CN113863506A - A hybrid connection node of prefabricated concrete column and H-shaped steel beam - Google Patents
A hybrid connection node of prefabricated concrete column and H-shaped steel beam Download PDFInfo
- Publication number
- CN113863506A CN113863506A CN202111147854.9A CN202111147854A CN113863506A CN 113863506 A CN113863506 A CN 113863506A CN 202111147854 A CN202111147854 A CN 202111147854A CN 113863506 A CN113863506 A CN 113863506A
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- China
- Prior art keywords
- connecting piece
- concrete column
- steel beam
- shaped steel
- plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 63
- 239000010959 steel Substances 0.000 title claims abstract description 63
- 239000004567 concrete Substances 0.000 title claims abstract description 34
- 239000011178 precast concrete Substances 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
- E04B1/34315—Structures characterised by movable, separable, or collapsible parts, e.g. for transport characterised by separable parts
- E04B1/34326—Structures characterised by movable, separable, or collapsible parts, e.g. for transport characterised by separable parts mainly constituted by longitudinal elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
- E04B1/5806—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile
- E04B1/5812—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile of substantially I - or H - form
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
本发明涉及建筑技术领域，具体涉及一种装配式混凝土柱与H型钢梁的混合连接节点。本发明的技术方案如下：一种装配式混凝土柱与H型钢梁的混合连接节点，包括预制混凝土柱、H型钢梁、连接件一、连接件二、连接件三和高强螺栓副，所述预制混凝土柱设有三组预埋螺栓杆，连接件一及连接件三固定安装在预埋螺栓杆上，两个连接件二分别设置在连接件一的上下两侧且固定安装在预埋螺栓杆上；H型钢梁通过高强螺栓副与连接件一、连接件二及连接件三连接。本发明提供的装配式混凝土柱与H型钢梁的混合连接节点，解决了混凝土柱与钢梁连接强度差、刚度小、耗能能力差、钢结构节点在地震作用下易发生脆性断裂破坏等技术问题。
The invention relates to the technical field of construction, in particular to a hybrid connection node of an assembled concrete column and an H-shaped steel beam. The technical scheme of the present invention is as follows: a hybrid connection node of a prefabricated concrete column and an H-shaped steel beam, comprising a prefabricated concrete column, an H-shaped steel beam, a connecting piece, a second connecting piece, a third connecting piece and a high-strength bolt pair. The prefabricated concrete column is provided with three groups of embedded bolt rods, the first and third connecting pieces are fixedly installed on the embedded bolt rods, and the two connecting pieces are respectively arranged on the upper and lower sides of the connecting piece 1 and are fixedly installed on the embedded bolts. On the rod; the H-shaped steel beam is connected with the connecting piece 1, the connecting piece 2 and the connecting piece 3 through a pair of high-strength bolts. The hybrid connection node of the prefabricated concrete column and the H-shaped steel beam provided by the invention solves the problem of poor connection strength, low rigidity, poor energy dissipation capacity of the concrete column and the steel beam, and brittle fracture damage of the steel structure node under the action of earthquakes. technical problem.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a hybrid connection node of an assembled concrete column and an H-shaped steel beam.
Background
The fabricated building refers to a building in which each part of the building is prefabricated in advance in a factory and then transported to a construction site for assembly, and concrete pouring, welding, and the like are omitted. Fabricated buildings are more standard than fabricated on site. The mixed structure system can exert the respective advantages of concrete and steel, so that the comprehensive performance of the structure is more excellent than that of the traditional concrete structure or steel structure. Therefore, the strong column and weak beam, the strong node and weak member and the easy repair after the earthquake are easily realized.
In the traditional building, concrete and an H-shaped steel beam are connected by placing an embedded part before pouring the concrete, welding a bracket on the embedded part before mounting the steel beam, and directly connecting the bracket with the steel beam when mounting the steel beam. In actual engineering, if the span of a building is large, the requirements of strength, rigidity and the like of connection of the predesigned concrete and a steel structure are difficult to guarantee due to the limitation of manpower and sites.
