CN113152711A - Buckling restrained brace - Google Patents
Buckling restrained brace Download PDFInfo
- Publication number
- CN113152711A CN113152711A CN202110284911.1A CN202110284911A CN113152711A CN 113152711 A CN113152711 A CN 113152711A CN 202110284911 A CN202110284911 A CN 202110284911A CN 113152711 A CN113152711 A CN 113152711A
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- CN
- China
- Prior art keywords
- steel
- core
- plate
- sleeve
- buckling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 72
- 239000010959 steel Substances 0.000 claims description 72
- 230000000452 restraining effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins
Abstract
The application provides an anti-buckling support which comprises a core plate and an external sleeve; the core plate is provided with a constraint component; the external sleeve is sleeved on the core plate; the constraint component is positioned between the core plate and the inner wall of the outer connecting sleeve; two ends of the external connecting sleeve are respectively provided with a perforated plate for limiting the movement range of the restraint assembly; the perforated plate is provided with a through hole corresponding to the core plate. According to the technical scheme provided by the embodiment of the application, the constraint component is arranged between the core plate and the outer sleeve, when the supporting structure is in an earthquake, all the axial acting force borne by the core plate of the supporting center is borne, the core plate yields under the action of pressure or tension, and the constraint component is matched to effectively dissipate the energy of the earthquake through plastic deformation.
Description
Technical Field
The application relates to the technical field of steel structures, in particular to a buckling restrained brace.
Background
The steel construction is used as the main part commonly in modern building, the steel construction has strong shock resistance, advantages such as construction convenience, in the structure of encorbelmenting greatly, also often use the steel construction as the main part in reality, design the difficult point of encorbelmenting the structure greatly and just how ensure that the structure of encorbelmenting greatly has better antidetonation effect, current structure antidetonation effect of encorbelmenting greatly is relatively poor, buckling restrained brace is a novel shock-resistant structure, will buckle-restrained brace use must improve the anti-seismic performance of steel construction in the steel construction, consequently how to effectively combine buckling-restrained brace and steel construction, be the technical problem that needs now to solve.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide an anti-buckling support.
The application provides an anti-buckling support which comprises a core plate and an external sleeve; the core plate is provided with a constraint component; the external sleeve is sleeved on the core plate; the constraint component is positioned between the core plate and the inner wall of the outer connecting sleeve; two ends of the external connecting sleeve are respectively provided with a perforated plate for limiting the movement range of the restraint assembly; the perforated plate is provided with a through hole corresponding to the core plate.
Further, the core plate is made of I-shaped steel; t-shaped steel is respectively arranged on two sides of the web plate of the I-shaped steel; the T-shaped steel is positioned in the middle of the I-shaped steel and forms a field-shaped structure with the I-shaped steel in an enclosing mode.
Furthermore, the constraint component is a steel pipe; and steel pipes are arranged between the T-shaped steel and the I-shaped steel and are welded with the steel pipes.
Furthermore, the length of the steel pipe corresponds to the length of the external sleeve and corresponds to the distance between the two perforated plates.
Furthermore, one end of the core plate, which is positioned outside the external sleeve, is also provided with a mounting plate; the mounting plate is parallel to the perforated plate.
Further, the device also comprises a frame; and a group of opposite angles of the frame are respectively hinged with the two mounting plates through hinge shafts.
Furthermore, a lead core rod is arranged at the joint of the mounting plate and the frame; the lead-added core rods are uniformly distributed around the hinged shaft and used for limiting the relative rotation of the mounting plate and the frame.
Further, the lead-added core rod comprises a hollow steel pipe sleeve; a lead core and a limiting steel block are arranged inside the steel pipe sleeve; the lead core is positioned in the middle of the steel pipe sleeve, and the two ends of the lead core are respectively limited to move by the limiting steel blocks; the limiting steel block is fixed with the steel pipe sleeve through a positioning pin.
The application has the advantages and positive effects that:
according to the technical scheme, the constraint component is arranged between the core plate and the external sleeve, when the supporting structure is in an earthquake, all the axial acting force borne by the core plate of the supporting center is borne, the core plate yields under the action of pressure or tension, and the constraint component is matched to effectively dissipate the energy of the earthquake through plastic deformation.
Drawings
FIG. 1 is a schematic structural view of a buckling restrained brace provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of an apertured plate of a buckling restrained brace provided in an embodiment of the present application;
FIG. 3 is a structural schematic diagram of a cross section of an anti-buckling support provided in an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a frame of an anti-buckling support provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a leaded core rod of an anti-buckling support provided in an embodiment of the present application.
The text labels in the figures are represented as: 100-external sleeve; 110-perforated plate; 200-core board; 210-T section steel; 220-a steel pipe; 230-a mounting plate; 300-a frame; 310-a leaded core pin; 311-steel pipe sleeve; 312-lead core; 313-limiting steel block.
Detailed Description
The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.
