CN108222250B - Novel assembled power consumption steel frame - Google Patents
Novel assembled power consumption steel frame Download PDFInfo
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- CN108222250B CN108222250B CN201810122587.1A CN201810122587A CN108222250B CN 108222250 B CN108222250 B CN 108222250B CN 201810122587 A CN201810122587 A CN 201810122587A CN 108222250 B CN108222250 B CN 108222250B
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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
- E04B1/19—Three-dimensional framework structures
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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
- 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
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention provides a novel assembled energy-consumption steel frame which comprises a column, a long beam section, a short beam section and an energy-consumption section. The energy consumption section is connected with the long beam section and the short beam section through the bolt group so as to realize the assemblability of the steel frame. The energy consumption section comprises a flange connector and a web connector, and the steel plates of the connectors yield to dissipate energy under the action of an earthquake. The outer part of the flange connecting piece is provided with a rectangular steel pipe so as to restrict the out-of-plane deformation of the flange connecting piece, so that the whole structure has stable bearing capacity and excellent energy consumption capacity. The two ends of the backing plate of the flange connecting piece are provided with the shearing resistant devices, so that the flange connecting piece can be prevented from sliding, and the energy consumption performance of the energy consumption section is ensured. Under the action of earthquake, the main structure of the invention always keeps elasticity, the plastic deformation is controlled at the energy consumption section, and the repair of the structure can be completed by replacing the energy consumption section after earthquake. The invention provides an assembled steel frame with excellent energy consumption capability and stable bearing capacity, and the assembled steel frame can be quickly repaired after earthquake.
Description
Technical Field
The invention belongs to the technical field of structural engineering earthquake resistance, and relates to a novel assembled energy-consumption steel frame.
Background
In order to exert the characteristics of good ductility, strong deformation and strong energy consumption capability of the steel structure, the steel frame generally takes a strong column and weak beam as a design principle, and plastic hinges are generated at the beam ends under the action of an earthquake, so that a first defense line of the structure is formed to realize ductile failure. However, in the north american mountain earthquake of 1994 and the japanese sakagu earthquake of 1995, the steel frame beam ends did not exhibit the expected plastic hinges, but rather a large amount of brittle failure occurred at the beam-column joints. Thereafter, to avoid brittle failure of the structure, the designer provides a weakened area at the beam end, where the deformation is concentrated to form a plastic hinge. Although the weakening type node can effectively prevent the brittle failure of the steel frame, when the lateral movement of the structure is larger, the bearing capacity of the structure is greatly reduced, the energy consumption capacity is very limited, and the structure is difficult to repair after an earthquake. To increase the energy consumption capability of the steel frame and to improve the repair problem after the frame is vibrated, designers replace the weakened area of Liang Duanjian with energy consuming devices. However, the steel frame provided with the energy consumption device still has the following disadvantages: (1) the traditional energy consumption device has limited energy consumption capability, so that the energy consumption performance of the steel frame is lower, and the bearing capacity is reduced when the steel frame is moved to a larger side; (2) the energy consumption device is arranged on the flange and bears great horizontal force, so that the bolt connection part of the energy consumption device slides, and the energy consumption performance of the energy consumption device is reduced; (3) the setting mode of the energy consumption device increases the difficulty of repairing the structure after the earthquake, and the quick repairing after the earthquake is difficult to realize.
The technical defects not only reduce the bearing capacity and the energy consumption capacity of the frame, but also bring great difficulty to the rapid repair of the whole building after earthquake.
Disclosure of Invention
The invention aims to solve the problems of the traditional assembled steel frame with the weakened type nodes, and provides a novel assembled energy-consuming steel frame which has stable bearing capacity and good energy-consuming capacity and can be quickly repaired after earthquake.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the novel assembled energy-consumption steel frame comprises a column 1, a long beam section 2, a short beam section 3 and an energy-consumption section; the column 1 is welded with the short beam section 3, and the long beam section 2 and the short beam section 3 are connected through energy consumption section bolts so as to realize the assemblability of the steel frame.
The energy consumption section comprises two sets of flange connectors and two web connecting plates 4. The upper flanges and the lower flanges of the long beam end and the short beam end are respectively provided with a set of flange connectors, and each set of flange connectors is connected with the flange of the long beam section 2 and the flange of the short beam section 3 through bolt groups. Two sides of the long beam end and the short beam end are respectively provided with a web connecting plate 4, and each web connecting plate 4 is connected with the web of the long beam section 2 and the web of the short beam section 3 through bolt groups.
