CN218757998U - Be applicable to circular steel core concrete column-shaped steel post conversion node structure - Google Patents
Be applicable to circular steel core concrete column-shaped steel post conversion node structure Download PDFInfo
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- CN218757998U CN218757998U CN202223161512.5U CN202223161512U CN218757998U CN 218757998 U CN218757998 U CN 218757998U CN 202223161512 U CN202223161512 U CN 202223161512U CN 218757998 U CN218757998 U CN 218757998U
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Abstract
The utility model belongs to the technical field of civil engineering structure, in particular to a conversion node structure suitable for a circular steel tube concrete column-section steel column, which comprises a steel tube concrete column and a steel rib column, wherein the steel tube concrete column comprises a steel tube column provided with a circular pouring hole in the middle; the steel pipe column is upwards raised to be above the plate top, and after concrete in the steel pipe column is poured to the beam top elevation, the steel pipe column is inserted into the steel pipe column from the top of the steel pipe column; the inner and outer sides of the steel pipe column are respectively provided with an inner reinforcing ring structure and an outer ring plate structure, a stiffening rib structure for reducing the concentrated stress in the steel pipe column is also arranged in the steel pipe column, and the stiffening rib structure is positioned below the steel pipe column; and a structural beam assembly is welded on the outer side of the conversion node structure along the horizontal direction. The utility model is suitable for an upper portion is shaped steel concrete column, lower part for steel core concrete column juncture node form, and the node atress is clear reasonable, and the construction is simple and convenient, can separately pour according to post cross-section form, reduces the construction degree of difficulty, guarantees to pour the quality.
Description
Technical Field
The utility model belongs to the technical field of civil engineering structure, concretely relates to be applicable to circular steel core concrete column-shaped steel post conversion node structure.
Background
With the development of modern construction in China, ultra-deep, ultra-high and ultra-large-span structures are increasing day by day, and in order to meet the requirements of building effects and stress forms, a large number of steel reinforced concrete columns and steel pipe concrete columns are applied to structural design, the steel reinforced concrete columns have the characteristics of high strength, good qualitative performance, good ductility and the like, and the steel pipe columns have the characteristics of high bearing capacity, good plasticity and ductility, high rigidity, convenient construction and the like.
However, the technical difficulty in the structural design and construction process is as follows: because the forms of the column structures are different, the stress and the construction convenience at the connecting joints of the columns in two different forms are greatly influenced. In the node design, both guarantee that the structure satisfies "strong node, weak component" atress demand, will satisfy simultaneously that the reinforcing bar is arranged evenly in the structure construction, and the concrete is easily pour requirements such as closely knit, has consequently designed high requirement to beam column node.
The significance of solving the technical problems is as follows: the design is one kind through optimizing beam column node structure for the node atress is simple, thereby reduces the construction degree of difficulty, guarantees the conversion node structure of upper portion reinforcing bar post and lower part steel-pipe column of pouring quality, has important demonstration meaning.
Disclosure of Invention
In order to the problem, the utility model provides a be applicable to circular steel core concrete column-shaped steel post conversion node structure specifically is for being applied to the conversion node structure of upper portion shaped steel concrete column and the circular steel core concrete column in lower part, is the structural style of reinforcing steel post, lower floor for the steel-pipe column to the upper strata, through the local optimization to the node form, reaches the optimization construction process, reduces the construction degree of difficulty, practices thrift the purpose of engineering cost.
The utility model discloses a solve the technical scheme who takes of this problem and be:
a conversion node structure suitable for a circular steel tube concrete column-section steel column comprises a steel tube concrete column and a steel rib column, wherein the steel tube concrete column comprises a steel tube column with a circular pouring hole in the middle;
the steel pipe column is upwards raised to be above the plate top, and after concrete in the steel pipe column is poured to the beam top elevation, the steel pipe column is inserted into the steel pipe column from the top of the steel pipe column;
the inner side and the outer side of the steel pipe column are respectively provided with an inner reinforcing ring structure and an outer ring plate structure, a stiffening rib structure for reducing the internal concentrated stress of the steel pipe column is also arranged in the steel pipe column, and the stiffening rib structure is positioned below the steel pipe column;
and a structural beam assembly is welded on the outer side of the conversion node structure along the horizontal direction.
