CN209989955U - Conversion node of upper steel pipe column and lower floor reinforced concrete column - Google Patents
Conversion node of upper steel pipe column and lower floor reinforced concrete column Download PDFInfo
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- CN209989955U CN209989955U CN201920260126.0U CN201920260126U CN209989955U CN 209989955 U CN209989955 U CN 209989955U CN 201920260126 U CN201920260126 U CN 201920260126U CN 209989955 U CN209989955 U CN 209989955U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 126
- 239000010959 steel Substances 0.000 title claims abstract description 126
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 98
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 61
- 239000004567 concrete Substances 0.000 claims abstract description 23
- 230000007704 transition Effects 0.000 claims description 11
- 238000012546 transfer Methods 0.000 claims description 2
- 230000009466 transformation Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 26
- 239000011440 grout Substances 0.000 abstract description 14
- 230000002349 favourable effect Effects 0.000 abstract description 6
- 210000003205 muscle Anatomy 0.000 description 27
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009415 formwork Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 2
- 241000587161 Gomphocarpus Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a conversion node of an upper steel pipe column and a lower reinforced concrete column, which is a connection point of the upper steel pipe column and the lower reinforced concrete column, wherein the upper steel pipe column is inserted into a conversion node area which is connected with a reinforced concrete beam along the horizontal direction; in the conversion node area, a ring plate is welded on the inner side of the upper-layer steel pipe column, grouting holes are formed in the ring plate, and steel pipe studs are welded on at least one of the inner side and the outer side of the upper-layer steel pipe column. According to the utility model discloses a conversion node of upper steel-pipe column and lower floor's reinforced concrete column is favorable to passing power on the radial direction of upper steel-pipe column through the crown plate, is convenient for pour into concrete in the upper steel-pipe column through the grout hole, can pass the atress of upper steel-pipe column through the steel pipe pintle, and the structure is reliable and construction convenience.
Description
Technical Field
The utility model belongs to the technical field of building engineering and integrated configuration technique and specifically relates to a conversion node of upper steel-pipe column and lower floor reinforced concrete column is related to.
Background
In the related art, in recent years, many building structures have adopted a structural form in which a reinforced concrete column is provided at the bottom and a steel pipe column is provided at the top. The focus of attention has been on what kind of conversion node structure should be adopted at the joint of the upper steel pipe column, the lower reinforced concrete column and the reinforced concrete frame beam. In the existing engineering, a steel pipe is inserted into a concrete column downwards, and the inserting depth is the height of one floor. Although the method can ensure the structural safety, the method is too conservative, wastes steel are serious, and the construction is complicated and difficult. Therefore, how to optimize the structure of the conversion node on the basis of ensuring good stress performance and safe and reliable structure, reduce the insertion depth of the steel pipe and enable the construction to be simple and convenient is the key for better development and application of the conversion node.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a conversion node of upper steel-pipe column and lower floor reinforced concrete column, the atress performance of conversion node is superior, safe and reliable and construction convenience.
Another object of the utility model is to provide a construction method of conversion node of upper steel-pipe column and lower floor reinforced concrete column.
According to the utility model discloses the conversion node of upper steel-pipe column and lower floor reinforced concrete column of first aspect embodiment, the conversion node is the tie point of upper steel-pipe column and lower floor reinforced concrete column, the upper steel-pipe column inserts in the conversion node region, the conversion node region is connected with the reinforced concrete roof beam along the horizontal direction; in the conversion node area, a ring plate is welded on the inner side of the upper-layer steel pipe column, grouting holes are formed in the ring plate, and steel pipe studs are welded on at least one of the inner side and the outer side of the upper-layer steel pipe column.
According to the utility model discloses conversion node of upper steel-pipe column and lower floor's reinforced concrete column is favorable to passing power on the radial direction of upper steel-pipe column through the crown plate, is convenient for pour into concrete in the upper steel-pipe column through the grout hole, can pass the atress of upper steel-pipe column through the steel pipe pintle, and the structure is reliable and construction convenience.
In addition, according to the utility model discloses the conversion node of upper steel-pipe column and lower floor reinforced concrete column still has following additional technical characterstic:
according to some embodiments of the utility model, the rectangle is personally submitted to the transversal of reinforced concrete roof beam, upper steel-pipe column inserts conversion node area's the degree of depth is not more than reinforced concrete roof beam's height.
