CN110847358B - Steel structure self-resetting beam column node connecting device - Google Patents
Steel structure self-resetting beam column node connecting device Download PDFInfo
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- CN110847358B CN110847358B CN201911066593.0A CN201911066593A CN110847358B CN 110847358 B CN110847358 B CN 110847358B CN 201911066593 A CN201911066593 A CN 201911066593A CN 110847358 B CN110847358 B CN 110847358B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 148
- 239000010959 steel Substances 0.000 title claims abstract description 148
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 45
- 238000005265 energy consumption Methods 0.000 claims abstract description 33
- 210000002435 tendon Anatomy 0.000 claims abstract description 29
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims abstract description 27
- 238000013016 damping Methods 0.000 claims abstract description 6
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 210000001015 abdomen Anatomy 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 2
- 239000003351 stiffener Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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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
- E04B2001/2445—Load-supporting elements with reinforcement at the connection point other than the connector
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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
- E04B2001/2448—Connections between open section profiles
Abstract
The invention provides a steel structure self-resetting beam column joint connecting device which comprises a steel frame column, a steel frame beam, a connecting assembly and a staged energy dissipation damper, the flange connecting plate, the web connecting plate, the prestressed tendon and the beam transverse reinforcing rib are welded, the side face of the connecting assembly is welded with the second side face of the steel frame column, the first longitudinal connecting plate and the fourth longitudinal connecting plate of the connecting assembly are fixedly connected with the two side faces of the steel frame beam through the flange connecting plate respectively, the short edge of the L-shaped upper connecting plate with staged energy consumption damping is fixedly connected with the first beam transverse reinforcing rib, the folded surface lower connecting plate with staged energy consumption damping is fixedly connected with the second longitudinal connecting plate of the connecting assembly, the web connecting plate fixedly connects the transverse connecting plate of the connecting assembly with the steel frame beam, the first end of the prestressed tendon is fixedly connected with the first side face of the steel frame column, and the second end of the prestressed tendon penetrates through the second side face of the. The node method is convenient to connect and has strong energy consumption and self-resetting capability.
Description
Technical Field
The invention relates to the technical field of building structure earthquake resistance, in particular to a steel structure self-resetting beam-column joint connecting device.
Background
China is a country with frequent earthquakes, and has high requirements on the earthquake resistance of building structures, and particularly, the earthquake resistance problem of the existing high-rise and super high-rise buildings is very important. In recent years, energy consumption and recoverable functional structures become research hotspots and are attracted by people.
The steel structure has the advantages of high strength, good earthquake resistance, short construction period and the like, and is widely applied to various building structures. Beam-column joints are key components in steel frames, which ensure the cooperative work of beams and columns and make the structure form a whole. However, the traditional steel frame structure has weak anti-seismic performance and poor self-resetting capability, and is easy to deform and damage in earthquake.
Therefore, the development of a self-resetting steel frame with strong energy consumption capability and certain self-resetting function has become a technical problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
Aiming at the defects of the existing beam-column node, the invention provides a steel structure self-resetting beam-column node connecting device, which analyzes the stress characteristics and the energy consumption mechanism of the node by referring to the structure of the self-resetting beam-column node at home and abroad, so that the steel structure has better energy consumption capability and stronger self-resetting capability.
