CN215594609U - Anchor plate and stiff column fixing structure in stiff structure - Google Patents
Anchor plate and stiff column fixing structure in stiff structure Download PDFInfo
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- CN215594609U CN215594609U CN202121333667.5U CN202121333667U CN215594609U CN 215594609 U CN215594609 U CN 215594609U CN 202121333667 U CN202121333667 U CN 202121333667U CN 215594609 U CN215594609 U CN 215594609U
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Abstract
The utility model relates to an anchor plate in a stiff structure, wherein an anchor bolt hole corresponding to a column base anchor bolt at the top of a bottom concrete column is arranged on the surface of the anchor plate, the anchor plate is pre-buried at the top of the bottom concrete column, a limiting groove is arranged at the periphery of the anchor plate, and a column longitudinal rib is arranged in the limiting groove; the stiff column fixing structure comprises a bottom concrete column and a box-type steel structure column, wherein a plurality of column base anchor bolts are pre-embedded in the top of the bottom concrete column; the lower parts of the longitudinal bars of the stiff columns are embedded in the bottom concrete columns; the bottom of the box-type steel structure column is fixedly connected with a column bottom plate, and the periphery of the column bottom plate is provided with openings distributed according to the design of the stiff column longitudinal bars; the top of the bottom concrete column is also pre-embedded with an anchor plate, and the anchor plate is provided with a plurality of anchor bolt holes corresponding to anchor bolts of each column foot; limiting grooves distributed according to the design of the stiffening column longitudinal ribs are formed in the periphery of the anchor plate; the relative spacing of each longitudinal rib is limited by the limiting groove, and the longitudinal ribs are always consistent with the openings of the column bottom plate, so that the smooth installation of the steel column is ensured, and the structural requirements are met.
Description
Technical Field
The utility model belongs to a connecting structure of a steel structure column, and particularly relates to an anchor plate in a stiffness structure and a stiffness column fixing structure.
Background
The steel structure is used more and more widely in building structures as a green building material, and in the engineering construction of the steel structure stiff column, the construction of column base anchor bolts and the pre-embedding of stiff column steel bars is a precondition for the construction of the steel column. A mode that part of steel columns such as H-shaped steel columns, cross columns, box-shaped columns and the like in the stiff steel structure engineering are connected with a foundation through a column base anchor bolt is adopted, the column base anchor bolts are in an anchor rod mode, one group of column base anchor bolts is composed of a plurality of column base anchor bolts, and the embedding and positioning difficulty of column base anchor bolt groups and stiff column longitudinal bars in the stiff structure is high.
During construction, after stiff column steel bars (referred to as 'longitudinal bars' in the description) are arranged, column base anchor bolts are positioned at the elevations of the concrete columns at the bottom, then the concrete columns at the lower parts are poured, the column base steel bars and the longitudinal bars are pre-buried in concrete, the longitudinal bars are kept with steel bars of 1-1.2 meters, the longitudinal bars belong to the tail ends of the tops of the concrete columns, the longitudinal bars are not connected with each other, the longitudinal bars and the longitudinal bars, the longitudinal bars and the column base anchor bolts are respectively dispersed structures, and relatively stable overall connection is not formed. In the vibrating process after the concrete at the bottom is poured, the longitudinal ribs are easy to displace, and the designed position cannot be maintained. The design position refers to the space between the longitudinal bars, the position of the longitudinal bars relative to the concrete column, and the like.
In the stiffness structure, a steel column is arranged on a concrete column, and the steel column vertically descends and falls onto a column base anchor bolt. The bottom of the steel column is fixedly connected with a column bottom plate, the length and width of the column bottom plate are designed and manufactured, the periphery of the column bottom plate is provided with notches distributed and manufactured according to the design of longitudinal ribs, the notches are in one-to-one correspondence with the longitudinal ribs, the steel column moves downwards along the longitudinal ribs, and the steel column is very close to a rib outlet point of the longitudinal ribs when falling onto a column base anchor bolt. At the moment, if the longitudinal ribs are displaced during vibration, the gaps and the longitudinal ribs cannot be aligned, and the longitudinal ribs are separated from the gap range, so that the steel column cannot move or cannot be aligned with the concrete column.