The flange connecting piece comprises two backing plates 5, an energy consumption plate 6, a set of rectangular steel pipes 7 and two sets of shearing devices.
The cross section of the base plate 5 is rectangular, the thickness along the length direction is unchanged, the base plate 5 sequentially comprises a base plate wide section, a base plate narrow section and a base plate gradual change section along the length direction according to the change of the cross section width, the base plate wide section and the base plate narrow section are in arc transition, the width of the base plate gradual change section is gradually reduced, and the ratio of the width reduction value of the base plate gradual change section to the corresponding length is larger than 1:2.
The cross section of the energy consumption plate 6 is rectangular, the thickness is unchanged along the length direction, and the energy consumption plate width section, the energy consumption plate sub-width section, the energy consumption plate narrow section, the energy consumption plate sub-width section and the energy consumption plate width section are sequentially arranged along the length direction according to the change of the width of the cross section; the energy-consumption plate wide section and the energy-consumption plate sub-wide section are in arc transition, and a convex part is arranged in the middle of the energy-consumption plate narrow section; the length direction of the protruding part is an arc section, a horizontal section and an arc section respectively, the length of the protruding part accounts for 1/50 of the length of the narrow section of the energy consumption plate, and the width of the protruding part protruding out of the narrow section of the energy consumption plate is 10mm.
The width section of the energy consumption plate is 20mm wider than the width section of the backing plate and 20mm longer; the length of the energy consumption section secondary wide section is 20mm longer than the sum of the lengths of the pad narrow section and the pad gradual change section; the center of the energy consumption plate wide section corresponds to the center of the backing plate wide section and is in welded connection with the center of the backing plate wide section, and the energy consumption plate sub-wide section is welded with the backing plate narrow section and the backing plate gradual change section.
The rectangular steel pipe 7 is formed by assembling four steel plates through bolts; four steel plates are arranged into three layers, and the first layer is a complete rectangular steel plate; the second layer is composed of two steel plates, two sides of the first steel plate are arranged in a separated mode, the steel plates of the second layer are sequentially composed of a steel plate narrow section, a steel plate arc transition section, a steel plate wide section, a steel plate arc transition section and a steel plate narrow section according to width change along the length direction, a groove is formed in the middle of the steel plate wide section to be matched with a protruding part of the energy dissipation plate 6, and a space is reserved for deformation of the protruding part; the third layer is a rectangular steel plate with rectangular grooves at two ends, the width of the rectangular grooves is 20mm wider than the width of the narrow sections of the backing plates, and the length of the rectangular grooves is determined by the axial deformation of the energy consumption plate 6, the length of the narrow sections of the backing plates and the length of the gradual change sections of the backing plates.
The rectangular steel pipe 7 surrounds the energy dissipation plate 6, a gap is reserved between the energy dissipation plate 6 and the rectangular outer sleeve in the transverse direction and the vertical direction, the transverse gap is the poisson effect for releasing the energy dissipation plate 6, the vertical gap is determined by the shearing deformation of the energy dissipation plate 6, and the length of the rectangular steel pipe 7 is determined by the longitudinal deformation of the energy dissipation plate 6 and the length of the narrow section of the energy dissipation plate.
The shear device comprises a pressing device and a shear key 11. The extrusion device and the shear key 11 are respectively arranged at two ends of the same backing plate wide section. The extrusion device comprises a fixed steel bar 8, a friction steel bar 9, a fixed steel plate 10 and bolts. The sections of the fixed steel bars 8 and the friction steel bars 9 are right trapezoid, the slopes of the inclined planes are the same, and the lengths of the inclined planes are the same as the widths of the flanges of the beams. The fixed steel plate 10 is provided with a bolt hole, the fixed steel plate 10 is welded at the upper end of the friction steel bar 9, and the bolt can pass through the bolt hole to apply pressure to the friction steel block. The fixed steel bar 8 is welded on the flange of the beam, the inclined plane of the friction steel bar 9 is in extrusion contact with the inclined plane of the fixed steel bar 8, and the vertical surface of the friction steel bar 9 is in extrusion contact with the end part of the backing plate wide section. The shear key 11 consists of two cuboid steel blocks welded to the flanges of the beam.
