CN211775110U - Four-corner steel pipe, corrugated side plate and flat side plate combined column - Google Patents
Four-corner steel pipe, corrugated side plate and flat side plate combined column Download PDFInfo
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- CN211775110U CN211775110U CN202020160676.8U CN202020160676U CN211775110U CN 211775110 U CN211775110 U CN 211775110U CN 202020160676 U CN202020160676 U CN 202020160676U CN 211775110 U CN211775110 U CN 211775110U
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Abstract
The utility model provides a four corners steel pipe and ripple curb plate and flat curb plate combination post, it includes: the steel plate comprises a flat web plate, a cross stiffening rib, a corner steel pipe and a corrugated side plate; four or more than four corner steel pipes are uniformly arranged to form an edge restraint body; the corner steel pipes along the X direction of the combined column are welded and connected by the corrugated side plates; the corner steel pipes along the Y direction of the combined column are connected by adopting the flat web plate in a welding manner; the flat web plate, the corner steel pipe and the corrugated side plate are enclosed to form a hollow columnar structure, the hollow part of the columnar structure is provided with the cross stiffening rib, and the end part of the cross stiffening rib is connected with the corner steel pipe. The utility model can reduce the thickness of the web plate of the combined column steel pipe by nearly one half under the condition of meeting the limitation of the maximum width-thickness ratio; under the condition of obtaining the same inertia moment, the amount of steel for the cross section is reduced by 20-30%.
Description
Technical Field
The utility model relates to a building, civil engineering technical field especially relate to a four corners steel pipe and ripple curb plate and flat curb plate combination post.
Background
As a column for a load-bearing structure, there is a problem of buckling due to a thin steel plate, and thus, the specification stipulates that there is a limit to the ratio between the thickness of the steel plate and the width of the steel plate in a constrained manner; this index is called "width-to-thickness ratio limit" (i.e., width of steel sheet constrained region/thickness of steel sheet, usually denoted as b/t); the "width of the constrained zone of the steel plate" means the width of the flat steel plate between the edges with lateral constraint; the research of European company shows that the bending resistance moment of inertia index of the component is in direct proportion to the width-thickness ratio. That is, the larger the width-thickness ratio of a steel member having the same cross-sectional area is, the larger the moment of inertia becomes. In view of the above, it is possible to reduce the thickness of the steel plate of the section by providing the longitudinal stiffeners for the box-type pillar section, but this method is rarely used because the amount of welding work is large and the surface of the member is not flat due to welding thermal deformation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a four corners steel pipe and ripple curb plate and flat curb plate combination post to there is the loaded down with trivial details of construction, extravagant manpower and materials, the poor problem of economic nature in solving the traditional structure post in the background art.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a four corners steel pipe and ripple curb plate and flat curb plate combination column, it includes: the steel pipe comprises a flat web plate (1), a cross stiffening rib (2), a corner steel pipe (3) and a corrugated side plate (5);
four or more than four corner steel pipes (3) are uniformly arranged to form an edge restraint body;
the corner steel pipes along the X direction of the combined column are welded and connected by the corrugated side plates (5);
the corner steel pipes along the Y direction of the combined column are welded and connected by adopting the flat web (1);
the flat web plate (1), the corner steel pipe (3) and the corrugated side plate (5) are enclosed to form a hollow columnar structure, the hollow part of the columnar structure is provided with the cross stiffening rib (2), and the end part of the cross stiffening rib (2) is connected with the corner steel pipe.
The utility model provides a pair of in four corners steel pipe and ripple curb plate and flat curb plate combination post, bight steel pipe is the square steel pipe.
The utility model provides a pair of in four corners steel pipe and ripple curb plate and flat curb plate combination post, the hollow portion of columnar structure is provided with the obturator, include but not only be limited to the concrete obturator.
The utility model provides a pair of in four corners steel pipe and ripple curb plate and flat curb plate combination column, be provided with obturator (4) in the bight steel pipe, include but not only be limited to the concrete obturator.
The utility model provides a pair of in four corners steel pipe and ripple curb plate and flat curb plate combination post, cross stiffening rib (2) are alternately arranged by two piece at least stiffening plates and are formed.
