CN110984381A - Node for connecting steel structure frame beam column - Google Patents
Node for connecting steel structure frame beam column Download PDFInfo
- Publication number
- CN110984381A CN110984381A CN201911357116.XA CN201911357116A CN110984381A CN 110984381 A CN110984381 A CN 110984381A CN 201911357116 A CN201911357116 A CN 201911357116A CN 110984381 A CN110984381 A CN 110984381A
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- China
- Prior art keywords
- column
- steel
- shaped steel
- node
- flange
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Classifications
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- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2448—Connections between open section profiles
Abstract
The node for connecting the steel structure frame beam column comprises an H-shaped steel column, an H-shaped steel beam and a plurality of groups of friction energy dissipation assemblies, wherein the friction energy dissipation assemblies are used for connecting a column flange of the H-shaped steel column and a beam flange of the H-shaped steel beam, web connecting pieces used for being connected with the H-shaped steel column are arranged on two sides of a beam web of the H-shaped steel beam and used for rotating the H-shaped steel beam when bearing a load, and the node weakens the deformation of the node due to the load bearing through friction sliding energy dissipation of the friction energy dissipation assemblies. The invention utilizes the friction energy dissipation component to weaken the deformation and damage of the earthquake to the node, maintains the relative stability of the main body structure and is also beneficial to the post-earthquake repair; meanwhile, the assembled node can improve the construction efficiency on site and reduce the construction time of the main structure.
Description
Technical Field
The invention relates to the technical field of building structure engineering, in particular to a node for connecting steel structure frame beams and columns.
Background
In order to reduce damage, non-structural damage and related functional disruption of building structures (frames and floors) during high earthquakes, "low damage" construction methods have been developed. Such low damage structures may be achieved by providing sufficient strength to keep them elastic or by appropriate use of vibration isolation, rocking or other techniques. Wherein the low-damage construction research of the steel frame structure is mainly focused on the beam-column joint.
The beam-column node is a key part of the frame structure, the weakest and most easily damaged part is the beam-column node of the frame under the action of earthquake, and the damage of the node can cause the whole frame structure to lose the bearing capacity, so the mechanical property of the node determines the anti-seismic property of the whole frame structure.
In traditional beam column all welded joint, the beam top and bottom flange and web and post are welded on site, and the joint ductility of this form is poor, takes place brittle failure easily in the earthquake, and needs on-site welding, has influenced construction speed and quality greatly, is not suitable for among the assembled steel structure, simultaneously because welding area is big, produces great residual stress easily, influences the atress performance of node.
In traditional high-strength bolt connection beam column node, through high-strength bolt fastening connection, when taking place the earthquake, the energy is through the destruction of bolt and the yield of member even fracture, destroy and dissipate, can't guarantee that other structural component around the structure are intact, can't guarantee overall structure's normal function more to need to change whole structure, cause a large amount of maintenance, reconstruction cost.
Disclosure of Invention
In order to solve the problems, the invention provides a node for connecting steel structure frame beam columns, which has the following specific technical scheme:
the utility model provides a node for connecting steel construction frame beam column, includes H shaped steel post and H shaped steel roof beam, still includes multiunit friction power consumption subassembly, friction power consumption subassembly is used for connecting the column edge of a wing of a column and the roof beam edge of a wing of H shaped steel roof beam of H shaped steel post, the web both sides of H shaped steel roof beam all are provided with the web connecting piece that is used for being connected with H shaped steel post, the web connecting piece rotates when being used for supplying H shaped steel roof beam to bear the load, the node weakens the load and the deformation that takes place through the friction power consumption subassembly's friction slippage power consumption.
Furthermore, the friction energy dissipation assembly comprises a beam flange connecting plate, a gasket, a column flange connecting plate, a gasket and a floating cover plate which are sequentially connected through a plurality of sets of high-strength bolts, the beam flange connecting plate is welded with the beam flange of the H-shaped steel beam, the column flange connecting plate is welded with the column flange of the H-shaped steel column, the gasket, the column flange connecting plate and the floating cover plate are provided with standard bolt holes matched with the high-strength bolts, and the beam flange connecting plate is provided with movable bolt holes capable of allowing the high-strength bolts to move.