Disclosure of Invention
The invention provides a hybrid connection node of an assembled concrete column and an H-shaped steel beam, and solves the technical problems that the connection strength of the concrete column and the steel beam is poor, the rigidity is low, the energy consumption capability is poor, the steel structure node is easy to generate brittle fracture damage under the action of an earthquake and the like.
The technical scheme of the invention is as follows:
a mixed connection node of an assembled concrete column and an H-shaped steel beam comprises a precast concrete column, the H-shaped steel beam, a first connecting piece, a second connecting piece, a third connecting piece and a high-strength bolt pair, wherein the precast concrete column is provided with three groups of embedded bolt rods; the two second connecting pieces are respectively arranged at the upper side and the lower side of the first connecting piece, connecting plates of the two second connecting pieces are respectively sleeved on the other two groups of embedded bolt rods, and nuts are initially screwed on the embedded bolt rods to implement positioning; the upper flange and the lower flange of the H-shaped steel beam are respectively arranged between the upper flange and the lower flange of the first connecting piece and the side plates of the second connecting pieces, the second supporting plate of the third connecting piece is connected with the web plate of the H-shaped steel beam through a high-strength bolt pair, the upper flange of the first connecting piece, the upper flange of the H-shaped steel beam and the side plate of the second connecting piece positioned on the upper part are connected through a high-strength bolt pair, the lower flange of the first connecting piece, the lower flange of the H-shaped steel beam and the side plate of the second connecting piece positioned on the lower part are connected through a high-strength bolt pair, and all nuts are finally screwed.
Furthermore, the mixed connection node of the fabricated concrete column and the H-shaped steel beam is characterized in that the first connecting piece and the second connecting piece are prefabricated steel structural members, and the third connecting piece is a prefabricated angle steel member.
Furthermore, in the hybrid connection node of the fabricated concrete column and the H-shaped steel beam, the first connecting piece is a channel-shaped piece, and the upper wing plate and the lower wing plate of the first connecting piece are respectively positioned at two ends of the web plate.
Furthermore, the mixed connection node of assembled concrete column and H shaped steel roof beam, the connecting plate and the curb plate of connecting piece two are the right angle and are connected, be equipped with the floor between connecting plate and the curb plate.
Furthermore, the center of the rib plate is provided with a round hole.
Furthermore, the bottom of the embedded bolt rod is cross-shaped and is bound with a reinforcement cage of the precast concrete column.
The invention has the beneficial effects that:
1. the force transmission path of the invention is that vertical shearing force is born by the embedded bolt bar of the concrete column, horizontal shearing force is born by the high-strength bolt of the connecting piece II and the beam web plate of the H-shaped steel beam, bending moment is transmitted to the connecting piece II by the connecting piece I at the maximum part of the bending moment, the secondary distribution of load prevents the upper flange and the lower flange of the H-shaped steel beam from yielding too early, and when the connecting piece II is damaged by stress, the secondary use of the node can be achieved by replacing the connecting piece II.
2. The first connecting piece is installed at first in the installation process, the positioning effect of other connecting pieces is achieved, and temporary support is provided for other connecting pieces, so that the installation and the disassembly in actual engineering are simple and rapid.
3. In actual working conditions, the embedded bolt rod bears the shearing force and also bears the tilting force, so that the connecting piece II bears more tilting force than the connecting piece I and the H-shaped steel beam, and the upper flange and the lower flange of the beam are prevented from yielding to form a plastic hinge before the connecting piece II.
4. Through connecting piece one, connecting piece two, connecting piece three, pass through bolted connection with concrete column and H shaped steel roof beam and become whole to realize the rigid connection of node, avoided the brittle fracture destruction of the junction of concrete column and H shaped steel roof beam.
