CN113898068A - Assembled auto-lock steel-pipe column that excels in and combination beam node - Google Patents
Assembled auto-lock steel-pipe column that excels in and combination beam node Download PDFInfo
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- CN113898068A CN113898068A CN202111251329.1A CN202111251329A CN113898068A CN 113898068 A CN113898068 A CN 113898068A CN 202111251329 A CN202111251329 A CN 202111251329A CN 113898068 A CN113898068 A CN 113898068A
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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
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/024—Structures with steel columns and beams
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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
- E04B2001/2415—Brackets, gussets, joining plates
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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
- E04B2001/2418—Details of bolting
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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
- E04B2001/2427—Connection details of the elongated load-supporting parts using adhesives or hardening masses
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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
- E04B2001/2454—Connections between open and closed section profiles
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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
- E04B2001/2484—Details of floor panels or slabs
Abstract
The invention discloses an assembled self-locking high-strength steel pipe column and composite beam node, which comprises a high-strength steel pipe column and an H-shaped beam, wherein a high-strength cross stiffening rib is arranged in the high-strength steel pipe column; the high-strength steel pipe column is fixedly connected with a T-shaped piece and an energy-consumption T-shaped piece; the flanges of the T-shaped piece and the energy consumption T-shaped piece are fixedly connected with a high-strength cross stiffening rib arranged in the high-strength steel pipe column through a high-strength bolt; the upper flange and the lower flange of the H-shaped beam are respectively connected with the web of the T-shaped piece and the web of the energy dissipation T-shaped piece, and the reinforced concrete floor slab and the upper flange of the H-shaped beam are connected through the high-strength bolt to form the combined beam. Under the action of an earthquake, inelastic deformation of the node is concentrated on the energy consumption T-shaped piece, the components such as the beam and the column keep large earthquake elasticity, and the energy consumption T-shaped piece plays a role of a fuse, so that only the damaged energy consumption T-shaped piece needs to be replaced in the post-earthquake repair process; the embedded high-strength steel cross-shaped stiffening rib replaces the effect of a nut, so that the anti-loosening performance is achieved, and the anti-pulling capacity of the bolt is improved.
Description
Technical Field
The invention belongs to the technical field of beam column nodes of an assembly type steel structure system, and particularly relates to an assembly type self-locking high-strength steel pipe column and a combined beam node.
Background
The fabricated steel structure building has a series of advantages of energy conservation, environmental protection, short construction period, effective control of the quality of the welding line of the member and the like, and meets the requirements of transformation upgrading and sustainable development of the modern building industry.
In an assembled steel structural system, steel columns are the primary vertical load bearing members. The section characteristics of the H-shaped column about the two symmetry axes are greatly different, so that the stability about the two symmetry axes is also greatly different; the steel pipe column is good in stability, but the bolts cannot enter the steel pipe to be installed inside due to the fact that the cross section of the steel pipe column is closed when the steel pipe column is connected with a steel beam, so that part of students propose that unilateral bolts or steel plate-bolt connection pairs are installed from one side and screwed down from one side, and the shortcoming that a construction method is not enough when the traditional high-strength bolt with nuts is used for connection of a closed cross section is overcome. However, the following problems still exist in implementing such nodes: i) the single-side bolt has low anti-pulling capacity and is easy to pull out from the column wall; ii) the traditional steel plate-bolt connecting pair is that a screw hole is tapped on a steel plate, and the steel plate-bolt connecting pair is matched with a common bolt to realize unilateral screwing, and because the rigidity and the strength of the steel plate are far lower than that of a nut of a high-strength bolt, the self-loosening probability of the steel plate is higher, and the connection performance uncertainty is large. In addition, the beam column member is damaged under the action of an earthquake, so that the beam column member is difficult to repair after the earthquake, a repairable novel assembly type beam column node is developed, and a bolt is difficult to loosen under the action of fatigue load, so that the beam column member becomes the problem to be solved by the current assembly type structure box.
Disclosure of Invention
The invention aims to provide an assembled self-locking high-strength steel pipe column and combination beam node, which improves the ductility of a structure using high-strength steel and realizes the function of repairable after node earthquake.