The energy consumption section comprises a flange connector and a web connector, and the steel plate of the connector yields to dissipate energy under the action of an earthquake. The outer part of the flange connecting piece is provided with a rectangular steel pipe so as to restrict the out-of-plane deformation of the flange connecting piece, so that the whole structure has stable bearing capacity and excellent energy consumption capacity. The two ends of the backing plate of the flange connecting piece are provided with the shearing resistant devices, so that the flange connecting piece can be prevented from sliding, and the energy consumption performance of the energy consumption section is ensured.
The beneficial effects of the invention are as follows: under earthquake, the plastic deformation of the frame can be controlled on the energy consumption section, so that the main components (the column, the long beam section and the short beam section) of the structure are kept elastic all the time, the energy consumption effect is good, and the strength is not obviously reduced. When repairing after earthquake, the structure can be recovered to be used only by replacing the energy consumption section. The invention is applicable to frame structure systems.
Drawings
FIG. 1 is a schematic installation view of an embodiment of the present invention;
FIG. 2 is a schematic view of the installation of a backing plate and an energy dissipating plate in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of the installation of an energy dissipating plate and rectangular steel pipes according to an embodiment of the present invention;
FIG. 4 is a schematic view of a web connection plate according to an embodiment of the present invention; (a) is a front view of the web connecting plate, (b) is a left view of the web connecting plate, and (c) is a top view of the web connecting plate.
FIG. 5 is a schematic view of a shim plate according to an embodiment of the present invention; (a) is a front view of the pad, (b) is a left side view of the pad, and (c) is a top view of the pad.
FIG. 6 is a schematic diagram of an energy dissipating plate according to an embodiment of the present invention; (a) is a front view of the energy consumption plate, (b) is a left view of the energy consumption plate, and (c) is a top view of the energy consumption plate.
FIG. 7 is an assembly schematic of a rectangular steel pipe according to an embodiment of the present invention; (a) is a front view of a rectangular steel pipe, (b) is a left view of the rectangular steel pipe, (c) is a top view of the rectangular steel pipe, (d) is a steel plate constituting a first layer of the rectangular steel pipe, (e) is a steel plate constituting a second layer of the rectangular steel pipe, and (f) is a steel plate constituting a third layer of the rectangular steel pipe.
FIG. 8 is an assembled schematic view of a shear device according to an embodiment of the present invention; (a) is a flange connector assembly schematic view, (b) is a front view of a shear key, (c) is a top view of a shear key, (d) is a front view of a fixing steel bar, (e) is a top view of a fixing steel bar, (f) is a front view of a friction steel bar, (g) is a top view of a friction steel bar, (h) is a front view of a fixing steel plate, and (i) is a top view of a fixing steel plate.
In the figure: 1 column, 2 long beam section, 3 short beam section, 4 web connecting plate, 5 backing plate, 6 power consumption board, 7 rectangular steel pipe, 8 fixed steel bar, 9 friction steel bar, 10 fixed steel plate, 11 shear key.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the present invention will be clearly and completely described below, and it is obvious that the described embodiment is one embodiment of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is an installation schematic of the present embodiment. The example comprises a short beam section 3, a long beam section 2, a web connecting plate 4, a backing plate 5, an energy consumption plate 6, rectangular steel pipes 7, a shearing device, a column 1, node stiffening ribs and friction type high-strength bolts. When the steel pipe is assembled, the rectangular steel pipe 7 is arranged on the energy dissipation plate 6, the two ends of the energy dissipation plate 6 are respectively welded with the backing plates 5, the upper flange and the lower flange of the long beam section 2 and the short beam section 3 are symmetrically arranged as a whole, and the upper flange and the lower flange are respectively connected to the flanges of the long beam section 2 and the short beam section 3 through friction type high-strength bolt groups. The web connecting plates 4 are symmetrically arranged on two sides of the webs of the long beam section 2 and the short beam section 3 respectively and are connected to the webs of the long beam section 2 and the short beam section 3 through friction type high-strength bolt groups.
Fig. 2 is a schematic view of the installation of the backing plate 5 and the energy dissipating plate 6 according to an embodiment of the present invention. The center of the energy consumption plate wide section corresponds to the center of the backing plate wide section and is in welded connection with the center of the backing plate wide section, and the energy consumption plate sub-wide section is welded with the backing plate narrow section and the backing plate gradual change section. The backing plate 5 reserves space for shear deformation of the energy dissipation plate 6 and rotation of the rectangular steel pipe 7.
