CN110042919B - Assembly type steel structure prestress self-resetting energy dissipation support with inclined strut - Google Patents
Assembly type steel structure prestress self-resetting energy dissipation support with inclined strut Download PDFInfo
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- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 46
- 238000005265 energy consumption Methods 0.000 claims abstract description 37
- 238000006073 displacement reaction Methods 0.000 claims abstract description 10
- 230000003321 amplification Effects 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 10
- 230000007246 mechanism Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 6
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- 239000011229 interlayer Substances 0.000 description 2
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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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Abstract
The invention discloses an assembled steel structure prestress self-resetting energy dissipation support with an inclined strut, which comprises: the energy consumption system, the self-reset system and the base; the lower extreme of stand welds mutually with the last flange board at stull, the upper cover plate sets up in the last flange board both ends of stull, prop the steel sheet and weld between the both sides flange board on stand upper portion immediately, the internal stay steel sheet welds between the upper and lower flange board at stull both ends, the external stay steel sheet welds between the upper and lower flange board of stull and upper and lower apron, from the reset system including the pullover, cable wire and ground tackle, the cable wire passes the web both sides of stull, between the upper and lower flange board, the cable wire both ends are fixed through ground tackle respectively. According to the technical scheme, the small deformation of the steel cable at the bottom of the support is amplified through the lever action of the rotating mechanism, so that the top of the support can generate enough horizontal displacement meeting the requirement of earthquake-resistant specifications, energy consumption and self-resetting functions are provided for the structure, and the post-earthquake repairing cost and indirect economic loss are reduced.
Description
Technical Field
The invention relates to the technical field of structural engineering, in particular to an assembly type steel structure prestress self-resetting energy dissipation support with inclined struts.
Background
China is located in the west of the Pacific volcanic seismic zone and is one of the most serious countries in the world, and meanwhile, earthquake is one of natural disasters, so that the earthquake-resistant and disaster-reducing work for building structures is necessary to be paid attention to, and great threat is brought to the survival and development of human beings and great economic loss is caused. The steel frame-supporting structure system is one of the commonly used dual lateral force resisting structure systems, and under the action of a horizontal earthquake, the supporting structure can bear most horizontal shearing force, so that the horizontal displacement of the whole structure is reduced. The traditional central support structure is easy to buckle under the action of an earthquake, so that the bearing capacity of the whole structure is influenced by brittle fracture; in the traditional eccentric supporting structure system, the energy consumption beam end is seriously damaged in a strong earthquake, and is difficult to repair after the earthquake; the design of the oblique corner support usually refers to the research result of the eccentric support, and corresponding experimental and theoretical bases are lacked; the buckling-restrained brace has the advantages of complex manufacturing process, higher manufacturing cost, larger residual deformation after a large earthquake action, larger corresponding residual deformation of the whole structure and difficult repair after the earthquake; after the self-resetting buckling-restrained brace is in an earthquake, when the energy-consuming core of the brace is damaged, the whole brace needs to be replaced, the purpose of repairing the brace by only replacing the energy-consuming core mechanism cannot be realized, steel is wasted, the repairing cost is high, and the arrangement of the brace affects the arrangement of doors and windows; the deformation of cable in traditional cable bearing structure is too big for the cable force increment is big, and the structure can not produce sufficient horizontal displacement in order to satisfy the requirement of antidetonation standard to ductile structure.
Disclosure of Invention
In view of at least one of the above problems, the present invention provides an assembled steel structure prestressed self-resetting energy dissipation brace with diagonal braces, which aims to overcome the defects in the background art, reduce or avoid the damage of the main structure, dissipate the earthquake energy, reduce the earthquake action, minimize the residual deformation of the structure, reduce the post-earthquake repair cost and the indirect economic loss thereof, and amplify the micro deformation of the steel cable at the bottom of the brace through the lever action of the rotating mechanism under the earthquake action, so that the top of the brace can generate enough horizontal displacement meeting the earthquake-resistant standard requirements, thereby providing energy dissipation and self-resetting functions for the structure.
