CN115680115A - Conversion node of concrete combined column and construction method - Google Patents
Conversion node of concrete combined column and construction method Download PDFInfo
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- CN115680115A CN115680115A CN202211401248.XA CN202211401248A CN115680115A CN 115680115 A CN115680115 A CN 115680115A CN 202211401248 A CN202211401248 A CN 202211401248A CN 115680115 A CN115680115 A CN 115680115A
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- 239000004567 concrete Substances 0.000 title claims abstract description 66
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 38
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 145
- 239000010959 steel Substances 0.000 claims abstract description 145
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 46
- 239000002131 composite material Substances 0.000 claims abstract description 38
- 238000003466 welding Methods 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 5
- 238000009415 formwork Methods 0.000 claims description 2
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- 239000000463 material Substances 0.000 description 2
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- 239000004566 building material Substances 0.000 description 1
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Abstract
The invention discloses a conversion node of a concrete composite column and a construction method, wherein the conversion node is a connection node of an upper layer steel pipe concrete column part, a lower layer frame-provided steel reinforced concrete composite column with a certain gradient and a steel reinforced concrete beam part, and an upper layer steel pipe in the upper layer steel pipe concrete part penetrates through a core area of the conversion node and partially extends into an upper area in the lower layer frame-provided steel reinforced concrete composite column with a certain gradient. The invention can be applied to the joint of the upper structure and the lower structure, namely the invention is suitable for the embedding end of a building structure, provides higher rigidity and strength in engineering, meets the embedding requirement, has simple structure, is easy to construct, can effectively shorten the construction time and improve the construction efficiency.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a conversion node of a concrete combined column and a construction method.
Background
In large public buildings, it is often the case that steel structures are used together with concrete structures. This involves the problem of construction at the junction of different forms of construction, i.e. the construction of the switching node. Particularly, in a vertical mixed structure, a great gap still exists in related research of a construction method of a joint of a steel pipe concrete structure at the upper layer and a reinforced concrete structure at the lower layer.
The existing method usually increases the section size of a lower layer reinforced concrete column, and an upper layer steel pipe or a steel pipe concrete column is completely inserted into the lower layer column under the condition of not changing the section size, and then is wrapped in the reinforced concrete column. Although the method is safe, the method is conservative, and the defect that the cross section of the lower column is overlarge and the building space is wasted exists. In addition, the existing construction mode has the disadvantages of large consumption of building materials, high construction difficulty, long construction period and poor economic benefit in engineering. Therefore, on the premise of ensuring normal use, the construction form of the conversion node which can effectively reduce the section size of the lower column, has low construction difficulty and can fully exert material performance is provided, and the construction form has important engineering application significance.
Disclosure of Invention
The invention aims to design a conversion node of a concrete combined column and a construction method, so as to solve the problems in the background art. The mechanical property of the conversion node can meet the actual requirements of engineering, the construction difficulty is greatly reduced, the construction efficiency is improved, and a higher economic value can be created.
In order to achieve the purpose, the invention provides the following technical scheme: a conversion node of a concrete composite column is a connection node of an upper layer steel pipe concrete column part, a lower layer frame-contained steel concrete composite column with a certain gradient and a reinforced concrete beam part, wherein an upper layer steel pipe in the upper layer steel pipe concrete part penetrates through a core area of the conversion node and partially extends into an upper area in the lower layer frame-contained steel concrete composite column with the certain gradient;
a bracket is arranged in the node core area and welded at a corresponding position on the outer side of the upper layer of concrete-filled steel tube;
the bracket comprises a first row of flange plates at the upper part of the bracket, a second row of flange plates at the upper part of the bracket, a first row of flange plates at the bottom of the bracket, a second row of flange plates at the bottom of the bracket and a bracket web plate, wherein the first row of flange plates at the upper part of the bracket, the second row of flange plates at the upper part of the bracket, the first row of flange plates at the bottom of the bracket and the second row of flange plates at the bottom of the bracket are respectively welded to the upper edge and the lower edge of the bracket web plate;
the stiffening plate with the vent holes is welded at the upper part of the node core area and the stiffening plate with the vent holes is welded at the lower part of the node core area inside the upper layer steel pipe in the range of the conversion node core area, and the welding positions of the stiffening plates and the upper and lower flange surfaces of the bracket are positioned in the same plane;
the variable cross-section profile steel with the frame in the frame-provided steel reinforced concrete composite column with the certain gradient at the lower layer is profile steel with a certain gradient, and the top surface of the variable cross-section profile steel is welded with the bottom surface of the steel pipe at the upper layer;
the bottom surface of the variable cross-section profile steel with the frame is welded with a uniform cross-section profile steel with a frame, and the shape of the cross section of the bottom of the variable cross-section profile steel with the frame is the same as that of the cross section of the bottom of the variable cross-section profile steel with the frame;
longitudinal steel bars in a center pillar of the lower-layer frame-containing steel reinforced concrete composite column with a certain gradient are welded with the outer side of the bottom of the upper-layer steel pipe;
longitudinal ribs in the middle beam of the reinforced concrete beam part are welded with the upper flange and the lower flange of the bracket together;
and a certain number of column inner stirrups and beam inner stirrups are bound and arranged in the frame-provided steel reinforced concrete composite column and the reinforced concrete beam part with a certain gradient on the lower layer.