Preferably, the inner stiffener structure includes:
the first inner reinforcing rings are of a circular ring structure and are welded and fixed on the inner wall of the steel pipe column along the circumferential direction of the steel pipe column;
the number of the second inner reinforcing rings is a plurality of, the second inner reinforcing rings are of annular cylindrical structures with circular pouring holes in the middle, and the second inner reinforcing rings are welded and fixed on the inner wall of the steel pipe column along the circumferential direction of the steel pipe column.
Preferably, the steel pipe column is divided into an upper steel pipe column, a middle steel pipe column and a lower steel pipe column from top to bottom, the first inner reinforcing ring is fixed in the upper steel pipe column and the lower steel pipe column, a plurality of upper column reinforcing steel bars extending along the axial direction of the upper steel pipe column are further arranged in the upper steel pipe column, all the upper column reinforcing steel bars are welded and fixed on the inner wall of the first inner reinforcing ring along the circumferential direction of the first inner reinforcing ring at intervals, and the second inner reinforcing ring is fixed in the middle steel pipe column.
Further preferably, the stiffener structure includes:
the first stiffening ribs are fixed at the upper end of the second inner reinforcing ring at the top, and all the first stiffening ribs are welded and fixed on the inner wall of the steel pipe column at intervals along the circumferential direction of the steel pipe column;
and the second stiffening ribs are fixed between the second inner reinforcing rings which are adjacent up and down, and all the second stiffening ribs are welded and fixed on the inner wall of the steel pipe column at intervals along the circumferential direction of the steel pipe column.
Further preferably, the structural beam assembly is connected with the concrete-filled steel tubular column in a mode of arranging a section steel bracket.
Further preferably, the structural beam assembly comprises beam section steels arranged in a cross shape and reinforcing steel bars orderly lapped around the beam section steels.
Further preferably, the first stiffening rib is of a right-angled trapezoidal plate structure, the inclined edge of the first stiffening rib faces the oblique upper part in the steel pipe column, and the first stiffening rib and the second stiffening rib are aligned with the beam-shaped steel web.
Preferably, the outer ring plate structure comprises a first outer ring plate welded on the outer wall of the steel pipe column and used for welding and fixing the beam profile steel and a second outer ring plate welded on the outer wall of the steel pipe column and used for welding and fixing the reinforcing steel, and the first outer ring plate and the second outer ring plate are both in a ring-column structure.
Preferably, the beam-shaped steel flange is connected with the first outer ring plate, and the second inner reinforcing ring is aligned with the beam-shaped steel flange.
Preferably, the steel reinforced column is composed of a plurality of T-shaped steel columns which are annularly arranged in an array mode by taking the intersecting edges as centers.
The utility model has the advantages and positive effects be:
1. the utility model is suitable for an upper portion is shaped steel concrete column, the lower part is steel core concrete column juncture node form, and the node atress is clear reasonable, and the construction is simple and convenient, and lower part node steel member construction is accomplished the back, and follow-up beam column reinforcing bar can accomplish reliably, convenient connection, moves two kinds of form post nodical points upward simultaneously, can effectively avoid the influence that the steel construction interval of post juncture closely arouses concrete placement mobility difference to the node quality.
2. The utility model discloses a node atress is simple, and the boundary is clear, can separately pour according to post cross-section form, reduces the construction degree of difficulty, guarantees to pour the quality.
3. The utility model discloses an add interior beaded finish structure, under the prerequisite of guaranteeing that the atress satisfies the requirements, the interior toggle pin of cancellation steel-pipe column provides enough space for the construction, reduces the construction degree of difficulty.
4. The utility model discloses an increase the stiffening rib structure, make the steel-pipe column internal stress obtain effective transmission, reduced because of the influence of concentrated stress to the structure post.
5. The utility model discloses an increase the outer loop plate structure, with the welding of reinforcing bar with the ring plate, cancel the reinforcing bar and perforate or in steel pipe column steel pipe wall department, when guaranteeing the reliable connection of beam column node, reduce and perforate or weld the damage of reinforcing bar connector to the steel pipe column on the steel pipe column. Short steel bars are welded through the ring plates, and steel bar connectors are reserved, so that convenience is provided for the steel bar lap joint of subsequent nodes.
6. The utility model discloses in, the conversion node structure outside is equipped with the structure beam assembly along the horizontal direction welding, and beam column node adopts shaped steel bracket to undertake beam-ends moment of flexure and shear force with the reinforcing bar jointly, through adopting the major diameter stirrup, reduces stirrup limb number, has optimized shaped steel bracket trompil quantity.