In order to achieve the above object, the present invention provides an assembled steel structure prestressed self-resetting energy dissipation brace with bracing, comprising: the energy consumption system, the self-reset system and the base; the energy dissipation system comprises an upright post, an inclined strut, an upright strut steel plate, a pin shaft, an energy dissipation system inner core and an energy dissipation system outer shell, wherein the energy dissipation system inner core comprises a cross strut and an inner strut steel plate, and the energy dissipation system outer shell comprises an outer strut steel plate, an upper cover plate and a lower cover plate; the cross section of the upright post is H-shaped, the cross section of the cross-brace is I-shaped, the lower end of the upright post is welded with the upper flange plate of the cross-brace, the upper end of the diagonal brace is welded with the flange plates at two sides of the upright post, the lower end of the diagonal brace is respectively welded at two sides of the upper flange plate of the cross-brace, the upper cover plate is arranged on the upper flange plate of the cross-brace and close to two ends of the lower end of the diagonal brace, the lower cover plate is arranged on the lower flange plate of the cross-brace and corresponding to the upper cover plate, the vertical brace steel plate is welded between the flange plates at two sides of the upper part of the upright post, the inner brace steel plate is welded between the upper flange plate and the lower flange plate at two ends of the cross-brace, the outer brace steel plate is welded between the upper flange plate and the lower cover plate of the cross-brace, and the pin shaft is penetratingly arranged in the; the self-resetting system comprises a sleeve head, a steel cable and an anchorage device, wherein the steel cable penetrates through two sides of a web plate of the cross brace and between an upper flange plate and a lower flange plate, the sleeve head is close to the outer sides of the cross brace on two sides, and two ends of the steel cable respectively penetrate through the sleeve head and are fixed through the anchorage device; the base includes girder steel and floor, the floor weld in between the last lower plate of girder steel, the lower extreme of external stay steel sheet with the apron down with the upper surface of girder steel welds mutually.
In the above technical solution, preferably, the sleeve head is a frame including an inner layer of sleeve plate and an outer layer of sleeve plate, and a plurality of layers of stiffening ribs are arranged between the two layers of sleeve plates; or the sleeve head is a steel plate provided with a hole, and two ends of the steel cable respectively penetrate through the hole of the sleeve head and are fixed through the anchorage device.
In the above technical solution, preferably, the sleeve head is closely attached to, but not welded to, the ends of the cross brace, the outer brace steel plate, the inner brace steel plate, the upper cover plate, and the lower cover plate.
In the above technical solution, preferably, upper and lower ends of the sleeve head, which are in contact with end surfaces of the upper cover plate, the lower cover plate and the energy consumption system shell, are protruded half cylinders, and the sleeve head rotates around the half cylinders as an axis when being extruded by an inner core of the energy consumption system.
In the above technical solution, preferably, when the socket heads on both sides are pressed by the inner core of the energy consumption system and deflected outward, the steel cable is extended and the tension thereof is increased, and after the horizontal shearing force disappears, the tension of the steel cable is used as an elastic restoring force to restore the energy consumption system.
In the above technical solution, preferably, the cross section of the upright column is H-shaped or box-shaped, and the diagonal brace is a hollow square steel tube or channel steel.
In the above technical solution, preferably, the upper end of the upright is connected to the upper frame beam, and the base is connected to the lower frame beam; or the upper end of the upright post is connected with the lower frame beam, and the base is connected with the upper frame beam.
In the above technical solution, preferably, the vertical support steel plate and the external support steel plate are symmetrically arranged with respect to the vertical column, and the upper cover plate, the lower cover plate and the diagonal support are symmetrically arranged with respect to the vertical column.
In the above technical solution, preferably, the deformation of the steel cable is amplified by a lever principle so that the top of the upright post generates a horizontal displacement, and the amplification factor is adjusted by the support height of the upright post and the position of the steel cable.
In the above technical scheme, preferably, the energy dissipation system further includes a bolt, the bolt is installed in the long bolt hole reserved in the outer bracing steel plate and the inner bracing steel plate, after the bolt is screwed in the outer bracing steel plate and the inner bracing steel plate, along with the rotation of the energy dissipation system shell, the energy dissipation performance is increased through the friction between the bolt and the outer bracing steel plate and the inner bracing steel plate, and when self-resetting is required, the bolt is loosened.
Compared with the prior art, the invention has the beneficial effects that: when the column top of the upright column is acted by a horizontal force, the energy consumption system rotates, sleeve heads on two sides of the energy consumption system are extruded by the inner core to deflect outwards, so that the steel cable at the bottom of the support generates micro deformation, the deformation is amplified through a lever principle of a rotating mechanism, the top of the upright column can generate enough horizontal displacement to meet the requirement of an earthquake-resistant standard on the maximum interlayer displacement angle of the ductile structure, and the amplification factor can be realized by adjusting the support height and the position of the steel cable according to actual requirements.