Further, reinforced concrete post includes that a plurality of posts indulge the muscle, a plurality of posts indulge the muscle along encircleing reinforced concrete post's axis direction interval arrangement, the post is indulged the muscle and is arranged in the pin fin within range of steel pipe stud, the top that the muscle was indulged to the post is located reinforced concrete beam's inside.
Furthermore, when the diameter of the upper-layer steel pipe column is smaller than that of the lower-layer reinforced concrete column, the column longitudinal ribs are arranged on the outer side of the upper-layer steel pipe column; and when the diameter of the upper-layer steel pipe column is larger than that of the lower-layer reinforced concrete column, the column longitudinal rib is arranged on the inner side of the upper-layer steel pipe column.
Optionally, in the conversion node area, a preformed hole is formed in the upper-layer steel pipe column and penetrates through the side wall of the upper-layer steel pipe column in the thickness direction.
Further, the reinforced concrete roof beam includes that upper portion indulges the muscle and the muscle is indulged to the lower part, muscle and lower part are indulged on upper portion and are indulged the muscle parallel and spaced apart setting, the muscle is suitable for passing is indulged on upper portion the preformed hole, the muscle is indulged along the horizontal direction in the lower part and is passed lower floor's reinforced concrete column and link up the reinforced concrete roof beam sets up.
Further, the upper longitudinal ribs are provided on an upper surface of the annular plate in an axial direction of the upper-layer steel-pipe column.
Optionally, the top of the column longitudinal rib is lower than the lower surface of the ring plate.
According to some embodiments of the present invention, the grouting hole is a circular hole or a polygonal hole, and the grouting hole and the upper steel pipe column are coaxial; and concrete with a preset height is poured into the upper layer of steel pipe column at the upper part of the conversion node area, and the preset height does not exceed the diameter of the upper layer of steel pipe column.
According to the utility model discloses the construction method of conversion node of upper steel-pipe column and lower floor reinforced concrete column of second aspect embodiment, construction method includes following step: s10: transporting the steel member prefabricated in a factory to a construction site and installing the steel member in place; s20: positioning column longitudinal bars of a lower layer reinforced concrete column, and binding first reinforcing steel bars of the lower layer reinforced concrete column, wherein the first reinforcing steel bars surround the column longitudinal bars and comprise a plurality of reinforcing steel bars which are arranged at intervals along the longitudinal direction; s30: penetrating the upper longitudinal bar of the reinforced concrete beam through the preformed hole and placing in place, penetrating the lower longitudinal bar of the reinforced concrete beam along the whole beam, and binding a second steel bar of the reinforced concrete beam; s40: and (5) supporting a formwork, and pouring concrete to finish construction.
The utility model discloses have following advantage and outstanding effect for prior art: firstly, the conversion of upper steel-pipe column and lower floor reinforced concrete column at the conversion node has been realized high-efficiently swiftly, has optimized the way of traditional steel pipe down-inserting greatly, and construction convenience, material saving. Secondly, the column longitudinal ribs and the upper layer steel pipe column adopt indirect force transmission, and complex construction caused by direct connection is avoided. Thirdly, the lower longitudinal bars of the reinforced concrete beam are communicated along the whole beam by a method of forming the preformed holes in the side wall of the upper-layer steel pipe column, so that the stress is clear, the force transfer is direct, and the construction is convenient. Fourthly, the upper layer steel pipe column has a constraint effect on the concrete in the core area of the node, and the stress performance of the upper layer steel pipe column can be obviously improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of a transition joint of an upper steel pipe column and a lower reinforced concrete column according to an embodiment of the present invention, wherein the diameter of the upper steel pipe column is smaller than that of the lower reinforced concrete column;
FIG. 2 is a cross-sectional view taken along line I-I of FIG. 1;
FIG. 3 is a cross-sectional view taken along line II-II of FIG. 1;
fig. 4 is a schematic view of a transition joint between an upper steel pipe column and a lower reinforced concrete column according to another embodiment of the present invention, wherein the diameter of the upper steel pipe column is larger than that of the lower reinforced concrete column;
FIG. 5 is a cross-sectional view taken along line I-I of FIG. 4;
fig. 6 is a sectional view taken along line II-II in fig. 4.