In a preferred embodiment of the present invention, the studs are welded to the inside and outside of the upper steel pipe, the framed variable-section steel, and the framed uniform-section steel.
In a preferred embodiment of the present invention, the cross-sectional symmetry axis of the corbel coincides with the symmetry axis of the outer surface of the upper steel pipe.
In a preferred embodiment of the present invention, the cross-sectional shape of the corbel is symmetrical.
In a preferred embodiment of the present invention, the cross-sectional shapes of the framed variable-section steel and the framed uniform-section steel are symmetrical.
In a preferred embodiment of the present invention, the upper steel pipe, the lower frame-equipped steel reinforced concrete composite column with a certain gradient, and the reinforced concrete beam are all rectangular in cross section.
As a preferred embodiment of the present invention, the reinforcing plate with the hole at the upper part of the node core area and the reinforcing plate with the hole at the lower part of the node core area are provided with triangular vent holes at four corners, and the middle part is provided with grouting holes, and the grouting holes are coaxial.
A construction method of a conversion joint of a concrete combined column specifically comprises the following steps:
step 1: firstly, welding a first row of flange plates at the upper part of a bracket, a second row of flange plates at the upper part of the bracket, a first row of flange plates at the bottom of the bracket, a second row of flange plates at the bottom of the bracket and a bracket web plate which are vertical to each other, wherein the four flange plates are symmetrically and centrally welded during welding so as to obtain the bracket;
step 2: when the upper steel pipe is processed, welding the stiffening plate with the hole at the upper part of the node core area and the stiffening plate with the hole at the lower part of the node core area in place, and welding the stud;
and 3, step 3: welding the top of the variable cross-section profile steel with the frame with the bottom surface of the upper steel pipe; welding the top of the profiled bar with the frame and the bottom of the profiled bar with the frame and the variable cross section, wherein the studs can be welded on the profiled bar after the step is finished, and the number of the studs is determined according to actual engineering;
and 4, step 4: welding a bracket to the outer surface of an upper steel pipe at a node core area, welding a top longitudinal bar and a bottom longitudinal bar of a middle beam of a reinforced concrete beam part C to flange plates of the bracket, and binding an inner hoop bar of the beam after welding;
and 5: the bottom outside of upper steel pipe is welded to with the lower floor has in the frame shaped steel concrete composite column B center pillar of certain slope longitudinal reinforcement, and its welding length stretches into the top of node nuclear core area, and the welding finishes the interior stirrup of back ligature post.
And 6: and (5) erecting a formwork and pouring concrete of the conversion node.
Compared with the prior art, the invention provides a conversion node of a concrete combined column, which has the following beneficial effects:
the conversion node of the concrete combined column can be applied to an embedding end in actual engineering, can obviously reduce the section size of a lower-layer column compared with the prior art, does not occupy excessive building space, and is particularly suitable for actual engineering with strict requirements on the building space. In addition, the conversion node can provide enough rigidity and strength in engineering, has a simple structure, is easy to construct, can effectively shorten the construction time, improves the construction efficiency, and creates greater social and economic benefits.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural view of a preferred embodiment of a transition node of an upper layer of steel-pipe concrete and a lower layer of a framed steel-pipe concrete composite column with a certain gradient according to the present invention.