Furthermore, the movable bolt hole is a large-size bolt hole matched with a bolt with a first grade higher than the high-strength bolt.
Furthermore, the web connecting piece is an angle steel, and a certain gap is formed between the column flange of the H-shaped steel column and the end side face of the H-shaped steel beam through the angle steel.
Further, the clearance is not less than the sliding distance of the high-strength bolt to one side in the large-size bolt hole.
Furthermore, the angle steel is connected with the H-shaped steel column and the H-shaped steel beam through a plurality of sets of high-strength bolts, standard bolt holes matched with the high-strength bolts are formed in the angle steel connected with the H-shaped steel beam, horizontal long round bolt holes are formed in bolt holes in two ends of the beam web plate connected with the angle steel, and standard bolt holes matched with the high-strength bolts are formed in the middle of the beam web plate.
Further, the shim is a brass shim.
Has the advantages that:
the invention utilizes the friction energy dissipation component to weaken the deformation and damage of the earthquake to the node, maintains the relative stability of the main body structure and is also beneficial to the post-earthquake repair; meanwhile, the assembled node can improve the construction efficiency on site and reduce the construction time of the main structure.
Drawings
Fig. 1 is an overall schematic view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a front view of the present invention.
Fig. 4 is a schematic view of the friction energy dissipation assembly of the present invention.
Fig. 5 is an exploded view of the present invention.
Fig. 6 is a schematic view of the node according to the present invention rotating under load.
In the figure: the steel column comprises 1H-shaped steel columns, 2H-shaped steel beams, 3 friction energy dissipation assemblies, 31 column flange connecting plates, 32 brass base plates, 33 beam flange connecting plates, 34 floating cover plates, 4 web connecting pieces, 5 standard bolt holes, 6 large-size bolt holes, 7 long round bolt holes and 8 high-strength bolts.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments:
as shown in fig. 1 to 6, a node for connecting a steel structure frame beam column, the node is suitable for a light frame structure, and includes an H-shaped steel column 1, an H-shaped steel beam 2, and a plurality of sets of friction energy dissipation assemblies 3, where the friction energy dissipation assemblies 3 are used to connect a column flange of the H-shaped steel column 1 and a beam flange of the H-shaped steel beam 2, web connection members 4 used to connect with the H-shaped steel column 1 are respectively disposed on two sides of a beam web of the H-shaped steel beam 2, the web connection members 4 are used to allow the H-shaped steel beam 2 to rotate when bearing a load, and the node weakens deformation caused by the load borne by the node through friction sliding energy dissipation of the friction energy dissipation assemblies 3.
As shown in fig. 1 and 2, four sets of friction energy dissipation assemblies 3 are respectively arranged on the top surface and the bottom surface of the H-shaped steel beam 2 near the beam flanges at two sides of the H-shaped steel column 1. As shown in fig. 4 and 5, the friction energy dissipation assembly 3 is assembled into an assembly by building blocks, so that each accessory can be replaced conveniently; the beam flange connecting plate 33 is welded with the beam flange of the H-shaped steel beam 2, and the column flange connecting plate 31 is welded with the column flange of the H-shaped steel column 1; the gasket, the column flange connecting plate 31 and the floating cover plate 34 are all provided with standard bolt holes 5 matched with the high-strength bolts 8, the beam flange connecting plate 33 is provided with movable bolt holes capable of moving the high-strength bolts 8, and the movable bolt holes are large-size bolt holes 6 matched with bolts with the specifications higher by one grade than the high-strength bolts 8; in this embodiment, the shim is a brass shim 32.
As shown in fig. 3 and 6, the web connecting member 4 is an angle steel, a certain gap is formed between the flange of the H-shaped steel column 1 and the end side surface of the H-shaped steel beam 2 through the angle steel, and the gap is not smaller than the sliding distance of the high-strength bolt 8 in the large-size bolt hole 6 to one side, so that the H-shaped steel beam 2 has a sufficient rotating space.