Drawings
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus are not intended to limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.
FIG. 1 is a plan view of a steel corbel;
FIG. 2 is an elevation view taken along the plane A-A in FIG. 1;
FIG. 3 is an elevation view taken along the plane B-B in FIG. 1;
FIG. 4 is a plan view of the junction of the steel pipe column and the section steel of FIG. 2 along the plane A1-A1;
FIG. 5 is a floor plan view taken along plane A2-A2 of FIG. 2;
FIG. 6 is a plan view of the steel pipe column of FIG. 2 taken along the plane A2-A2
FIG. 7 is a schematic structural view of a first stiffener;
FIG. 8 is a floor plan view taken along plane A3-A3 of FIG. 2;
FIG. 9 is a plan view of the steel pipe column of FIG. 2 taken along plane A3-A3;
FIG. 10 is a plan view of the steel pipe column and the inner reinforcement ring;
FIG. 11 is a cross-sectional view of FIG. 8 taken along the C3-C3 face beam end haunch;
FIG. 12 is a cross-sectional view of the beam of FIG. 8 taken along the line C4-C4;
FIG. 13 is a schematic view of a beam-shaped steel.
In the figure: 1-steel skeleton column; 2-steel pipe column; 3-a first inner stiffening ring; 4-a second inner stiffening ring; 5-upper column reinforcing steel bars; 6-a first stiffener; 7-a second stiffener; 8-beam section steel; 9-reinforcing steel bars; 10-a first outer ring plate; 11-second outer ring plate.
Detailed Description
First, it should be noted that the specific structures, features, advantages, etc. of the present invention will be described in detail below by way of example, but all the descriptions are only for illustrative purpose and should not be construed as forming any limitation to the present invention. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted", "disposed", "connected", "fixed", "screwed" and the like are to be understood broadly, and may be, for example, a fixed connection, a detachable connection, or an integral body; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations. The present invention will be described in detail with reference to fig. 1 to 5.
Example 1:
a conversion node structure suitable for a circular steel tube concrete column-section steel column comprises a steel tube concrete column and a steel rib column 1, wherein the steel tube concrete column comprises a steel tube column 2 with a circular pouring hole in the middle, and C55 self-compacting non-shrinking concrete is poured in the steel tube concrete column; the steel pipe column 2 is upwards raised to a position above the plate top, and after concrete in the steel pipe column 2 is poured to a beam top elevation, the steel pipe column 1 is inserted from the top of the steel pipe column 2; the inner side and the outer side of the steel pipe column 2 are respectively provided with an inner reinforcing ring structure and an outer ring plate structure, a stiffening rib structure for reducing the concentrated stress in the steel pipe column is further arranged in the steel pipe column 2, and the stiffening rib structure is positioned below the steel pipe column 1; and a structural beam assembly is welded on the outer side of the conversion node structure along the horizontal direction.
In this embodiment, the conversion node structure is mainly suitable for the joint form of the steel concrete column at the upper part and the steel pipe concrete column at the lower part. During the concrete construction: before construction, the steel pipe column 2, the steel reinforced column 1 and the steel corbel are manufactured in a factory, and the studs and the internal reinforcing ring structure are connected with the steel pipe column in the factory; when the node is constructed, firstly, the steel pipe column 2 is constructed, the section steel column 1 is positioned and inserted after the construction of the node at the lower part is completed, namely, the steel pipe column 2 at the lower part is upwards raised to be above a plate top, the extension length meets the insertion depth requirement of the steel pipe column 1, the steel pipe column 1 is inserted into the steel pipe column 2 after the concrete in the steel pipe column 2 is poured to the elevation of the beam top, and the pouring quality can be ensured by inserting the steel pipe column after the concrete in the steel pipe column is poured to the elevation of the beam top; after the node is implemented, the structural beam assembly is connected with the concrete-filled steel tubular column in a steel corbel arrangement mode.
The conversion node structure has the following technical characteristics:
1. the steel-pipe column inboard is equipped with interior beaded finish, through canceling interior blind rivet of steel-pipe column, adds interior beaded finish (diameter 28@ 500mm) and the reliable welding of steel-pipe column inner wall in the steel-pipe column, increases the steel-pipe column and concrete bond stress.