Fig. 3 is a schematic installation view of the energy consumption plate 6 and the rectangular steel pipe 7 according to the embodiment of the present invention. The rectangular steel pipe 7 surrounds the energy dissipation plate 6, a gap is reserved between the energy dissipation plate 6 and the rectangular jacket in the transverse direction and the vertical direction, the gap is determined by the vertical deformation of the energy dissipation plate 6, and the length of the rectangular steel pipe 7 is determined by the longitudinal deformation of the energy dissipation plate 6 and the length of the narrow section of the energy dissipation plate. The rectangular steel pipe 7 plays a constraint role on the energy consumption plate 6, so that the bearing capacity and the energy consumption capacity of the frame can be improved, and the bearing capacity is more stable.
Fig. 4 is a schematic view of a backing plate 5 according to an embodiment of the present invention. The cross section of the base plate 5 is rectangular, the thickness along the length direction is unchanged, the base plate 5 sequentially comprises a base plate wide section, a base plate narrow section and a base plate gradual change section along the length direction according to the change of the cross section width, the base plate wide section and the base plate narrow section are in arc transition, the width of the base plate gradual change section is gradually reduced, and the ratio of the width reduction value of the base plate gradual change section to the corresponding length is larger than 1:2.
Fig. 5 is a schematic view of an energy dissipating plate 6 according to an embodiment of the present invention. The cross section of the energy consumption plate 6 is rectangular, the thickness is unchanged along the length direction, and the energy consumption plate width section, the energy consumption plate sub-width section, the energy consumption plate narrow section, the energy consumption plate sub-width section and the energy consumption plate width section are sequentially arranged along the length direction according to the change of the width of the cross section; the energy-consumption plate wide section and the energy-consumption plate sub-wide section are in arc transition, and a convex part is arranged in the middle of the energy-consumption plate narrow section. The length direction of the protruding part is respectively an arc section, a horizontal section and an arc section; the length of the protruding part accounts for 1/50 of the length of the narrow section of the energy consumption plate, and the width of the protruding part protruding out of the narrow section of the energy consumption plate is 10mm. The cross section area of the narrow section of the energy consumption plate is determined by the bearing capacity requirement, and the plastic deformation can be intensively controlled in the energy consumption section through calculation, so that the rest components are ensured to be kept in the elastic range.
Fig. 6 is a schematic view of a rectangular steel pipe 7 according to an embodiment of the present invention. The rectangular steel pipe 7 is formed by assembling four steel plates through bolts; four steel plates are arranged into three layers, and the first layer is a complete rectangular steel plate; the second layer is composed of two steel plates, two sides of the first steel plate are arranged in a separated mode, the steel plates of the second layer are sequentially a steel plate narrow section, a steel plate arc transition section, a steel plate wide section, a steel plate arc transition section and a steel plate narrow section along the length direction according to the width change, a groove is formed in the middle of the steel plate wide section to be matched with a protruding part of the energy dissipation plate 6, and a space is reserved for deformation of the protruding part; the third layer is a rectangular steel plate with rectangular grooves at two ends, the width of the rectangular grooves is 20mm wider than the width of the narrow sections of the backing plates, and the length of the rectangular grooves is determined by the axial deformation of the energy consumption plate 6, the length of the narrow sections of the backing plates and the length of the gradual change sections of the backing plates. The outer sleeve is always in an elastic stage under an earthquake, and can be reused when the energy consumption section is replaced after the earthquake.
Fig. 7 is a schematic view of a shear device according to an embodiment of the present invention. The shear device consists of a pressing device and a shear key 11. The extrusion device and the shear key 11 are respectively arranged at two ends of the same backing plate wide section. The extrusion device consists of four parts: a fixed steel bar 8, a friction steel bar 9, a fixed steel plate 10 and 3-5 bolts. The sections of the fixed steel bars 8 and the friction steel bars 9 are right trapezoid, the slopes of the inclined planes are the same, and the lengths of the inclined planes are the same as the widths of the flanges of the beams. The fixed steel plate 10 is a rectangular plate, and 3-5 bolt holes are formed in the fixed steel plate 10. The fixed steel plate 10 is welded on the upper end of the friction steel bar 9, and the bolts can pass through the fixed steel plate 10 to apply pressure to the friction steel block. The fixed steel bar 8 is welded on the flange of the beam, the inclined plane of the friction steel bar 9 is in extrusion contact with the inclined plane of the fixed steel bar 8, and the vertical surface of the friction steel bar 9 is in extrusion contact with the end part of the backing plate wide section. The shear key 11 consists of two cuboid steel blocks welded to the flanges of the beam.
