CN220247194U - Connecting node of steel tube concrete superposed column and reinforced concrete beam - Google Patents
Connecting node of steel tube concrete superposed column and reinforced concrete beam Download PDFInfo
- Publication number
- CN220247194U CN220247194U CN202321366981.2U CN202321366981U CN220247194U CN 220247194 U CN220247194 U CN 220247194U CN 202321366981 U CN202321366981 U CN 202321366981U CN 220247194 U CN220247194 U CN 220247194U
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- reinforced concrete
- steel tube
- steel pipe
- concrete beam
- connecting section
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 97
- 239000010959 steel Substances 0.000 title claims abstract description 97
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 43
- 239000004567 concrete Substances 0.000 title claims abstract description 35
- 239000002131 composite material Substances 0.000 claims abstract description 34
- 239000000463 material Substances 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920001187 thermosetting polymer Polymers 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 10
- 239000003822 epoxy resin Substances 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 238000009417 prefabrication Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
Abstract
The utility model discloses a joint for connecting a steel tube concrete composite column and a reinforced concrete beam, which comprises a connecting sleeve, an upper steel tube, a lower steel tube and a reinforced concrete beam; the ends of the upper steel pipe and the lower steel pipe are provided with first connecting flanges, and stiffening ribs are arranged at the joint of the upper steel pipe and the lower steel pipe; the connecting sleeve is provided with second connecting flanges at the upper and lower three-point positions, and the second connecting flanges divide the connecting sleeve into an upper connecting section, a middle connecting section and a lower connecting section; the outer walls of the upper connecting section and the lower connecting section are wrapped with composite FRP materials to form a composite pipe, and then sleeved into the upper steel pipe and the lower steel pipe respectively; the middle connecting section is provided with uniform round holes, the number of the uniform round holes is the same as that of the longitudinal ribs in the reinforced concrete beam, and the joint connection of the steel tube concrete superposed column and the reinforced concrete beam is realized by penetrating the longitudinal ribs through the round holes.
Description
Technical Field
The utility model relates to the technical field of building structures, in particular to a connecting node of a steel tube concrete superposed column and a reinforced concrete beam.
Background
The reinforced concrete beam has very wide application in building structures, and the steel tube concrete composite column has high bearing capacity, good ductility and fire resistance and is gradually applied to building structures. At the junction of steel pipe concrete composite column and reinforced concrete roof beam, because the atress is comparatively complicated, directly open pore construction is comparatively difficult on the steel pipe, and easily causes the cross-section trompil loss rate to surpass the standard and stipulate the allowed value and need redesign or formulate the reinforcing measure scheduling problem. In the prior art, the connection of the reinforced concrete beam and the steel tube concrete composite column is referred to in China patent No. 214738742U, the reinforcing structure is complex, two reinforcing hoop frame plates and a plurality of connecting pieces are additionally arranged, and meanwhile, the connection joint is not subjected to heat insulation treatment, so that the connection part is easy to deform due to heat.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, a joint structure of a steel tube concrete composite column and a reinforced concrete beam is complex, heat insulation treatment is not performed and the like.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the joint for connecting the steel tube concrete composite column and the reinforced concrete beam comprises a connecting sleeve, an upper steel tube, a lower steel tube and the reinforced concrete beam; the ends of the upper steel pipe and the lower steel pipe are provided with first connecting flanges, and stiffening ribs are arranged at the joint of the upper steel pipe and the lower steel pipe; the connecting sleeve is provided with second connecting flanges at the upper and lower three-point positions, and the second connecting flanges divide the connecting sleeve into an upper connecting section, a middle connecting section and a lower connecting section; the outer walls of the upper connecting section and the lower connecting section are wrapped with composite FRP materials to form a composite pipe, and then sleeved into the upper steel pipe and the lower steel pipe; the middle connecting section is provided with uniform round holes, the number of the uniform round holes is the same as that of the longitudinal ribs in the reinforced concrete beam, and the joint connection of the steel tube concrete superposed column and the reinforced concrete beam is realized by penetrating the longitudinal ribs through the round holes.
Preferably, the first connection flange is welded to the lower end portion of the upper steel pipe and the upper end portion of the lower steel pipe, and the second connection flange is welded to the connection sleeve.
Preferably, the joint of the first connecting flange is provided with four stiffening ribs which are arranged at 90 degrees in a pairwise interval, the stiffening ribs are right trapezoid steel plates, the lower bottom side length and the vertical side length are the same as the difference between the inner diameter and the outer diameter of the first connecting flange, the upper bottom side length is half of the lower bottom side length, and the lower bottom side and the vertical side are welded on the first connecting flange and the steel pipes respectively through groove welding.
Preferably, the composite FRP material comprises an FRP material in an inner layer and thermosetting resin wrapped on the outer surface of the FRP material.