The invention provides a steel structure self-resetting beam-column joint connecting device which comprises a steel frame column, a steel frame beam, a connecting assembly, a staged energy dissipation damper, a flange connecting plate, a web connecting plate, a prestressed tendon and a beam transverse reinforcing rib. The steel frame column and the steel frame beam are both H-shaped steel, the two side faces of one end of the steel frame beam are respectively provided with an oval long hole, the connecting assembly comprises a transverse connecting plate, a first longitudinal connecting plate, a second longitudinal connecting plate, a third longitudinal connecting plate and a fourth longitudinal connecting plate, the first end of the transverse connecting plate is welded with the first longitudinal connecting plate, the second end of the transverse connecting plate is welded with the fourth longitudinal connecting plate, the second longitudinal connecting plate and the third longitudinal connecting plate are respectively welded in the middle of the transverse connecting plate, the first longitudinal connecting plate and the fourth longitudinal connecting plate are provided with oval long holes, the second longitudinal connecting plate and the third longitudinal connecting plate are provided with round holes, and the staged energy dissipation damping comprises an L-shaped upper connecting plate, a folded surface lower connecting plate, a first energy dissipation steel sheet and a second energy dissipation steel sheet, the L-shaped upper connecting plate is respectively connected with the lower folded surface connecting plate in a welded mode through the first energy-consuming steel sheet and the second energy-consuming steel sheet, the flange connecting plate comprises a first flange connecting plate and a second flange connecting plate, an oval long hole is formed in the first flange connecting plate and the second flange connecting plate, the beam transverse reinforcing rib comprises a first beam transverse reinforcing rib and a second beam transverse reinforcing rib, and the first beam transverse reinforcing rib and the second beam transverse reinforcing rib are welded to the inner surface of the steel frame beam. Coupling assembling's first side with the second side welding of steel frame post, coupling assembling's first longitudinal connecting plate and fourth longitudinal connecting plate respectively through first edge of a wing connecting plate and second edge of a wing connecting plate with the both sides face fixed connection of steel frame roof beam, the minor face of energy consumption damped L type upper junction plate stage by stage with first roof beam horizontal stiffening rib fixed connection, the damped book face of energy consumption stage by stage connecting plate down with coupling assembling's second longitudinal connecting plate fixed connection, the web connecting plate will through high strength bolt coupling assembling's middle part with the belly fixed connection of steel frame roof beam to resist the structure shear force, the first end of prestressing tendons with the middle part anchor of the first side of steel frame post is decided and is connected, the second end of prestressing tendons passes the second side of steel frame post with first roof beam horizontal stiffening rib with the middle part anchor fixed connection of second roof beam horizontal stiffening rib And (6) connecting.
Preferably, the staged energy dissipation dampers, the web connecting plate, the prestressed tendons and the beam transverse reinforcing ribs are symmetrically distributed about the connecting assembly and the middle of the steel frame beam, and the flange connecting plate and the staged energy dissipation dampers are symmetrically distributed about the prestressed tendons respectively.
Preferably, the oblong holes of the first longitudinal connecting plate and the oblong holes of the fourth longitudinal connecting plate are symmetrically distributed about the middle of the connecting assembly transverse connecting plate, and the round holes on the first beam transverse reinforcing rib are symmetrically distributed about the middle of the first beam transverse reinforcing rib.
Preferably, the first longitudinal connecting plate and the fourth longitudinal connecting plate are equal in size, the second longitudinal connecting plate and the third longitudinal connecting plate are equal in size and parallel to each other, and the first energy-consuming steel sheet and the second energy-consuming steel sheet are perpendicular to the space between the lower surface of the L-shaped upper connecting plate and the upper surface of the folded surface lower connecting plate.
Preferably, the sum of the number of the connecting assembly oval long holes and the number of the oval long holes on two sides of the steel frame beam is equal to the sum of the number of the first flange connecting plate oval long holes and the number of the second flange connecting plate oval long holes, and the sum of the number of the connecting assembly round holes and the number of the first beam transverse reinforcing rib round holes is twice the number of the staged energy dissipation damper round holes.
Preferably, the axle center of the connecting component oval long hole and the axle center collineation of the edge of a wing connecting plate oval long hole, the axle center of the steel frame roof beam oval long hole and the axle center collineation of the edge of a wing connecting plate oval long hole, the axle center of the L type upper junction plate round hole with the axle center collineation of the first roof beam horizontal reinforcing rib round hole, under the folded surface the axle center of the connecting plate round hole with the axle center collineation of the connecting component round hole.
Preferably, the number of the staged energy-consuming damper and the number of the beam transverse reinforcing ribs are four, and the number of the web connecting plate and the number of the prestressed tendons are two.
Preferably, the first energy dissipation steel sheet and the second energy dissipation steel sheet are made of steel with yield strength ranging from 100MPa to 225MPa, and the flange connecting plate and the web connecting plate are made of steel with yield strength not lower than 235 MPa.