Reference numerals:
a conversion node 100 of the upper steel pipe column and the lower reinforced concrete column,
upper steel-pipe column 1, lower floor's reinforced concrete column 2, reinforced concrete roof beam 3, crown plate 4, grout hole 5, steel pipe stud 6, preformed hole 7, muscle 8 is indulged on upper portion, and muscle 9 is indulged to the lower part, and muscle 10, concrete 11 are indulged to the post.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
The following describes a conversion node 100 of an upper steel pipe column and a lower reinforced concrete column according to an embodiment of the present invention with reference to the drawings.
Referring to fig. 1 and 4, according to the utility model discloses the conversion node 100 of upper steel-pipe column and lower floor's reinforced concrete column of first aspect embodiment, the conversion node is the tie point of upper steel-pipe column 1 and lower floor's reinforced concrete column 2, and upper steel-pipe column 1 can coaxial setting with lower floor's reinforced concrete column 2, and upper steel-pipe column 1 inserts in the conversion node region, the conversion node region is connected with reinforced concrete beam 3 along the horizontal direction. For example, in the axial direction of the upper-layer steel pipe column 1, the top of the reinforced concrete beam 3 may be higher than the topmost end of the conversion node region, and the bottom of the reinforced concrete beam 3 may be lower than the bottommost end of the conversion node region.
Conversion node region, the inboard welding of upper steel-pipe column 1 has ring plate 4, and ring plate 4 can be circular platelike, and ring plate 4 can encircle the axis direction setting of upper steel-pipe column 1, is equipped with grout hole 5 on the ring plate 4, and optionally, ring plate 4 can be steel, and grout hole 5 can be for establishing the circular port at ring plate 4 middle part, through grout hole 5 be convenient for to conversion node region pours into concrete, is favorable to improving conversion node region intra-area's atress performance. Of course, in some optional examples of the present invention, grouting hole 5 may be a polygonal hole or a special-shaped hole or the like provided on ring plate 4, the present invention does not specifically limit the shape of grouting hole 5, and the shape of grouting hole 5 may be adaptively set according to actual needs.
At least one of the inner side and the outer side of the upper-layer steel pipe column 1 is welded with a steel pipe stud 6. From this, be favorable to passing power in the radial direction of upper steel-pipe column 1 through crown plate 4, be convenient for pour into concrete in upper steel-pipe column 1 through grout hole 5, can pass through the atress of steel pipe stud 6 transmission upper steel-pipe column 1, the structure is reliable and construction convenience.
For example, in some alternative examples, the steel pipe studs 6 may be welded to the inner side of the upper steel pipe column 1; in some optional examples, the steel pipe studs 6 are welded on the outer side of the upper-layer steel pipe column 1; in some optional examples, it is also possible to weld steel pipe studs 6 on both the inside and outside of the upper layer steel pipe column 1.
The stud belongs to a high-strength rigid connection fastener, is used in various steel structure projects, and plays a rigid combined connection role in different connecting pieces.
According to the utility model discloses conversion node 100 of upper steel-pipe column and lower floor's reinforced concrete column is favorable to passing power on the radial direction of upper steel-pipe column 1 through crown plate 4, is convenient for pour into concrete in upper steel-pipe column 1 through grout hole 5, can pass the atress of upper steel-pipe column 1 through steel pipe stud 6, and the structure is reliable and construction convenience.
Referring to fig. 1 and 2 (or fig. 4 and 5), according to some embodiments of the present invention, the cross section of the reinforced concrete beam 3 may be rectangular (e.g., square), and the depth of the upper steel pipe column 1 inserted into the transition node region does not exceed the height of the reinforced concrete beam 3. Therefore, the stress performance of the conversion node area can be guaranteed, and meanwhile, the use of materials is saved.
Further, referring to fig. 3 and 6, reinforced concrete column 2 includes that a plurality of posts indulge muscle 10, and a plurality of posts indulge muscle 10 and can follow the axis direction interval arrangement around reinforced concrete column 2, and the post is indulged muscle 10 and is arranged in the pin fin within range of steel pipe peg 6, can guarantee like this that the atress of upper steel-pipe column 1 effectively transmits to the post and indulges muscle 10 to be favorable to improving the regional atress performance of conversion node.
