CN217711381U - Novel assembled concrete-filled steel tube combination column buckling-restrained hoop structure - Google Patents
Novel assembled concrete-filled steel tube combination column buckling-restrained hoop structure Download PDFInfo
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- CN217711381U CN217711381U CN202221741252.6U CN202221741252U CN217711381U CN 217711381 U CN217711381 U CN 217711381U CN 202221741252 U CN202221741252 U CN 202221741252U CN 217711381 U CN217711381 U CN 217711381U
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Abstract
The utility model provides a novel assembled concrete filled steel tube combination column buckling restrained hoop structure, includes buckling restrained hoop body, and buckling restrained hoop body cover is located on the steel pipe, and the steel pipe intussuseption concrete, steel pipe and concrete form concrete filled steel tube combination column, and relative side reservation has many pairs of corresponding bolt holes on the steel pipe, offers the bolt hole corresponding with the bolt hole on the steel pipe on the buckling restrained hoop body, and buckling restrained hoop body passes the bolt hole with the steel pipe through split bolt and is connected. The utility model discloses a buckling restrained hoop can prevent effectively that concrete filled steel tube combination post steel pipe outer wall from taking place the bucking under the loading effect, adopts the high-strength friction type to be connected concrete filled steel tube combination post with buckling restrained hoop body, and buckling restrained hoop body is stayed apart from the column base and is established the space, can avoid buckling restrained hoop to undertake additional shear force and overturning moment of flexure, realizes preventing the function of concrete filled steel tube combination post steel pipe outer wall bucking under the condition that does not increase structure basement shear force and overturning moment of flexure from this.
Description
Technical Field
The utility model relates to a civil engineering field especially relates to a novel assembled concrete filled steel tube combination post buckling restrained hoop structure.
Background
In recent years, national economy of China is rapidly developed, and the demand of people on high-quality living conditions is gradually enhanced, so that a novel building technology is correspondingly rapidly developed. The fabricated building has the advantages of stable quality, convenience for field operation, higher construction efficiency and the like, and is beneficial to saving resources, reducing construction pollution and promoting the deep integration of the building industry and industrialization. The adoption of a safe, advanced and economic assembly type building technology has very important significance for ensuring project safety, reducing engineering accident risk, improving labor productivity, reducing engineering cost and realizing civilized construction.
The steel tube concrete composite structure is used as a high-performance bearing structure and gradually widely applied to the field of building structures. The steel tube concrete composite structure has the advantages of the stress performance of two materials of steel and concrete, and can give full play to the tensile strength, the ductility and the energy consumption capability of the steel and the compressive strength of the concrete. Meanwhile, the steel pipe and the concrete interact in the stress process, the steel pipe effectively restrains the concrete, and the concrete is in a three-dimensional compressive stress state, so that the compressive strength of the concrete is improved, and the brittleness of the concrete is improved; the concrete provides unidirectional buckling constraint for the steel pipe, avoids the steel pipe from buckling inwards, and can ensure the performance of steel products to a certain extent.
Under the action of axial load and overturning load, the steel tube concrete composite structure is usually damaged due to outward buckling of the bottom of a steel tube. At present, the outwards buckling of the bottom of a steel pipe is delayed by welding stiffening ribs and the like at the bottom of the steel pipe, however, the stiffening ribs participate in stress because the stiffening ribs and the steel pipe are connected in a welding manner, so that the bearing capacity requirement of a structural substrate is increased; in addition, the buckling position is moved from the bottom of the steel pipe to the position above the stiffening rib by the method, and the buckling problem of the steel pipe is not completely solved; moreover, the welding process of the stiffening ribs causes welding residual stress, thereby reducing the mechanical properties of the steel pipe. Therefore, it is necessary to provide a buckling-restrained structure capable of effectively delaying the outward buckling of the bottom of the steel pipe.
Disclosure of Invention
The utility model provides a solve above-mentioned problem, provide an assembled concrete filled steel tube combination column buckling restrained hoop structure, can not increase under the condition of structure basement bearing capacity demand, effectively delay the emergence of concrete filled steel tube combination structure steel pipe bottom bucking.
The utility model discloses the technical scheme who takes:
the utility model provides a novel assembled concrete filled steel tube combination column buckling restrained hoop structure, includes buckling restrained hoop body, and buckling restrained hoop body cover is located on the steel pipe, and the steel pipe intussuseption concrete, steel pipe and concrete form concrete filled steel tube combination column, and relative side reservation has many pairs of corresponding bolt holes on the steel pipe, offers the bolt hole corresponding with the bolt hole on the steel pipe on the buckling restrained hoop body, and buckling restrained hoop body passes the bolt hole with the steel pipe through split bolt and is connected.
A gap is reserved between the bottom edge of the anti-buckling hoop body and the bottom of the steel pipe concrete combined column.
The width of a gap between the anti-buckling hoop body and the bottom of the concrete filled steel tube combined column is 50-100 mm.
The buckling-restrained hoop body is formed by bending and welding a rectangular steel plate.
The welding seam of the buckling-restrained hoop body is a groove butt welding seam.
The cross section of the anti-buckling hoop body is in a long direction or a square shape after being welded.
The height of the anti-buckling hoop body is 1/4-1/3 of the height of the steel pipe concrete combined column.
The utility model has the advantages that: the utility model discloses a buckling restrained hoop can prevent effectively that concrete filled steel tube combination post steel pipe outer wall from taking place the bucking under the loading effect, adopts the high-strength friction type to be connected concrete filled steel tube combination post with buckling restrained hoop body, and buckling restrained hoop body is stayed apart from the column base and is established the space, can avoid buckling restrained hoop to undertake additional shear force and overturning moment of flexure, realizes preventing the function of concrete filled steel tube combination post steel pipe outer wall bucking under the condition that does not increase structure basement shear force and overturning moment of flexure from this.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a concrete-filled steel tube composite column.