Preferably, the connecting assembly longitudinal connecting plate, the flange connecting plate and the steel frame beam are connected, the connecting assembly longitudinal connecting plate, the staged energy dissipation damper and the connecting assembly transverse connecting plate between the first beam transverse reinforcing ribs and the web connecting plate and the steel frame beam are fixedly connected through high-strength bolts.
Compared with the prior art, the invention has the following advantages:
according to the self-resetting steel frame beam-column joint connecting device, the hidden type staged energy consumption damper is arranged, according to different yield displacements of the large and second energy consumption steel sheets, the small X-shaped soft steel sheet firstly yields and consumes energy under the action of small earthquake, and the large X-shaped soft steel sheet yields and consumes energy together with the small X-shaped soft steel sheet, so that staged energy consumption is realized; the prestressed tendons in the invention can not only meet the normal use, but also provide self-restoring force, and when an earthquake happens, the steel frame structure can recover the initial state; the energy-consuming type self-resetting steel frame joint method is convenient to connect, easy to construct, high in energy consumption and self-resetting capability and high in practical application value.
Drawings
FIG. 1 is a schematic structural view of a steel structure self-resetting beam-column joint connecting device of the invention;
FIG. 2 is a schematic elevation structure view of the steel structure self-resetting beam-column joint connection device of the present invention;
FIG. 3 is a schematic view of a connecting assembly structure of the steel structure self-resetting beam-column joint connecting device of the invention; and
fig. 4 is a schematic view of a staged energy dissipation damping structure of the steel structure self-resetting beam-column joint connection device.
The main reference numbers:
the steel frame column comprises a steel frame column 1, a steel frame beam 2, a connecting assembly 3, a transverse connecting plate 31, a first longitudinal connecting plate 32, a second longitudinal connecting plate 33, a third longitudinal connecting plate 34, a fourth longitudinal connecting plate 35, staged energy dissipation damping 4, an L-shaped upper connecting plate 41, a folded surface lower connecting plate 42, a first energy dissipation steel sheet 43, a second energy dissipation steel sheet 44, a flange connecting plate 5, a first flange connecting plate 51, a second flange connecting plate 52, a web connecting plate 6, a prestressed tendon 7, a beam transverse reinforcing rib 8, a first beam transverse reinforcing rib 81, a second beam transverse reinforcing rib 82 and a high-strength bolt 9.
Detailed Description
The technical contents, structural features, attained objects and effects of the present invention are explained in detail below with reference to the accompanying drawings.
A steel structure self-resetting beam-column joint connecting device is shown in figure 1 and comprises a steel frame column 1, a steel frame beam 2, a connecting assembly 3, a staged energy dissipation damper 4, a flange connecting plate 5, a web connecting plate 6, a prestressed rib 7 and a beam transverse reinforcing rib 8.
As shown in fig. 2, the steel frame column 1 and the steel frame beam 2 are both H-shaped steel, and both side surfaces of one end of the steel frame beam 2 are respectively provided with an elliptical long hole. As shown in fig. 3, the connecting assembly 3 includes a transverse connecting plate 31, a first longitudinal connecting plate 32, a second longitudinal connecting plate 33, a third longitudinal connecting plate 34 and a fourth longitudinal connecting plate 35, a first end of the transverse connecting plate 31 is welded to the first longitudinal connecting plate 32, a second end of the transverse connecting plate 31 is welded to the fourth longitudinal connecting plate 35, the second longitudinal connecting plate 33 and the third longitudinal connecting plate 34 are respectively welded to the middle of the transverse connecting plate 31, the first longitudinal connecting plate 32 and the fourth longitudinal connecting plate 35 are provided with oblong holes, and the second longitudinal connecting plate 33 and the third longitudinal connecting plate 34 are provided with round holes.
As shown in fig. 4, the staged energy consumption damper 4 comprises an L-shaped upper connecting plate 41, a folded lower connecting plate 42, a first energy consumption steel sheet 43 and a second energy consumption steel sheet 44, wherein the L-shaped upper connecting plate 41 is welded to the folded lower connecting plate 42 through the first energy consumption steel sheet 43 and the second energy consumption steel sheet 44, the first energy consumption steel sheet 43 is preferably a large X-shaped soft steel energy consumption steel sheet, and the second energy consumption steel sheet 44 is preferably a small X-shaped soft steel energy consumption steel sheet. And the flange connecting plate 5 comprises a first flange connecting plate 51 and a second flange connecting plate 52, and the first flange connecting plate 51 and the second flange connecting plate 52 are provided with oval long holes. And a beam cross stiffener 8 including a first beam cross stiffener 81 and a second beam cross stiffener 82, the first beam cross stiffener 81 and the second beam cross stiffener 82 being welded to the inner surface of the steel-frame beam 2.