The top of the column longitudinal bar 10 may be located inside the reinforced concrete beam 3. For example, in the axis direction that is on a parallel with upper strata steel-pipe column 1, the top of post longitudinal reinforcement 10 can not surpass the lateral wall setting of reinforced concrete roof beam 3, rational in infrastructure and safe and reliable.
In some optional examples, the top of the column longitudinal rib 10 is lower than the lower surface of the ring plate 4, for example, the top of the column longitudinal rib 10 may be slightly lower than the lower surface of the ring plate 4, so that the force between the column longitudinal rib 10 and the upper steel pipe column 1 is conveniently transmitted through the ring plate 4, the indirect connection between the upper steel pipe column 1 and the column longitudinal rib 10 is easily realized through the steel pipe stud 6, and the improvement of the stress performance of the conversion node area is facilitated.
Further, referring to fig. 1, when the diameter of the upper steel pipe column 1 is smaller than that of the lower reinforced concrete column 2, the column longitudinal rib 10 is disposed outside the upper steel pipe column 1, and at this time, the top of the column longitudinal rib 10 can be stopped against the inner side wall of the reinforced concrete beam 3. Referring to fig. 4, when the diameter of the upper steel pipe column 1 is greater than that of the lower steel pipe column 2, the column longitudinal rib 10 is disposed on the inner side of the upper steel pipe column 1, and at this time, the top of the column longitudinal rib 10 can stop against the lower surface of the annular plate 4. Therefore, better force transmission is facilitated, and different construction requirements can be met.
Alternatively, as shown in fig. 1 and 4, in the conversion node area, a plurality of preformed holes 7 may be formed in the upper-layer steel pipe column 1, and the preformed holes 7 may penetrate through the side wall of the upper-layer steel pipe column 1 in the thickness direction. Further, reinforced concrete roof beam 3 includes that muscle 8 is indulged on upper portion and muscle 9 is indulged to the lower part, and muscle 8 is indulged on upper portion and muscle 9 is indulged to the lower part to the upper portion is indulged muscle 8 and the lower part and is indulged muscle 9 and can be spaced apart from the setting in the upper and lower direction, and the muscle 8 is indulged on upper portion and is suitable for to pass preformed hole 7, and the lower part is indulged muscle 9 and is passed along the horizontal direction lower floor reinforced concrete column 2 and. For example, the length of the upper longitudinal rib 8 and the lower longitudinal rib 9 in the horizontal direction may be equal to the length of the reinforced concrete beam 3 in the horizontal direction, a space is provided between the adjacent column longitudinal ribs 10, and the lower longitudinal rib 9 is adapted to pass through the space between the column longitudinal ribs 10 of the lower reinforced concrete column 2.
In some optional examples, referring to fig. 1, when the diameter of the upper steel pipe column 1 is smaller than that of the lower reinforced concrete column 2, the column longitudinal rib 10 is arranged outside the upper steel pipe column 1, and at this time, the top of the column longitudinal rib 10 may be stopped against the upper longitudinal rib 8.
Referring to fig. 1 and 4, in some embodiments of the present invention, the upper longitudinal ribs 8 may be disposed on the upper surface of the ring plate 4 in the axial direction of the upper-layer steel pipe column 1. For example, the upper longitudinal rib 8 is adapted to be disposed on the upper surface of the ring plate 4 through the prepared hole 7, and the upper longitudinal rib 8 is supported on the upper surface of the ring plate 4. Therefore, the tensile force of the upper longitudinal rib 8 in the radial direction of the upper-layer steel pipe column 1 can be conveniently transmitted through the annular plate 4, and the stress performance of the conversion node area can be improved to a certain extent.
The present invention is not limited to this, and in some optional examples, in the axial direction of the upper steel pipe column 1, the upper longitudinal rib 8 may be higher than the upper surface of the ring plate 4. For example, the upper longitudinal rib 8 may be disposed apart from the annular plate 4 in the axial direction of the upper-layer steel-pipe column 1, and the upper longitudinal rib 8 may be disposed slightly lower than the annular plate 4.
According to the utility model discloses a some embodiments, grout hole 5 can be round hole or multilateral hole, grout hole 5 and 1 coaxial line of upper steel-pipe column. For example, the axis of the grout hole 5 and the axis of the upper layer steel pipe column 1 may be coaxial; when the grout hole 5 is a polygon, the axis of the grout hole 5 may be the axis of the maximum circumscribed circle or the minimum inscribed circle of the polygon, as will be understood by those skilled in the art.