The technical scheme adopted by the invention is as follows: a node of an assembled self-locking high-strength steel pipe column and a composite beam comprises the high-strength steel pipe column, a high-strength steel H-shaped beam and a reinforced concrete floor slab, wherein a high-strength cross stiffening rib is arranged in the high-strength steel pipe column; the high-strength steel pipe column is fixedly connected with a T-shaped piece and an energy-consumption T-shaped piece; the flanges of the T-shaped piece and the energy consumption T-shaped piece are fixedly connected with a high-strength cross stiffening rib arranged in the high-strength steel pipe column through a high-strength bolt; the upper flange and the lower flange of the H-shaped beam are respectively connected with the web of the T-shaped piece and the web of the energy-consuming T-shaped piece; and the reinforced concrete floor slab with the reserved circular hole is connected with the upper flange of the H-shaped beam through a high-strength bolt to form a composite beam.
The present invention is also characterized in that,
and the flange plate of the T-shaped piece is fixedly connected with the high-strength steel pipe column wall and the flange plate of the high-strength cross stiffening rib through high-strength bolts.
And the flange plate of the energy-consuming T-shaped part is fixedly connected with the high-strength steel pipe column wall and the flange plate of the high-strength cross stiffening rib through high-strength bolts.
The web plate of the energy-consuming T-shaped piece comprises an energy-consuming part and a connecting part which are connected with each other, and the connecting part is fixedly connected with the lower flange of the H-shaped beam; the energy dissipation part is fixedly connected with the high-strength steel pipe column, the energy dissipation part comprises a transverse plate which is positioned on the same plane with the connecting part and two vertical plates which are vertically welded with the transverse plate, and a buckling-proof plate is fixedly welded between the two vertical plates; and a stiffening rib in the vertical direction is also welded below the transverse plates of the connecting part and the energy consumption part, and the lower end of the stiffening rib is welded with the buckling-restrained plate together.
A U-shaped hole is formed in the transverse plate of the energy consumption portion of the energy consumption T-shaped piece, a groove is formed in one end, close to the flange, of the transverse plate, and a reserved deformation hole is formed between the groove and the flange.
The T-shaped piece web plate is fixedly connected with the upper flange of the H-shaped beam through a high-strength bolt; the connecting part of the web plate of the energy-consuming T-shaped part is fixedly connected with the lower flange of the H-shaped beam through a high-strength bolt.
The upper flange of the H-shaped beam is fixedly connected with the reinforced concrete floor through a high-strength bolt to form a combined beam, and the H-shaped beam is made of high-strength steel.
The U-shaped holes are multiple and are uniformly arranged on the energy consumption part transverse plate of the energy consumption T-shaped piece.
The invention has the beneficial effects that: the invention relates to an assembled self-locking high-strength steel pipe column and combination beam node, which is formed by processing and manufacturing a high-strength steel pipe column, a high-strength steel H-shaped beam, a T-shaped piece, an energy-consumption T-shaped piece, a high-strength steel cross stiffening rib and a reinforced concrete floor with bolt round holes in a factory. And (4) forming bolt round holes at corresponding positions of the high-strength steel pipe column, the H-shaped beam, the T-shaped piece, the energy-consumption T-shaped piece and the high-strength steel cross stiffening rib according to design requirements. Inserting the high-strength steel cross stiffening rib into the steel pipe column, fixing the high-strength steel cross stiffening rib by using a temporary bolt, and tapping the high-strength steel cross stiffening rib at the position of the bolt round hole. And hoisting the high-strength steel H-shaped beam to the node position on site, connecting the high-strength steel pipe columns by using high-strength bolts, and installing the reinforced concrete floor by using the high-strength bolts, thereby completing the assembly of the whole combined node. The embedded high-strength steel cross-shaped stiffening rib replaces the function of a nut, and has the anti-loosening performance. The cross stiffening rib wing plate adopts an inclined bearing surface and a slit structure at the upper part of the inclined bearing surface near the high-strength bolt. When the internal pretightening force of the high-strength bolt is gradually increased, the inclined bearing surface is slowly attached to the column wall plate, the rotation center of the bolt is gradually deviated due to the inclined bearing surface of the wing plate, the bolt is bent to enable the threads to be tightly attached to the side surfaces of the