This embodiment is generally applicable to a frame structure system. Under earthquake, the plastic deformation of the frame can be controlled on the energy consumption section, so that the main components of the structure are kept elastic, the energy consumption effect is good, and the strength is not obviously reduced. When repairing after earthquake, the structure can be recovered to be used only by replacing the energy consumption section.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The assembled energy-consumption steel frame is characterized by comprising a column (1), a long beam section (2), a short beam section (3) and an energy-consumption section; the column (1) is welded with the short beam section (3), and the long beam section (2) is connected with the short beam section (3) through an energy consumption section bolt;
the energy consumption section comprises two sets of flange connectors and two web connecting plates (4); the flange connecting piece is connected with the flange of the long beam section (2) and the flange of the short beam section (3) through the bolt group, and the web connecting plate (4) is connected with the web of the long beam section (2) and the web of the short beam section (3) through the bolt group;
the flange connecting piece comprises two backing plates (5), an energy consumption plate (6), a set of rectangular steel pipes (7) and two sets of shearing resistant devices;
the cross section of the base plate (5) is rectangular, the thickness along the length direction is unchanged, the base plate (5) sequentially comprises a base plate wide section, a base plate narrow section and a base plate gradual change section along the length direction according to the change of the cross section width, the base plate wide section and the base plate narrow section are in arc transition, and the width of the base plate gradual change section is gradually reduced; the cross section of the energy consumption plate (6) is rectangular, the thickness is unchanged along the length direction, and the energy consumption plate width section, the energy consumption plate sub-width section, the energy consumption plate narrow section, the energy consumption plate sub-width section and the energy consumption plate width section are sequentially arranged along the length direction according to the change of the width of the cross section; the energy-consumption plate wide section and the energy-consumption plate sub-wide section and the energy-consumption plate narrow section are in arc transition, a protruding part is arranged in the middle of the energy-consumption plate narrow section, and the length direction of the protruding part is respectively an arc section, a horizontal section and an arc section; the center of the energy consumption plate wide section corresponds to the center of the backing plate wide section and is welded with the center of the backing plate wide section, and the energy consumption plate sub-wide section is welded with the backing plate narrow section and the backing plate gradual change section; the rectangular steel pipe (7) is formed by assembling four steel plates; four steel plates are arranged into three layers, and the first layer is a complete rectangular steel plate; the second layer is composed of two steel plates, two sides of the first steel plate are arranged in a separated mode, the steel plates of the second layer are sequentially a steel plate narrow section, a steel plate arc transition section, a steel plate wide section, a steel plate arc transition section and a steel plate narrow section along the length direction according to the width change, a groove is formed in the middle of the steel plate wide section to be matched with a protruding part of the energy dissipation plate (6), and a space is reserved for deformation of the protruding part; the third layer is a rectangular steel plate with rectangular grooves at two ends; the rectangular steel pipe (7) surrounds the energy dissipation plate (6), and a gap is arranged between the energy dissipation plate (6) and the rectangular jacket in the transverse direction and the vertical direction; the shearing device comprises an extrusion device and a shear key (11), which are respectively arranged at two ends of the same backing plate wide section;
the extrusion device comprises a fixed steel bar (8), a friction steel bar (9), a fixed steel plate (10) and bolts; the sections of the fixed steel bar (8) and the friction steel bar (9) are right trapezoid, the slopes of the inclined planes are the same, and the lengths of the inclined planes are the same as the widths of the flanges of the beams; the fixed steel plate (10) is provided with a bolt hole, the bolt hole is welded at the upper end of the friction steel bar (9), and the bolt passes through the bolt hole to apply pressure to the friction steel block; the fixed steel bar (8) is welded on the flange of the beam, the inclined plane of the friction steel bar (9) is in extrusion contact with the inclined plane of the fixed steel bar (8), and the vertical surface of the friction steel bar (9) is in extrusion contact with the end part of the backing plate wide section; the shear key (11) consists of two cuboid steel blocks which are welded on the flanges of the beam.