The joint has the advantages that the joint has the outstanding characteristics that firstly, the steel pipe in the steel pipe concrete composite column is divided into two parts at the joint of the steel pipe and the reinforced concrete beam, so that the joint construction is facilitated; dividing the connecting sleeve into an upper connecting section, a middle connecting section and a lower connecting section, wherein the upper connecting section and the lower connecting section play a role in connecting with a steel pipe, and the middle connecting section plays a role in connecting with a reinforced concrete beam; thirdly, the connecting sleeve adopts a high-strength thick-wall steel pipe, so that the influence of the problems of bearing capacity reduction, stress concentration and the like caused by steel pipe perforation can be effectively reduced; fourthly, the upper connecting section and the lower connecting section of the connecting sleeve are sleeved with the upper steel pipe and the lower steel pipe respectively to form a three-layer composite pipe after the composite pipe is formed by the connecting sleeve and the FRP material, so that the steel pipe is connected with the sleeve more tightly, and the local buckling and the thermal deformation of the steel pipe in the joint connecting area are effectively avoided. The connecting node has good stress performance, simple structure and convenient construction, and can conveniently realize the connection of the steel tube concrete superposed column and the reinforced concrete beam. The utility model improves the applicability of the connection of the steel tube concrete composite column and the reinforced concrete beam in the building structure, and has wide application prospect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and that other related drawings can be obtained according to these drawings without the inventive effort of the first person skilled in the art.
Fig. 1 is a perspective view of a joint between a concrete filled steel tube composite column and a reinforced concrete beam;
FIG. 2 is a detailed view of the construction of steel pipes in a steel pipe concrete composite column;
FIG. 3 is a detailed view of the construction of a connecting sleeve of a connecting joint of a concrete filled steel tube composite column and a reinforced concrete beam;
fig. 4 is a sectional view of the reinforced concrete beam and an elevation view of the assembled steel pipe and the connecting sleeve;
fig. 5 is a sectional view of a reinforced concrete beam, and a sectional view of the reinforced concrete beam after the steel pipe and the connecting sleeve are assembled;
fig. 6 is a perspective view of the final effect of the joint between the steel tube concrete composite column and the reinforced concrete beam;
fig. 7 is a sectional view (1) near the top of the column, a sectional view (2) at the junction of the upper steel pipe and the first connecting flange, and a sectional view (3) in the column after the construction of the concrete filled steel tube column.
In the figure: 1-feeding a steel pipe; 2-connecting the sleeve; 3-lower steel pipe; 4-reinforced concrete beams; 5-a first connection flange; 6-a second connection flange; 8-stiffening ribs; 9-a bolt; 41-a reinforced concrete beam middle longitudinal bar; 7-epoxy resin; 71-FRP material (glass fiber reinforced plastics); 21-connecting the upper section of the sleeve; 22-connecting the middle section of the sleeve; 23-connecting the lower section of the sleeve; 51-a first connection flange screw hole; 61-a second connecting flange screw hole; 101-overlapping column longitudinal ribs; 102-folding column stirrups; 221-a tendon passing hole.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by the first skilled in the art without inventive effort, are intended to be within the scope of the present utility model, based on the embodiments herein. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by the first skilled in the art without inventive effort, are intended to be within the scope of the present utility model, based on the embodiments herein.
In the description of the present utility model, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by a first person skilled in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply indicating that the first feature is at a lower level than the second feature.
Examples
The following is only a preferred embodiment of the present utility model, and the scope of the present utility model is not limited to the following examples, but all technical solutions belonging to the concept of the present utility model are within the scope of the present utility model.
Referring to fig. 1-5 of the specification, the embodiment provides a joint for connecting a concrete filled steel tube composite column and a reinforced concrete beam, which comprises an upper steel tube 1, a connecting sleeve 2, a lower steel tube 3 and a reinforced concrete beam 4. The ends of the upper steel pipe 1 and the lower steel pipe 3 of the steel pipe concrete laminated column are respectively provided with a first connecting flange 5, and stiffening ribs are welded at the joint every two times at a 90-degree interval. The upper and lower trisection points of the connecting sleeve 2 are respectively provided with a second connecting flange 6, and the connecting sleeve is divided into an upper connecting section 21, a middle connecting section 22 and a lower connecting section 23. The middle connecting section 22 is provided with uniform round holes the same as the longitudinal ribs 41 in the reinforced concrete beam 4 in number. The outer walls of the upper connecting section 21 and the lower connecting section 23 are coated with a layer of epoxy resin 7, then a layer of FRP material 71 is bonded to form a composite pipe, after bonding is completed, the outer surface of the FRP is coated with a layer of epoxy resin, and the upper steel pipe and the lower steel pipe are sleeved to form a three-layer composite pipe, after bonding is completed, the upper steel pipe 1 is tightly sleeved with the upper connecting section 21, the lower steel pipe 3 is tightly sleeved with the lower connecting section 23, and the sleeved part of the steel pipe is effectively prevented from buckling locally. After the sleeving is finished, the first connecting flange 5 and the second connecting flange 6 are connected by using bolts 9, namely the connecting sleeve 2 is connected with the upper steel pipe 1 and the lower steel pipe 3. And penetrating the longitudinal ribs 41 into the designated positions in the reserved penetrating ribs 221 corresponding to the middle connecting section 22, and then supporting the mold and pouring to realize node connection. The construction method of the connection node of the steel pipe concrete composite column and the reinforced concrete beam comprises the following two stages:
factory prefabrication stage: referring to fig. 2 of the specification, first, eight uniform screw holes 61 are formed at designated positions on a first connecting flange 5, then welded to the ends of an upper steel pipe 1 and a lower steel pipe 3, respectively, and stiffening ribs 9 are welded at the joints, thereby completing the factory prefabrication stage of the steel pipes.
