CN216552704U - Local concrete steel pipe column with branch pipes - Google Patents
Local concrete steel pipe column with branch pipes Download PDFInfo
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- CN216552704U CN216552704U CN202123316811.7U CN202123316811U CN216552704U CN 216552704 U CN216552704 U CN 216552704U CN 202123316811 U CN202123316811 U CN 202123316811U CN 216552704 U CN216552704 U CN 216552704U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 60
- 239000010959 steel Substances 0.000 title claims abstract description 60
- 239000004567 concrete Substances 0.000 title claims abstract description 57
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 238000005192 partition Methods 0.000 claims description 26
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 239000003351 stiffener Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 2
- 230000005574 cross-species transmission Effects 0.000 claims 2
- 125000006850 spacer group Chemical group 0.000 claims 2
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000035515 penetration Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a local concrete steel pipe column with branch pipes, which comprises an inner pipe, the branch pipes and a main pipe, wherein the branch pipes and the main pipe are fixedly connected; one end of the inner tube is fixed on one end of the main tube through the first sealing plate in a sealing mode, the other end of the inner tube is fixedly connected to the other end of the main tube through the second sealing plate, and the other end of the inner tube is not sealed.
Description
Technical Field
The utility model relates to the technical field of building equipment, in particular to a local concrete steel pipe column with branch pipes.
Background
In recent decades, due to the development and application of super high-rise buildings and large-span structures, the steel pipe concrete can exert the respective advantages of steel and concrete, so that the steel pipe concrete is favored by a large number of researchers, and scientific research achievements and engineering applications are increased year by year. Along with the improvement of the spanning capability of buildings (structures), the application amount of space pipe truss structure systems is increased year by year, the spanning capability is strong, the rigidity is high, the branch pipes are welded on the main pipe, the force transfer is clear, and the construction is rapid. However, the concentrated force generated by the branch pipes can cause the penetration joint part intersected with the main pipe to generate tensile fracture or local buckling failure, so that the main pipe needs to be structurally reinforced in the intersection area of the branch pipes and the main pipe so as to improve the bearing capacity of the main pipe.
For the lattice multi-limb column, the branch column is damaged due to the fact that the branch pipe serves as a connecting member between main pipes, the branch column bears axial pressure and even a bending member, and the section of the column is generally large. Under the action of the concentrated force of the connecting member, the stress of the intersection area is complex, and particularly, the failure damage of the node part is easy to occur under the action of an earthquake, so that the earthquake-proof design rule of a strong node and a weak member is difficult to meet, and the connecting part needs to be constructed and reinforced on the basis, so that the local bearing capacity of the main pipe connecting area is improved. The concrete is filled in the intersection area of the steel pipe and the connecting member, so that the radial rigidity of the column can be effectively improved, and the bearing capacity of the column is greatly improved. However, since the concrete is filled in the opening of the steel tube outside the steel tube concrete, the stress of the outside steel tube is easily discontinuous, and a weak area of stress is caused. When the external load is increased, the external load is firstly destroyed at the opening, and a serious safety problem is brought to the engineering.
Patent CN104863383A discloses a round steel tube joint reinforcing method using filled concrete. Which belongs to the technical field of reinforcement of in-service steel pipe structure nodes. The reinforcing mode of filling concrete in the round steel pipe joint comprises a special plastic bag and fine aggregate concrete for filling. Holes are formed in the non-stress concentration area of the main pipe, a plastic bag is plugged into the main pipe, and air is filled into the plastic bag to enable the plastic bag to expand at a node. And then, pouring the fine stone concrete mixed in advance into the balloon, and after the fine stone concrete is hardened, welding the hollow hole on the main pipe by using a steel sheet. The method solves the difficult problem of reinforcing the node by pouring concrete, but even if the hole is formed in a non-stress concentration area, the hole is still a disadvantageous position when the load is large enough, and the hole is easy to be damaged firstly under the action of an earthquake, so that the whole node is constructed into potential safety hazard.