And concrete 11 with a preset height is poured into the upper steel pipe column 1 at the upper part of the conversion node area, and the preset height does not exceed the diameter of the upper steel pipe column 1. For example, the height of the upper steel pipe column 1 poured with the concrete 11 may be smaller than or equal to the diameter of the upper steel pipe column 1. Therefore, the material is saved, the upper-layer steel pipe column 1 has a constraint effect on the concrete in the conversion node area, and the stress performance of the upper-layer steel pipe column can be obviously improved.
According to the utility model discloses the construction method of conversion node of upper steel-pipe column and lower floor reinforced concrete column of second aspect embodiment, construction method includes following step: s10: transporting the steel member prefabricated in a factory to a construction site and installing the steel member in place; s20: positioning column longitudinal bars of a lower layer reinforced concrete column, and binding first reinforcing steel bars of the lower layer reinforced concrete column, wherein the first reinforcing steel bars surround the column longitudinal bars and comprise a plurality of reinforcing steel bars which are arranged at intervals along the longitudinal direction; s30: penetrating the upper longitudinal bar of the reinforced concrete beam through the preformed hole and placing in place, penetrating the lower longitudinal bar of the reinforced concrete beam along the whole beam, and binding a second steel bar of the reinforced concrete beam; s40: and (5) supporting a formwork, and pouring concrete to finish construction.
According to the utility model discloses the construction method of conversion node of upper steel-pipe column and lower floor reinforced concrete column, simple structure, the atress is reasonable, and all steel members all can be prefabricated in the mill, and on-the-spot assembly can effectively improve conversion node's bearing capacity and anti-seismic performance.
The utility model discloses conversion node 100 of upper steel-pipe column 1 and lower floor's reinforced concrete column 2. The upper portion of conversion node is the steel-pipe column, and the bottom is reinforced concrete column, conversion node horizontal direction is connected with reinforced concrete roof beam 3. The upper layer steel pipe column 1 is inserted into the conversion node area concrete, and the steel pipe studs 6 are arranged on the inner side and the outer side of the upper layer steel pipe column 1, so that the reliability of connection with the concrete can be guaranteed. Set up the pulling force of the upper portion longitudinal reinforcement 8 of crown plate 4 in order to transmit reinforced concrete roof beam 3 in the inboard of upper steel-pipe column 1, the grout hole 5 is opened so that the pouring of concrete to crown plate 4. Set up preformed hole 7 in the lateral wall relevant position of upper steel-pipe column 1, the upper portion of reinforced concrete roof beam 3 is indulged muscle 8 and is passed preformed hole 7 and link up along the whole roof beam, and reinforced concrete roof beam 3's lower part is indulged muscle 9 and is also link up along the whole roof beam. The top of the column longitudinal rib 10 is slightly lower than the lower surface of the annular plate 4, the column longitudinal rib 10 is arranged in the range of the nail head of the steel pipe stud 6, and the stress of the upper-layer steel pipe column 1 is guaranteed to be effectively transmitted to the column longitudinal rib 10. The inner side of the part of the upper steel pipe column 1 above the conversion node area can be poured with concrete 14, so that the connection between the upper steel pipe column 1 and the concrete is more reliable. The upper-layer steel pipe column 1, the ring plate 4 and the steel pipe stud 6 are prefabricated in a factory, and the preformed hole 7 is also formed in the factory. During construction, the upper-layer steel pipe column 1 is hoisted in place, column reinforcing steel bars 10 are bound, then the upper longitudinal bars 8 penetrate through the preformed holes 7, reinforcing steel bars (second reinforcing steel bars) of the reinforced concrete beam are positioned and bound, a formwork is erected, and concrete is poured, so that node construction is completed. According to the utility model discloses conversion node 100 of upper steel-pipe column and lower floor reinforced concrete column, the atress performance is good, simple structure, and construction convenience has apparent technological economic benefits.
Other configurations and operations of the conversion node 100 of the upper steel pipe column and the lower reinforced concrete column and the construction method according to the embodiment of the present invention are known to those skilled in the art, for example, the structure or method of the conversion node 100 of the upper steel pipe column and the lower reinforced concrete column and the construction method, which are not mentioned in the present application, may be performed by referring to a conventional manner, and will not be described in detail herein.