2. A fabricated dissipative steel frame according to claim 1, wherein the length of the rectangular steel tube (7) is determined by the longitudinal deformation of the dissipative plate (6) and the length of the dissipative plate narrow section; the width of the rectangular groove of the third layer of rectangular steel plate of the rectangular steel pipe (7) is 20mm wider than the width of the narrow section of the backing plate, and the length of the rectangular groove is determined by the axial deformation of the energy consumption plate (6), the length of the narrow section of the backing plate and the length of the gradual change section of the backing plate.
3. A fabricated dissipative steel frame according to claim 1 or 2, characterized in that the protruding part of the dissipative plate (6) has a length of 1/50 of the length of the narrow section of the dissipative plate, the protruding part protruding the width of the narrow section of the dissipative plate being 10mm.
4. An assembled energy dissipating steel frame according to claim 1 or 2, wherein the energy dissipating plate width section is 20mm wider and 20mm longer than the plate width section; the length of the energy consumption section sub-wide section is 20mm longer than the sum of the lengths of the pad narrow section and the pad gradual change section.
5. A fabricated energy dissipating steel frame according to claim 3, wherein the energy dissipating plate width is 20mm wider and 20mm longer than the backing plate width; the length of the energy consumption section sub-wide section is 20mm longer than the sum of the lengths of the pad narrow section and the pad gradual change section.
6. An assembled energy dissipating steel frame according to claim 1, 2 or 5, characterized in that the ratio of the width reduction of the pad transition of the pad (5) to its corresponding length is greater than 1:2.
7. The assembled energy-consuming steel frame according to claim 4, wherein the ratio of the reduced width of the pad transition of the pad (5) to the corresponding length is greater than 1:2.
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| CN201810122587.1A CN108222250B (en) | 2018-02-07 | 2018-02-07 | Novel assembled power consumption steel frame |
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| CN201810122587.1A CN108222250B (en) | 2018-02-07 | 2018-02-07 | Novel assembled power consumption steel frame |
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| CN108222250B true CN108222250B (en) | 2023-06-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109209012B (en) * | 2018-10-09 | 2023-12-26 | 江阴建禾钢品有限公司 | Novel steel structure for construction site |
| CN109610666A (en) * | 2018-12-13 | 2019-04-12 | 大连理工大学 | A kind of double energy dissipating mechanism systems |
| CN110080411B (en) * | 2019-06-06 | 2021-06-01 | 上海中测行工程检测咨询有限公司 | Method and device for resisting seismic energy consumption of key part of frame structure |
| CN112360515A (en) * | 2020-11-25 | 2021-02-12 | 国家电网有限公司 | Support steel frame with energy dissipation structure |
| CN113445799A (en) * | 2021-06-17 | 2021-09-28 | 北京建筑大学 | Core column type double-flange self-resetting beam column connecting node structure |
| CN114876063A (en) * | 2022-05-30 | 2022-08-09 | 重庆科技学院 | Buckling constraint system for weakened connecting cover plate |
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| CN106638961A (en) * | 2017-01-10 | 2017-05-10 | 北京交通大学 | Assembly type steel frame connection node with post-seismic recoverable function |
| CN106677341A (en) * | 2017-02-17 | 2017-05-17 | 北京工业大学 | End plate assembled channel steel holed beam column node connecting device restorable in function |
| CN206545269U (en) * | 2017-03-03 | 2017-10-10 | 山东大学 | The beam prefabricated floor connection structure of full assembled steel |
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| JP2008240513A (en) * | 2008-04-22 | 2008-10-09 | Ohbayashi Corp | Vibration control structure of bolt joint portion |
| CN106320517A (en) * | 2016-11-01 | 2017-01-11 | 华南理工大学 | Upper end suspended type steel frame energy-consuming beam-column joint capable of being replaced after earthquakes |
| CN106638961A (en) * | 2017-01-10 | 2017-05-10 | 北京交通大学 | Assembly type steel frame connection node with post-seismic recoverable function |
| CN106677341A (en) * | 2017-02-17 | 2017-05-17 | 北京工业大学 | End plate assembled channel steel holed beam column node connecting device restorable in function |
| CN206545269U (en) * | 2017-03-03 | 2017-10-10 | 山东大学 | The beam prefabricated floor connection structure of full assembled steel |
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| CN108222250A (en) | 2018-06-29 |
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