Fig. 2 is a front view of an upper steel pipe, a framed section steel, and a framed uniform-section steel of a framed section steel reinforced concrete composite column having an upper layer of concrete filled steel pipes and a lower layer having a certain gradient, shown in fig. 1.
Fig. 3 is a front view of a corbel of a transition joint of an upper layer of steel-filled concrete and a lower layer of a sloped framed steel-filled concrete composite column shown in fig. 1.
Fig. 4 is a side view of a corbel of a transition joint of an upper concrete filled steel tube and a lower framed concrete filled steel composite column having a slope as shown in fig. 1.
Fig. 5 is a sectional view of an upper layer of steel pipe concrete and a lower layer of a framed steel reinforced concrete composite column having a certain slope, as shown in fig. 1.
Fig. 6 is a sectional view of a node core region of a transition node of an upper layer of steel reinforced concrete and a lower layer of a gradient framed steel reinforced concrete composite column shown in fig. 1.
Fig. 7 is a cross-sectional view of a lower-layer framed section steel of a transition joint of an upper-layer concrete-filled steel tube and a lower-layer framed concrete-filled steel composite column having a certain slope, shown in fig. 1.
Fig. 8 is a cross-sectional view of a lower-layer framed uniform-section steel of a transition joint of an upper-layer concrete-filled steel tube and a lower-layer framed steel-reinforced concrete composite column having a certain slope, shown in fig. 1.
Fig. 9 is a schematic view of an open-hole stiffening plate of a transition joint of an upper layer of concrete-filled steel tube and a lower layer of a framed reinforced concrete composite column with a certain gradient shown in fig. 1.
Wherein the meanings of the reference symbols are as follows:
a: an upper concrete filled steel tubular column part; b, the lower layer is provided with a frame-containing steel reinforced concrete combined column part with a certain gradient; c: a reinforced concrete beam portion.
1: an upper steel pipe; 2: concrete; 3: a bracket; 4: a first row of flange plates at the upper part of the bracket; 5: a second row of flange plates at the upper part of the bracket; 6: a first row of flange plates at the bottom of the bracket; 7: a second row of flange plates at the bottom of the bracket; 8: a corbel web; 9: a stiffening plate is arranged at the upper part of the node core area; 10: a stiffening plate is arranged at the lower part of the node core area; 11: a stud; 12: the variable cross-section profile steel with the frame; 13: the section steel with the frame and the uniform section; 14: longitudinal steel bars in the column; 15: longitudinal ribs in the beam; 16: hooping in the column; 17: and (5) hooping in the beam.
Detailed Description
For better understanding of the objects, structure and function of the present invention, the concrete composite column conversion node of the present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 to 9, the present embodiment provides a concrete composite column conversion node, which is a connection node between an upper concrete filled steel tubular column part a and a lower frame-type steel reinforced concrete composite column B and a reinforced concrete beam part C having a certain slope,
the upper steel tube 1 in the upper layer steel tube concrete part A passes through the core area of the conversion node and partially extends into the upper area of the lower layer frame-containing steel reinforced concrete combined column B with a certain gradient;
the corbels 3 are arranged in the core areas of the nodes and welded at corresponding positions on the outer side of the upper layer of concrete-filled steel tubes 1, and after concrete is poured, the corbels 3 can be completely wrapped by the concrete;
the bracket 3 comprises a first row of flange plates 4 at the upper part of the bracket, a second row of flange plates 5 at the upper part of the bracket, a first row of flange plates 6 at the bottom of the bracket, a second row of flange plates 7 at the bottom of the bracket and a bracket web 8, wherein the first row of flange plates 4 at the upper part of the bracket, the second row of flange plates 5 at the upper part of the bracket, the first row of flange plates 6 at the bottom of the bracket and the second row of flange plates 7 at the bottom of the bracket are respectively welded to the upper edge and the lower edge of the bracket web 8;
the inside of upper steel pipe 1 in conversion node core area within range welds node core area upper portion trompil stiffening plate 9 and node core area lower part trompil stiffening plate 10 that has the exhaust hole respectively to its welding position is in the same plane with the upper and lower flange surface of bracket, and in the antidetonation design, the performance requirement to node core area is "can strong festival, the weak component of point", guarantees that node core area is in normal operating condition all the time promptly. The bracket welds the side in node core area, and during the node atress, the bracket can transmit the load in the roof beam to node core area, and this is one of the reasons that leads to the regional atress of node core complicated. In order to ensure that the node core area has sufficient rigidity and strength reserve, a stiffening plate in the steel pipe needs to be arranged so as to resist deformation and prevent local buckling, the stability is increased, and the rigidity and the strength of the node core area are further improved. In addition, in the transportation process, the stiffening plate inside the steel pipe can avoid the deformation of the pipe orifice, and is favorable for positioning and welding the bracket.