bolt, and simultaneously, the crests and the roots of the internal and external threads are tightly meshed. When the slit is narrowed under the pretension force of the bolt, the thread pitch of the internal thread is reduced, the engagement between the threads enters the slit side, the larger the pretension force is, the larger the engagement area between the threads is, and the larger the friction force is. Therefore, the combined action of the two actions improves the pulling resistance of the bolt even if the bolt has the anti-loosening performance. Under the action of an earthquake, inelastic deformation of the node is concentrated on the energy-consumption T-shaped piece, and members such as beams and columns keep large earthquake elasticity, so that the fuse has the function of a fuse and is convenient to replace after the earthquake. The frame beam mainly adopts bending deformation, the bending moment at the beam end can be simplified into a pair of axial tension and pressure acting on the upper flange and the lower flange of the beam, the U-shaped hole firstly yields to participate in dissipating earthquake energy under the action of reciprocating axial force of the energy dissipation T-shaped piece of the lower flange of the steel beam during earthquake, the anti-bending plate provides an out-of-plane supporting effect for the stiffening rib, and the reduction of energy dissipation capacity caused by the fact that the stiffening rib is linked with the out-of-plane buckling of the U-shaped hole is avoided. The high-strength bolt is used as a shearing resistant part to transmit the internal force borne by the floor slab to the steel beam, is a bolt pre-tightening friction type connecting part and is convenient to remove or replace in the floor slab operation and maintenance process. After the high-strength bolt applies pretension, local extrusion stress is generated on a steel-concrete interface so as to increase friction force to resist relative sliding of the interface and transfer in-plane shearing force. Generally, the high-strength bolt rod diameter is about 2-4 mm smaller than the bolt hole diameter on the steel beam and the concrete slab, and after the friction force on the interface is overcome, the high-strength bolt slides in the bolt hole range, so that the earthquake damage of the floor slab can be reduced.
Drawings
FIG. 1 is a left side view of an overall structure of a node of an assembled self-locking high-strength steel pipe column and a composite beam according to the invention;
FIG. 2 is an axonometric view of an energy dissipation T-shaped piece of a node of an assembled self-locking high-strength steel pipe column and a combination beam of the invention;
FIG. 3 is a schematic structural view of an energy-consuming T-shaped part of a node of an assembled self-locking high-strength steel pipe column and a composite beam;
FIG. 4 is a top view of the connection between the high-strength steel cross stiffening rib and the high-strength steel pipe column of the assembled self-locking high-strength steel pipe column and the combination beam node of the invention;
FIG. 5 is an axonometric view of a high-strength cross stiffening rib of a node of an assembled self-locking high-strength steel pipe column and a composite beam of the invention;
in the figure, 1, a high-strength steel pipe column, 2, a high-strength steel cross stiffening rib, 3, a slit, 4, a T-shaped piece, 5, a high-strength bolt, 6, an energy consumption T-shaped piece, 7, an H-shaped beam, 8, a stiffening rib, 9, a buckling-proof plate, 10, a reserved deformation hole, 11, a U-shaped hole and 12, a reinforced concrete floor slab.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to an assembled self-locking high-strength steel pipe column and composite beam node, which is described in detail below with reference to the accompanying drawings and specific embodiments.
The innovative assembled self-locking high-strength steel pipe column and combination beam joint structure is shown in figure 1 and comprises a high-strength steel pipe column 1 and an H-shaped beam 7, wherein a high-strength cross stiffening rib 2 (shown in figures 4-5) is arranged in the high-strength steel pipe column 1; the high-strength steel pipe column 1 is fixedly connected with a T-shaped part 4 and an energy consumption T-shaped part 6; the flanges of the T-shaped piece 4 and the energy consumption T-shaped piece 6 are fixedly connected with a high-strength cross stiffening rib 2 arranged in the high-strength steel pipe column 1 through a high-strength bolt 5; the upper flange and the lower flange of the H-shaped beam 7 are respectively connected with the web of the T-shaped piece 4 and the web of the energy-consuming T-shaped piece 6.
The flange plate of the T-shaped part 4 is fixedly connected with the column wall of the high-strength steel pipe column 1 and the flange plate of the high-strength cross stiffening rib 2 through high-strength bolts 5.
The flange plate of the energy-consuming T-shaped part 6 is fixedly connected with the column wall of the high-strength steel pipe column 1 and the flange plate of the high-strength cross stiffening rib 2 through high-strength bolts 5.
