CN115710978A - Rectangular concrete-filled steel tube column-reinforced concrete transfer beam node and arrangement method thereof - Google Patents
Rectangular concrete-filled steel tube column-reinforced concrete transfer beam node and arrangement method thereof Download PDFInfo
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- CN115710978A CN115710978A CN202211163630.1A CN202211163630A CN115710978A CN 115710978 A CN115710978 A CN 115710978A CN 202211163630 A CN202211163630 A CN 202211163630A CN 115710978 A CN115710978 A CN 115710978A
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Abstract
The invention discloses a rectangular concrete filled steel tube column-reinforced concrete conversion beam node and an arrangement method thereof, wherein the node comprises a steel supporting plate arranged between a rectangular concrete filled steel tube column and a reinforced concrete conversion beam, stiffening ribs below the supporting plate, a primary mechanical joint on the supporting plate and column inserting ribs; the steel supporting plate is welded on the periphery of the outer edge of the top of the rectangular steel pipe column and fixedly connected to the steel pipe through the stiffening ribs, the primary mechanical joint is vertically welded on the steel supporting plate, and the inner inserted ribs of the mechanical joint serve as column longitudinal ribs within the height range of the reinforced concrete conversion beam. In the structural arrangement, the steel pipe does not extend into the position where the steel bar is arranged in the conversion beam, so that the beam longitudinal bar can freely cross the column position; the steel supporting plate is added on the top of the steel column, so that the shearing resistance and bearing capacity of the side beam end of the column are improved; column longitudinal ribs are arranged on the steel supporting plate to form a large-size concrete column, so that the bending resistance of the column in the node area is ensured, and the beam-column node is close to rigid connection; and enough primary mechanical joints are welded on the steel plate, so that the insertion operation of the column longitudinal ribs is facilitated.
Description
Technical Field
The invention relates to the field of constructional engineering, in particular to a rectangular concrete filled steel tube column-reinforced concrete transfer beam node and an arrangement method thereof.
Background
The conversion layer is a structural style among the building engineering, and along with the construction development in city, the demand of many buildings is to multi-functional development for some building service function change along high-rise vertical, thereby can appear the discrete problem of vertical structure, consequently, need add the conversion architecture in the middle of the discontinuous structure. Currently, the most widely used is the beam type conversion structure; in addition, the rectangular steel tube concrete column is often used for frame struts because of high axial bearing capacity, good ductility, material conservation and convenient construction, and the conversion beam is often a reinforced concrete beam or a steel reinforced concrete beam with a larger cross section because of large stress.
In order to ensure the node rigid connection of the beam type conversion structure, the method is that the rectangular steel tube concrete column enters the conversion beam, so that orthogonal beam ribs conflict with the rectangular steel tube concrete column, beam longitudinal ribs are difficult to anchor, the stress on the conversion beam is extremely unfavorable, and if a large number of welding anchors are adopted, the site construction is inconvenient, the construction period is long, and the site welding quality is difficult to ensure; if the rectangular concrete-filled steel tube column does not enter the beam at all and the reinforcement cage is only added in the rectangular concrete-filled steel tube column, the bending resistance of the column head reinforced concrete is much weaker than that of the concrete-filled steel tube column, and the seismic requirement of the strong column and the weak beam at the conversion node can not be met.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a rectangular concrete-filled steel tube column-reinforced concrete conversion beam node which meets the requirement of force transfer and is convenient for construction, and the steel tube does not extend into the position of a steel bar arranged in the conversion beam in the structural arrangement of the invention, thereby ensuring that the longitudinal bar of the beam can freely cross the column position; the steel supporting plate is added on the top of the steel column, so that the shearing resistance and bearing capacity of the side beam end of the column are improved; column longitudinal ribs are arranged on the steel supporting plate to form a large-size concrete column, so that the bending resistance of the column in a node area is ensured, and the beam-column node is close to rigid connection; and enough primary mechanical joints are welded on the steel plate, so that the insertion operation of the column longitudinal ribs is facilitated.
The invention also aims to provide a method for arranging the rectangular concrete-filled steel tube column-reinforced concrete conversion beam node.