In conclusion, the embedding and positioning difficulty of the column foot anchor bolt group and the stiff column longitudinal bars in the stiff structure is high, the steel column foot anchor bolt group and the stiff column longitudinal bars are difficult to form a whole and are firmly fixed, common quality problems such as deviation, inclination and the like are easy to occur, and the installation and engineering construction quality of subsequent steel columns is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems, and provides a positioning structure among a column bottom plate, an anchor plate and a concrete column longitudinal rib.
The utility model solves the problems and adopts the technical scheme that:
the anchor plate in a stiff structure is provided with anchor bolt holes on the plate surface, the anchor plate is pre-buried at the top of a bottom concrete column, and the anchor bolt holes are in one-to-one correspondence with column base anchor bolts at the top of the bottom concrete column; the periphery of the anchor plate is provided with limiting grooves, the limiting grooves correspond to the stiff column longitudinal ribs one by one, and the stiff column longitudinal ribs are arranged in the limiting grooves.
Adopt the anchor slab of above-mentioned structure, compare with prior art, its beneficial effect is:
the anchor plate ensures the design standard position of each column base anchor bolt, so that the concrete column and the steel column connecting structure can be smoothly butted; the deflection of individual column longitudinal ribs during vibration can be limited, and the longitudinal ribs of each column are embedded in the concrete column at the designed positions, so that the gaps of the column bottom plate can correspond to the longitudinal ribs, and the steel column can fall to the standard position.
The utility model also provides a stiff column fixing structure which comprises a bottom concrete column and a box-type steel structure column, wherein a plurality of column base anchor bolts are embedded in the top of the bottom concrete column; the lower parts of the longitudinal bars of the stiff columns are embedded in the bottom concrete columns; the bottom of the box-type steel structure column is fixedly connected with a column bottom plate, and the periphery of the column bottom plate is provided with openings distributed according to the design of the stiff column longitudinal bars; the top of the bottom concrete column is also pre-embedded with an anchor plate, and the anchor plate is provided with a plurality of anchor bolt holes corresponding to anchor bolts of each column foot; and limiting grooves distributed according to the design of the longitudinal ribs of the stiff columns are arranged on the periphery of the anchor plate.
Adopt the anchor slab of above-mentioned structure, compare with prior art, its beneficial effect is:
the anchor plate can be used for fixing a column base anchor bolt on a concrete column and fixing longitudinal ribs in a stiff structure, the structure for protecting the positions of the concrete column and a steel column node meets the standard, and the smooth proceeding of butt joint construction is protected.
Preferably, the anchor plate in the stiff structure further comprises:
the width of the limiting groove is +2mm of the diameter of the longitudinal rib of the stiff column; the depth of the limiting groove is +/-2 mm of the diameter of the longitudinal rib of the stiff column.
The utility model also provides a stiff structure applying the anchor plate, and the specific technical scheme is as follows:
a stiff column fixing structure comprises stiff column longitudinal ribs, a bottom concrete column and a box-type steel structure column, wherein a plurality of column foot anchor bolts are pre-embedded in the top of the bottom concrete column; the lower parts of the longitudinal bars of the stiff columns are embedded in the bottom concrete columns; the bottom of the box-type steel structure column is fixedly connected with a column bottom plate, and the periphery of the column bottom plate is provided with openings distributed according to the design of the stiff column longitudinal bars; the method is characterized in that: the top of the bottom concrete column is also pre-embedded with an anchor plate, and the anchor plate is provided with a plurality of anchor bolt holes corresponding to anchor bolts of each column foot; and limiting grooves distributed according to the design of the longitudinal ribs of the stiff columns are arranged on the periphery of the anchor plate.
Adopt strength nature post fixed knot of above-mentioned structure to construct, compare with prior art, its beneficial effect is:
according to the scheme, the anchor bolts, the anchor plates, the column base plate and the stiff column longitudinal bars can form a linked combined structure in the stiff structure, the stiff column longitudinal bars penetrate through the limiting grooves reserved in the steel structure anchor plates, the relative distance between every two longitudinal bars is limited by the limiting grooves, the stiff column longitudinal bars always conform to the openings of the column base plate, smooth installation of the steel column is guaranteed, and meanwhile the structural requirements are met.
Drawings
FIG. 1 is a schematic diagram of a stiff prior art structure;
FIG. 2 is a cross-sectional view of a prior art anchor plate joint;
FIG. 3 is a stiff block diagram of the present invention;
FIG. 4 is a schematic cross-sectional view of a column base plate node of the present invention;
fig. 5 is a schematic cross-sectional view of the node of the anchor plate of the present application.