As shown in fig. 2-3, the web of the energy dissipating tee 6 includes an energy dissipating portion and a connecting portion connected to each other, and the connecting portion is fixedly connected to the lower flange of the H-beam 7; the energy dissipation part is fixedly connected with the high-strength steel pipe column 1, the energy dissipation part comprises a transverse plate which is positioned on the same plane with the connecting part and two vertical plates which are vertically welded with the transverse plate, and a buckling-restrained plate 9 is fixedly welded between the two vertical plates; and a stiffening rib 8 in the vertical direction is welded below the transverse plates of the connecting part and the energy consumption part, and the lower end of the stiffening rib 8 is welded with a buckling-restrained plate 9. The anti-buckling plate 9 provides an out-of-plane supporting effect for the stiffening rib 8, and energy dissipation capacity is prevented from being reduced due to the fact that the stiffening rib 8 is linked with the U-shaped hole 11 to buckle out of the plane.
The transverse plate of the energy consumption part of the energy consumption T-shaped part 6 is provided with a U-shaped hole 11, one end of the transverse plate close to the flange is provided with a groove, and a reserved deformation hole 10 is formed between the groove and the flange.
The web of the T-shaped piece 4 is fixedly connected with the upper flange of the H-shaped beam 7 through a high-strength bolt; the connecting part of the web plate of the energy dissipation T-shaped part 6 is fixedly connected with the lower flange of the H-shaped beam 7 through a high-strength bolt.
The upper flange of the H-shaped beam 7 is fixedly connected with the reinforced concrete floor 12 through a high-strength bolt to form a composite beam, and the H-shaped beam 7 is made of high-strength steel.
The U-shaped holes 11 are uniformly arranged on the transverse plate of the energy consumption part of the energy consumption T-shaped part 6.
Inserting the high-strength steel cross stiffening rib 2 into the steel pipe column, fixing the high-strength steel cross stiffening rib 2 by using a temporary bolt, and tapping the high-strength steel cross stiffening rib 2 by tapping holes in the position of a bolt round hole. The flange plate of the high-strength steel cross-shaped stiffening rib 2 replaces the function of a nut, and has the anti-loosening performance. The flange plate of the high-strength steel cross-shaped stiffening rib 2 adopts an inclined pressure-bearing surface and an upper slit 3 structure thereof near the high-strength bolt.
The energy dissipation T-shaped piece 6 is made of common steel, a web plate of the energy dissipation T-shaped piece 6 is provided with a reserved deformation hole 10 and a U-shaped hole 11, a stiffening rib 8 is welded at the bottom of the web plate, and an anti-buckling plate 9 is welded at the bottom of the stiffening rib 8. And a high-strength bolt 5 is used for connecting and fixing the web of the T-shaped piece 4 and the upper flange of the H-shaped beam 7.
The H-shaped beam 7 is made of high-strength steel.
The invention discloses an innovative assembling mode of a joint of an assembled self-locking high-strength steel pipe column and a composite beam, which comprises the following steps:
in a factory, a high-strength steel pipe column 1, a high-strength cross stiffening rib 2, a T-shaped part 4, an energy-consumption T-shaped part 6 and an H-shaped beam 7 are welded and formed, a reinforced concrete floor with bolt round holes is prefabricated, and the bolt round holes are arranged at corresponding positions of the high-strength steel pipe column 1, the high-strength cross stiffening rib 2, the T-shaped part 4, the energy-consumption T-shaped part 6 and the H-shaped beam 7 according to design requirements. Inserting the high-strength cross stiffening rib 2 into a bolt circular hole corresponding position in the high-strength steel pipe column 1, fixing the high-strength cross stiffening rib with a temporary bolt, penetrating the high-strength bolt 5 through a T-shaped part 4 flange plate, the column wall of the high-strength steel pipe column 1 and a flange plate of the high-strength cross stiffening rib 2, and connecting and fixing the T-shaped part 4 flange plate and the high-strength steel pipe column 1, wherein the flange plate of the high-strength cross stiffening rib 2 plays a role of a nut on the high-strength bolt 5 connecting the T-shaped part 4 flange plate and the column wall of the high-strength steel pipe column 1; the high-strength bolt penetrates through the energy-consumption T-shaped part 6 flange plate, the high-strength steel pipe column 1 column wall and the high-strength cross stiffening rib 2 flange plate, the energy-consumption T-shaped part 6 flange plate and the high-strength steel pipe column 1 are connected and fixed, and the high-strength bolt 5 connecting the energy-consumption T-shaped part 6 flange plate and the high-strength steel pipe column 