The variable cross-section steel 12 with the frame in the lower layer frame-containing steel reinforced concrete composite column B with a certain gradient is steel with a certain gradient, and the top surface of the variable cross-section steel 12 is welded with the bottom surface of the upper layer steel pipe 1;
the bottom surface of the framed variable cross-section steel 12 is welded with a framed uniform cross-section steel 13 with the same shape as the bottom cross-section of the framed variable cross-section steel 12;
the longitudinal steel bar 14 in the center column B of the lower-layer frame-containing steel reinforced concrete composite column with a certain gradient is welded with the outer side of the bottom of the upper-layer steel pipe 1, and the cross sections of the bottom of the two are consistent in size;
the longitudinal ribs 15 in the middle beam of the reinforced concrete beam part C are welded with the upper flange and the lower flange of the bracket 3 together so as to transfer load;
and a certain number of column inner stirrups 16 and beam inner stirrups 17 are bound in the frame-carrying steel reinforced concrete composite column B and the reinforced concrete beam part C with a certain gradient on the lower layer.
In the above example, preferably, the studs 11 are welded on the inner side and the outer side of the upper steel pipe 1, the framed variable-section steel 12 and the framed uniform-section steel 13, so as to ensure better cooperation between concrete and steel.
In the above example, it is preferable that the cross-sectional symmetry axis of the corbel 3 coincides with the symmetry axis of the outer surface of the upper steel pipe 1.
In the above example, the cross-sectional shape of the corbel 3 is preferably symmetrical.
In the above example, the cross-sectional shapes of the framed variable-section steel 12 and the framed uniform-section steel 13 are preferably symmetrical.
In the above example, it is preferable that the upper concrete filled steel tube column part (a) (i.e., the upper steel tube 1), the lower frame-type steel reinforced concrete composite column B having a slope, and the reinforced concrete beam part C are rectangular in cross section.
In the above example, preferably, the four corners of the stiffening plate 9 with an opening at the upper part of the node core area and the stiffening plate 10 with an opening at the lower part of the node core area are provided with triangular exhaust holes, the middle part of the stiffening plate is provided with two circular grouting holes, and the two grouting holes are coaxial.
In the above example, preferably, the top of the framed variable cross-section steel profiles 12 is in the same plane as the bottom surface of the reinforced concrete beam, i.e. the bottom plane of the upper steel pipe 1 is flush with the bottom surface of the reinforced concrete beam.
A construction method of a conversion node of a concrete combined column is applied to the conversion node of the concrete combined column and specifically comprises the following steps:
step 1: firstly, welding a first row of flange plates 4 at the upper part of the bracket, a second row of flange plates 5 at the upper part of the bracket, a first row of flange plates 6 at the bottom of the bracket, a second row of flange plates 7 at the bottom of the bracket and a bracket web 8 which are perpendicular to each other, wherein the four flange plates are symmetrically and centrally welded during welding so as to obtain the bracket 3, as shown in fig. 3 and 4;
step 2: when the upper steel pipe 1 is processed, welding the stiffening plate 9 with the hole at the upper part of the node core area and the stiffening plate 10 with the hole at the lower part of the node core area in place, and welding the stud 12, as shown in fig. 5;
and 3, step 3: welding the top of the framed variable section steel 12 to the bottom of the upper steel pipe 1, as shown in fig. 2; welding the top of the profiled bar 13 with the frame and the bottom of the profiled bar 12 with the frame, wherein the studs 12 can be welded on the profiled bar after the step is finished, and the number of the studs is determined according to the actual engineering;
and 4, step 4: welding a bracket 3 to the outer surface of an upper steel pipe 1 at a node core area, welding a top longitudinal bar and a bottom longitudinal bar of a middle beam of a reinforced concrete beam part C to flange plates of the bracket, and binding a beam inner stirrup after welding is finished, as shown in FIG. 6;
and 5: and (3) welding longitudinal steel bars 14 in a center column B of the frame-equipped steel-concrete composite column with a certain gradient at the lower layer to the outer side of the bottom of the upper layer steel pipe 1, wherein the welding length of the longitudinal steel bars extends into the top of a node core area, and binding stirrups in the column after welding is finished, wherein at the moment, the sectional views of the frame-equipped variable section steel 12 and the frame-equipped uniform section steel 13 are respectively shown in the figures 7 and 8.