The vertical support does not influence the arrangement of doors and windows, is convenient to install, reduces the workload of site construction, and reduces the construction period. After the inclined strut is added, the size of the upright post is reduced, and steel is saved; meanwhile, the integral rigidity of the structure is enhanced, and the energy consumption capacity and the bearing capacity of the structure are greatly improved. According to the invention, after the bolt is screwed down, the energy consumption capacity can be increased, and when the self-resetting is realized, only the bolt needs to be loosened; and in an earthquake, the bolts of the energy consumption system are easy to replace for repairing the structure.
Drawings
FIG. 1 is an overall assembly view of an assembled steel structure prestressed self-resetting energy dissipating brace with braces according to an embodiment of the present invention;
FIG. 2 is an overall assembly view of an assembled steel structure prestressed self-resetting energy dissipating brace with braces according to another embodiment of the present invention;
FIG. 3 is an exploded view of an assembled steel structural prestressed self-resetting energy dissipating brace with braces according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an energy dissipation system of an assembled steel structure prestressed self-resetting energy dissipation brace with braces according to an embodiment of the present invention;
FIG. 5 is an exploded view of an energy dissipation system of an assembled steel structural prestressed self-resetting energy dissipation brace with braces according to an embodiment of the present invention;
FIG. 6 is a self-resetting system diagram of an assembled steel structure prestressed self-resetting energy dissipating brace with braces according to an embodiment of the present invention;
FIG. 7 is an exploded view of a self-resetting system of an assembled steel structural prestressed self-resetting energy dissipating brace with braces according to an embodiment of the present invention;
fig. 8 is a schematic diagram of another steel plate socket of the pre-stressed self-resetting energy dissipation brace with an assembled steel structure and inclined struts according to an embodiment of the invention.
In the drawings, the correspondence between each component and the reference numeral is:
1. the steel structure comprises a column, 2 parts of diagonal braces, 3 parts of vertical brace steel plates, 4 parts of external brace steel plates, 5 parts of internal brace steel plates, 6 parts of upper cover plates, 7 parts of lower cover plates, 8 parts of transverse braces, 9 parts of pin shafts, 10 parts of sleeve heads, 11 parts of anchorage devices, 12 parts of steel cables, 13 parts of steel beams, 14 parts of rib plates, 15 parts of bolts and 16 parts of steel plate sleeve heads.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention is described in further detail below with reference to the attached drawing figures:
as shown in fig. 1, the invention provides an assembled steel structure prestressed self-resetting energy dissipation brace with diagonal braces, comprising: the energy consumption system, the self-reset system and the base; the energy dissipation system comprises an upright post 1, an inclined strut 2, a vertical strut steel plate 3, a pin shaft 9, an energy dissipation system core and an energy dissipation system shell, wherein the energy dissipation system core comprises a cross strut 8 and an inner strut steel plate 5, and the energy dissipation system shell comprises an outer strut steel plate 4, an upper cover plate 6 and a lower cover plate 7; the cross section of the upright post 1 is H-shaped, the cross brace 8 is I-shaped, the lower end of the upright post 1 is welded with the upper flange plate of the cross brace 8, the upper end of the diagonal brace 2 is welded with the flange plates at two sides of the upright post 1, the lower end of the diagonal brace 2 is respectively welded at two sides of the upper flange plate of the cross brace 8, the upper cover plate 6 is arranged at the two ends of the upper flange plate of the cross brace 8, which are close to the lower end of the diagonal brace 2, the lower cover plate 7 is arranged on the lower flange plate of the cross brace 8, which corresponds to the upper cover plate 6, the vertical brace steel plate 3 is welded between the flange plates at two sides of the upper part of the upright post 1, the inner brace steel plate 5 is welded between the upper flange plate and the lower flange plate at two ends of the cross brace 8, the outer brace steel plate 4 is welded between the upper flange plate and the lower cover plate of the cross; the self-resetting system comprises a sleeve head 10, a steel cable 12 and an anchorage device 11, wherein the steel cable 12 penetrates through two sides of a web plate of the cross brace 8 and between an upper flange plate and a lower flange plate, the sleeve head 10 is close to the outer sides of the cross braces 8 at two sides, and two ends of the steel cable 12 respectively penetrate through the sleeve head 10 and are fixed through the anchorage device 11; the base comprises a steel beam 13 and a ribbed plate 14, the ribbed plate 14 is welded between an upper plate and a lower plate of the steel beam 13, and the lower end of the external support steel plate 4 and the lower cover plate 7 are welded with the upper surface of the steel beam 13.