1 column wall plays a role of a nut by the flange plate of the high-strength cross stiffening rib 2; transporting the prefabricated part to an assembly site, hoisting an H-shaped beam 7 to a node position, penetrating a web plate of a T-shaped part 4 and an upper flange plate of the H-shaped beam 7 by using a high-strength bolt 5, connecting and fixing the web plate of the T-shaped part 4 and the upper flange plate of the H-shaped beam 7, penetrating a lower flange plate of the high-strength steel H-shaped beam 7 and a web plate of an energy-consuming T-shaped part 6 by using the high-strength bolt 5, and connecting and fixing the H-shaped beam 7 and the web plate of the energy-consuming T-shaped part 6; and (3) penetrating the high-strength bolt 5 through the prefabricated round hole of the reinforced concrete floor 12 and the bolt round hole at the position corresponding to the upper flange of the high-strength steel H-shaped beam 7, connecting and fixing the reinforced concrete floor 12 and the high-strength steel H-shaped beam 7 to form a composite beam, and then pouring high-strength grouting material at the prefabricated round hole of the reinforced concrete floor 12. The assembled self-locking high-strength steel pipe column and combination beam joint avoids on-site welding construction and improves construction efficiency. And the welding forming of each component is finished in a factory, so that the quality of the welding seam is effectively controlled. Compared with the traditional steel frame beam column node, under the action of an earthquake, the inelastic deformation of the node is concentrated on the energy consumption T-shaped part made of ordinary steel, the components such as the beam and the column keep large earthquake elasticity, the energy consumption T-shaped part plays a role of a fuse, and the energy consumption T-shaped part is convenient to replace after the earthquake. The frame beam mainly adopts bending deformation, the bending moment at the beam end can be simplified into a pair of axial tension and pressure acting on the upper flange and the lower flange of the beam, the U-shaped hole firstly yields to participate in dissipating earthquake energy under the action of reciprocating axial force of the energy dissipation T-shaped piece of the lower flange of the steel beam during earthquake, the anti-bending plate provides an out-of-plane supporting effect for the stiffening rib, and the reduction of energy dissipation capacity caused by the fact that the stiffening rib is linked with the out-of-plane buckling of the U-shaped hole is avoided. The high-strength bolt is used as a shearing resistant part to transmit the internal force borne by the floor slab to the steel beam, is a bolt pre-tightening friction type connecting part and is convenient to remove or replace in the floor slab operation and maintenance process. After the high-strength bolt applies pretension, local extrusion stress is generated on a steel-concrete interface so as to increase friction force to resist relative sliding of the interface and transfer in-plane shearing force. Generally, the high-strength bolt rod diameter is about 2-4 mm smaller than the bolt hole diameter on the steel beam and the concrete slab, and after the friction force on the interface is overcome, the high-strength bolt slides in the bolt hole range, so that the earthquake damage of the floor slab can be reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. An assembled self-locking high-strength steel pipe column and composite beam node is characterized by comprising a high-strength steel pipe column (1), an H-shaped beam (7) and a reinforced concrete floor (12), wherein a high-strength cross stiffening rib (2) is arranged in the high-strength steel pipe column (1); the high-strength steel pipe column (1) is fixedly connected with a T-shaped piece (4) and an energy-consumption T-shaped piece (6); the flanges of the T-shaped part (4) and the energy-consumption T-shaped part (6) are fixedly connected with a high-strength cross stiffening rib (2) arranged in the high-strength steel pipe column (1) through a high-strength bolt (5); and the upper flange and the lower flange of the H-shaped beam (7) are respectively connected with the web of the T-shaped piece (4) and the web of the energy-consuming T-shaped piece (6).
2. The assembled self-locking high-strength steel pipe column and composite beam node as claimed in claim 1, wherein the flange plate of the T-shaped member (4), the column wall of the high-strength steel pipe column (1) and the flange plate of the high-strength cross-shaped stiffening rib (2) are fixedly connected through a high-strength bolt (5).
3. The assembled self-locking high-strength steel pipe column and combination beam node as claimed in claim 1, wherein the flange plate of the energy-consuming T-shaped piece (6), the column wall of the high-strength steel pipe column (1) and the flange plate of the high-strength cross-shaped stiffening rib (2) are fixedly connected through high-strength bolts (5).