The purpose of the invention is realized by the following technical scheme:
the rectangular concrete filled steel tube column-reinforced concrete conversion beam node comprises a steel supporting plate arranged between the rectangular concrete filled steel tube column and the reinforced concrete conversion beam and a plurality of primary mechanical joints welded on the steel supporting plate; the steel supporting plate is welded on the periphery of the outer edge of the top of the rectangular concrete filled steel tube column, the primary mechanical joint is vertically welded on the steel supporting plate, and column longitudinal ribs which are interpenetrated and anchored in the reinforced concrete conversion beam are arranged on the joint.
Preferably, a plurality of stiffening ribs are welded between the lower part of the steel supporting plate and the rectangular concrete-filled steel tube column.
Preferably, an inner lining pipe with a preset thickness is welded on the inner edge of the top of the rectangular concrete-filled steel tube column.
Preferably, a plurality of stirrup ties are arranged around the longitudinal bars of the column.
Preferably, a plurality of one-level mechanical joint sets up according to regular interval, and is no less than actual post indulges muscle quantity.
Preferably, the width of the steel supporting plate is determined according to calculation, and the requirement of the bending resistance bearing capacity of the reinforced concrete column within the height range of the reinforced concrete conversion beam is met.
Preferably, the width of the reinforced concrete conversion beam is not less than the width of the rectangular concrete-filled steel tube column.
Preferably, the width of the reinforced concrete conversion beam is smaller than that of the rectangular concrete-filled steel tube column. At the moment, the upper part of the steel supporting plate is equivalent to the reinforced concrete column with the enlarged section, and the reinforced concrete conversion beam is anchored into the column.
The other purpose of the invention is realized by the following technical scheme:
the arrangement method of the rectangular concrete filled steel tube column-reinforced concrete transfer beam node comprises the following steps:
the steel structure part of the rectangular concrete filled steel tube column-reinforced concrete transfer beam joint is manufactured in a factory;
fix the rectangle steel core concrete column, at the capital edge welding steel layer board of rectangle steel core concrete column, a plurality of one-level mechanical joint of steel layer board top welding, a plurality of stiffening ribs of below welding, rectangle steel pipe is strengthened at the inboard welding inside lining steel pipe of capital, accomplishes the rectangle steel core concrete column of belted steel layer board from this.
After the rectangular concrete-filled steel tube column with the steel supporting plate is in place on site, the steel supporting plate is used as a part of a template of the reinforced concrete conversion beam, reinforced bars of the reinforced concrete conversion beam are placed on the steel supporting plate, corresponding column longitudinal bars are inserted into the primary mechanical joints, stirrups are arranged around the column longitudinal bars, and finally concrete is poured to form the rectangular concrete-filled steel tube column-reinforced concrete conversion beam node.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. compared with the existing common beam type conversion layer node, the reinforced concrete conversion beam node has the advantages that the steel pipe does not enter the reinforced concrete conversion Liang Nabu reinforcing steel bar position, so that the reinforcing steel bar in the reinforced concrete conversion beam can freely pass through the position of the column.
2. Compared with the existing common beam type conversion layer node, if the beam width is larger than the column width, the invention adds the steel supporting plate on the column head to improve the shearing resistance of the column edge beam end when the reinforced concrete conversion Liang Chuanli is used for the column.
3. Compared with the conventional common beam type conversion layer node, the longitudinal ribs are arranged in the steel supporting plate, the steel pipe concrete column is expanded into a reinforced concrete column with a larger cross section in the beam height range, the bending resistance of a column head is ensured, and the beam column node is close to rigid connection.
4. Compared with the existing common beam type conversion layer node, the primary mechanical joint welded on the steel supporting plate ensures the convenience of construction operation when the post longitudinal bar and the orthogonal beam bar are crossed in the later period.
Drawings
Fig. 1 is a sectional view of a rectangular concrete filled steel tube column-reinforced concrete transfer beam joint according to the present invention.
Fig. 2 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 1.
Fig. 3 is a cross-sectional view of the primary mechanical joint of fig. 1 taken in cross-section.
Fig. 4 is a cross-sectional view of the stiffener of fig. 1.