5. The connecting piece II is simultaneously connected with the upper flange and the lower flange of the H-shaped steel beam and the concrete column, so that the bending deformation of the beam-column joint can be effectively reduced, the buckling damage of the connecting piece and the H-shaped steel beam can be effectively reduced, and the seismic resistance and the seismic absorption performance of the node can be improved.
6. And a circular hole is formed in the center of the rib plate of the second connecting piece, so that the stress concentration phenomenon of the second connecting piece can be reduced, and the purpose of moving the plastic hinge outwards to the outside of the angle steel is achieved.
7. The connecting modes of the invention are all bolt connection, thus improving the construction speed, being convenient and simple to install, being convenient to disassemble, replace and maintain as well, and being capable of replacing in time when any one part of the connecting piece or the bolt is damaged.
Drawings
FIG. 1 is a schematic view of a hybrid connection node of a fabricated concrete column and an H-shaped steel beam;
FIG. 2 is a side view of a hybrid connection node of fabricated concrete columns and H-shaped steel beams;
FIG. 3 is a schematic view of a connector;
FIG. 4 is a schematic view of a second connecting member;
fig. 5 is a schematic view of a connector III.
Detailed Description
As shown in fig. 1-5, a hybrid connection node of an assembled concrete column and an H-shaped steel beam comprises a precast concrete column 5, an H-shaped steel beam 6, a first connecting piece 1, a second connecting piece 2, a third connecting piece 3 and a high-strength bolt pair, wherein the first connecting piece 1 and the second connecting piece 2 are precast steel structural members, and the third connecting piece 3 is a precast angle steel member; the connecting piece I1 is a channel-shaped piece, and an upper wing plate 1-1 and a lower wing plate 1-2 of the connecting piece I1 are respectively positioned at two ends of a web plate 1-3; the connecting plate 2-1 of the second connecting piece 2 is connected with the side plate 2-2 in a right angle, a rib plate 2-3 is arranged between the connecting plate 2-1 and the side plate 2-2, and a round hole is formed in the center of the rib plate 2-3. The precast concrete column 5 is provided with three groups of embedded bolt rods 4, the bottoms of the embedded bolt rods 4 are in a cross shape and are bound with a reinforcement cage of the precast concrete column 5; the web plate 1-3 of the first connecting piece 1 and the support plate 3-1 of the third connecting piece 3 are fixedly arranged on a group of embedded bolt rods 4 positioned in the middle, the two second connecting pieces 2 are respectively arranged on the upper side and the lower side of the first connecting piece 1, and the connecting plates 2-1 of the two second connecting pieces 2 are respectively fixedly arranged on the other two groups of embedded bolt rods 4; the support plate II 3-2 of the connecting piece III 3 is connected with the beam web 6-3 of the H-shaped steel beam 6 through a high-strength bolt pair, the upper wing plate 1-1 of the connecting piece I1, the upper flange 6-1 of the H-shaped steel beam 6 and the side plate 2-2 of the connecting piece II 2 positioned at the upper part are connected through a high-strength bolt pair, and the lower wing plate 1-2 of the connecting piece I1, the lower flange 6-2 of the H-shaped steel beam 6 and the side plate 2-2 of the connecting piece II 2 positioned at the lower part are connected through a high-strength bolt pair.
The installation process is as follows: firstly, mounting a first connecting piece and a third connecting piece, and then primarily screwing nuts on the precast concrete column 5 and the embedded bolt rods 4 connected with the first connecting piece and the third connecting piece, wherein the first connecting piece is an H-shaped steel beam 6 and other connecting pieces play roles in positioning bolt holes and temporarily supporting the bolt holes; then, mounting a second connecting piece, and primarily screwing a nut on the embedded bolt rod 4 on one side of the second connecting piece, which is connected with the precast concrete column 5; and then hoisting the H-shaped steel beam 6, penetrating high-strength bolts at the upper flange 6-1, the lower flange 6-2 and the beam web 6-3 of the H-shaped steel beam 6, and finally screwing all nuts.