As shown in fig. 1, a first side face of a connecting assembly 3 is welded with a second side face of a steel frame column 1, a first longitudinal connecting plate 32 and a fourth longitudinal connecting plate 35 of the connecting assembly 3 are fixedly connected with two side faces of the steel frame beam 2 through a first flange connecting plate 51 and a second flange connecting plate 52 respectively, a short side of an L-shaped upper connecting plate 41 of a staged energy-consuming damper 4 is fixedly connected with a first beam transverse reinforcing rib 81, a folded lower connecting plate 42 of the staged energy-consuming damper 4 is fixedly connected with a second longitudinal connecting plate 33 of the connecting assembly 3, a web connecting plate 6 fixedly connects a middle portion of a transverse connecting plate 31 of the connecting assembly 3 with an abdomen portion of the steel frame beam 2 through a high-strength bolt 9 to resist structural shear, a pre-stressed rib 7 is arranged along a long direction of the steel frame beam 2 to meet functional requirements under normal use conditions, a first end of the pre-stressed rib 7 is fixedly connected with a middle portion of the first side, the second end of the prestressed tendon 7 passes through the second side surface of the steel frame column 1 and the middle part of the first beam transverse reinforcing rib 81 and the second beam transverse reinforcing rib 82 to be fixedly connected.
As shown in fig. 2, the staged energy-consuming dampers 4, the web connecting plates 6, the prestressed tendons 7 and the beam transverse reinforcing ribs 8 are symmetrically distributed about the connecting assembly 3 and the middle of the steel frame beam 2. The staged energy dissipation dampers 4 are symmetrically arranged inside the connecting component 3 and the steel frame beam 2 to realize hiding, prestress is applied to the prestressed tendons 7 to enable the prestressed tendons and the connecting component 3 to be connected together, certain bending rigidity is provided for the structure, functional requirements under normal use are met, restoring force is provided, and the node has self-resetting capability after earthquake. The flange connecting plate 5 and the staged energy dissipation damper 4 are respectively and symmetrically distributed around the prestressed tendons 7.
The oblong holes of the first longitudinal connecting plate 32 and the oblong holes of the fourth longitudinal connecting plate 35 are symmetrically distributed about the middle of the transverse connecting plate 31 of the connecting assembly 3, and the circular holes on the first beam transverse reinforcement rib 81 are symmetrically distributed about the middle of the first beam transverse reinforcement rib 81.
As shown in fig. 3, the first longitudinal connecting plate 32 and the fourth longitudinal connecting plate 35 are equal in size, the second longitudinal connecting plate 33 and the third longitudinal connecting plate 34 are equal in size and parallel to each other, as shown in fig. 4, the first energy dissipating steel sheet 43 and the second energy dissipating steel sheet 44 are perpendicular to the lower surface of the L-shaped upper connecting plate 41 and the upper surface of the folding lower connecting plate 42, and the first energy dissipating steel sheet 43 and the second energy dissipating steel sheet 44 yield and dissipate energy in stages under different loads.
The sum of the number of the oval long holes of the connecting assembly 3 and the number of the oval long holes on two sides of the steel frame beam 2 is equal to the sum of the number of the oval long holes of the first flange connecting plate 51 and the number of the oval long holes of the second flange connecting plate 52, and the sum of the number of the round holes of the connecting assembly 3 and the number of the round holes of the transverse reinforcing ribs 81 of the first beam is twice of the number of the round holes of the staged energy dissipation damper 4.
The axis of the oval long hole of the connecting component 3 is collinear with the axis of the oval long hole of the flange connecting plate 5, the axis of the oval long hole of the steel frame beam 2 is collinear with the axis of the oval long hole of the flange connecting plate 5, the axis of the round hole of the L-shaped upper connecting plate 41 is collinear with the axis of the round hole of the first beam transverse reinforcing rib 81, and the axis of the round hole of the folding surface lower connecting plate 42 is collinear with the axis of the round hole of the connecting component 3.
