CN109339274B - High-performance I-shaped shearing type energy dissipation support - Google Patents
High-performance I-shaped shearing type energy dissipation support Download PDFInfo
- Publication number
- CN109339274B CN109339274B CN201811418912.5A CN201811418912A CN109339274B CN 109339274 B CN109339274 B CN 109339274B CN 201811418912 A CN201811418912 A CN 201811418912A CN 109339274 B CN109339274 B CN 109339274B
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- steel plate
- steel
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- support
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- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 11
- 238000010008 shearing Methods 0.000 title claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 221
- 239000010959 steel Substances 0.000 claims abstract description 221
- 238000006073 displacement reaction Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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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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- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a high-performance I-shaped shearing type energy dissipation support, which comprises a first steel plate, a second steel plate, a third steel plate, a fourth steel plate, a fifth steel plate, a sixth steel plate and a seventh steel plate; one end of the second steel plate is fixed on one side surface of the first steel plate, the other end of the second steel plate is fixed on one side surface of the third steel plate, the fourth steel plate is fixed on the other side surface of the first steel plate, the fifth steel plate is fixed on the other side surface of the third steel plate, the sixth steel plate is fixed on one side surface of the second steel plate, the seventh steel plate is fixed on the other side surface of the second steel plate, the sixth steel plate is opposite to the seventh steel plate, two groups of through holes are formed in the first steel plate, the two groups of through holes are respectively arranged on two sides of the sixth steel plate and the seventh steel plate, the through holes in the two groups of through holes are sequentially distributed from top to bottom, the support has excellent ductility and energy consumption capability, yield displacement is small, and the support can yield and dissipate seismic energy before a main body structure is damaged or destroyed.
Description
Technical Field
The invention belongs to the technical field of energy consumption and shock absorption of buildings, and relates to a high-performance I-shaped shearing type energy consumption support.
Background
The support is an important side force resisting component in the structural system, and the stress is mainly axial force, so that the support can be used as a two-force rod. The support can be divided into a common support and a buckling restrained support according to whether the support yields after being pressed.
The common support can be elastically and elastoplastically buckled under pressure, and the bearing capacity is rapidly lost, so that the energy consumption capacity is poor. The buckling restrained brace mainly comprises an inner core material, an outer restrained member and an unbonded sliding interface, and the brace does not buckle when in strong earthquake action, has excellent energy consumption capability and ductility, and remarkably reduces earthquake damage of a main structure. Buckling restrained brace must overcome self elasticity axial deformation in order to reach the yield, therefore the yield displacement is great.
Numerous studies have shown that, due to the large yield displacement of conventional buckling restrained braces, when deployed in concrete structures or steel-concrete mixed structures, it is difficult to first yield and dissipate seismic energy before the concrete member cracks, and buckling restrained braces tend to remain in an elastic state when the concrete member has been severely damaged.
Disclosure of Invention
The present invention aims to overcome the above-mentioned drawbacks of the prior art by providing a high performance i-shear type dissipative brace having excellent ductility and dissipative capacity, small yield displacement, and capable of yielding and dissipating seismic energy before damage or destruction of the main structure.
In order to achieve the above purpose, the high-performance I-shaped shear type energy dissipation brace comprises a first steel plate, a second steel plate, a third steel plate, a fourth steel plate, a fifth steel plate, a sixth steel plate and a seventh steel plate;
one end of the second steel plate is fixed on one side surface of the first steel plate, the other end of the second steel plate is fixed on one side surface of the third steel plate, the fourth steel plate is fixed on the other side surface of the first steel plate, the fifth steel plate is fixed on the other side surface of the third steel plate, the sixth steel plate is fixed on one side surface of the second steel plate, the seventh steel plate is fixed on the other side surface of the second steel plate, the sixth steel plate is opposite to the seventh steel plate, two groups of through holes are formed in the first steel plate, the two groups of through holes are respectively located on two sides of the sixth steel plate and the seventh steel plate, and all through holes in the two groups of through holes are distributed sequentially from top to bottom.
The second steel plate is welded with the first steel plate, the third steel plate, the sixth steel plate and the seventh steel plate through fillet welds, the first steel plate is welded with the fourth steel plate through fillet welds, and the third steel plate is welded with the fifth steel plate through fillet welds.
The through holes in each group of through holes are uniformly distributed from top to bottom in sequence, and the shapes of the through holes are the same.
The first steel plate, the second steel plate and the third steel plate have the same height.
The upper end of the fourth steel plate is flush with the upper end of the first steel plate, the lower end of the fourth steel plate extends to the lower side of the lower end of the first steel plate, the upper end of the fifth steel plate is flush with the upper end of the third steel plate, the lower end of the fifth steel plate extends to the lower side of the lower end of the third steel plate, the lower end of the sixth steel plate and the lower end of the seventh steel plate are flush with the lower end of the second steel plate, and the upper end of the sixth steel plate and the upper end of the seventh steel plate both extend to the upper side of the upper end of the second steel plate.