Claims (6)
1. A mixed connection node of an assembled concrete column and an H-shaped steel beam is characterized by comprising a precast concrete column, the H-shaped steel beam, a first connecting piece, a second connecting piece, a third connecting piece and a high-strength bolt pair, wherein the precast concrete column is provided with three groups of embedded bolt rods, a web plate of the first connecting piece is sleeved on the group of embedded bolt rods in the middle and tightly attached to the precast concrete column, a support plate of the third connecting piece is sleeved on the group of embedded bolt rods in the middle and tightly attached to the web plate of the first connecting piece, and a nut is initially screwed on the embedded bolt rods to perform positioning and temporary support; the two second connecting pieces are respectively arranged at the upper side and the lower side of the first connecting piece, connecting plates of the two second connecting pieces are respectively sleeved on the other two groups of embedded bolt rods, and nuts are initially screwed on the embedded bolt rods to implement positioning; the upper flange and the lower flange of the H-shaped steel beam are respectively arranged between the upper flange and the lower flange of the first connecting piece and the side plates of the second connecting pieces, the second supporting plate of the third connecting piece is connected with the web plate of the H-shaped steel beam through a high-strength bolt pair, the upper flange of the first connecting piece, the upper flange of the H-shaped steel beam and the side plate of the second connecting piece positioned on the upper part are connected through a high-strength bolt pair, the lower flange of the first connecting piece, the lower flange of the H-shaped steel beam and the side plate of the second connecting piece positioned on the lower part are connected through a high-strength bolt pair, and all nuts are finally screwed.
2. The hybrid connection node of fabricated concrete column and H-section steel beam according to claim 1, wherein the first and second connecting members are prefabricated steel structural members, and the third connecting member is a prefabricated angle steel member.
3. The hybrid connection node of fabricated concrete column and H-beam according to claim 1, wherein the first connecting member is a channel member, and the upper wing plate and the lower wing plate of the first connecting member are respectively located at both ends of the web.
4. The hybrid connection node of fabricated concrete column and H-shaped steel beam according to claim 1, wherein the connection plate of the second connection member is connected with the side plate at right angle, and a rib plate is arranged between the connection plate and the side plate.
5. The hybrid connection node of fabricated concrete column and H-section steel beam according to claim 4, wherein a circular hole is provided at the center of the rib plate.
6. The hybrid connection node of an assembled concrete column and an H-shaped steel beam according to claim 1, wherein the bottom of the embedded bolt rod is cross-shaped and is bound with a reinforcement cage of the precast concrete column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111147854.9A CN113863506A (en) | 2021-09-29 | 2021-09-29 | A hybrid connection node of prefabricated concrete column and H-shaped steel beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111147854.9A CN113863506A (en) | 2021-09-29 | 2021-09-29 | A hybrid connection node of prefabricated concrete column and H-shaped steel beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113863506A true CN113863506A (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111147854.9A Pending CN113863506A (en) | 2021-09-29 | 2021-09-29 | A hybrid connection node of prefabricated concrete column and H-shaped steel beam |
Country Status (1)
| Country | Link |
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| CN (1) | CN113863506A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115949146A (en) * | 2023-03-14 | 2023-04-11 | 中交第四航务工程勘察设计院有限公司 | Ribbed plate type connecting joint of PC column-steel beam, column-beam system and assembling method thereof |
| CN116044070A (en) * | 2022-12-30 | 2023-05-02 | 中建科技天津有限公司 | Friction energy consumption connection node of assembled externally hung wallboard |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044070A (en) * | 2022-12-30 | 2023-05-02 | 中建科技天津有限公司 | Friction energy consumption connection node of assembled externally hung wallboard |
| CN115949146A (en) * | 2023-03-14 | 2023-04-11 | 中交第四航务工程勘察设计院有限公司 | Ribbed plate type connecting joint of PC column-steel beam, column-beam system and assembling method thereof |
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Application publication date: 20211231 |