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 the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and 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 therefore, should not be construed as limiting the present invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A conversion node (100) of an upper layer steel pipe column and a lower layer reinforced concrete column is a connection point of the upper layer steel pipe column (1) and the lower layer reinforced concrete column (2),
the upper-layer steel pipe column (1) is inserted into a conversion node area, and a reinforced concrete beam (3) is connected to the conversion node area along the horizontal direction;
in the conversion node area, a ring plate (4) is welded on the inner side of the upper-layer steel pipe column (1), grouting holes (5) are formed in the ring plate (4), and steel pipe studs (6) are welded on at least one of the inner side and the outer side of the upper-layer steel pipe column (1).
2. The transition joint (100) of an upper steel pipe column and a lower steel pipe column according to claim 1, wherein the cross section of the reinforced concrete beam (3) is rectangular, and the depth of the upper steel pipe column (1) inserted into the transition joint area does not exceed the height of the reinforced concrete beam (3).
3. The transfer node (100) of an upper steel pipe column and a lower reinforced concrete column according to claim 2, wherein the reinforced concrete column (2) comprises a plurality of column longitudinal ribs (10), the plurality of column longitudinal ribs (10) are arranged at intervals along an axial direction around the reinforced concrete column (2),
the column longitudinal bar (10) is arranged in the range of the head of the steel pipe stud (6), and the top of the column longitudinal bar (10) is located inside the reinforced concrete beam (3).
4. A transformation joint (100) for an upper steel pipe column and a lower steel concrete column according to claim 3,
when the diameter of the upper-layer steel pipe column (1) is smaller than that of the lower-layer reinforced concrete column (2), the column longitudinal ribs (10) are arranged on the outer side of the upper-layer steel pipe column (1);
when the diameter of the upper-layer steel pipe column (1) is larger than that of the lower-layer reinforced concrete column (2), the column longitudinal rib (10) is arranged on the inner side of the upper-layer steel pipe column (1).
5. The transition joint (100) of an upper steel pipe column and a lower steel reinforced concrete column according to claim 3, characterized in that in the transition joint area, a preformed hole (7) is arranged on the upper steel pipe column (1), and the preformed hole (7) penetrates through the side wall of the upper steel pipe column (1) in the thickness direction.
6. The transition joint (100) of an upper steel pipe column and a lower reinforced concrete column according to claim 5, wherein the reinforced concrete beam (3) comprises an upper longitudinal bar (8) and a lower longitudinal bar (9), the upper longitudinal bar (8) and the lower longitudinal bar (9) are arranged in parallel and spaced apart, the upper longitudinal bar (8) is adapted to pass through the prepared hole (7), and the lower longitudinal bar (9) passes through the lower reinforced concrete column (2) in a horizontal direction and is arranged to pass through the reinforced concrete beam (3).
7. The transition joint (100) of an upper steel pipe column and a lower steel concrete column according to claim 6, wherein the upper longitudinal ribs (8) are arranged on the upper surface of the ring plate (4) in the axial direction of the upper steel pipe column (1).
8. The transition joint (100) of an upper steel pipe column and a lower reinforced concrete column according to claim 6, characterized in that the top of the column longitudinal bar (10) is lower than the lower surface of the ring plate (4).
9. The transition joint (100) of an upper steel pipe column and a lower reinforced concrete column according to any one of claims 1 to 8, wherein the grouting holes (5) are circular holes or polygonal holes, and the grouting holes (5) are coaxial with the upper steel pipe column (1);
and concrete (11) with a preset height is poured into the upper layer of steel pipe column (1) at the upper part of the conversion node area, and the preset height does not exceed the diameter of the upper layer of steel pipe column (1).
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| CN201920260126.0U CN209989955U (en) | 2019-02-28 | 2019-02-28 | Conversion node of upper steel pipe column and lower floor reinforced concrete column |
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| CN201920260126.0U CN209989955U (en) | 2019-02-28 | 2019-02-28 | Conversion node of upper steel pipe column and lower floor reinforced concrete column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680809A (en) * | 2019-02-28 | 2019-04-26 | 清华大学 | The switching node and construction method of upper layer steel pipe column and lower layer's reinforced column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109680809A (en) * | 2019-02-28 | 2019-04-26 | 清华大学 | The switching node and construction method of upper layer steel pipe column and lower layer's reinforced column |
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