In this embodiment, the assembling process of the fabricated steel structure prestressed self-resetting energy dissipation brace with the diagonal braces can be completed in a factory, the energy dissipation system is firstly assembled in the factory and then welded on the steel beam 13 of the base, the self-resetting system is assembled in the energy dissipation system, and the steel cable 12 is tensioned and anchored by the anchorage device 11, so that the brace is processed. Only the support and the frame beam need to be connected on site.
Specifically, the energy consumption system is completed in a factory in the splicing process, the section of the upright post 1 is H-shaped, the lower end of the upright post is welded with the upper flange plate of the cross brace 8, and the vertical brace steel plate 3 is welded between the upper flange plates of the upright post 1; the inclined strut 2 is a hollow square steel pipe, the upper end of the inclined strut is welded with the flange plates on the two sides of the upright post 1, and the lower end of the inclined strut is welded with the upper flange plate of the cross strut 8; the cross section of the cross brace 8 is I-shaped, a pin shaft hole is preset in the cross brace 8, and a long bolt hole is preset in the inner bracing steel plate 5 and welded between the upper flange plate and the lower flange plate at the two ends of the cross brace 8; the external-bracing steel plate 4 is pre-provided with a pin shaft hole and a long bolt hole, the upper part of the external-bracing steel plate is welded with the upper cover plate 6, and the lower part of the external-bracing steel plate is welded with the lower cover plate 7 and then welded with the base steel beam 13.
As shown in fig. 2 to 8, in the above embodiment, preferably, the energy consumption system further includes a bolt 15, the inner supporting steel plate 5 is pre-provided with a long bolt hole, the outer supporting steel plate 4 is pre-provided with a long bolt hole, the bolt 15 is installed in the long bolt hole between the outer supporting steel plate 4 and the inner supporting steel plate 5, and after the bolt 15 is tightened, the energy consumption capacity is increased again through friction between the outer supporting steel plate 4 and the inner supporting steel plate 5 along with the rotation of the energy consumption system casing.
In the above embodiment, preferably, the cuff 10 includes two arrangements, one of which is: the sleeve head 10 is a frame comprising an inner sleeve plate and an outer sleeve plate, a plurality of layers of stiffening ribs are arranged between the two sleeve plates, two ends of a steel cable 12 respectively penetrate through the frame of the sleeve head 10 and are fixed through an anchorage device 11, and the steel cable 12 penetrates through gaps of the plurality of layers of stiffening ribs;
the second is as follows: the sleeve head 10 is a steel plate with a hole reserved, namely a steel plate sleeve head 16, and two ends of the steel cable 12 respectively penetrate through the hole of the steel plate sleeve head 16 and are fixed through the anchorage device 11.
In the above embodiment, the sleeve head 10 is preferably fixed to the end portions of the cross brace 8, the outer brace steel plate 4, the inner brace steel plate 5, the upper cover plate 6 and the lower cover plate 7 by welding.
In the above embodiment, preferably, the upper and lower ends of the sleeve head 10, which are in contact with the end surfaces of the upper cover plate 6, the lower cover plate 7 and the energy consumption system shell, are protruded half cylinders, and the sleeve head 10 rotates around the half cylinders as an axis when being pressed by the energy consumption system core. The pin shaft 9 is arranged at the center positions of the cross brace 8 and the outer bracing steel plate 4, and the outer bracing steel plate 4 is fixed on the base, so that the inner core of the energy consumption system, including the cross brace 8 and the inner bracing steel plate 5, rotates by taking the pin shaft 9 as the center to form a rotation mechanism; the sleeve heads 10 on two sides of the energy consumption system are tightly pressed on the end surfaces on two sides of the inner core and the outer shell under the action of the pretightening force of the steel cable 12, the upright post 1 and the inner core of the energy consumption system rotate in the outer shell of the energy consumption system around the pin shaft 9 under the action of horizontal load on the top of the support, the sleeve heads 10 on two sides of the energy consumption system are extruded by the inner core of the energy consumption system and deflect outwards by taking the semi-cylinders at the upper end and the lower end of the sleeve heads 10 as the axial direction, the inner core of the energy consumption system rotates by taking the pin shaft 9 as the center, and the end surfaces on two ends of the.