2. The steel-pipe column outside is equipped with outer loop plate structure, through increasing outer loop plate, with the reinforcing bar with outer loop plate welding, cancel the reinforcing bar and perforate or in steel-pipe column steel pipe wall department, when guaranteeing the reliable connection of beam column node, reduce the damage of perforation or welding reinforcing bar connector on the steel-pipe column to the steel-pipe column. The short steel bars are welded through the outer ring plates, and the steel bar connector is reserved, so that convenience is provided for the steel bar lap joint at the subsequent nodes.
3. Be equipped with the stiffening rib structure that is used for reducing concentrated stress in the steel-pipe column, stiffening rib structure is located under the reinforcing steel bar column to this embodiment is the example, through increasing 8 stiffening ribs under the reinforcing steel bar column, and the stiffening rib position aligns with beam-type steel web, reduces the influence of concentrated stress to the structural column.
4. The conversion node structure outside is equipped with the structure beam assembly along the horizontal direction welding, and beam column node adopts shaped steel corbel to undertake beam-ends moment of flexure and shear force with the reinforcing bar jointly, through adopting the major diameter stirrup, reduces the stirrup limb number, has optimized shaped steel corbel trompil quantity.
The conversion node structure has the following technical effects:
1. the node is simple in stress and clear in boundary, and can be separately poured according to the column section form, so that the construction difficulty is reduced, and the pouring quality is guaranteed.
2. Through addding interior strengthening ring structure, under the prerequisite of guaranteeing that the atress satisfies the requirement, cancel the interior blind rivet of steel-pipe column, provide enough space for the construction, reduce the construction degree of difficulty.
3. Through increasing the stiffening rib structure, make the steel-pipe column internal stress obtain effective transmission, reduced because of the influence of concentrated stress to the structure post.
4. Through increasing outer loop plate structure, with the welding of reinforcing bar with the loop plate, cancel the reinforcing bar and perforate or in steel pipe column steel pipe wall department, when guaranteeing the reliable connection of beam column node, reduce the damage of perforation or welding reinforcing bar connector on the steel pipe column to the steel pipe column. Short steel bars are welded through the ring plates, and steel bar connectors are reserved, so that convenience is provided for the steel bar lap joint of subsequent nodes.
5. After the steel pipe column and the steel rib column are separated, the problems of concrete pouring fluidity, quality defects and the like caused by node crossing are avoided.
Still further, it is also contemplated in this embodiment that the inner stiffener structure includes:
the number of the first inner reinforcing rings 3 is a plurality, the first inner reinforcing rings 3 are of a circular ring structure, and the first inner reinforcing rings 3 are welded and fixed on the inner wall of the steel pipe column 2 along the circumferential direction of the steel pipe column 2;
the number of the second inner reinforcing rings 4 is a plurality, the second inner reinforcing rings 4 are ring-cylindrical structures with circular pouring holes in the middle, and the second inner reinforcing rings 4 are welded and fixed on the inner wall of the steel pipe column 2 along the circumferential direction of the steel pipe column 2.
Furthermore, it can be considered in this embodiment that the steel pipe column 2 is divided into an upper steel pipe column, a middle steel pipe column and a lower steel pipe column from top to bottom, the first inner reinforcement ring 3 is fixed in the upper steel pipe column and the lower steel pipe column, a plurality of upper column steel bars 5 extending along the axial direction of the upper steel pipe column are further arranged in the upper steel pipe column, all the upper column steel bars 5 are welded and fixed on the inner wall of the first inner reinforcement ring 3 along the circumferential direction of the first inner reinforcement ring 3 at intervals, and the second inner reinforcement ring 4 is fixed in the middle steel pipe column.
Taking the embodiment as an example, three first inner reinforcing rings 3 are welded in the upper steel pipe column and the lower steel pipe column of the steel pipe column 2 respectively, the first inner reinforcing rings 3 are in a circular ring structure, the first inner reinforcing rings 3 are welded and fixed on the inner wall of the steel pipe column 2 along the circumferential direction of the steel pipe column 2, and a certain distance is reserved between every two first inner reinforcing rings 3; two second inner reinforcing rings 4 are welded in the middle of the steel pipe column 2, the second inner reinforcing rings 4 are circular cylindrical structures with pouring holes in the middle, the second inner reinforcing rings 4 are welded and fixed on the inner wall of the steel pipe column 2 along the circumferential direction of the steel pipe column 2, and a certain distance is arranged between the two second inner reinforcing rings 4 and the two second inner reinforcing rings are aligned with a beam-shaped steel flange. Through addding interior strengthening ring structure, under the prerequisite of guaranteeing that the atress satisfies the requirement, cancel the interior blind rivet of steel-pipe column, provide enough space for the construction, reduce the construction degree of difficulty.