Referring to fig. 1-5, the present embodiment provides a buckling restrained brace, which includes a core plate 200 and an outer sleeve 100; the core plate 200 is made of I-shaped steel, and two sides of a web plate of the core plate are respectively welded with T-shaped steel 210; the T-shaped steel 210 is positioned in the middle of the I-shaped steel and forms a field-shaped structure with the I-shaped steel in a surrounding mode.
In a preferred embodiment, the outer sleeve 100 is a square steel tube, which is sleeved on the core plate (200) and has an inner diameter corresponding to the field structure formed by the core plate 200 and the T-shaped steel 210.
In a preferred embodiment, the included angles between the i-steel and the T-steel 210 are also welded with a constraint component respectively; the restraint assembly is a steel tube 220, and the section of the steel tube 220 is square.
In a preferred embodiment, the length of the steel pipe 220 is the same as that of the outer sleeve 100, and the two ends of the outer sleeve 100 are respectively provided with a perforated plate 110 for limiting the sliding of the steel pipe 220; the perforated plate 110 is provided with through holes corresponding to the i-beam and the T-beam 210, respectively, so that the through holes can extend to the outside of the outer sleeve 100.
In a preferred embodiment, the end surfaces of the i-beam and T-beam 210 outside the outer joint sleeve 100 are further provided with mounting plates 230; mounting plate 230 is parallel to aperture plate 110 for interfacing with frame 300.
In a preferred embodiment, a set of opposite corners of the frame 300 are respectively hinged to the two mounting plates 230 through hinge shafts, and the connection position of the two mounting plates is further provided with a lead-added core bar 310; the leaded core bars 310 are uniformly arranged around the hinge shaft for restricting the relative rotation of the mounting plate 230 and the frame 300. When the support bears the acting force of a small earthquake, the lead core steel rod 310 does not rotate, and the fixed connection is equivalent to the fixed connection, so that the support is more beneficial to bearing earthquake force. When bearing the action force of a large earthquake, the leaded core rod 310 yields and deforms due to the shearing force, so that the functions of dissipating energy and increasing the structural damping can be achieved.
In a preferred embodiment, the leaded core pin 310 comprises a hollow steel tube jacket 311; a lead core 312 and a limiting steel block 313 are arranged inside the steel pipe sleeve 311; the lead core 312 is positioned in the middle of the steel pipe sleeve 311, and the two ends of the lead core are respectively limited to move by the limiting steel block 313; the limiting steel block 313 is fixed with the steel pipe sleeve 311 through a positioning pin.
In a preferred embodiment, the leaded core pin 310 also includes a nest; the lead core 312 is arranged in the embedded sleeve, and the embedded sleeve is fixedly arranged in the steel pipe sleeve 311; preferably, the nest is also provided with through holes along the radial direction, namely: the axis of the through hole is parallel to the radial direction of the nest. Specifically, the through holes are arranged according to the overall stress requirement of the leaded core rod 310, and the number of the through holes is inversely proportional to the stress intensity; meanwhile, the breaking point of the leaded core rod 310 can be controlled through the arrangement of the through holes, so that the control and the use are convenient.
Specifically, the nesting comprises: the device comprises a hollow columnar embedded pipe and embedded plugs which are symmetrically arranged at two ends of the embedded pipe and are detachably arranged with the embedded pipe; the insertion tube is used for accommodating a lead and the insertion plug is used for limiting the lead in the insertion tube. Preferably, be equipped with the through-hole on the embedded pipe lateral wall, can predetermine the regulation to the bearing capacity of pincers pipe lateral wall, if: the middle part of the side wall of the embedded pipe is not provided with a through hole, so that enough bearing strength is kept, and a main bearing part is formed; but the two ends of the embedded pipe are provided with through holes distributed along the side wall of the embedded pipe to form an auxiliary bearing part.
After the nesting is placed in the steel pipe sleeve, when the leaded core rod 310 bears external force, the leaded core rod 310 generates yield deformation due to shearing force, but because of the nesting, the capacity of bearing the shearing force can be enhanced to a certain extent, the efficiency of energy dissipation is enhanced, and the function of structural damping is increased. However, due to the design of the auxiliary bearing part, once shearing failure occurs, the two ends of the cored lead rod belong to the weakened parts relative to the middle part, so that the cored lead rod can be damaged preferentially, and the dissipation capacity of the cored lead rod on seismic energy is further improved.
The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other contexts without modification may be viewed as within the scope of the present application.
Claims (8)
1. The buckling-restrained brace is characterized by comprising a core plate (200) and an outer sleeve (100); the core plate (200) is provided with a constraint component; the external connecting sleeve (100) is sleeved on the core plate (200); the restraint assembly is positioned between the core plate (200) and the inner wall of the outer sleeve (100); both ends of the external sleeve (100) are respectively provided with a perforated plate (110) for limiting the movement range of the restraint assembly; the perforated plate (110) is provided with a through hole corresponding to the core plate (200).