As shown in fig. 1 and 5, the angle steel is connected with an H-shaped steel column 1 and an H-shaped steel beam 2 through a plurality of sets of high-strength bolts 8, standard bolt holes 5 matched with the high-strength bolts 8 are formed in the angle steel connected with the H-shaped steel beam 2, horizontal long round bolt holes 7 are formed in bolt holes at two ends of a beam web plate connected with the angle steel, and the standard bolt holes 5 matched with the high-strength bolts 8 are formed in the middle of the beam web plate. In this embodiment, five bolt holes are formed in the web plate, a standard bolt hole 5 is used in the middle of the web plate, and two long round bolt holes 7 in the horizontal direction are used in the two sides of the web plate.
As shown in fig. 6, the beam flange connecting plate 33 of the H-shaped steel beam 2 is provided with large-size bolt holes 6, and the web plate of the H-shaped steel beam 2 is provided with long round bolt holes 7, so that the H-shaped steel beam 2 rotates when the node bears load, and similarly, a plastic hinge is formed at the end part of the H-shaped steel beam 2, so that the H-shaped steel beam 2 serving as a main stress member is in an elastic state; when the H-shaped steel beam 2 rotates, the friction energy dissipation assembly 3 can dissipate energy through friction sliding instead of yielding or buckling, plastic deformation and damage appearing on the node after the earthquake are weakened to the maximum extent, and residual displacement after the earthquake can be eliminated by loosening the high-strength bolt 8 at the friction energy dissipation assembly 3 after the earthquake, so that the main body structure can be kept relatively stable in the earthquake process.
As shown in fig. 6, when an earthquake occurs, the H-shaped steel beam 2 bears a load, and rotates around the high-strength bolt 8 in the standard bolt hole 5 on the web plate, and at this time, the friction energy dissipation assembly 3 dissipates energy by generating friction sliding to eliminate the energy generated by the earthquake on the node; when the rotation starts, the floating cover plate 34 and the column flange connecting plate 31 are integrated in a short time, the floating cover plate 34 does not slide, and only the beam flange connecting plate 33 and the column flange connecting plate 31 slide relatively; along with the displacement increase, the high-strength bolt 8 sideslips in the large-size bolt hole 6, and at the moment, the high-strength bolt 8 pulls the floating cover plate 34 to slide, so that the seismic energy can be well dissipated. The node can also increase the sliding force by changing the specification and the number of the bolts, improve the sliding energy consumption efficiency and achieve the low loss energy consumption of the structure. A brass gasket 32 is arranged in the friction energy dissipation assembly 3, so that the stability of friction hysteresis energy dissipation can be improved; meanwhile, the problems of abrasion of the friction surface and mutual erosion of contact surface materials caused by long-time contact are reduced. In post-earthquake repair, if the brass shim 32 is worn, only the brass shim 32 needs to be replaced; or the high-strength bolt 8 is loosened and replaced, so that the connection strength before the earthquake can be recovered, and the repairing is convenient and quick, economic and efficient.
Claims (7)
1. The utility model provides a node for connecting steel construction frame beam column, includes H shaped steel post and H shaped steel roof beam, its characterized in that: the node comprises a steel column and a steel beam, and is characterized by further comprising a plurality of groups of friction energy dissipation assemblies, wherein the friction energy dissipation assemblies are used for connecting a column flange of the steel column H and a beam flange of the steel beam H, web connecting pieces used for being connected with the steel column H are arranged on two sides of a beam web of the steel beam H, the web connecting pieces are used for enabling the steel beam H to rotate when bearing a load, and the node weakens the deformation of the node caused by the load bearing through friction sliding energy dissipation of the friction energy dissipation assemblies.
2. A joint for connecting steel structural frame beams and columns according to claim 1, wherein: the friction energy dissipation assembly comprises a beam flange connecting plate, a gasket, a column flange connecting plate, a gasket and a floating cover plate which are sequentially connected through a plurality of sets of high-strength bolts, the beam flange connecting plate is welded with the beam flange of the H-shaped steel beam, the column flange connecting plate is welded with the column flange of the H-shaped steel column, the gasket, the column flange connecting plate and the floating cover plate are all provided with standard bolt holes matched with the high-strength bolts, and the beam flange connecting plate is provided with movable bolt holes capable of enabling the high-strength bolts to move.
