CN107035002B - Beam column node structure with continuous bending moment and mutually hinged beam columns in building structure - Google Patents
Beam column node structure with continuous bending moment and mutually hinged beam columns in building structure Download PDFInfo
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- CN107035002B CN107035002B CN201710281350.3A CN201710281350A CN107035002B CN 107035002 B CN107035002 B CN 107035002B CN 201710281350 A CN201710281350 A CN 201710281350A CN 107035002 B CN107035002 B CN 107035002B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
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Abstract
The invention discloses a beam column node structure with a continuous bending moment, which comprises a column and a beam, wherein the column is a steel tube concrete column and comprises a circular steel tube and steel tube concrete poured in the steel tube, the outer tube wall of the steel tube is radially provided with a circle of annular bottom sealing annular steel plate, the outer tube wall of the steel tube is also provided with a plurality of vertical shearing ribs, the shearing ribs are fixedly connected with the upper surface of the bottom sealing annular steel plate, the beam comprises a floor reinforced concrete straight beam and a reinforced concrete annular beam, the reinforced concrete annular beam is sleeved with the steel tube concrete column, the reinforced concrete annular beam is supported on the bottom sealing annular steel plate and fixedly connected with the shearing ribs, and a gap S is reserved between the reinforced concrete annular beam and the outer tube wall of the steel tube. The beam column node structure can simultaneously ensure a stress mode of rigid connection of the beam end and no bending moment of the column end.
Description
Technical Field
The invention relates to a node structure in a building structure, in particular to a beam column node structure with mutually hinged beam columns and continuous bending moment in the building structure.
Background
The beam column node structure is an indispensable structural member in the building structure. The node structure of the reinforced concrete beam and the reinforced concrete column in the existing building structure is shown in fig. 1 and 2, and comprises a reinforced concrete column 102 and a floor reinforced concrete beam 101, wherein the reinforced concrete column 102 consists of a round steel tube and reinforced concrete poured in the steel tube, and the reinforced concrete column 102 and the floor reinforced concrete beam 101 are connected through a horizontal annular plate 103 and a steel bracket 104.
Aiming at the situations of large span of floors and heavy load floors in actual engineering, the concrete beam and the concrete filled steel tube column generally adopt rigid connection nodes. By adopting the node, the beam end rigid connection can be ensured, so that the midspan bending moment of the beam is reduced. However, the beam-support bending moment will be transmitted to the column end, resulting in an excessive column end bending moment and thus an excessive column cross section.
Disclosure of Invention
The invention aims to provide a beam column node structure with continuous bending moment, wherein beams and columns in a building structure are hinged, and a stress mode of rigid connection of beam ends and no bending moment of column ends can be ensured at the same time.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a beam column node structure that beam column is articulated and moment of bending is continuous each other in the building structure, includes post and roof beam, the post is the steel pipe concrete column, including circular steel pipe and the steel pipe concrete of pouring in the steel pipe, its characterized in that: the outer tube wall of steel pipe radially sets up round annular back cover ring steel sheet, the outer tube wall of steel pipe still evenly is provided with a plurality of vertical shearing ribs in the top that is located the annular steel sheet of back cover, shearing rib and the upper surface stationary phase of annular steel sheet of back cover are connected, the roof beam includes floor reinforced concrete straight beam and reinforced concrete ring beam, reinforced concrete ring beam suit the steel pipe concrete column, reinforced concrete ring beam holds in the annular steel sheet of back cover to be connected with shearing rib stationary phase, reinforced concrete ring beam has the center round hole, has clearance S between the pore wall of center round hole and the outer tube wall of steel pipe.
The beam and column in the beam and column joint structure are hinged and have continuous bending moment, and particularly, the situation that the bending moment of the beam end of a large-span heavy-load floor is overlarge and the bending moment of the column end is overlarge is caused, so that a stress mode of rigid connection of the beam end and no bending moment of the column end can be ensured.
Under the action of vertical load, the support bending moment of the floor beam can be transmitted to the floor beam of the adjacent span through the node, but not to the frame column. Meanwhile, the floor beam can provide lateral constraint for the frame column through the node so as to ensure the stability of the frame column. By arranging the beam column node, the frame column only bears vertical load, so that the bearing capacity of column axial pressure can be fully utilized, unnecessary beam end bending moment is avoided, and the optimal effect of column section can be ensured.
In the invention, two circles of annular stiffening ring ribs are radially arranged on the inner pipe wall of the steel pipe, the two circles of stiffening ring ribs are arranged in an upper layer and a lower layer, and connecting ribs which are vertically arranged are also connected between the two circles of stiffening ring ribs, and the steel pipe concrete and the stiffening ring ribs are cast into a whole in the casting molding process.
