending in the horizontal direction; a corbel web (9) provided at the bottom of the corbel flange (8) and extending downward; and A corbel peg (10) is provided on the corbel web (9). 2. The transition node (100) between an upper-layer steel pipe column and a lower-layer reinforced concrete column according to claim 1, wherein the corbel flange (8) and the ring plate (4) are in the upper-layer steel pipe The columns (1) are arranged opposite in the radial direction. 3. The transition node (100) between an upper-layer steel pipe column and a lower-layer reinforced concrete column according to claim 1 or 2, wherein the corbel web (9) has a first side and a second side, and the At least one of the first side surface and the second side surface is provided with the corbel peg (10). 4. The transition node (100) between the upper-layer steel pipe column and the lower-layer reinforced concrete column according to claim 3, wherein the corbel stud (10) is arranged perpendicular to the corbel web (9), The corbel pegs (10) include a plurality of corbel pegs (10) that are spaced apart in the up-down direction. 5. The transition node (100) between an upper-layer steel pipe column and a lower-layer reinforced concrete column according to claim 3, wherein the cross-section of the reinforced concrete beam (3) is rectangular, and the upper-layer steel pipe column (1) The depth inserted into the transition node area does not exceed the height of the reinforced concrete beam (3) in the up-down direction; The bottom of the upper-layer steel pipe column (1) and the bottom of the corbel web (9) are located at the same horizontal position. 6. The transition node (100) between the upper-layer steel pipe column and the lower-layer reinforced concrete column according to claim 5, wherein the lower-layer reinforced concrete column (2) comprises a plurality of column longitudinal bars (11), the plurality of The column longitudinal bars (11) are arranged at intervals along the axial direction surrounding the reinforced concrete column (2), and the column longitudinal bars (11) are arranged within the range of the nail head of the steel pipe bolt (6). 7. The transition node (100) of the upper-layer steel pipe column and the lower-layer reinforced concrete column according to claim 6, characterized in that, When the diameter of the upper-layer steel pipe column (1) is smaller than the diameter of the lower-layer reinforced concrete column (2), the column longitudinal reinforcement (11) is arranged on the outer side of the upper-layer steel pipe column (1). The top of the column longitudinal rib (11) stops at the bottom of the corbel flange (8); When the diameter of the upper-layer steel pipe column (1) is larger than the diameter of the lower-layer reinforced concrete column (2), the column longitudinal reinforcement (11) is arranged on the inner side of the upper-layer steel pipe column (1). The top of the column longitudinal rib (11) abuts against the bottom of the ring plate (4). 8. The transition node (100) between an upper-layer steel tube column and a lower-layer reinforced concrete column according to claim 6, wherein the reinforced concrete beam (3) comprises an upper longitudinal reinforcement (12) and a lower longitudinal reinforcement (13) , the upper longitudinal rib (12) and the lower longitudinal rib (13) are parallel and spaced apart, the upper longitudinal rib (12) is welded to the top of the corbel flange (8), and the upper longitudinal rib The inner end of (12) stops against the outer wall surface of the upper-layer steel pipe column (1), and the lower longitudinal reinforcement (13) passes through the lower-layer reinforced concrete column (2) in the horizontal direction and penetrates through the reinforced concrete beam (3). 9. The transition node (100) between the upper-layer steel pipe column and the lower-layer reinforced concrete column according to claim 8, wherein the grouting hole (5) is a circular hole or a polygonal hole, and the grouting hole (5) is connected with the The upper-layer steel pipe column (1) is coaxial; In the transition node area, the interior of the upper-layer steel pipe column (1) is filled with concrete (14) of a predetermined height, and the predetermined height does not exceed the diameter of the upper-layer steel pipe column (1).

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