Wherein the reference numerals have the following meanings:
the concrete-filled steel tube column comprises a rectangular concrete-filled steel tube column-1, a steel supporting plate-2, a reinforced concrete transfer beam-3, stirrups-4, a primary mechanical joint-5, stiffening ribs-6 and column longitudinal ribs-7.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
As shown in fig. 1-4, the rectangular reinforced concrete-filled steel tube column-reinforced concrete transfer beam node comprises a steel supporting plate 2 arranged between a rectangular reinforced concrete-filled steel tube column 1 and a reinforced concrete transfer beam 3, a stiffening rib 6 under the supporting plate, a primary mechanical joint 5 on the supporting plate and a column inserting rib 7; the steel supporting plate 2 is welded on the periphery of the top outer edge of the rectangular steel pipe column 1 and fixedly connected to a steel pipe through the stiffening ribs 6, the one-level mechanical joint 5 is vertically welded on the steel supporting plate 2, and the reinforcing bars in the mechanical joint 5 serve as column longitudinal bars 7 within the height range of the reinforced concrete conversion beam 3.
A plurality of stiffening ribs 6 are welded between the lower part of the steel supporting plate 2 and the rectangular concrete-filled steel tube column 1.
And welding a lining pipe with a preset thickness on the inner edge of the top of the rectangular concrete-filled steel tube column 1.
And a plurality of hooping 4 are arranged around the column longitudinal rib 7.
A plurality of one-level mechanical joint 5 set up according to the interval of law, and are no less than 7 quantity of muscle are indulged to actual post.
The width of the steel supporting plate 2 is determined according to calculation, and the requirement of the bending resistance bearing capacity of the reinforced concrete column 1 within the height range of the reinforced concrete transfer beam 3 is met.
The width of the reinforced concrete conversion beam 3 is not less than that of the rectangular concrete-filled steel tube column 1.
The width of the reinforced concrete transfer beam 3 is smaller than that of the rectangular concrete-filled steel tube column 1. At the moment, the upper part of the steel supporting plate 2 is equivalent to a reinforced concrete column with an enlarged section, and the reinforced concrete conversion beam 3 is anchored into the column.
The stiffening ribs 6 are designed according to regular intervals and meet the stress calculation requirement of the transition from force transmission of the vertical column longitudinal ribs 7 to the steel pipe column.
And whether section steel is arranged in the reinforced concrete transfer beam 3 according to the calculation requirement or not can be judged.
The welding position of the steel supporting plate 2 is 30-50 mm lower than the top of the rectangular concrete filled steel tube column 1, and the steel supporting plate is generally matched with a beam longitudinal bar protective layer.
The cross sectional areas, the intervals and the positions of longitudinal bars and stirrups of the rectangular concrete-filled steel tube column-reinforced concrete transfer beam all meet the regulations of concrete structure design specifications (GB 50010-2010), building structure earthquake-resistant design specifications (GB 50011-2010) and high-rise building concrete structure technical specifications (JGJ 3-2010).
The rectangular concrete filled steel tube column-reinforced concrete conversion beam node steel structure part is generally required to be manufactured in a factory, the rectangular concrete filled steel tube column 1 is fixed, a steel supporting plate 2 is welded to the edge of the top of the column, and a first-stage mechanical joint 5 above the steel supporting plate 2 and a stiffening rib 6 below the steel supporting plate are welded. After the rectangular concrete filled steel tube column with the steel supporting plate 2 is in place on site, the steel supporting plate 2 serves as a part of a template of the reinforced concrete conversion beam 3, reinforced concrete conversion beam steel bars are placed on the template, corresponding column longitudinal bars 7 are inserted into the primary mechanical joint 5, stirrups 4 are arranged around the column longitudinal bars 7, and finally concrete is poured to form the rectangular concrete filled steel tube column-reinforced concrete conversion beam node.
The steel pipes of the rectangular steel pipe concrete column-reinforced concrete conversion beam node do not enter the reinforced concrete conversion Liang Nabu reinforcing steel bar position, so that the reinforcing steel bars in the beam can transversely and freely pass through the column position; the steel supporting plate is arranged, so that the bending resistance and the shearing resistance of the node are ensured; the use of one-level mechanical joint has guaranteed the convenience of construction operation when later stage post is indulged muscle and is crossed with the quadrature beam muscle.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (8)
1. Rectangle steel core concrete column-reinforced concrete conversion beam node, its characterized in that: the device comprises a steel supporting plate arranged between a rectangular steel pipe concrete column and a reinforced concrete transfer beam and a plurality of primary mechanical joints welded on the steel supporting plate; the steel supporting plate is welded on the periphery of the outer edge of the top of the rectangular steel pipe concrete column, the primary mechanical joint is vertically welded on the steel supporting plate, and column longitudinal ribs which are inserted and anchored in the reinforced concrete conversion beam are arranged on the joint to form a large-size concrete column; and a plurality of stirrup drawknots are arranged around the column longitudinal bar.