In the invention, the bottom sealing annular steel plate is welded on the outer pipe wall of the steel pipe, and the shearing rib is welded on the outer pipe wall of the steel pipe and is welded with the upper surface of the bottom sealing annular steel plate.
In the invention, the plurality of shearing ribs have the same structure and are arranged at the same height, the shearing ribs are right trapezoid ribs with the upper part being small and the lower part being large, the right-angle sides of the right trapezoid ribs are welded with the outer pipe wall of the steel pipe, and the height H of the right trapezoid ribs is mm.
In the present invention, the gap S is 50 to 100mm.
In the invention, the gap S is filled with a flexible material.
In the invention, the reinforced concrete straight beam and the reinforced concrete ring beam of the floor are integrally formed.
The beam column node structure can simultaneously ensure a stress mode of rigid connection of the beam end and no bending moment of the column end. By arranging the beam column node, the frame column only bears vertical load and does not bear beam end bending moment, so that the bearing capacity of column axial pressure can be fully utilized, unnecessary beam end bending moment is avoided, and the optimal effect of the column section can be ensured.
Compared with the common beam column node, the beam column node structure has the following remarkable effects:
(1) In the beam column node structure, the gap S between the reinforced concrete ring beam and the steel tube concrete column can ensure that the end bending moment of the reinforced concrete straight beam of the floor is transmitted to the reinforced concrete straight beam of the floor of the adjacent span, but not to the steel tube concrete column, and can ensure that the steel tube concrete column only bears vertical axial force.
(2) In the beam column node structure, the vertical loads of the floor reinforced concrete straight beam and the reinforced concrete annular beam can be transmitted to the steel pipe concrete column through the bottom sealing annular steel plate and the shearing rib, and meanwhile, the floor reinforced concrete straight beam and the reinforced concrete annular beam can provide lateral constraint for the steel pipe concrete column, so that the stability of the steel pipe concrete column is ensured.
(3) Aiming at the situation that the bending moment of the beam end of a large-span heavy-load floor is overlarge, the beam-column node structure can ensure a stress mode that the beam end is just connected and the column end is free of bending moment, reduce the section specification of the column and achieve the optimal building effect.
Drawings
The invention is described in further detail below with reference to the drawings and the detailed description.
FIG. 1 is a cross-sectional view of a conventional joint of a reinforced concrete beam and a concrete-filled steel tubular column in a conventional building structure;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a view showing the use of a beam-column joint structure with continuous bending moment, in which beams and columns are hinged to each other in the building structure according to the present invention;
FIG. 4 is a schematic view of the overall structure of a beam-column joint structure with continuous bending moment in which beams and columns are hinged to each other in the building structure according to the present invention;
FIG. 5 is an exploded view of FIG. 4;
FIG. 6 is a cross-sectional view of a beam-column joint structure with continuous bending moment in which beams and columns are hinged to each other in the building structure of the present invention;
fig. 7 is a sectional view of fig. 6B-B.
Description of the reference numerals
1-floor reinforced concrete straight beam, 2-reinforced concrete ring beam, 3-steel tube concrete column, 31-steel tube,
32-steel pipe concrete, 33-stiffening ring ribs, 34-connecting ribs, 4-back cover ring-shaped steel plates,
5-shearing rib, 101-floor reinforced concrete beam, 102-steel tube concrete column,
103-horizontal annular plates, 104-steel corbels and 6-flexible materials.
Detailed Description
The beam-column joint structure with the continuous bending moment, in which the beams and columns are hinged with each other, as shown in fig. 3 to 7, comprises a column and a beam, wherein the beams and columns in the beam-column joint structure are hinged with each other and the bending moment is continuous.
The column is steel tube concrete column 3, including circular steel tube 31 and pouring the steel tube concrete 32 in steel tube 31, the outer tube wall of steel tube 31 is along radial welding round annular back cover ring steel sheet 4, the outer tube wall of steel tube 31 is still evenly provided with a plurality of vertical shearing ribs 5 in the top that is located annular back cover ring steel sheet 4, a plurality of shearing ribs 5 structure are the same, the equal altitude setting, shearing rib 5 is big-end-up's right trapezoid rib, right angle side of right angle trapezoid rib welds with the outer tube wall of steel tube mutually, right angle trapezoid rib's height H is determined according to the atress condition, say 300mm, every shearing rib 5 all with the fixed welding of the upper surface of back cover ring steel sheet 4.