Still further, it is also contemplated in this embodiment that the stiffener structure includes:
a plurality of first stiffening ribs 6, wherein the first stiffening ribs 6 are fixed at the upper end of the second inner reinforcing ring 4 at the top, and all the first stiffening ribs 6 are welded and fixed on the inner wall of the steel pipe column at intervals along the circumferential direction of the steel pipe column;
the number of the second stiffening ribs 7 is several, the second stiffening ribs 7 are fixed between the second inner reinforcing rings 4 which are adjacent up and down, and all the second stiffening ribs 7 are welded and fixed on the inner wall of the steel pipe column 2 at intervals along the circumferential direction of the steel pipe column 2.
Taking this embodiment as an example, 8 first stiffening ribs 6 are added under the steel reinforced column 1, 8 first stiffening ribs 6 are fixed on the upper end of the second inner reinforcing ring 4 at the top, all the first stiffening ribs 6 are welded and fixed on the inner wall of the steel reinforced column at intervals along the circumferential direction of the steel reinforced column, and the positions of the first stiffening ribs 6 are aligned with the beam-shaped steel web, which is helpful to reduce the influence of concentrated stress on the structural column; four second stiffening ribs 7 are additionally arranged between the upper and lower adjacent second inner reinforcing rings 4, all the second stiffening ribs 7 are welded and fixed on the inner wall of the steel pipe column 2 at intervals along the circumferential direction of the steel pipe column 2, and the positions of the second stiffening ribs 7 are aligned with the beam-shaped steel web. Through increasing the stiffening rib structure, make the steel-pipe column internal stress obtain effective transmission, reduced because of the influence of concentrated stress to the structure post.
Example 2:
the structural beam assembly is connected with the steel pipe concrete column in a mode of arranging the section steel corbels, the beam column nodes adopt the section steel corbels to share beam-end bending moment and shearing force with the steel bars, and the number of the hooped limbs is reduced by adopting the large-diameter hooped reinforcements, so that the number of holes formed in the section steel corbels is optimized.
Further, it is also contemplated in this embodiment that the structural beam assembly includes beam section steels 8 arranged in a cross shape and reinforcing bars 9 sequentially overlapping around the beam section steels 8.
Furthermore, in the present embodiment, it is also considered that the diameter of the reinforcing bar 9 is increased to optimize the punching arrangement. Through increase bar diameter, optimize and punch and arrange, reach and reduce shaped steel bracket trompil quantity, reduce the trompil to shaped steel bracket atress influence.
Further, still consider in this embodiment, first stiffening rib 6 is the right trapezoid plate structure, the hypotenuse of first stiffening rib 6 is towards the oblique top within the steel-pipe column 2, first stiffening rib 6, second stiffening rib 7 align with beam-type steel web, make the steel-pipe column internal stress obtain effective transmission, have reduced because of concentrating the influence of stress to the structure post.
Furthermore, it is also considered in this embodiment that the outer ring plate structure includes a first outer ring plate 10 welded to the outer wall of the steel pipe column 2 for welding the fixed beam-shaped steel 8 and a second outer ring plate 11 welded to the outer wall of the steel pipe column 2 for welding the fixed steel bars 9, and both the first outer ring plate 10 and the second outer ring plate 11 are of a ring-cylindrical structure.
Taking this embodiment as an example, increase twice first outer crown plate 10 and twice second outer crown plate 11 outside steel-pipe column 2, through increasing outer crown plate, outer crown plate thickness satisfies the atress demand, guarantee simultaneously that the disconnection reinforcing bar welds with reserving outer crown plate, the scene of the first row of reinforcing bar (inboard 6) and the two-sided welding of second outer crown plate, the second row reserves short steel bar (inboard 6 short steel bar) and the two-sided welding of second outer crown plate in the mill, weld length satisfies 5d, then weld to the steel-pipe column outer wall with the second outer crown plate together, through welding reinforcing bar with the crown plate, cancel the reinforcing bar perforation or at steel-pipe column steel pipe wall department, when guaranteeing beam column node reliable connection, reduce the damage of perforation or welding reinforcing bar connector on the steel-pipe column to the steel-pipe column. The short steel bars are welded through the ring plates, the steel bar connectors (6 steel bar connectors on the inner side of the second row) are reserved, and the on-site steel bars are connected with the short steel bar connectors, so that convenience is provided for the steel bar lap joint of the subsequent nodes.