4. The assembled self-locking high-strength steel pipe column and combination beam joint as claimed in claim 1, wherein the web of the energy-consuming tee (6) comprises an energy-consuming part and a connecting part which are connected with each other, and the connecting part is fixedly connected with the lower flange of the H-shaped beam (7); the energy dissipation part is fixedly connected with the high-strength steel pipe column (1), the energy dissipation part comprises a transverse plate which is positioned on the same plane with the connecting part and two vertical plates which are vertically welded with the transverse plate, and an anti-buckling plate (9) is fixedly welded between the two vertical plates; and a stiffening rib (8) is also welded below the transverse plates of the connecting part and the energy consumption part in the vertical direction, and the lower end of the stiffening rib (8) is welded with the anti-buckling plate (9).
5. The assembled self-locking high-strength steel pipe column and combination beam joint as claimed in claim 1, wherein a U-shaped hole (11) is formed in a transverse plate of the energy dissipation part of the energy dissipation T-shaped part (6), a groove is formed in one end, close to the flange, of the transverse plate, and a reserved deformation hole (10) is formed between the groove and the flange.
6. The node of the assembled self-locking high-strength steel pipe column and the combined beam according to claim 4, wherein a web of the T-shaped part (4) is fixedly connected with an upper flange of the H-shaped beam (7) through a high-strength bolt; and the connecting part of the web plate of the energy-consuming T-shaped part (6) is fixedly connected with the lower flange of the H-shaped beam (7) through a high-strength bolt.
7. The assembled self-locking high-strength steel pipe column and composite beam joint as claimed in claim 5, wherein the upper flange of the H-shaped beam (7) is fixedly connected with the reinforced concrete floor (12) through a high-strength bolt to form a composite beam, and the H-shaped beam (7) is made of high-strength steel.
8. The assembled self-locking high-strength steel pipe column and combination beam joint as claimed in claim 5, wherein the U-shaped holes (11) are uniformly arranged on a transverse plate of a power consumption part of the power consumption T-shaped part (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111251329.1A CN113898068B (en) | 2021-10-26 | 2021-10-26 | Assembled auto-lock steel-pipe column that excels in and combination beam node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111251329.1A CN113898068B (en) | 2021-10-26 | 2021-10-26 | Assembled auto-lock steel-pipe column that excels in and combination beam node |
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| US10900215B1 (en) * | 2020-03-24 | 2021-01-26 | King Saud University | Reinforced joint for beam-column connection |
| CN112523351A (en) * | 2020-12-22 | 2021-03-19 | 华南理工大学 | Steel frame buckling restrained energy-consuming beam-column joint with replaceable post-earthquake structure |
| CN213868289U (en) * | 2020-11-11 | 2021-08-03 | 杭萧钢构（山东）有限公司 | Assembly type steel structure square pipe column and beam connecting node structure |
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| CN103061416A (en) * | 2011-10-21 | 2013-04-24 | 长江大学 | Joint structure of steel-pipe-restraining steel concrete columns and reinforced concrete beams |
| CN207048074U (en) * | 2017-06-26 | 2018-02-27 | 上海阿格坦姆建筑科技有限公司 | A kind of H profile steel beam and the full bolt connection node of interior quadrate steel pipe column of putting more energy into and a kind of crisscross joint are put more energy into block |
| CN207160233U (en) * | 2017-08-28 | 2018-03-30 | 山东大学 | The unilateral connecting node of repair type beam-column and steel building after shake |
| CN207314554U (en) * | 2017-10-17 | 2018-05-04 | 上海阿格坦姆建筑科技有限公司 | A kind of girder steel and the cross interior full bolt connection node of quadrate steel pipe column of putting more energy into |
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| CN109653357A (en) * | 2019-01-25 | 2019-04-19 | 北京工业大学 | A kind of buckling-restrained assembled beam-column combined joint of the recoverable function of modularized design |
| US10900215B1 (en) * | 2020-03-24 | 2021-01-26 | King Saud University | Reinforced joint for beam-column connection |
| CN213868289U (en) * | 2020-11-11 | 2021-08-03 | 杭萧钢构（山东）有限公司 | Assembly type steel structure square pipe column and beam connecting node structure |
| CN112523351A (en) * | 2020-12-22 | 2021-03-19 | 华南理工大学 | Steel frame buckling restrained energy-consuming beam-column joint with replaceable post-earthquake structure |
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| CN113898068B (en) | 2023-03-21 |
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