In the above embodiment, preferably, the steel cable 12 passes between the upper and lower flange plates on both sides of the web of the wale 8, and the end part passes through the sleeve head 10 and applies pre-tightening force through the anchorage device 11 to fix the steel cable and adjust the structural rigidity; the bolt 15 is loosened, under the action of horizontal force at the top of the upright post 1, the energy consumption system rotates, the sleeve heads 10 on the two sides of the energy consumption system are extruded and deflect outwards, the steel cable 12 is stretched, the tensile force of the steel cable 12 is increased, and after the horizontal force disappears, the tensile force of the steel cable 12 serves as elastic restoring force to restore the energy consumption system to the original position, so that the structure has a self-resetting function.
According to the embodiment, when the bolt 15 exists, the bolt 15 is tightened, energy consumption is increased, the bolt 15 is loosened, and self-resetting is realized; when no bolt 15 is arranged, the energy consumption is carried out by utilizing the extrusion friction between the sleeve head 10 and the inner core, and after the horizontal force disappears, the tension of the steel cable 12 is used as the elastic restoring force to restore the energy consumption system to the original position so as to restore the energy consumption system.
The deformation of the bottom steel cable 12 of the supporting device is amplified through a lever principle, so that the top of the upright post 1 generates enough horizontal displacement to meet the requirement of earthquake-resistant specifications on the maximum interlayer displacement angle of a ductile structure, and the amplification factor is realized by adjusting the supporting height and the position of the steel cable 12.
The upper part of the upright post 1 is connected with the upper beam of the frame, the base is connected with the lower beam, the supporting structure can be used in reverse, the base is connected with the frame beam, and the upright post 1 is connected with the lower beam, so that a frame-supporting structure system can be formed, and the arrangement of frame space doors and windows is not influenced.
In the above embodiment, preferably, the brace 2 is a hollow square steel pipe or a channel steel.
In the above embodiment, preferably, the vertical supporting steel plates 3 and the external supporting steel plates 4 are arranged front-back symmetrically with respect to the vertical column 1, and the upper cover plate 6, the lower cover plate 7 and the inclined supports 2 are arranged left-right symmetrically with respect to the vertical column 1.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a take assembled steel construction prestressing force of bracing from restoring to throne power consumption support which characterized in that includes: the energy consumption system, the self-reset system and the base;
the energy dissipation system comprises an upright post, an inclined strut, an upright strut steel plate, a pin shaft, an energy dissipation system inner core and an energy dissipation system outer shell, wherein the energy dissipation system inner core comprises a cross strut and an inner strut steel plate, and the energy dissipation system outer shell comprises an outer strut steel plate, an upper cover plate and a lower cover plate;
the cross section of the upright post is H-shaped, the cross section of the cross-brace is I-shaped, the lower end of the upright post is welded with the upper flange plate of the cross-brace, the upper end of the diagonal brace is welded with the flange plates at two sides of the upright post, the lower end of the diagonal brace is respectively welded at two sides of the upper flange plate of the cross-brace, the upper cover plate is arranged on the upper flange plate of the cross-brace and close to two ends of the lower end of the diagonal brace, the lower cover plate is arranged on the lower flange plate of the cross-brace and corresponding to the upper cover plate, the vertical brace steel plate is welded between the flange plates at two sides of the upper part of the upright post, the inner brace steel plate is welded between the upper flange plate and the lower flange plate at two ends of the cross-brace, the outer brace steel plate is welded between the upper flange plate and the lower cover plate of the cross-brace, and the pin shaft is penetratingly arranged in the;
the self-resetting system comprises a sleeve head, a steel cable and an anchorage device, wherein the steel cable penetrates through two sides of a web plate of the cross brace and between an upper flange plate and a lower flange plate, the sleeve head is close to the outer sides of the cross brace on two sides, and two ends of the steel cable respectively penetrate through the sleeve head and are fixed through the anchorage device;
the upper end and the lower end of the sleeve head, which are contacted with the end surfaces of the upper cover plate, the lower cover plate and the energy consumption system shell, are protruded semi-cylinders, and the sleeve head rotates by taking the semi-cylinders as an axis when being extruded by an inner core of the energy consumption system;
the base comprises a steel beam and a rib plate, the rib plate is welded between an upper plate and a lower plate of the steel beam, and the lower end of the external support steel plate and the lower cover plate are welded with the upper surface of the steel beam;
the sleeve head is a frame comprising an inner sleeve plate and an outer sleeve plate, and a plurality of layers of stiffening ribs are arranged between the two sleeve plates; or the sleeve head is a steel plate provided with a hole, and two ends of the steel cable respectively penetrate through the hole of the sleeve head and are fixed through the anchorage device.