The patent CN113530084A discloses a concrete-filled steel tubular column with T-shaped stiffening ribs on the inner side of a rectangular steel tube, which is manufactured by cutting four steel plates for manufacturing the tube wall according to a preset size, welding the T-shaped stiffening ribs at preset positions along the longitudinal direction, and then splicing to form a square steel tube. The square concrete-filled steel tube that this mode formed sets up vertical T type stiffening rib along every limit in the steel pipe wall inboard, forms ribbed square concrete-filled steel tube column, though can effectively delay the local bucking of pipe wall, and the reinforcing pipe wall improves bearing capacity to the restraint of concrete, but adopts the steel pipe that four steel sheet concatenations formed great at the load, and the welding seam is cracked easily.
Patent CN113445670A discloses a prefabricated composite steel pipe concrete lattice column, comprises the lattice formula connecting piece between the prefabricated two steel pipe intermediate layer concrete column limbs, and prefabricated column limb outside steel pipe passes through the bolt and is connected with the lattice formula connecting piece, and the intermediate layer concrete between the inside and outside steel pipe of column limb adopts high performance concrete. Although the steel distribution rate of the column member can be effectively reduced by the double-steel-pipe interlayer confined concrete, the steel pipe concrete structure is reinforced by adopting the method, the method is only suitable for vertical steel columns, if the method is used for reinforcing inclined columns with branch pipes, the self weight of the columns is increased, and meanwhile, the waste of building materials is caused.
In summary, in the conventional steel pipe column, holes are formed in the surface of the steel pipe, and concrete is poured locally, which may cause stress concentration places on the steel pipe, and may cause engineering problems such as fracture or bending deformation.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a local concrete steel pipe column with branch pipes, which solves the engineering problems that a common steel pipe column is provided with holes on the surface of a steel pipe, and concrete is locally poured, so that stress concentration places can be left on the steel pipe, and the steel pipe is broken or bent to deform.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the local concrete steel pipe column with the branch pipe comprises an inner pipe, and a branch pipe and a main pipe which are fixedly connected, wherein the axis of the main pipe and the axis of the branch pipe form an included angle, a plurality of overflow assemblies are uniformly distributed on the inner pipe, and an annular partition plate is arranged on the inner pipe between the two overflow assemblies; one end of the inner tube is fixed on one end of the main tube through the first sealing plate in a sealing mode, the other end of the inner tube is fixedly connected to the other end of the main tube through the second sealing plate, and the other end of the inner tube is not sealed.
Further, the outer diameter of the annular partition plate is equal to the inner diameter of the main pipe.
Further, the distance between any two adjacent annular partition plates is equal.
Further, the overflow assembly comprises a plurality of overflow holes circumferentially arranged on the inner pipe.
Further, the number of overflow holes is four.
Further, the annular partition plate penetrates through the inner pipe and is fixed on the inner pipe through the reinforcing assembly.
Furthermore, strengthen the subassembly and include a plurality of stiffening rib, the length of stiffening rib equals with the radius difference of annular baffle, and stiffening rib's one end is fixed on the inner tube, and the other end flushes with the side of annular baffle, and the top surface is fixed on the bottom surface of annular baffle.
Further, the first closing plate is flush with one end of the main pipe.
Further, the second shrouding is for leaking hopper-shaped, and the less mouth end of second shrouding communicates with the other end of inner tube, and great end is fixed on the other end of being responsible for.
Further, the inner pipe, the stiffeners, the branch pipes, and the main pipe are all made of Q355B type steel.
The utility model has the beneficial effects that: in this scheme, the annular baffle that sets up will be responsible for and divide into a plurality of sub-cavitys with the cavity between the inner tube, from the inner tube filling concrete through the excessive hole of every sub-cavity to sub-cavity filling concrete, improve the local stable bearing capacity of concrete steel tubular column and reduce the dead weight, correspond with "part" in the subject name. Meanwhile, an annular partition plate is fixed on the inner pipe, so that the purpose of separating a pouring area is achieved, and concrete pouring in a connecting area of the steel pipe component without connection is avoided; the annular partition plate can also play a role in locally reinforcing the inner pipe column. The inner pipe and the main pipe form a double-pipe stress system, and the bearing capacity can be obviously improved.