The utility model provides a pair of in four corners steel pipe and ripple curb plate and flat curb plate combination post, cross stiffening rib (2) evenly are provided with one or more along column structure's vertical direction.
The utility model provides a pair of in four corners steel pipe and ripple curb plate and flat curb plate combination post, be two that the diagonal angle set up pass through between the bight steel pipe cross stiffening rib (2) realize fixed connection with the diagonal angle mode of drawing to one side.
The utility model provides a pair of in four corners steel pipe and ripple curb plate and flat curb plate combination post, the thickness of ripple curb plate (5) is 1/600 of ripple curb plate (5) height.
Compared with the prior art, the utility model has the advantages that:
the utility model skillfully utilizes the method that the square steel tube, the steel plate and the corrugated plate (namely the corrugated side plate) are welded and enclosed into a square column body, four corners of the square steel tube (namely the corner steel tube) form edge constraint, and simultaneously, two sides of the connecting side plate (namely the flat web plate) of the Y-direction connecting square steel tube are constrained by the square steel tube; and the web of X to connecting the steel pipe is the ripple web, because the ripple web is from taking the ripple to put more energy into, the thickness then can be worth to 1/600 of ripple web height, and thickness can be done very little. Therefore, the width-thickness ratio of the steel pipes and the Y-direction side plates of the column with the same external dimension, namely the combination column of the four-corner steel pipes, the corrugated web plates and the flat side plates, is reduced by nearly half compared with a box column without stiffening ribs; the thickness of the corrugated plate in the X direction is usually less than half of the wall thickness of the box column with the same section height. That is, under the same condition of satisfying the maximum width-to-thickness ratio limit, the thickness of the web of the steel pipe of the "four-corner steel pipe, corrugated web and flat side plate combination column" can be reduced by nearly half; under the condition of obtaining the same inertia moment, the amount of steel for the cross section is reduced by 20-30%. That is, for the column which is pressed by large eccentricity and not controlled by axial compression ratio, the 'four-corner steel tube, corrugated web plate and flat side plate combined column' can also meet the stress requirement; particularly, the side plates of the flat steel plates are adopted between the Y-direction steel pipes instead of the corrugated plates, so that the bending resistance of the section of the column around a Y-axis neutral axis is obviously improved; the bending resistance around the X-direction neutral axis is relatively weak; the condition is particularly suitable for a primary and secondary beam floor system in a frame structure, wherein the stress in the direction of a strong axis is larger, and the stress in the direction of a weak axis is smaller; by the method, the steel used for the section of the member is distributed more reasonably, the steel used amount can be obviously reduced, and the economic benefit is obvious.
Drawings
Fig. 1 is the whole structure diagram of a four-corner steel pipe, corrugated side plate and flat side plate combined column of the present invention.
Fig. 2 is a top view of the four-corner steel tube, corrugated side plate and flat side plate combined column of the present invention.
FIG. 3 is a comparison of box column, shell column, four-corner steel pipe and corrugated side plate and flat side plate combined column with same construction cost.
FIG. 4 is a comparison of the construction cost of the box column, the shell column, the four-corner steel tube, the corrugated side plate and the flat side plate combined column under the condition of the same bending moment bearing capacity, (a) is the M-N curve of the column corresponding to the same bearing capacity; (b) the same bearing capacity corresponds to the column price.
Detailed Description
The technical solution adopted by the present invention will be further described with reference to the schematic drawings.
The first embodiment of the utility model provides a four corners steel pipe and ripple curb plate and flat curb plate combination post, refer to fig. 1, it includes flat web 1, cross stiffening rib 2, bight steel pipe 3, ripple curb plate 5.
The corner steel pipes 3 in fig. 1 include four corner steel pipes, and the corner steel pipes may have other forms such as, but not limited to, a square shape or a rectangular shape. The four corner steel pipes are uniformly arranged and distributed at four angular positions of the combined column, so that an edge constraint body of the combined column is formed, the X direction and the Y direction of the combined column are shown in figure 1, the corner steel pipes along the X direction of the combined column are connected by welding through corrugated side plates 5, and the corner steel pipes along the Y direction of the combined column are connected by welding through flat webs 1.