The side of sixth steel sheet upper end all is provided with the bolt hole on the side of seventh steel sheet upper end.
Each through hole is a rectangular through hole.
The invention has the following beneficial effects:
the high-performance I-shaped shear type energy dissipation support comprises a first steel plate, a second steel plate, a third steel plate, a fourth steel plate, a fifth steel plate, a sixth steel plate and a seventh steel plate, wherein the first steel plate, the second steel plate and the third steel plate form I-shaped steel, the sixth steel plate and the seventh steel plate are respectively positioned at two sides of the second steel plate, all steel plates are connected and combined as a whole to jointly resist the axial force born by the support, the axial yield displacement of the whole support is converted into the shear deformation of two rows of shear yield sections through all through holes under the action of the axial force, compared with the traditional steel support, the support yield displacement is smaller, so that the support is subjected to yield dissipation seismic energy before the main structure is damaged, the main structure is effectively protected, the support ductility and the energy dissipation capability are excellent, and the yield displacement of the support can be changed through adjusting the through holes and the distance during actual operation, so that the design target of the yield energy dissipation before the main structure is damaged is realized.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view taken along the direction 1-1 of FIG. 1;
FIG. 3 is a cross-sectional view taken along the direction 2-2 in FIG. 1;
fig. 4 is a cross-sectional view taken along the direction 3-3 in fig. 1.
Wherein 1 is a first steel plate, 2 is a second steel plate, 3 is a third steel plate, 4 is a fourth steel plate, 5 is a fifth steel plate, 6 is a sixth steel plate, and 7 is a seventh steel plate.
Detailed Description
The invention is described in further detail below with reference to the attached drawing figures:
as shown in fig. 1, 2, 3 and 4, the high-performance i-shaped shear type energy dissipation brace according to the present invention comprises a first steel plate 1, a second steel plate 2, a third steel plate 3, a fourth steel plate 4, a fifth steel plate 5, a sixth steel plate 6 and a seventh steel plate 7; one end of the second steel plate 2 is fixed on one side surface of the first steel plate 1, the other end of the second steel plate 2 is fixed on one side surface of the third steel plate 3, the fourth steel plate 4 is fixed on the other side surface of the first steel plate 1, the fifth steel plate 5 is fixed on the other side surface of the third steel plate 3, the sixth steel plate 6 is fixed on one side surface of the second steel plate 2, the seventh steel plate 7 is fixed on the other side surface of the second steel plate 2, the sixth steel plate 6 is opposite to the seventh steel plate 7, two groups of through holes are formed in the first steel plate 1, wherein the two groups of through holes are respectively positioned on two sides of the sixth steel plate 6 and the seventh steel plate 7, and all through holes in the two groups of through holes are sequentially distributed from top to bottom.
The second steel plate 2 is welded with the first steel plate 1, the third steel plate 3, the sixth steel plate 6 and the seventh steel plate 7 through fillet welds, the first steel plate 1 is welded with the fourth steel plate 4 through fillet welds, and the third steel plate 3 is welded with the fifth steel plate 5 through fillet welds; the through holes in each group of through holes are uniformly distributed from top to bottom in sequence, and the shapes of the through holes are the same; the first steel plate 1, the second steel plate 2 and the third steel plate 3 have the same height.
The upper end of the fourth steel plate 4 is flush with the upper end of the first steel plate 1, the lower end of the fourth steel plate 4 extends to the lower side of the lower end of the first steel plate 1, the upper end of the fifth steel plate 5 is flush with the upper end of the third steel plate 3, the lower end of the fifth steel plate 5 extends to the lower side of the lower end of the third steel plate 3, the lower end of the sixth steel plate 6 and the lower end of the seventh steel plate 7 are flush with the lower end of the second steel plate 2, and the upper ends of the sixth steel plate 6 and the seventh steel plate 7 extend to the upper side of the upper end of the second steel plate 2.
The side surface of the upper end of the sixth steel plate 6 and the side surface of the upper end of the seventh steel plate 7 are respectively provided with a bolt hole; each through hole is a rectangular through hole.
The implementation process of the invention is as follows:
1) First, processing and manufacturing a first steel plate 1, a second steel plate 2, a third steel plate 3, a fourth steel plate 4, a fifth steel plate 5, a sixth steel plate 6 and a seventh steel plate 7; 2) Forming an I-shaped steel structure by the second steel plate 2, the first steel plate 1 and the third steel plate 3 in a fillet weld mode; 3) Welding a fourth steel plate 4 to the outer side of the first steel plate 1 by means of fillet welding; welding a fifth steel plate 5 to the outer side of the third steel plate 3 by means of fillet welding; 4) The sixth steel plate 6 and the seventh steel plate 7 are welded to both sides of the second steel plate 2 by fillet welding.
The shearing yield principle of the invention is as follows: when the support is subjected to axial load, the axial displacement of the support is converted into shear displacement of a plurality of shear yield segments, so that the support plays a role in dissipating seismic energy under small axial deformation.