The number of the staged energy-consumption dampers 4 and the number of the beam transverse reinforcing ribs 8 are four respectively, and the number of the web connecting plates 6 and the number of the prestressed tendons 7 are two respectively.
The first energy dissipation steel sheet 43 and the second energy dissipation steel sheet 44 are made of steel with the yield strength range of 100MPa-225MPa, and the flange connecting plate 5 and the web connecting plate 6 are made of steel with the yield strength not lower than 235 MPa.
The longitudinal connecting plate of the connecting assembly 3, the connection of the flange connecting plate 5 and the steel frame beam 2, the longitudinal connecting plate of the connecting assembly 3, the connection of the staged energy-consuming damper 4 and the first beam transverse reinforcing rib 81, and the connection of the transverse connecting plate 31 of the connecting assembly 3, the web connecting plate 6 and the steel frame beam 2 are fixedly connected by high-strength bolts 9.
The steel structure self-resetting beam-column joint connecting device is further described by combining the following embodiments:
as shown in fig. 1 and 2, the steel structure self-resetting beam-column joint connecting device of the invention is generally applied to the joint of a steel frame column 1 and a steel frame beam 2, and mainly comprises a connecting assembly 3, a staged energy dissipation damper 4, a flange connecting plate 5, a web connecting plate 6, a prestressed tendon 7 and a beam transverse reinforcing rib 8.
In order to achieve a corresponding objective of the device, it is of primary importance that the structure of the device is correctly assembled. Firstly, welding a first side face of a connecting assembly 3 and a second side face of a steel frame column 1, respectively connecting a first longitudinal connecting plate 32 and a fourth longitudinal connecting plate 35 of the connecting assembly 3 with two side faces of a steel frame beam 2 through a first flange connecting plate 51 and a second flange connecting plate 52, and fixing the two side faces by using high-strength bolts 9, wherein the high-strength bolts 9 are symmetrically arranged, and the flange connecting plates 5 are provided with elliptical long holes to allow the steel frame beam 2 to relatively rotate under the action of an earthquake;
then, the short side of the L-shaped upper connecting plate 41 of the staged energy-consumption damper 4 is connected with the first beam transverse reinforcing rib 81 and fixed by the high-strength bolt 9, the folding surface lower connecting plate 42 of the staged energy-consumption damper 4 is connected with the second longitudinal connecting plate 33 of the connecting assembly 3 and fixed by the high- strength bolt 9, 4 staged energy-consumption dampers 4 are arranged on a node device in total, the web connecting plate 6, the prestressed ribs 7 and the beam transverse reinforcing ribs 8 are symmetrically arranged about the middle parts of the connecting assembly 3 and the steel frame beam 2 by adopting up-down and left-right symmetrical arrangement and simultaneously realizing the hiding purpose;
finally, fixedly connecting the middle part of the transverse connecting plate 31 of the connecting component 3 with the belly part of the steel frame beam 2 through a web connecting plate 6 by a high-strength bolt 9 so as to resist structural shear; then, the prestressed tendon 7 is arranged along the length direction of the steel frame beam 2 to meet the functional requirement under the normal use condition, the first end of the prestressed tendon 7 is in anchoring connection with the middle of the first side surface of the steel frame column 1, and the second end of the prestressed tendon 7 passes through the second side surface of the steel frame column 1 and the middle of the first beam transverse reinforcing rib 81 and the second beam transverse reinforcing rib 82 to be in anchoring connection to meet the functional requirement under the normal use condition, and simultaneously provides restoring force, so that the node device has the self-resetting capability after the earthquake.
When the structure of the invention is normally used, the web connecting plate 6 between the steel frame beam 2 and the connecting assembly 3 bears main shearing force, and the first flange connecting plate 51, the second flange connecting plate 52 and the prestressed tendons 7 bear the bending moment of the device of the invention together; under the action of small vibration, the second energy-consuming steel sheet 44 yields firstly to consume energy, and under the action of large vibration, the first energy-consuming steel sheet 43 yields and consumes energy together with the second energy-consuming steel sheet 44; meanwhile, the prestressed tendons 7 provide restoring force, so that the node device has the function of realizing self-resetting after the earthquake.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.