The beam comprises a floor reinforced concrete straight beam 1 and a reinforced concrete ring beam 2, wherein the floor reinforced concrete straight beam 1 and the reinforced concrete ring beam 2 are integrally formed, the reinforced concrete ring beam 2 is sleeved with a steel tube concrete column 3, the reinforced concrete ring beam 2 is supported on a bottom sealing annular steel plate 4 and fixedly connected with a shearing rib 5, and the reinforced concrete ring beam 2 and the shearing rib 5 are integrally cast and formed to realize fixed connection between the two.
In this embodiment, the vertical load of the floor reinforced concrete straight beam 1, the reinforced concrete annular beam 2 can be transferred to the steel pipe concrete column 3 through the bottom sealing annular steel plate 4, the shearing rib 5, and the floor reinforced concrete straight beam 1, the reinforced concrete annular beam 2 can provide lateral constraint for the steel pipe concrete column 3 simultaneously, thereby guaranteeing the stability of the steel pipe concrete column 3.
The reinforced concrete ring beam 2 is provided with a central round hole, a gap S of 80mm is formed between the hole wall of the central round hole and the outer pipe wall of the steel pipe 31, a flexible material 6 is filled in the gap S, the flexible material 6 is plastic, textiles such as cotton and hemp can be adopted, and the gap S can be valued within the range of 50-100 mm. The gap S can ensure that the end bending moment of the floor reinforced concrete straight beam 1 is transmitted to the floor reinforced concrete straight beam 1 of the adjacent span, but is not transmitted to the steel tube concrete column 3, and can ensure that the steel tube concrete column 3 only bears vertical axial force.
In this embodiment, two circles of annular stiffening ring ribs 33 are radially arranged on the inner pipe wall of the steel pipe 31, the two circles of stiffening ring ribs 33 are arranged in an upper layer and a lower layer, and vertically arranged connecting ribs 34 are further connected between the two circles of stiffening ring ribs 33, and the steel pipe concrete 32 and the stiffening ring ribs 33 are cast into a whole in the casting molding process.
In this embodiment, the beams in the beam-column node structure include four-directional floor reinforced concrete straight beams 1 located at the periphery and four-directional reinforced concrete ring beams 2 located at the middle, the four-directional floor reinforced concrete straight beams 1 are just connected through the reinforced concrete ring beams 2, and the end bending moment of the floor reinforced concrete straight beams 1 can be transmitted to the adjacent-span floor reinforced concrete straight beams 1 through the reinforced concrete ring beams 2.
The bottom sealing annular steel plate 4, the shearing rib 5 and the steel tube concrete column 3 are connected through welding, a gap S is reserved between the inner side of the reinforced concrete annular beam 2 and the outer wall of the steel tube concrete column 3, and the reinforced concrete annular beam 2 is placed on the shearing rib 5.
The force transmission path of the beam column node structure is as follows:
(1) The bending moment of the end of the reinforced concrete straight beam 1 can be transmitted to the reinforced concrete straight beam 1 of the adjacent span through the reinforced concrete annular beam 2, but not to the steel tube concrete column 3.
(2) The vertical load of the reinforced concrete straight beam 1 and the reinforced concrete annular beam 2 of the floor is transferred to the steel tube concrete column 3 through the bottom sealing annular steel plate 4 and the shearing rib 5, and the steel tube concrete column 3 only bears the vertical axial force.
The above-mentioned embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and all kinds of modifications, substitutions or alterations made to the above-mentioned structures of the present invention according to the above-mentioned general knowledge and conventional means of the art without departing from the basic technical ideas of the present invention shall fall within the scope of the present invention.
Claims (8)
1. Beam column is articulated and continuous beam column node structure of moment each other in building structure, including post and roof beam, the post is steel core concrete column (3), including circular steel pipe (31) and pour steel core concrete (32) in steel pipe (31), its characterized in that: the outer tube wall of steel pipe (31) radially sets up annular back cover annular steel sheet (4), the outer tube wall of steel pipe (31) still evenly is provided with a plurality of vertical shearing rib (5) in the top that is located back cover annular steel sheet (4), shearing rib (5) are connected with the upper surface stationary phase of back cover annular steel sheet (4), the roof beam includes floor reinforced concrete straight beam (1) and reinforced concrete annular beam (2), reinforced concrete annular beam (2) suit steel pipe concrete column (3), reinforced concrete annular beam (2) bearing be in back cover annular steel sheet (4) on to be connected with shearing rib (5) stationary phase, reinforced concrete annular beam (2) have central round hole, have clearance S between the pore wall of central round hole and the outer tube wall of steel pipe (31).
2. The beam-column joint structure of claim 1, wherein the beams and columns are hinged to each other and the bending moment is continuous, and the structure is characterized in that: the inner pipe wall of the steel pipe (31) is radially provided with two circles of annular stiffening ring ribs (33), the two circles of stiffening ring ribs (33) are arranged in an upper layer and a lower layer, connecting ribs (34) which are vertically arranged are further connected between the two circles of stiffening ring ribs (33), and the steel pipe concrete (32) and the stiffening ring ribs (33) are cast into a whole in the casting molding process.