As can be seen from the combination of FIG. 1 and FIG. 2, a hollow column structure is formed by the enclosure of four corner steel pipes 3, the flat web 1 and the corrugated side plate 5, and a square column structure is formed.
It is worth mentioning that the hollow part of the columnar structure is provided with a cross stiffening rib 2, and the end part of the cross stiffening rib 2 is connected with the corner steel pipe in a welding way. Referring to fig. 1, the cross stiffening rib 2 is formed by two stiffening plates arranged in a crossed manner, the number of specific tie plates (cross stiffening ribs) is set according to the corresponding structural stress requirement, and two corner steel pipes arranged diagonally are fixedly connected in a diagonal manner through the cross stiffening rib. The cross-shaped stiffening ribs are uniformly arranged in one or more along the vertical direction of the columnar structure.
As a further improvement of the present invention, the hollow part of the columnar structure is provided with a filler, for example, a filler made of concrete is filled into the hollow part of the columnar structure.
As a further improvement of the present invention, referring to fig. 1, a filler 4 is provided in the corner steel pipe, and the filler made of concrete, for example, is filled into the hollow inner cavity of the corner steel pipe.
It is noted that the thickness of the corrugated side panel 5 is 1/600 the height of the corrugated side panel 5.
The corner steel pipes of the four-corner steel pipe, the corrugated web plate and the flat side plate combined column can be rolled by adopting special equipment; the radius of the arc can be set at the corner part of the arc, and a certain radian is formed; when the section of radian is butted with a web plate, the section of radian just becomes a 'chamfer angle and a groove' for welding between two workpieces, and the section of radian is suitable for being welded by automatic or semi-automatic welding equipment, so that the trouble of secondary groove opening is avoided, and the welding quality is easier to ensure. Therefore, the 'four-corner steel tube, corrugated web plate and flat side plate combined column' is a novel column form which is simple to manufacture and reasonable in stress. The method is suitable for various multi-story and high-rise frame structures.
Referring to fig. 3, in a comparison diagram of a box column, a shell column, a four-corner steel pipe, a corrugated side plate and a flat side plate combined column (namely, a shell column (straight web plate) in the diagram) with the same construction cost, taking a column with the height of 8 meters as an example, the calculated length coefficients are all 1, the steel material adopts Q355B, the concrete strength grade adopts C50, and the thickness of the corrugated plate is 2.5 mm. On the premise of the same construction cost, the height-thickness ratio and the width-thickness ratio of the box column are limited to a certain extent due to stability, the section size of the box column is 500x500x16mm, the bearing capacity of the maximum bending moment M is 1550kN, and the bearing capacity of the maximum axial force N is 8080 kN.
The shell column has the cross section size of 800x800mm, the cross section of a four-corner steel pipe is 150x150x5mm, the bearing capacity of the maximum bending moment M is 3005kN, and the bearing capacity of the maximum axial force N is 21204 kN.
The combined column comprises a four-corner steel pipe, a corrugated side plate and a flat side plate, wherein the section size is 800x800mm, the section size of the four-corner steel pipe is 150x150x4.5mm, the bearing capacity of the maximum bending moment M is 3901kN, and the bearing capacity of the maximum axial force N is 21756 kN.
From the data, on the premise of the same manufacturing cost, the bearing capacity of the bending moment M of the four-corner steel pipe, corrugated side plate and flat side plate combined column is improved by 29.8% compared with that of a shell column and by 151% compared with that of a box column; the maximum axial force N bearing capacity of the four-corner steel tube, corrugated side plates and flat side plate combined column is improved by 2.6 percent compared with that of a shell column and is improved by 169 percent compared with that of a box column; under the condition of the same manufacturing cost, the bearing capacity of the four-corner steel tube, the corrugated side plate and the flat side plate combined column is greatly improved compared with that of the traditional box column;
from the above, the component type, the economy and the bearing capacity of the utility model are greatly improved.