Referring to fig. 3 of the specification, the second connecting flange 6 is provided with the same number of screw holes 51 at the same position as the first connecting flange 5 and then welded at the positions of upper and lower three points of the connecting sleeve respectively, so that the connecting sleeve is divided into an upper connecting section 21, a middle connecting section 22 and a lower connecting section 23; the middle connecting section 22 is uniformly provided with the same number of the reinforcement penetrating holes 221 as the longitudinal reinforcements 41 in the reinforced concrete beam 4, namely, the factory prefabrication stage of the connecting sleeve is completed.
And (3) in the field construction stage: firstly, coating a layer of epoxy resin 7 on the outer walls of an upper connecting section 21 and a lower connecting section 23 of a connecting sleeve 2, bonding a layer of FRP material 71 to form a composite pipe, coating a layer of epoxy resin 7 on the surface of the FRP material, and sleeving an upper steel pipe 1 and a lower steel pipe 2 respectively; then, the steel pipe and the connecting sleeve 2 are connected into a whole through the first connecting flange 5 and the second connecting flange 6 by adopting bolts 9 on site; then, the longitudinal ribs 41 in the reinforced concrete beam 4 pass through the reserved rib penetrating holes 221 on the middle connecting section of the connecting sleeve; and finally, supporting the reinforced concrete beam 4, pouring the concrete in the steel tube of the steel tube concrete composite column and the concrete of the reinforced concrete beam 4, and after the strength of the concrete reaches the requirement, supporting the mould and pouring the concrete outside the steel tube of the steel tube concrete composite column. And when the strength of the concrete reaches the requirement, completing the site construction stage, and referring to figure 6 of the specification. The concrete structure of the steel pipe concrete composite column after construction is completed is shown in the attached figure 7 of the specification.
The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.
Claims (4)
1. The connecting joint of the steel tube concrete composite column and the reinforced concrete beam is characterized by comprising a connecting sleeve, an upper steel tube, a lower steel tube and the reinforced concrete beam; the ends of the upper steel pipe and the lower steel pipe are provided with first connecting flanges, and stiffening ribs are arranged at the joint of the upper steel pipe and the lower steel pipe; the connecting sleeve is provided with second connecting flanges at the upper and lower three-point positions, and the second connecting flanges divide the connecting sleeve into an upper connecting section, a middle connecting section and a lower connecting section; the outer walls of the upper connecting section and the lower connecting section are wrapped with composite FRP materials to form a composite pipe, and then sleeved into the upper steel pipe and the lower steel pipe respectively; the middle connecting section is provided with uniform round holes, the number of the uniform round holes is the same as that of the longitudinal ribs in the reinforced concrete beam, and the joint connection of the steel tube concrete superposed column and the reinforced concrete beam is realized by penetrating the longitudinal ribs through the round holes.
2. The concrete filled steel tube composite column and reinforced concrete beam connection node of claim 1, wherein the first connection flange is welded to the lower end portion of the upper steel tube and the upper end portion of the lower steel tube, and the second connection flange is welded to the connection sleeve.
3. The joint of a concrete filled steel tube composite column and a reinforced concrete beam according to claim 1, wherein four stiffening ribs are arranged at the joint of the first connecting flange at intervals of 90 degrees, the stiffening ribs are right trapezoid steel plates, the difference between the lower bottom side length and the vertical side length is the same as the difference between the inner diameter and the outer diameter of the first connecting flange, the upper bottom side length is half of the lower bottom side length, and the lower bottom side and the vertical side are welded on the first connecting flange and the steel tube respectively through groove welding.
4. A reinforced concrete filled steel tube composite column and reinforced concrete beam connection node as recited in claim 1, wherein said composite FRP material comprises an FRP material in an inner layer and a thermosetting resin wrapped around an outer surface of said FRP material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321366981.2U CN220247194U (en) | 2023-05-31 | 2023-05-31 | Connecting node of steel tube concrete superposed column and reinforced concrete beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321366981.2U CN220247194U (en) | 2023-05-31 | 2023-05-31 | Connecting node of steel tube concrete superposed column and reinforced concrete beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220247194U true CN220247194U (en) | 2023-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321366981.2U Active CN220247194U (en) | 2023-05-31 | 2023-05-31 | Connecting node of steel tube concrete superposed column and reinforced concrete beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220247194U (en) |
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2023
- 2023-05-31 CN CN202321366981.2U patent/CN220247194U/en active Active
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