3. The beam-column joint structure of claim 1, wherein the beams and columns are hinged to each other and the bending moment is continuous, and the structure is characterized in that: the bottom sealing annular steel plate (4) is welded on the outer pipe wall of the steel pipe (31), and the shearing rib (5) is welded on the outer pipe wall of the steel pipe (31) and is welded with the upper surface of the bottom sealing annular steel plate (4).
4. The beam-column joint structure of claim 1, wherein the beams and columns are hinged to each other and the bending moment is continuous, and the structure is characterized in that: the structure of the shearing ribs (5) is the same, the shearing ribs (5) are right trapezoid ribs with the upper part being small and the lower part being large, the right angle sides of the right trapezoid ribs are welded with the outer pipe wall of the steel pipe, and the height H of the right trapezoid ribs is 300mm.
5. A beam-column joint structure according to any one of claims 1 to 4, wherein the beams and columns are hinged to each other and the bending moment is continuous, wherein: the gap S is 50-100 mm.
6. The beam-column joint structure with continuous bending moment for the beam-column joint structure which is hinged with each other in the building structure according to claim 5, wherein: the gap S is filled with a flexible material (6).
7. The beam-column joint structure of claim 1, wherein the beams and columns are hinged to each other and the bending moment is continuous, and the structure is characterized in that: the reinforced concrete straight beam (1) and the reinforced concrete ring beam (2) of the floor are integrally formed.
8. The beam-column joint structure of claim 1, wherein the beams and columns are hinged to each other and the bending moment is continuous, and the structure is characterized in that: the reinforced concrete ring beam (2) and the shearing rib (5) are integrally cast and formed, so that the fixed connection between the reinforced concrete ring beam and the shearing rib is realized.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710281350.3A CN107035002B (en) | 2017-04-26 | 2017-04-26 | Beam column node structure with continuous bending moment and mutually hinged beam columns in building structure |
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| CN201710281350.3A CN107035002B (en) | 2017-04-26 | 2017-04-26 | Beam column node structure with continuous bending moment and mutually hinged beam columns in building structure |
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| CN107035002A CN107035002A (en) | 2017-08-11 |
| CN107035002B true CN107035002B (en) | 2023-06-20 |
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Citations (6)
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| JPH084111A (en) * | 1994-06-15 | 1996-01-09 | Shimizu Corp | Structure for column/beam connection |
| CN101775844A (en) * | 2010-02-02 | 2010-07-14 | 华东建筑设计研究院有限公司 | Connecting joint of ring beam of steel core concrete column used for topdown construction method foundation pit engineering |
| CN201722786U (en) * | 2010-07-02 | 2011-01-26 | 长安大学 | Compound steel tube concrete outer steel tube-disconnection ring beam node |
| CN103866868A (en) * | 2014-02-21 | 2014-06-18 | 同济大学 | Beam post steel ring hinging section point |
| JP2015021254A (en) * | 2013-07-17 | 2015-02-02 | 株式会社竹中工務店 | Column-beam structure |
| CN206916959U (en) * | 2017-04-26 | 2018-01-23 | 广东省建筑设计研究院 | Building structure beam-column is hinged and the continuous beam-column node structure of moment of flexure each other |
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2017
- 2017-04-26 CN CN201710281350.3A patent/CN107035002B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH084111A (en) * | 1994-06-15 | 1996-01-09 | Shimizu Corp | Structure for column/beam connection |
| CN101775844A (en) * | 2010-02-02 | 2010-07-14 | 华东建筑设计研究院有限公司 | Connecting joint of ring beam of steel core concrete column used for topdown construction method foundation pit engineering |
| CN201722786U (en) * | 2010-07-02 | 2011-01-26 | 长安大学 | Compound steel tube concrete outer steel tube-disconnection ring beam node |
| JP2015021254A (en) * | 2013-07-17 | 2015-02-02 | 株式会社竹中工務店 | Column-beam structure |
| CN103866868A (en) * | 2014-02-21 | 2014-06-18 | 同济大学 | Beam post steel ring hinging section point |
| CN206916959U (en) * | 2017-04-26 | 2018-01-23 | 广东省建筑设计研究院 | Building structure beam-column is hinged and the continuous beam-column node structure of moment of flexure each other |
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| Title |
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| 刘士润 ; 司炳君 ; .钢管混凝土柱-钢筋混凝土梁节点及受力特点.建筑结构学报.2008,(第S1期),全文. * |
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