Claims (9)
1. A steel structure self-resetting beam-column joint connecting device comprises a steel frame column, a steel frame beam, a connecting assembly, a staged energy dissipation damper, a flange connecting plate, a web connecting plate, a prestressed tendon and a beam transverse reinforcing rib,
the steel frame column and the steel frame beam are both H-shaped steel, and two side faces of one end of the steel frame beam are respectively provided with an oval long hole;
the connecting assembly comprises a transverse connecting plate, a first longitudinal connecting plate, a second longitudinal connecting plate, a third longitudinal connecting plate and a fourth longitudinal connecting plate, wherein the first end of the transverse connecting plate is welded with the first longitudinal connecting plate, the second end of the transverse connecting plate is welded with the fourth longitudinal connecting plate, the second longitudinal connecting plate and the third longitudinal connecting plate are respectively welded in the middle of the transverse connecting plate, the first longitudinal connecting plate and the fourth longitudinal connecting plate are provided with oblong holes, and the second longitudinal connecting plate and the third longitudinal connecting plate are provided with round holes;
the staged energy consumption damping comprises an L-shaped upper connecting plate, a folded surface lower connecting plate, a first energy consumption steel sheet and a second energy consumption steel sheet, wherein the L-shaped upper connecting plate is welded with the folded surface lower connecting plate through the first energy consumption steel sheet and the second energy consumption steel sheet respectively;
the flange connecting plate comprises a first flange connecting plate and a second flange connecting plate, the first flange connecting plate and the second flange connecting plate are provided with elliptical long holes,
the beam transverse reinforcing ribs comprise a first beam transverse reinforcing rib and a second beam transverse reinforcing rib, and the first beam transverse reinforcing rib and the second beam transverse reinforcing rib are welded on the inner surface of the steel frame beam; and
coupling assembling's first side with the second side welding of steel frame post, coupling assembling's first longitudinal connecting plate and fourth longitudinal connecting plate respectively through first edge of a wing connecting plate and second edge of a wing connecting plate with the both sides face fixed connection of steel frame roof beam, the minor face of energy consumption damped L type upper junction plate stage by stage with first roof beam horizontal stiffening rib fixed connection, the damped book face of energy consumption stage by stage connecting plate down with coupling assembling's second longitudinal connecting plate fixed connection, the web connecting plate will through high strength bolt coupling assembling's middle part with the belly fixed connection of steel frame roof beam to resist the structure shear force, the first end of prestressing tendons with the middle part anchor of the first side of steel frame post is decided and is connected, the second end of prestressing tendons passes the second side of steel frame post with first roof beam horizontal stiffening rib with the middle part anchor fixed connection of second roof beam horizontal stiffening rib And (6) connecting.
2. The steel structure self-resetting beam-column joint connection device of claim 1, wherein the staged energy dissipation dampers, the web connection plate, the tendons, and the beam transverse reinforcing ribs are symmetrically distributed about the connection assembly and the middle portion of the steel frame beam, and the flange connection plate and the staged energy dissipation dampers are symmetrically distributed about the tendons, respectively.
3. The steel structure self-resetting beam-column joint connection device of claim 1, wherein the oblong holes of the first longitudinal connecting plate and the oblong holes of the fourth longitudinal connecting plate are symmetrically distributed about the middle of the connecting assembly transverse connecting plate, and the round holes on the first beam transverse reinforcing rib are symmetrically distributed about the middle of the first beam transverse reinforcing rib.
4. The steel structure self-resetting beam-column joint connecting device as claimed in claim 1, wherein the first longitudinal connecting plate and the fourth longitudinal connecting plate are equal in size, the second longitudinal connecting plate and the third longitudinal connecting plate are equal in size and parallel to each other, and the first energy dissipating steel sheet and the second energy dissipating steel sheet are perpendicular to the space between the lower surface of the L-shaped upper connecting plate and the upper surface of the folded surface lower connecting plate.