Claims (5)
1. The I-shaped shearing type energy dissipation support is characterized by comprising a first steel plate (1), a second steel plate (2), a third steel plate (3), a fourth steel plate (4), a fifth steel plate (5), a sixth steel plate (6) and a seventh steel plate (7);
one end of the second steel plate (2) is fixed on one side surface of the first steel plate (1), the other end of the second steel plate (2) is fixed on one side surface of the third steel plate (3), the fourth steel plate (4) is fixed on the other side surface of the first steel plate (1), the fifth steel plate (5) is fixed on the other side surface of the third steel plate (3), the sixth steel plate (6) is fixed on one side surface of the second steel plate (2), the seventh steel plate (7) is fixed on the other side surface of the second steel plate (2), the sixth steel plate (6) is opposite to the seventh steel plate (7), two groups of through holes are formed in the second steel plate (2), wherein the two groups of through holes are positioned on two sides of the sixth steel plate (6) and the seventh steel plate (7), and all through holes in the two groups of through holes are distributed in sequence from top to bottom;
the heights of the first steel plate (1), the second steel plate (2) and the third steel plate (3) are the same;
the upper end of fourth steel sheet (4) flushes with the upper end of first steel sheet (1), and the lower extreme of fourth steel sheet (4) extends to the below of first steel sheet (1) lower extreme, and the upper end of fifth steel sheet (5) flushes with the upper end of third steel sheet (3), and the lower extreme of fifth steel sheet (5) extends to the below of third steel sheet (3) lower extreme, and the lower extreme of sixth steel sheet (6) and the lower extreme of seventh steel sheet (7) flush with the lower extreme of second steel sheet (2), and the upper end of sixth steel sheet (6) and the upper end of seventh steel sheet (7) all extend to the top of second steel sheet (2) upper end.
2. The i-shaped shear type energy dissipation brace according to claim 1, wherein the second steel plate (2) is welded to the first steel plate (1), the third steel plate (3), the sixth steel plate (6) and the seventh steel plate (7) through fillet welds, the first steel plate (1) is welded to the fourth steel plate (4) through fillet welds, and the third steel plate (3) is welded to the fifth steel plate (5) through fillet welds.
3. The i-shaped shear type energy dissipating support of claim 1 wherein the through holes in each set of through holes are uniformly distributed in sequence from top to bottom and the shape of the through holes is the same.
4. The i-shaped shear type energy dissipation support according to claim 1, wherein the side surface of the upper end of the sixth steel plate (6) and the side surface of the upper end of the seventh steel plate (7) are provided with bolt holes.
5. The i-shaped shear type energy dissipating support of claim 1, wherein each through hole is a rectangular through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811418912.5A CN109339274B (en) | 2018-11-26 | 2018-11-26 | High-performance I-shaped shearing type energy dissipation support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811418912.5A CN109339274B (en) | 2018-11-26 | 2018-11-26 | High-performance I-shaped shearing type energy dissipation support |
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| Publication Number | Publication Date |
|---|---|
| CN109339274A CN109339274A (en) | 2019-02-15 |
| CN109339274B true CN109339274B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811418912.5A Active CN109339274B (en) | 2018-11-26 | 2018-11-26 | High-performance I-shaped shearing type energy dissipation support |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779067B (en) * | 2019-03-25 | 2023-08-22 | 重庆大学 | Novel shearing type buckling-free energy dissipation support |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201184000Y (en) * | 2007-11-15 | 2009-01-21 | 滕军 | Damper for limb-connecting shear force wall girder-connecting energy consumption |
| CN103711214A (en) * | 2013-12-16 | 2014-04-09 | 北京工业大学 | Assembled-type viscoelastic buckling-restrained brace |
| CN203947616U (en) * | 2014-07-16 | 2014-11-19 | 上海堃熠工程减震科技有限公司 | A kind of coupling beam formula anti-seismic damper |
| CN209482511U (en) * | 2018-11-26 | 2019-10-11 | 中国有色金属工业西安勘察设计研究院有限公司 | A kind of i shaped cross section shearing-type energy-consumption support |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000096867A (en) * | 1998-09-17 | 2000-04-04 | Nippon Steel Corp | Vibration control member |
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2018
- 2018-11-26 CN CN201811418912.5A patent/CN109339274B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201184000Y (en) * | 2007-11-15 | 2009-01-21 | 滕军 | Damper for limb-connecting shear force wall girder-connecting energy consumption |
| CN103711214A (en) * | 2013-12-16 | 2014-04-09 | 北京工业大学 | Assembled-type viscoelastic buckling-restrained brace |
| CN203947616U (en) * | 2014-07-16 | 2014-11-19 | 上海堃熠工程减震科技有限公司 | A kind of coupling beam formula anti-seismic damper |
| CN209482511U (en) * | 2018-11-26 | 2019-10-11 | 中国有色金属工业西安勘察设计研究院有限公司 | A kind of i shaped cross section shearing-type energy-consumption support |
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| Publication number | Publication date |
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| CN109339274A (en) | 2019-02-15 |
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