Step 6: the concrete 2 of the conversion node is erected and poured, as shown in fig. 1.
Example two:
a conversion node and a construction method of a concrete combined column are different from the first embodiment in that: in this embodiment, the upper concrete filled steel tubular column part (a) is a steel tube, and the interior is not filled with concrete.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. The utility model provides a conversion node of concrete combination column, the conversion node is the connected node of taking frame shaped steel concrete combination column (B) and reinforced concrete beam part (C) that upper concrete filled steel tube column part (A) and lower floor have a grade, its characterized in that:
the upper steel pipe (1) in the upper layer steel pipe concrete part (A) penetrates through the core area of the conversion node, and partially extends into the upper area in the lower layer frame-containing steel reinforced concrete combined column (B) with a certain gradient;
a bracket (3) is arranged in the node core area and welded at the corresponding position of the outer side of the upper layer of concrete-filled steel tube (1);
the bracket (3) comprises a first row of flange plates (4) at the upper part of the bracket, a second row of flange plates (5) at the upper part of the bracket, a first row of flange plates (6) at the bottom of the bracket, a second row of flange plates (7) at the bottom of the bracket and a bracket web (8), wherein the first row of flange plates (4) at the upper part of the bracket, the second row of flange plates (5) at the upper part of the bracket, the first row of flange plates (6) at the bottom of the bracket and the second row of flange plates (7) at the bottom of the bracket are respectively welded to the upper edge and the lower edge of the bracket web (8);
a stiffening plate (9) with an opening at the upper part of the node core area and a stiffening plate (10) with an opening at the lower part of the node core area, which are provided with exhaust holes, are respectively welded inside the upper layer steel pipe (1) in the range of the conversion node core area, and the welding positions of the stiffening plates and the upper and lower flange surfaces of the bracket are positioned in the same plane;
the variable cross-section steel (12) with the frame in the lower frame steel reinforced concrete combined column (B) with a certain gradient is steel with a certain gradient, and the top surface of the variable cross-section steel is welded with the bottom surface of the upper layer steel pipe (1);
the bottom surface of the variable cross-section steel (12) with the frame is welded with a uniform cross-section steel (13) with the frame, which has the same shape as the bottom cross-section of the variable cross-section steel (12) with the frame;
the longitudinal steel bar (14) in the center column of the lower-layer frame-containing steel reinforced concrete composite column (B) with a certain gradient is welded with the outer side of the bottom of the upper-layer steel pipe (1);
the longitudinal ribs (15) in the middle beam of the reinforced concrete beam part (C) are welded with the upper flange and the lower flange of the bracket (3);
and the lower layer has certain gradient and is provided with a certain number of column inner stirrups (16) and beam inner stirrups (17) in the binding manner in the frame-containing steel reinforced concrete combination column (B) and the reinforced concrete beam part (C).
2. A conversion node of a concrete composite post according to claim 1, characterized in that: a plurality of studs (11) are welded on the inner side and the outer side of the upper layer steel pipe (1), the variable section steel (12) with the frame and the uniform section steel (13) with the frame.
3. A conversion node of a concrete composite post according to any one of claim 1, characterized in that: the cross section symmetry axis of bracket (3) and the outside surface symmetry axis coincidence of upper steel pipe (1).
4. A conversion node of a concrete composite post according to claim 1, characterized in that: the cross section of the bracket (3) is symmetrical.
5. A concrete composite post conversion node as claimed in claim 1, wherein: the cross sections of the variable section steel (12) with the frame and the uniform section steel (13) with the frame are symmetrical.