In the figure: the steel column comprises a steel column 1, a column bottom plate 2, an anchor plate 3, a stiff column longitudinal rib 4, a bottom concrete column 5, a column base anchor bolt 6, a notch 7, a limiting groove 8 and a positioning plate 3'.
Detailed Description
The utility model will be further illustrated by the following examples, which are intended only for a better understanding of the present invention and therefore do not limit the scope of the utility model.
Referring to fig. 1 and 2, in the stiffness connection structure of a steel column in the prior art, the bottom of a stiffness column longitudinal rib 4 is pre-buried in a bottom concrete column 5, the height of the upper portion of the stiffness column longitudinal rib 4 is about 1 m to 1.2 m, the steel column 1 slides downwards from the top of the stiffness column longitudinal rib 4, a column bottom plate 2 is fixedly connected to the bottom of the steel column 1, a notch 7 is formed in the periphery of the column bottom plate 2, the notch 7 corresponds to the stiffness column longitudinal rib 4, and the column bottom plate 2 moves downwards along the stiffness column longitudinal rib 4 and generally drops to a height 50cm from the top surface of the bottom concrete column 5 to be fixed. If the position of the stiff column longitudinal rib 4 deviates, each stiff column longitudinal rib 4 cannot correspond to each notch 7, the steel column 1 does not have enough space to move, and if the position of the stiff column longitudinal rib 4 deviates seriously, the steel column 1 cannot be installed in place.
The utility model provides a fixing structure, and aims to solve the problem that stiff column longitudinal ribs 4 are not in accordance with the design distribution and cannot correspond to notches 7 on a column bottom plate 2.
The reason analysis shows that: although the stiff column longitudinal ribs 4 are already installed and fixed before the bottom concrete column 5 is cast, the column side longitudinal ribs and the longitudinal ribs at the column corner positions are deviated when the bottom concrete column 5 is cast and vibrated. The vibration causes the stiff column longitudinal bars to bend or tilt. If the concrete is buried in the lower part of the concrete, the structural rigidity and later construction cannot be obviously influenced, but the steel bar outlet points of the stiff column longitudinal steel bars 4 on the top of the concrete are deviated, and particularly when the displacement directions of the stiff column longitudinal steel bars 4 are inconsistent, the distribution of the steel bar outlet points is not consistent with the initial design distribution. The peripheral opening 7 of the column bottom plate 2 at the bottom of the steel column 1 is strictly consistent with the design distribution of the stiff column longitudinal ribs 4, so that the stiff column longitudinal ribs 4 are separated from the opening 7 after the steel column 1 descends.
During construction, it is found that the stiff longitudinal bars 4 may be displaced only by individual longitudinal bars, or may be displaced by different amounts and orientations. Eventually resulting in a mismatch of the location of the stiff column longitudinal ribs 4 and the slits 7. Through the analysis, the problem to be solved by the utility model is that the mutual positions of the stiff column longitudinal bars 4 on the bar-forming section cannot be kept in the designed distribution, namely, the mutual position relationship between the longitudinal bars cannot be fixed.
According to the above analysis and solution concept, the present invention proposes an anchor plate 3 for limiting the displacement of the stiff column longitudinal bars 4. Specifically, the anchor plate structure provided by the utility model is as follows: the periphery of the surface of the anchor plate in a stiff structure is provided with a limiting groove 8. The limiting grooves 8 can be correspondingly manufactured according to the design quantity of the stiff column longitudinal ribs 4, and can also be integrated with two to three longitudinal rib distributions and arranged according to the combination thereof. Each stiff column longitudinal bar 4 is clamped in the limiting groove 8 and can be welded and fixed. Therefore, no matter how the vibration is caused, the positions of the stiff column longitudinal ribs 4 at the node positions cannot be changed, and the design distribution of the stiff column longitudinal ribs 4 is always kept. Preferably, the anchor plate 3 is made as an integral structure with the positioning plate 3' of the column shoe anchor 6 at the top of the bottom concrete column. Or a frame with a through hole which is larger than the column base anchor bolt positioning plate 3 'in the middle and gives the positioning plate 3' out.
Example (b): the anchor plate 3 is a rectangular steel plate, anchor bolt holes are distributed on the surface of the anchor plate 3 according to the column base anchor bolts 6, the periphery of the anchor plate 3 is provided with a limiting groove 8, and the stiff column longitudinal ribs 4 are clamped in the limiting groove 8.