In addition to the technical problems addressed by the present invention, the technical features constituting the technical solutions, and the advantageous effects brought by the technical features of the technical solutions described above, other technical problems that the present invention can solve, other technical features included in the technical solutions, and advantageous effects brought by the technical features will be described in further detail in the detailed description.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic structural view of a local concrete steel pipe column with branch pipes according to the present invention.
FIG. 2 is a schematic view of the structure of the inner pipe, the annular partition, the stiffening ribs and the overflow holes.
FIG. 3 is a schematic view of the structure of an annular baffle and a stiffener.
Wherein: 1. a second seal plate; 2. an inner tube; 3. an annular partition plate; 4. a stiffening rib; 5. an overflow hole; 6. a first seal plate; 7. a branch pipe; 8. a main pipe.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a local concrete steel pipe column with branch pipes, which includes an inner pipe 2, and a branch pipe 7 and a main pipe 8 fixedly connected to each other, wherein the axes of the main pipe 8 and the branch pipe 7 form an included angle. A plurality of overflow assemblies are uniformly distributed on the inner pipe 2, and an annular partition plate 3 is arranged on the inner pipe 2 between the two overflow assemblies; one end of the inner tube 2 is fixed at one end of the main tube 8 in a sealing way through the first sealing plate 6, the other end of the inner tube 2 is fixedly connected with the other end of the main tube 8 through the second sealing plate 1, and the other end of the inner tube 2 is not sealed and used for adding concrete between the main tube 8 and the inner tube 2.
The outer diameter of the annular partition plate 3 is equal to the inner diameter of the main pipe 8, and the annular partition plate 3 and the main pipe 8 are preferably in clearance fit, so that air in the main pipe 8 can be discharged conveniently, and meanwhile, the inner pipe 2 can be installed conveniently. The distance between any two adjacent annular partition plates 3 is equal. The stiffening ribs 4 arranged on the annular partition plate 3 mainly play a role in strengthening the bearing performance of the annular partition plate 3, and further strengthen the bearing performance of the whole concrete column.
The overflow assembly comprises a plurality of overflow holes 5 circumferentially arranged on the inner pipe 2, and the number of the overflow holes 5 is preferably four, so that the efficiency of filling concrete into the outer steel pipe is improved, and the concrete vibration compactness is improved. Specifically, the top of the overflow hole 5 is flush with the bottom surface of the annular partition 3.
The annular partition 3 passes through the inner tube 2 and is fixed to the inner tube 2 by a reinforcing assembly. The reinforcing component comprises a plurality of stiffening ribs 4, the length of each stiffening rib 4 is equal to the radius difference of the annular partition plate 3, one end of each stiffening rib 4 is fixed on the inner pipe 2, the other end of each stiffening rib is flush with the side face of the annular partition plate 3, and the top face of each stiffening rib is fixed on the bottom face of the annular partition plate 3. After the annular partition plate 3 and the stiffening rib 4 and the annular partition plate 3 and the inner tube 2 are welded in advance, the whole body is installed in the main tube 8 and is welded at one end of the main tube 8 through the first sealing plate 6.
The first sealing plate 6 is flush with one end of the main pipe 8. The second shrouding 1 is for leaking hopper-shaped, and the less mouth end of second shrouding 1 communicates with the other end of inner tube 2, and great end is fixed on the other end of being responsible for 8.
The inner pipe 2, the stiffeners 4, the branch pipes 7 and the main pipe 8 are all made of Q355B steel, and the fixed connection can be welded. The fine aggregate concrete filled in the main pipe 8 has low requirement on strength, and the concrete with the strength of C20 can be adopted.
Open excessive hole 5 on inner tube 2, can fill concrete and finally form the concrete column in every subcavity through every excessive hole 5, avoided being responsible for 8 surperficial trompils, the unfavorable position of bringing, set up annular baffle 3 on inner tube 2, and weld stiffening rib 4 on the baffle, can effectively increase the bearing capacity of concrete column, adopt this construction method, it is not high to expect much to the concrete intensity, the engineering cost has been reduced, and is convenient and practical, and the operation is simple and convenient, reduce manpower output, the reduction of erection time.