5. The steel structure self-resetting beam-column joint connection device of claim 3, wherein the sum of the number of the connecting assembly oval long holes and the number of the steel frame beam two-side oval long holes is equal to the sum of the number of the first flange connecting plate oval long holes and the number of the second flange connecting plate oval long holes, and the sum of the number of the connecting assembly round holes and the number of the first beam transverse reinforcing rib round holes is twice the number of the staged energy dissipation damper round holes.
6. The steel structure self-resetting beam-column joint connection device of claim 5, wherein the axis of the connecting assembly oval slot hole and the axis of the flange connecting plate oval slot hole are collinear, the axis of the steel frame beam oval slot hole and the axis of the flange connecting plate oval slot hole are collinear, the axis of the L-shaped upper connecting plate round hole and the axis of the first beam transverse reinforcing rib round hole are collinear, and the axis of the folding surface lower connecting plate round hole and the axis of the connecting assembly round hole are collinear.
7. The steel structure self-resetting beam-column joint connecting device as claimed in claim 2, wherein the number of the staged energy-consuming dampers and the number of the beam transverse reinforcing ribs are four respectively, and the number of the web connecting plates and the number of the prestressed tendons are two respectively.
8. The steel structure self-resetting beam-column joint connecting device as claimed in claim 1, wherein the first energy dissipating steel sheet and the second energy dissipating steel sheet are made of steel with yield strength ranging from 100MPa to 225MPa, and the flange connecting plate and the web connecting plate are made of steel with yield strength not lower than 235 MPa.
9. The steel structure self-resetting beam-column joint connecting device of claim 1, wherein the longitudinal connecting plates of the connecting assembly, the connection of the flange connecting plates and the steel frame beams, the longitudinal connecting plates of the connecting assembly, the staged energy dissipation damper and the first beam transverse reinforcing rib, and the transverse connecting plates of the connecting assembly, the web connecting plates and the steel frame beams are fixedly connected by high-strength bolts.
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| CN111719816A (en) * | 2020-05-25 | 2020-09-29 | 杭州西奥电梯有限公司 | Elevator shaft with compact steel structure |
| CN111779148B (en) * | 2020-06-29 | 2021-07-13 | 东南大学 | Variable-rigidity damping device with embedded connecting beam and working method of variable-rigidity damping device |
| CN112854478B (en) * | 2021-01-14 | 2022-02-08 | 宿迁学院 | Energy-consuming and shock-absorbing beam-column node structure for prefabricated building |
| CN112982144B (en) * | 2021-03-17 | 2023-05-23 | 黄河水利职业技术学院 | H-shaped steel structure with wide web plate |
| CN113502917B (en) * | 2021-06-16 | 2022-05-17 | 燕山大学 | Spring type self-resetting beam column node |
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| CN201068603Y (en) * | 2007-07-31 | 2008-06-04 | 北京工业大学 | Joist end weakened replaced type steel frame beam-column anti-knock joint |
| CN203096950U (en) * | 2013-02-27 | 2013-07-31 | 同济大学 | Automatic reset frame beam column node |
| JP6328430B2 (en) * | 2014-01-08 | 2018-05-23 | 国立大学法人京都大学 | Buckling brace |
| US10253837B2 (en) * | 2014-08-09 | 2019-04-09 | Structural Fuse, LLC | Sacrificial energy dissipation mechanism |
| CN106522382B (en) * | 2016-11-10 | 2022-04-19 | 西安建筑科技大学 | Self-resetting energy-consumption connecting node of assembled concrete filled steel tubular column and H-shaped steel beam |
| CN206298955U (en) * | 2016-12-12 | 2017-07-04 | 福州大学 | Unilateral formula precast prestressed concrete frame is from rehabilitation energy dissipation node |
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Effective date of registration: 20240228 Address after: 064400 South side of Qianxu Road, Qian'an High tech Industrial Development Zone, Tangshan City, Hebei Province, north side of Qifeng Street Patentee after: Hebei Zhonglong Xinye Steel Structure Engineering Co.,Ltd. Guo jiahuodiqu after: Zhong Guo Address before: 066004 No. 438 west section of Hebei Avenue, seaport District, Hebei, Qinhuangdao Patentee before: Yanshan University Guo jiahuodiqu before: Zhong Guo |