2. The fabricated steel structure prestressed self-resetting energy dissipation brace with braces of claim 1, wherein the sleeve head is tightly fixed with the ends of the cross brace, the outer bracing steel plate, the inner bracing steel plate, the upper cover plate and the lower cover plate without welding.
3. The fabricated steel structure prestressed self-resetting energy dissipation brace with braces according to claim 1, wherein the steel cables are stretched and the tensile force of the steel cables is increased when the socket heads on both sides are pressed by the inner core of the energy dissipation system and deflected outwards, and the tensile force of the steel cables is used as elastic restoring force to reset the energy dissipation system after the horizontal shearing force disappears.
4. The assembled steel structure prestressed self-resetting energy dissipation brace with inclined struts according to claim 1, wherein the cross section of the upright is H-shaped or box-shaped, and the inclined struts are hollow square steel tubes or channel steel.
5. The assembled steel structure prestressed self-resetting energy dissipation brace with inclined struts according to claim 1, wherein the upper ends of the upright posts are connected with the upper frame beam, and the base is connected with the lower frame beam; or,
the upper end of the upright post is connected with the lower frame beam, and the base is connected with the upper frame beam.
6. The assembled steel structure prestressed self-resetting energy dissipation brace with inclined struts according to claim 1, wherein the vertical strut steel plate and the external strut steel plate are symmetrically arranged in front and back directions relative to the upright post, and the upper cover plate, the lower cover plate and the inclined struts are symmetrically arranged in left and right directions relative to the upright post.
7. The fabricated steel structure prestressed self-resetting energy dissipation brace with inclined struts according to claim 1, wherein the deformation of the steel cables is amplified through a lever principle to produce horizontal displacement of the top of the upright, and the amplification factor is adjusted through the support height of the upright and the positions of the steel cables.
8. The assembled steel structure prestressed self-resetting energy dissipation brace with inclined struts according to claim 1, wherein the energy dissipation system further comprises bolts, the bolts are installed in long bolt holes reserved in the outer bracing steel plate and the inner bracing steel plate, after the bolts are screwed in the outer bracing steel plate and the inner bracing steel plate, energy dissipation performance is increased through friction between the bolts and the outer bracing steel plate and the inner bracing steel plate along with rotation of the energy dissipation system shell, and the bolts are loosened when self-resetting is required.
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| CN201910271605.7A CN110042919B (en) | 2019-04-04 | 2019-04-04 | Assembly type steel structure prestress self-resetting energy dissipation support with inclined strut |
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| CN201910271605.7A CN110042919B (en) | 2019-04-04 | 2019-04-04 | Assembly type steel structure prestress self-resetting energy dissipation support with inclined strut |
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| CN110042919B true CN110042919B (en) | 2020-12-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201883563U (en) * | 2010-12-24 | 2011-06-29 | 中国中建设计集团有限公司 | Energy dissipation support system consisting of energy dissipation steel plate and inclined strut |
| US20150184413A1 (en) * | 2014-01-01 | 2015-07-02 | Steven E. Pryor | Self-Centering Braced Frame for Seismic Resistance in Buildings |
| CN103981965A (en) * | 2014-04-11 | 2014-08-13 | 北京工业大学 | Self-resetting-prestress bending-preventing support of channel-steel assembled steel structure |
| CN105155710B (en) * | 2015-08-06 | 2017-07-11 | 北京建筑大学 | A kind of Self-resetting mild steel energy dissipation support |
| CN106351348B (en) * | 2016-09-20 | 2018-10-09 | 北京工业大学 | A kind of assembled Self-resetting energy dissipation brace |
| CN107687282B (en) * | 2017-09-04 | 2019-06-07 | 北京工业大学 | A kind of assembling type steel structure Self-resetting energy dissipation brace device |
| CN107905401B (en) * | 2017-11-03 | 2019-08-09 | 中铁建设集团北京工程有限公司 | A kind of assembling type steel structure H profile steel Self-resetting energy dissipation brace device |
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2019
- 2019-04-04 CN CN201910271605.7A patent/CN110042919B/en active Active
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Effective date of registration: 20240709 Address after: 230000 B-1015, wo Yuan Garden, 81 Ganquan Road, Shushan District, Hefei, Anhui. Patentee after: HEFEI MINGLONG ELECTRONIC TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 100124 No. 100 Chaoyang District Ping Tian Park, Beijing Patentee before: Beijing University of Technology Country or region before: China |