3. A joint for connecting steel structural frame beams and columns according to claim 2, wherein: the movable bolt hole is a large-size bolt hole matched with a bolt with a first grade higher than the high-strength bolt.
4. A joint for connecting steel structural frame beams and columns according to claim 3, wherein: the web connecting piece is an angle steel, and a certain gap is formed between the column flange of the H-shaped steel column and the end side face of the H-shaped steel beam through the angle steel.
5. A node for connecting steel structural frame beam columns according to claim 4, wherein: the clearance is not less than the sliding distance of the high-strength bolt to one side in the large-size bolt hole.
6. A node for connecting steel structural frame beam columns according to claim 5, wherein: the angle steel is connected with the H-shaped steel column and the H-shaped steel beam through a plurality of sets of high-strength bolts, standard bolt holes matched with the high-strength bolts are formed in the angle steel connected with the H-shaped steel beam, horizontal long round bolt holes are formed in bolt holes in two ends of the beam web plate connected with the angle steel, and standard bolt holes matched with the high-strength bolts are formed in the middle of the bolt holes.
7. A joint for connecting steel structural frame beams and columns according to claim 2, wherein: the gasket is a brass gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911357116.XA CN110984381A (en) | 2019-12-25 | 2019-12-25 | Node for connecting steel structure frame beam column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911357116.XA CN110984381A (en) | 2019-12-25 | 2019-12-25 | Node for connecting steel structure frame beam column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110984381A true CN110984381A (en) | 2020-04-10 |
Family
ID=70076434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911357116.XA Pending CN110984381A (en) | 2019-12-25 | 2019-12-25 | Node for connecting steel structure frame beam column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110984381A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647602A (en) * | 2020-12-16 | 2021-04-13 | 清华大学 | Gusset plate for releasing relative rotation and bending deformation of beam column of inclined support |
| CN113026968A (en) * | 2021-03-05 | 2021-06-25 | 浙大宁波理工学院 | Buckling-resistant steel structure primary and secondary beam connecting joint |
| CN113445801A (en) * | 2021-07-16 | 2021-09-28 | 辽宁工程技术大学 | Self-resetting energy consumption device for controlling rotational rigidity of beam column node |
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| JP3842484B2 (en) * | 1999-05-19 | 2006-11-08 | 積水ハウス株式会社 | Column and beam joint structure and building having the same |
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| CN107355002A (en) * | 2017-08-28 | 2017-11-17 | 山东大学 | The unilateral connecting node of repair type beam-column and steel building after shake |
| CN207032512U (en) * | 2017-05-23 | 2018-02-23 | 南昌大学 | A kind of new high ductility steel-structure beam-column node connected by marmem |
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2019
- 2019-12-25 CN CN201911357116.XA patent/CN110984381A/en active Pending
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| JP2009209592A (en) * | 2008-03-05 | 2009-09-17 | Itec Corp | Junction structure for steel frame column and steel frame beam |
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| CN107100281A (en) * | 2017-05-23 | 2017-08-29 | 南昌大学 | A kind of high ductility steel-structure beam-column node of reaming type connected by marmem and its construction method |
| CN207032512U (en) * | 2017-05-23 | 2018-02-23 | 南昌大学 | A kind of new high ductility steel-structure beam-column node connected by marmem |
| CN107355002A (en) * | 2017-08-28 | 2017-11-17 | 山东大学 | The unilateral connecting node of repair type beam-column and steel building after shake |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647602A (en) * | 2020-12-16 | 2021-04-13 | 清华大学 | Gusset plate for releasing relative rotation and bending deformation of beam column of inclined support |
| CN113026968A (en) * | 2021-03-05 | 2021-06-25 | 浙大宁波理工学院 | Buckling-resistant steel structure primary and secondary beam connecting joint |
| CN113445801A (en) * | 2021-07-16 | 2021-09-28 | 辽宁工程技术大学 | Self-resetting energy consumption device for controlling rotational rigidity of beam column node |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200410 |
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| RJ01 | Rejection of invention patent application after publication |