6. A conversion node of a concrete composite post according to claim 1, characterized in that: the upper layer steel pipe (1) and the lower layer have certain gradient and are provided with frame-type steel reinforced concrete combination columns (B) and reinforced concrete beam parts (C) which are all rectangular sections.
7. A concrete composite post conversion node as claimed in claim 1, wherein: the four corners of the upper opening stiffening plate (9) of the node core area and the four corners of the lower opening stiffening plate (10) of the node core area are provided with triangular exhaust holes, and the middle of the node core area is provided with grouting holes which are coaxial.
8. A construction method of a conversion node of a concrete composite column, applied to the conversion node of the concrete composite column according to any one of claims 1 to 7, characterized in that: the method specifically comprises the following steps:
step 1: firstly, welding a first row of flange plates (4) at the upper part of a bracket, a second row of flange plates (5) at the upper part of the bracket, a first row of flange plates (6) at the bottom of the bracket, a second row of flange plates (7) at the bottom of the bracket and a bracket web (8) which are perpendicular to each other, wherein the four flange plates are symmetrically and centrally welded during welding so as to obtain the bracket (3);
and 2, step: when the upper steel pipe (1) is processed, welding the stiffening plate (9) with the hole at the upper part of the node core area and the stiffening plate (10) with the hole at the lower part of the node core area in place, and welding the stud (12);
and 3, step 3: welding the top of the variable cross-section profile steel (12) with the frame with the bottom surface of the upper steel pipe (1) together; welding the top of the profiled bar (13) with the frame and the bottom of the profiled bar (12) with the frame, wherein, after the step is finished, the studs (12) can be welded on the profiled bar, and the number of the studs is determined according to the actual engineering;
and 4, step 4: welding a bracket (3) to the outer surface of an upper steel pipe (1) at a node core area, welding a top longitudinal bar and a bottom longitudinal bar of a middle beam of a reinforced concrete beam part (C) to flange plates of the bracket, and binding beam inner stirrups after welding;
and 5: the bottom outside of upper steel pipe (1) is welded to longitudinal reinforcement (14) in the center pillar of the frame-carrying steel-concrete composite column (B) that will have certain slope in the lower floor, and its welding length stretches into the top of node nuclear region, and the stirrup in the ligature post after the welding finishes.
Step 6: and (3) erecting a formwork and pouring concrete (2) of the conversion node.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211401248.XA CN115680115B (en) | 2022-11-09 | 2022-11-09 | Conversion node of concrete composite column and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211401248.XA CN115680115B (en) | 2022-11-09 | 2022-11-09 | Conversion node of concrete composite column and construction method |
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| CN115680115A true CN115680115A (en) | 2023-02-03 |
| CN115680115B CN115680115B (en) | 2024-07-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205444493U (en) * | 2016-03-30 | 2016-08-10 | 湖南金海钢结构股份有限公司 | Connected node device of concrete beam and steel core concrete column |
| CN106436924A (en) * | 2016-08-22 | 2017-02-22 | 广西建工集团第五建筑工程有限责任公司 | Steel pipe concrete column variable section broken-line-shaped steel bracket and connecting construction method thereof |
| CN109680810A (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 |
| CN109914695A (en) * | 2019-03-14 | 2019-06-21 | 河海大学 | Based on variable cross-section assembled steel reinforced concrete antidetonation coupled column |
| WO2022161084A1 (en) * | 2021-01-27 | 2022-08-04 | 海南大学 | Fabricated concrete beam column joint and construction method therefor |
-
2022
- 2022-11-09 CN CN202211401248.XA patent/CN115680115B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205444493U (en) * | 2016-03-30 | 2016-08-10 | 湖南金海钢结构股份有限公司 | Connected node device of concrete beam and steel core concrete column |
| CN106436924A (en) * | 2016-08-22 | 2017-02-22 | 广西建工集团第五建筑工程有限责任公司 | Steel pipe concrete column variable section broken-line-shaped steel bracket and connecting construction method thereof |
| CN109680810A (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 |
| CN109914695A (en) * | 2019-03-14 | 2019-06-21 | 河海大学 | Based on variable cross-section assembled steel reinforced concrete antidetonation coupled column |
| WO2022161084A1 (en) * | 2021-01-27 | 2022-08-04 | 海南大学 | Fabricated concrete beam column joint and construction method therefor |
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| CN115680115B (en) | 2024-07-02 |
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