2. The buckling-restrained brace as defined in claim 1, wherein the core plate (200) is an i-steel; t-shaped steel (210) is respectively arranged on two sides of the web plate of the I-shaped steel; the T-shaped steel (210) is located in the middle of the I-shaped steel and forms a field-shaped structure with the I-shaped steel in a surrounding mode.
3. The buckling-restrained brace of claim 2, wherein the restraining assembly is a steel tube (220); the steel pipe (220) is arranged between the T-shaped steel (210) and the I-shaped steel and is welded with the steel pipe (220).
4. The buckling-restrained brace according to claim 3, wherein the length of the steel tube (220) corresponds to the length of the outer joint sleeve (100) and corresponds to the distance between the two perforated plates (110).
5. The buckling-restrained brace as claimed in claim 1, wherein an end of the core plate (200) located outside the outer joint sleeve (100) is further provided with a mounting plate (230); the mounting plate (230) is parallel to the aperture plate (110).
6. The buckling-restrained brace of claim 5, further comprising a frame (300); a group of opposite corners of the frame (300) are respectively hinged with the two mounting plates (230) through hinge shafts.
7. The buckling-restrained brace as claimed in claim 6, wherein a lead core bar (310) is further provided at the connection of the mounting plate (230) and the frame (300); the lead-added core rods (310) are uniformly distributed around the hinge shaft and are used for limiting the relative rotation of the mounting plate (230) and the frame (300).
8. The buckling restrained brace according to claim 7, wherein the leaded core bar (310) comprises a hollow steel tube jacket (311); a lead core (312) and a limiting steel block (313) are arranged inside the steel pipe sleeve (311); the lead core (312) is positioned in the middle of the steel pipe sleeve (311), and two ends of the lead core are respectively limited to move by the limiting steel block (313); the limiting steel block (313) is fixed with the steel pipe sleeve (311) through a positioning pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110284911.1A CN113152711A (en) | 2021-03-17 | 2021-03-17 | Buckling restrained brace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110284911.1A CN113152711A (en) | 2021-03-17 | 2021-03-17 | Buckling restrained brace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113152711A true CN113152711A (en) | 2021-07-23 |
Family
ID=76887414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110284911.1A Pending CN113152711A (en) | 2021-03-17 | 2021-03-17 | Buckling restrained brace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113152711A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060101733A1 (en) * | 2004-11-15 | 2006-05-18 | Chiao-Yu Jen | Buckling-restrained diagonal brace using lapping and improved plugging connection |
| US20080229683A1 (en) * | 2007-03-19 | 2008-09-25 | Pavel Bystricky | Buckling restrained brace for structural reinforcement and seismic energy dissipation and method of producing same |
| CN102535664A (en) * | 2010-12-29 | 2012-07-04 | 上海赛弗工程减震技术有限公司 | Novel support seismic energy dissipator |
| CN103195186A (en) * | 2013-04-11 | 2013-07-10 | 北京工业大学 | Steel pipe assembling steel structure prestressed buckling preventing support |
| CN104947826A (en) * | 2015-06-15 | 2015-09-30 | 王涛 | Self-reset buckling-restrained brace device |
| CN206368430U (en) * | 2016-12-09 | 2017-08-01 | 山东科技大学 | A kind of shock-absorbing type steel-frame structure |
| CN210712520U (en) * | 2019-07-15 | 2020-06-09 | 上海交通大学 | Assembled buckling-restrained brace device for improving anti-seismic performance of bridge |
-
2021
- 2021-03-17 CN CN202110284911.1A patent/CN113152711A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060101733A1 (en) * | 2004-11-15 | 2006-05-18 | Chiao-Yu Jen | Buckling-restrained diagonal brace using lapping and improved plugging connection |
| US20080229683A1 (en) * | 2007-03-19 | 2008-09-25 | Pavel Bystricky | Buckling restrained brace for structural reinforcement and seismic energy dissipation and method of producing same |
| CN102535664A (en) * | 2010-12-29 | 2012-07-04 | 上海赛弗工程减震技术有限公司 | Novel support seismic energy dissipator |
| CN103195186A (en) * | 2013-04-11 | 2013-07-10 | 北京工业大学 | Steel pipe assembling steel structure prestressed buckling preventing support |
| CN104947826A (en) * | 2015-06-15 | 2015-09-30 | 王涛 | Self-reset buckling-restrained brace device |
| CN206368430U (en) * | 2016-12-09 | 2017-08-01 | 山东科技大学 | A kind of shock-absorbing type steel-frame structure |
| CN210712520U (en) * | 2019-07-15 | 2020-06-09 | 上海交通大学 | Assembled buckling-restrained brace device for improving anti-seismic performance of bridge |
Non-Patent Citations (1)
| Title |
|---|
| 陈列，胡京涛: "《桥梁减隔震技术》", 30 November 2014, 中国铁道出版社 * |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210723 |
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| RJ01 | Rejection of invention patent application after publication |