Specifically, the width of the limiting groove 8 is the diameter of the stiff column longitudinal rib 4 plus 2 mm; the depth of the limiting groove 8 is the diameter of the stiff column longitudinal rib 4 +/-2 mm.
Based on the anchor plate, the utility model also provides a stiff fixing structure of the column, which comprises a bottom concrete column 5 and a box-type steel column 1, wherein a plurality of column base anchor bolts 6 are embedded in the top of the bottom concrete column 5; the lower parts of the stiff column longitudinal bars 4 are pre-buried in the bottom concrete column 5; the bottom of the box-type steel column 1 is fixedly connected with a column bottom plate 2, and the periphery of the column bottom plate 2 is provided with notches 7 distributed according to the design of the stiff column longitudinal ribs 4; the top of the bottom concrete column 5 is also pre-embedded with an anchor plate 3, and the anchor plate 3 is provided with a plurality of anchor bolt holes corresponding to each column base anchor bolt 6; the periphery of the anchor plate 3 is provided with limiting grooves 8 distributed according to the design of the stiff column longitudinal ribs 4.
The concrete construction comprises the following steps: after the stiff column steel bars are arranged, the anchor plate is arranged in the stiff column, and each stiff column longitudinal bar is clamped in a limiting groove at the periphery of the anchor plate; the anchor plate 3 is positioned to the elevation position of the bottom concrete column 5; a column base anchor bolt 6 is placed in an anchor bolt hole of the anchor plate 3 and fixed; then fixing the anchor plate 3; and (6) pouring concrete. Because the anchor plate 3 forms the combined structure with each stiffening column steel bar, the stiffening column longitudinal bars are influenced by vibration and bear together, so that the vibration is not easy to generate displacement, and the anchor plate fixes each longitudinal bar, even if a small amount of displacement occurs, the column base anchor bolt and the stiffening column longitudinal bars always keep the mutual positions unchanged. And the connection node is matched with the steel column connection node.
By adopting the technical scheme, when the steel column is installed on site, the installation and positioning time of the steel column can be greatly shortened due to the fact that the longitudinal bars of the stiff column are accurately embedded in advance, and the problem that the installation of the steel column is influenced due to the position offset of the steel bars is also solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.
Claims (3)
1. An anchor plate in a stiff structure, characterized in that: the anchor plate is provided with anchor bolt holes on the plate surface, the anchor plate is embedded in the top of the bottom concrete column, and the anchor bolt holes correspond to column base anchor bolts on the top of the bottom concrete column one by one; the periphery of the anchor plate is provided with limiting grooves, the limiting grooves correspond to the stiff column longitudinal ribs one by one, and the stiff column longitudinal ribs are arranged in the limiting grooves.
2. An anchor plate in a stiff structure according to claim 1, characterized in that: the width of the limiting groove is +2mm of the diameter of the longitudinal rib of the stiff column; the depth of the limiting groove is +/-2 mm of the diameter of the longitudinal rib of the stiff column.
3. A stiff column fixing structure comprises stiff column longitudinal ribs, a bottom concrete column and a box-type steel structure column, wherein a plurality of column foot anchor bolts are pre-embedded in the top of the bottom concrete column; the lower parts of the longitudinal bars of the stiff columns are embedded in the bottom concrete columns; the bottom of the box-type steel structure column is fixedly connected with a column bottom plate, and the periphery of the column bottom plate is provided with openings distributed according to the design of the stiff column longitudinal bars; the method is characterized in that: the top of the bottom concrete column is also pre-embedded with an anchor plate, and the anchor plate is provided with a plurality of anchor bolt holes corresponding to anchor bolts of each column foot; and limiting grooves distributed according to the design of the longitudinal ribs of the stiff columns are arranged on the periphery of the anchor plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121333667.5U CN215594609U (en) | 2021-06-16 | 2021-06-16 | Anchor plate and stiff column fixing structure in stiff structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121333667.5U CN215594609U (en) | 2021-06-16 | 2021-06-16 | Anchor plate and stiff column fixing structure in stiff structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215594609U true CN215594609U (en) | 2022-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121333667.5U Active CN215594609U (en) | 2021-06-16 | 2021-06-16 | Anchor plate and stiff column fixing structure in stiff structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215594609U (en) |
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2021
- 2021-06-16 CN CN202121333667.5U patent/CN215594609U/en active Active
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