2. The rectangular concrete-filled steel tube column-reinforced concrete transfer beam joint of claim 1, wherein: a plurality of vertical stiffening ribs are welded between the lower portion of the steel supporting plate and the rectangular concrete-filled steel tube column.
3. The rectangular concrete-filled steel tube column-reinforced concrete transfer beam joint of claim 1, wherein: and welding an inner lining pipe with preset thickness on the inner edge of the top of the rectangular concrete filled steel tube column.
4. The rectangular concrete-filled steel tube column-reinforced concrete transfer beam joint of claim 1, wherein: a plurality of one-level mechanical joint sets up according to the interval of law, and is no less than actual post and indulges muscle quantity.
5. The rectangular concrete-filled steel tube column-reinforced concrete transfer beam joint as claimed in claim 1, wherein: the width of the steel supporting plate is determined according to calculation, and the requirement of the bending resistance bearing capacity of the reinforced concrete column within the height range of the reinforced concrete transfer beam is met.
6. The rectangular concrete-filled steel tube column-reinforced concrete transfer beam joint of claim 1, wherein: the width of the reinforced concrete conversion beam is not less than that of the rectangular concrete-filled steel tube column.
7. The rectangular concrete-filled steel tube column-reinforced concrete transfer beam joint of claim 1, wherein: the width of the reinforced concrete transfer beam is smaller than that of the rectangular concrete-filled steel tube column.
8. The arrangement method of the rectangular concrete-filled steel tube column-reinforced concrete transfer beam node is characterized by comprising the following steps of:
the steel structure part of the rectangular concrete filled steel tube column-reinforced concrete transfer beam joint is manufactured in a factory;
fix the rectangle steel core concrete column, at the capital edge welding steel layer board of rectangle steel core concrete column, a plurality of one-level mechanical joint of steel layer board top welding, a plurality of stiffening ribs of below welding, rectangle steel pipe is strengthened at the inboard welding inside lining steel pipe of capital, accomplishes the rectangle steel core concrete column of belted steel layer board from this.
After the rectangular concrete-filled steel tube column with the steel supporting plate is in place on site, the steel supporting plate is used as a part of a template of the reinforced concrete conversion beam, reinforced bars of the reinforced concrete conversion beam are placed on the steel supporting plate, corresponding column longitudinal bars are inserted into the primary mechanical joints, stirrups are arranged around the column longitudinal bars, and finally concrete is poured to form the rectangular concrete-filled steel tube column-reinforced concrete conversion beam node.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211163630.1A CN115710978A (en) | 2022-09-23 | 2022-09-23 | Rectangular concrete-filled steel tube column-reinforced concrete transfer beam node and arrangement method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211163630.1A CN115710978A (en) | 2022-09-23 | 2022-09-23 | Rectangular concrete-filled steel tube column-reinforced concrete transfer beam node and arrangement method thereof |
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| CN115710978A true CN115710978A (en) | 2023-02-24 |
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| CN202211163630.1A Pending CN115710978A (en) | 2022-09-23 | 2022-09-23 | Rectangular concrete-filled steel tube column-reinforced concrete transfer beam node and arrangement method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117328564A (en) * | 2023-10-24 | 2024-01-02 | 中信建筑设计研究总院有限公司 | Connecting node of reinforced concrete column cap and steel tube concrete column and construction method |
| CN117605162A (en) * | 2024-01-18 | 2024-02-27 | 北京建工集团有限责任公司 | Equal-section conversion structure system of concrete column and steel column and construction method thereof |
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2022
- 2022-09-23 CN CN202211163630.1A patent/CN115710978A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117328564A (en) * | 2023-10-24 | 2024-01-02 | 中信建筑设计研究总院有限公司 | Connecting node of reinforced concrete column cap and steel tube concrete column and construction method |
| CN117605162A (en) * | 2024-01-18 | 2024-02-27 | 北京建工集团有限责任公司 | Equal-section conversion structure system of concrete column and steel column and construction method thereof |
| CN117605162B (en) * | 2024-01-18 | 2024-03-29 | 北京建工集团有限责任公司 | Equal-section conversion structure system of concrete column and steel column and construction method thereof |
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