For the lattice type member, under the concentrated force action of the connecting member, the stress of the intersection area is complex, and particularly, the failure damage of the node part is easy to occur under the action of an earthquake, so that the connecting part is reinforced by adopting a mode of filling concrete inside, the local bearing capacity of the connecting area of the main pipe 8 is improved, the respective advantages of steel and concrete are fully exerted, the consumption of the steel is reduced, and the construction cost is reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a take local concrete steel pipe post of branch pipe, includes inner tube and fixed connection's branch pipe and is responsible for, the axis of being responsible for and branch pipe is an contained angle, its characterized in that:
the inner pipe is provided with a plurality of overflow assemblies, and an annular partition plate is arranged on the inner pipe between the two overflow assemblies; one end of the inner tube is fixed at one end of the main tube through the first sealing plate in a sealing mode, the other end of the inner tube is fixedly connected at the other end of the main tube through the second sealing plate, and the other end of the inner tube is not sealed.
2. The partial concrete steel pipe column with branch pipes according to claim 1, wherein an outer diameter of the annular partition plate is equal to an inner diameter of the main pipe.
3. The branched partial concrete steel pipe column according to claim 1, wherein a distance between any two adjacent annular spacers is equal.
4. The lateral partial concrete steel pipe string according to claim 1, wherein the spill over assembly comprises a plurality of spill over holes circumferentially disposed on the inner pipe.
5. The lateral concrete steel pipe column according to claim 4, wherein the number of the overflow holes is four.
6. The lateral partial concrete steel pipe string according to claim 1, wherein the annular spacer passes through the inner pipe and is fixed to the inner pipe by a reinforcement assembly.
7. The local concrete steel pipe column with branch pipes according to claim 6, wherein the reinforcing assembly comprises a plurality of stiffening ribs, the length of each stiffening rib is equal to the radius difference of the annular partition plate, one end of each stiffening rib is fixed on the inner pipe, the other end of each stiffening rib is flush with the side surface of the annular partition plate, and the top surface of each stiffening rib is fixed on the bottom surface of the annular partition plate.
8. The partial concrete steel pipe string with branch pipes according to claim 1, wherein the first closing plate is flush with one end of the main pipe.
9. The local concrete steel pipe column with branch pipes according to claim 1, wherein the second sealing plate is funnel-shaped, a smaller opening end of the second sealing plate is communicated with the other end of the inner pipe, and a larger end of the second sealing plate is fixed at the other end of the main pipe.
10. The branched partial concrete steel pipe column according to claim 7, wherein the inner pipe, the stiffeners, the branch pipes and the main pipe are made of Q355B type steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123316811.7U CN216552704U (en) | 2021-12-27 | 2021-12-27 | Local concrete steel pipe column with branch pipes |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123316811.7U CN216552704U (en) | 2021-12-27 | 2021-12-27 | Local concrete steel pipe column with branch pipes |
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| Publication Number | Publication Date |
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| CN216552704U true CN216552704U (en) | 2022-05-17 |
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| CN202123316811.7U Active CN216552704U (en) | 2021-12-27 | 2021-12-27 | Local concrete steel pipe column with branch pipes |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117627278A (en) * | 2024-01-24 | 2024-03-01 | 中国船舶集团国际工程有限公司 | Concrete filled steel tubular column with concrete shrinkage ring resisting device and installation method |
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2021
- 2021-12-27 CN CN202123316811.7U patent/CN216552704U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117627278A (en) * | 2024-01-24 | 2024-03-01 | 中国船舶集团国际工程有限公司 | Concrete filled steel tubular column with concrete shrinkage ring resisting device and installation method |
| CN117627278B (en) * | 2024-01-24 | 2024-04-26 | 中国船舶集团国际工程有限公司 | Concrete filled steel tubular column with concrete shrinkage ring resisting device and installation method |
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