Fig. 3 is the utility model discloses install the structure schematic diagram on the steel pipe-concrete composite post.
Wherein: 1-a steel pipe; 2-concrete; 3-a buckling restrained hoop body; 4-welding seams; 5-split bolts; 6-voids; 7-bolt hole.
Detailed Description
The utility model provides a novel assembled concrete-filled steel tube combination column buckling restrained hoop structure, including buckling restrained hoop body 3, buckling restrained hoop body 3 cover is located on steel pipe 1, steel pipe 1 intussuseption concrete 2, steel pipe 1 forms the concrete-filled steel tube combination column with concrete 2, relative side reservation has many pairs of corresponding bolt hole 7 on the steel pipe 1, set up bolt hole 7 corresponding with bolt hole 7 on the steel pipe 1 on buckling restrained hoop body 3, buckling restrained hoop body 3 passes bolt hole 7 with steel pipe 1 through split bolt 5 and is connected, bolt hole 7 link up the concrete 2 of steel pipe 1 and its intussuseption along the horizontal direction, bolt hole 7 on the steel pipe 1 should be left before installing buckling restrained hoop body 3 and establish, before buckling restrained hoop body 3 bends, should leave and establish bolt hole 7 in split bolt 5 corresponding position.
A gap 6 is reserved between the bottom edge of the anti-buckling hoop body 3 and the bottom of the steel pipe concrete combined column, and the width of the gap 6 is 50-100 mm.
The buckling-restrained hoop body 3 is formed by bending and welding a rectangular steel plate.
And a welding seam 4 welded on the buckling-restrained hoop body 3 is a groove butt welding seam.
The cross section of the anti-buckling hoop body 3 is rectangular or square after being welded.
The height of the anti-buckling hoop body 3 is 1/4-1/3 of the height of the steel pipe concrete combined column.
The anti-buckling hoop body 3 is installed on the steel pipe 1 before the high-strength friction type split bolts 5 are installed, and the high-strength friction type split bolts 5 penetrate into corresponding bolt holes 7 before concrete 2 is poured and are tightened to 30% of pre-tightening force. The concrete 2 is poured after the high-strength friction type split bolts 5 are installed in place, the split bolts 5 are screwed to be pretightened after the design strength is achieved, and the steel tube concrete composite column has the advantages of high rigidity, high bearing capacity and good ductility and shows good anti-seismic performance. When vertical pressure or the moment of flexure of toppling are great, the bucking easily takes place for the steel pipe concrete steel pipe wall to reduce structural performance, adopt the utility model discloses a structure can effectively prevent steel pipe concrete combination post steel pipe wall bucking, makes steel pipe concrete column structural performance obtain full play.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The embodiments of the present invention have been described in detail, but the 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 (7)
1. The utility model provides a novel assembled steel pipe concrete combination post buckling restrained hoop structure, a serial communication port, including buckling restrained hoop body (3), buckling restrained hoop body (3) cover is located on steel pipe (1), steel pipe (1) intussuseption concrete (2), steel pipe (1) and concrete (2) form steel pipe concrete combination post, relative side is reserved on steel pipe (1) has many to corresponding bolt hole (7), set up bolt hole (7) corresponding with bolt hole (7) on steel pipe (1) on buckling restrained hoop body (3), buckling restrained hoop body (3) are passed bolt hole (7) with steel pipe (1) through split bolt (5) and are connected.
2. The novel assembled concrete-filled steel tube combination column anti-buckling hoop structure as claimed in claim 1, wherein a gap (6) is reserved between the bottom edge of the anti-buckling hoop body (3) and the bottom of the concrete-filled steel tube combination column.
3. The novel assembled concrete-filled steel tube combination column anti-buckling hoop structure as claimed in claim 2, wherein the width of the gap (6) between the anti-buckling hoop body (3) and the bottom of the concrete-filled steel tube combination column is 50-100 mm.
4. The novel fabricated concrete-filled steel tube combination column anti-buckling hoop structure as claimed in claim 1, wherein the anti-buckling hoop body (3) is formed by bending and welding a rectangular steel plate.
5. The novel fabricated concrete-filled steel tube combination column anti-buckling hoop structure as claimed in claim 4, wherein the welding seam (4) welded by the anti-buckling hoop body (3) is a groove butt welding seam.
6. The novel assembled concrete-filled steel tube combination column anti-buckling hoop structure as claimed in claim 5, wherein the cross section of the anti-buckling hoop body (3) is rectangular or square after welding.
7. The novel assembled concrete-filled steel tube combination column anti-buckling hoop structure as claimed in claim 6, wherein the height of the anti-buckling hoop body (3) is 1/4-1/3 of the height of the concrete-filled steel tube combination column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221741252.6U CN217711381U (en) | 2022-07-06 | 2022-07-06 | Novel assembled concrete-filled steel tube combination column buckling-restrained hoop structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221741252.6U CN217711381U (en) | 2022-07-06 | 2022-07-06 | Novel assembled concrete-filled steel tube combination column buckling-restrained hoop structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217711381U true CN217711381U (en) | 2022-11-01 |
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ID=83776124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221741252.6U Active CN217711381U (en) | 2022-07-06 | 2022-07-06 | Novel assembled concrete-filled steel tube combination column buckling-restrained hoop structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217711381U (en) |
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2022
- 2022-07-06 CN CN202221741252.6U patent/CN217711381U/en active Active
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