Referring to fig. 4, in the comparison of the construction costs of the box column, the shell column, the quadrangular steel tube and corrugated side plate and flat side plate combined column (i.e. the shell column (straight web) in the figure), the square steel tube concrete column, and the steel tube concrete column under the same load, under the premise that the same load N is 2927kN and M is 2134kn.m (the corresponding column axial pressure ratio is 0.2):
the box column section 585x22mm, and the cost of a single column is 25513 yuan/root.
The sectional dimension of the shell column is 755x755mm, the section of the four-corner steel tube is 150x150x5.5mm, the thickness of the corrugated plate is 2.0mm, and the manufacturing cost of a single column is 14807 yuan/root.
The cross section size of the shell column + single-side flat web is 705x705mm, the cross section of the four-corner steel tube is 150x150x3.0mm, the thickness of the corrugated plate is 2.0mm, the thickness of the single-side flat web is 6mm, and the manufacturing cost of a single column is 13476 yuan/piece.
From the above data, it can be seen that under the same load N of 2927kN and M of 2134kn.m (corresponding to the column axial pressure ratio of 0.2), the cost of the single column of the four-corner steel tube and corrugated side plate and flat side plate combination column is reduced by 8.9% compared with that of the shell column and 47.2% compared with that of the box column.
From the above, the economy of the four-corner steel tube, corrugated side plate and flat side plate combined column is greatly improved compared with the traditional box column and shell column, and the stress performance is greatly improved, and the construction is easier.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (8)
1. The utility model provides a four corners steel pipe and ripple curb plate and flat curb plate combination post which characterized in that, it includes: the steel pipe comprises a flat web plate (1), a cross stiffening rib (2), a corner steel pipe (3) and a corrugated side plate (5);
four or more than four corner steel pipes (3) are uniformly arranged to form an edge restraint body;
the corner steel pipes along the X direction of the combined column are welded and connected by the corrugated side plates (5);
the corner steel pipes along the Y direction of the combined column are welded and connected by adopting the flat web (1);
the flat web plate (1), the corner steel pipe (3) and the corrugated side plate (5) are enclosed to form a hollow columnar structure, the hollow part of the columnar structure is provided with the cross stiffening rib (2), and the end part of the cross stiffening rib (2) is connected with the corner steel pipe.
2. The combination post of claim 1, wherein the corner steel tubes are square steel tubes.
3. The combination column of the four-corner steel tube, the corrugated side plate and the flat side plate as claimed in claim 1, wherein the hollow part of the columnar structure is provided with a filler.
4. The four-corner steel tube and corrugated side plate and flat side plate combination column according to claim 1, wherein the corner steel tube is internally provided with a filler (4).
5. The combination column of the four-corner steel pipe, the corrugated side plate and the flat side plate as claimed in claim 1, wherein the cross stiffening rib (2) is formed by at least two stiffening plates arranged in a crossed manner.
6. The combination column of the four-corner steel tube and the corrugated side plate and the flat side plate as claimed in claim 1, wherein the cross stiffening ribs (2) are uniformly arranged in one or more along the vertical direction of the columnar structure.
7. The combination column of the four-corner steel tube, the corrugated side plate and the flat side plate as claimed in claim 1, wherein two diagonally arranged corner steel tubes are fixedly connected in a diagonal manner by the cross-shaped stiffening rib (2).
8. The combination column of four-angle steel pipe and corrugated side plate and flat side plate as claimed in claim 1, wherein the thickness of the corrugated side plate (5) is 1/600 of the height of the corrugated side plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020160676.8U CN211775110U (en) | 2020-02-11 | 2020-02-11 | Four-corner steel pipe, corrugated side plate and flat side plate combined column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020160676.8U CN211775110U (en) | 2020-02-11 | 2020-02-11 | Four-corner steel pipe, corrugated side plate and flat side plate combined column |
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| Publication Number | Publication Date |
|---|---|
| CN211775110U true CN211775110U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020160676.8U Active CN211775110U (en) | 2020-02-11 | 2020-02-11 | Four-corner steel pipe, corrugated side plate and flat side plate combined column |
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| CN (1) | CN211775110U (en) |
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- 2020-02-11 CN CN202020160676.8U patent/CN211775110U/en active Active
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