Further, it is also contemplated in this embodiment that the beam-shaped steel flange is connected to the first outer ring plate 10, and the second inner reinforcement ring 4 is aligned with the beam-shaped steel 8 flange, i.e. the second inner reinforcement ring 4 and the first outer ring plate 10 are the same in number and are opposite inside to outside.
Furthermore, it can be considered in this embodiment that the steel reinforced column (section steel) 1 is composed of a plurality of T-shaped steel columns arranged in a circular array with intersecting sides as centers, as shown in fig. 4, the steel reinforced column is composed of 4T-shaped steel columns arranged in a circular array with intersecting sides as centers, and the strength is high.
The construction mode of the conversion node structure is as follows:
1. before construction, the steel pipe column, the steel rib column and the steel corbel are manufactured in a factory, and the studs and the inner reinforcing rings are connected with the steel pipe column in the factory.
2. When the node is constructed, the steel pipe column construction is firstly carried out, and the section steel column is positioned and inserted after the lower node construction is finished.
3. After the node structure is implemented, the structural beam is connected with the concrete-filled steel tubular column in a way of arranging a steel corbel; the welding seams of the steel pipe concrete column and the bracket joint are all full penetration primary welding seams, and measures for eliminating residual stress are taken after welding; the steel corbels (the parts inside the splicing seams) are connected with the concrete-filled steel tubular columns in a factory, and the steel corbels (the parts outside the splicing seams) are welded on site, so that the welding quality is not lower than the welding quality of the factory. The connector and the welding of the connector and the steel plate meet the requirement of fatigue performance; the bearing capacity of all welded joints should not be lower than that of the welded components.
3. The beam steel bars are connected with the connecting ring plate in a mode that the steel bars on the two sides of each row of part bypass the steel pipe column and the inner sides of the steel bars are welded; when the number of the steel bars is less than one row, the steel bars at two sides are firstly arranged (bypassing the steel pipe column), and then the middle steel bar is arranged (welded with the connecting ring plate). The length of the beam end stirrup encryption area is the full length of the bracket range of the section steel and twice the beam height (first-level earthquake resistance grade) outside the bracket range; three stirrups (only outer rectangular hoops) are respectively added at the position of the variable cross section of the beam and the position of the cut-off of the bracket of the section steel. The horizontal lacing wire should pass through the section steel web plate and be punched in a factory.
4. The concrete connection surfaces of the outer side of the steel tube concrete column and the structural beams, the plates and the ring beams are required to be provided with studs, and the concrete connection surfaces of the inner side of the steel tube concrete column and the concrete are required to be provided with anti-shearing reinforcing steel bar rings; the reinforcing ring is welded with the inner wall of the steel pipe. The protruding bracket and the concrete connection face are all required to be provided with studs. During processing, the steel bars of the structural beam, the plate and the ring beam are lofted, and the distance between the studs and the steel bars is properly adjusted at the collision part of the studs and the steel bars; the studs must be factory fabricated, and field welding is strictly prohibited.
5. The holes of the concrete-filled steel tubular column and the steel bracket are punched in a factory, so that the holes cannot be punched on site.
This technical scheme is mainly applicable to upper portion and is shaped steel concrete column, the lower part is steel core concrete column juncture node form, and the node atress is clear reasonable, and the construction is simple and convenient, and lower part node steel member construction is accomplished the back, and reliable, convenient connection can be accomplished to follow-up beam column reinforcing bar, moves on two kinds of forms post nodulation simultaneously, can effectively avoid post juncture steel construction interval to cause the influence of concrete placement mobility difference to the node quality excessively densely.
The above embodiments are described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (10)
1. The utility model provides a be applicable to circular steel core concrete column-shaped steel post conversion node structure, includes steel core concrete column and steel core post, the steel core concrete column sets up circular steel core post of pouring the hole including the centre, its characterized in that:
the steel pipe column is upwards raised to a position above the plate top, and after concrete in the steel pipe column is poured to a beam top elevation, a steel rib column is inserted from the top of the steel pipe column;
the inner side and the outer side of the steel pipe column are respectively provided with an inner reinforcing ring structure and an outer ring plate structure, a stiffening rib structure for reducing the internal concentrated stress of the steel pipe column is also arranged in the steel pipe column, and the stiffening rib structure is positioned below the steel pipe column;
and a structural beam assembly is welded on the outer side of the conversion node structure along the horizontal direction.
2. The transformation node structure suitable for the circular concrete filled steel tubular column and the section steel column according to claim 1, wherein: the inner stiffener structure includes:
the number of the first inner reinforcing rings is a plurality, the first inner reinforcing rings are of circular ring structures, and the first inner reinforcing rings are welded and fixed on the inner wall of the steel pipe column along the circumferential direction of the steel pipe column;
the number of the second inner reinforcing rings is a plurality of, the second inner reinforcing rings are of annular cylindrical structures with circular pouring holes in the middle, and the second inner reinforcing rings are welded and fixed on the inner wall of the steel pipe column along the circumferential direction of the steel pipe column.
3. The concrete filled steel tubular column-section steel column conversion node structure as claimed in claim 2, wherein: the steel pipe column comprises an upper steel pipe column, a middle steel pipe column and a lower steel pipe column, the first inner reinforcing ring is fixed in the upper steel pipe column and the lower steel pipe column, a plurality of upper column reinforcing steel bars extending along the axial direction of the upper steel pipe column are further arranged in the upper steel pipe column, all the upper column reinforcing steel bars are welded and fixed on the inner wall of the first inner reinforcing ring at intervals along the circumferential direction of the first inner reinforcing ring, and the second inner reinforcing ring is fixed in the middle steel pipe column.
4. The round concrete filled steel tubular column-section steel column conversion node structure as claimed in claim 3, wherein: the stiffener structure includes:
the first stiffening ribs are fixed at the upper end of the second inner reinforcing ring at the top, and all the first stiffening ribs are welded and fixed on the inner wall of the steel pipe column at intervals along the circumferential direction of the steel pipe column;
and the second stiffening ribs are fixed between the second inner reinforcing rings which are adjacent up and down, and all the second stiffening ribs are welded and fixed on the inner wall of the steel pipe column at intervals along the circumferential direction of the steel pipe column.
5. The round concrete filled steel tubular column-section steel column conversion node structure according to claim 4, wherein: the structural beam assembly is connected with the steel tube concrete column in a mode of arranging a profile steel bracket.
6. The round concrete filled steel tubular column-section steel column conversion node structure according to claim 4, wherein: the structural beam assembly comprises beam section steel arranged in a cross shape and reinforcing steel bars orderly lapped around the beam section steel.
7. The round concrete filled steel tubular column-section steel column conversion node structure as claimed in claim 6, wherein: first stiffening rib is right trapezoid plate structure, the hypotenuse of first stiffening rib is towards the oblique top within the steel-pipe column, first stiffening rib, second stiffening rib align with beam-type steel web.
8. The round concrete filled steel tubular column-section steel column conversion node structure as claimed in claim 6, wherein: the outer ring plate structure comprises a first outer ring plate and a second outer ring plate, wherein the first outer ring plate is welded on the outer wall of the steel pipe column and used for welding and fixing the beam profile steel, the second outer ring plate is welded on the outer wall of the steel pipe column and used for welding and fixing the reinforcing steel bars, and the first outer ring plate and the second outer ring plate are both of annular column structures.
9. The round concrete filled steel tubular column-section steel column conversion node structure according to claim 8, wherein: the beam-shaped steel flange is connected with the first outer ring plate, and the second inner reinforcing ring is aligned with the beam-shaped steel flange.
10. The concrete filled steel tubular column-section steel column conversion node structure as claimed in claim 1, wherein: the steel skeleton column is composed of a plurality of T-shaped steel columns which are annularly arranged in an array mode by taking the intersecting edges as centers.
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| CN202223161512.5U CN218757998U (en) | 2022-11-28 | 2022-11-28 | Be applicable to circular steel core concrete column-shaped steel post conversion node structure |
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| CN202223161512.5U CN218757998U (en) | 2022-11-28 | 2022-11-28 | Be applicable to circular steel core concrete column-shaped steel post conversion node structure |
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| CN (1) | CN218757998U (en) |
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2022
- 2022-11-28 CN CN202223161512.5U patent/CN218757998U/en active Active
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