CN109610667A - A kind of truss node plate type energy absorption brace - Google Patents
A kind of truss node plate type energy absorption brace Download PDFInfo
- Publication number
- CN109610667A CN109610667A CN201811522665.3A CN201811522665A CN109610667A CN 109610667 A CN109610667 A CN 109610667A CN 201811522665 A CN201811522665 A CN 201811522665A CN 109610667 A CN109610667 A CN 109610667A
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- friction
- plate
- support
- mainboard
- energy absorption
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of truss node plate type energy absorption braces, solve the problem of that the connectivity problem of current existing energy absorption brace and gusset plate solves rotation outside gusset plate generating surface and leads to sinker cisco unity malfunction to reach.The energy absorption brace includes: friction energy dissipation device, support, end plate, bolt, gusset plate.The friction energy dissipation device and support pass through end-plate bolted connections.Under small shake, structure provides lateral rigidity based on the energy absorption brace；Under big shake, the friction energy dissipation device is slided along axis of support direction, and friction energy-dissipating occurs, and reduces geological process, achievees the purpose that protect main structure.The friction energy dissipation device is spliced by bolt, and simple structure is easy for construction.Energy-dissipating support of the invention under geological process, is not degenerated by intensity, and is not destroyed, and the friction material for checking, replacing sinker is only needed after shake, has the advantages that rehabilitation expense is low, timely uses after shake.
Description
Technical field
The invention belongs to civil engineering energy-dissipating and shock-absorbing technical fields, and in particular to one kind have shake after can quickly prosthetic and
Pass through the energy absorption brace for the earthquake energy that rubs.
Background technique
Truss node plate type support is widely used in steel frame or concrete frame, in earthquake, by support stretch and
Compression, beam and column form plastic hinge and carry out earthquake energy.These deformation be all it is irreversible, weaken the safety of structure, and
And the reparation difficulty after shaking is larger.Weaken the geological process of main structure by introducing sinker in the structure, is demonstrate,proved
Bright is a kind of effective method.Wherein friction energy dissipation device simple structure, it is easy for construction, and be widely used in works.So
And gusset plate constrains working performance of the friction energy dissipation device in truss node plate type support there are rotating outside face, so as to cause energy dissipating
Damping effect reduces.
Summary of the invention
According to the above problem, the present invention passes through the gusset plate that will open long hole as friction mainboard, and the effect of contraction of cover board has
It limits to effect outside the face of gusset plate and rotates, and reduce the Joining Technology of sinker and gusset plate.
Technical solution of the present invention:
A kind of truss node plate type energy absorption brace, including friction energy dissipation device, support 10, gusset plate 11, end plate 5, bolt 9；
The friction energy dissipation device is mounted on the lower surface of support 10, including friction mainboard 1, friction plate 2, cover board 3, connection
Plate 4 and end plate 5；The friction mainboard 1 is the remaining shape after rectangular one jiao of truncation, is provided with sliding groove thereon；It is described
The upper and lower surface of friction mainboard 1 friction plate 2 is installed, friction plate 2 is externally provided with cover board 3, is provided with circle on friction plate 2 and cover board 3
Hole, circular hole position are corresponding with the sliding groove location on friction mainboard 1；Rub mainboard 1, friction plate 2 and cover board 3, and three passes through
Disk spring 7, nut 8 and bolt 9 cooperate fixed bit integral structure；The notch phase of 4 position of connecting plate and friction mainboard 1
Right, there are gaps between the two；Circular hole is provided on the connecting plate 4, friction plate 2, cover board 3 and connecting plate 4 pass through nut 8 and spiral shell
Bolt 9 cooperates fixed bit integral structure；The connecting plate 4 is fixedly connected with end plate 5, and the cover board 3 of 4 side of connecting plate, which is equipped with, to be stepped up
Rib 6；
10 one end of the support are fixed on 11 inner surface of gusset plate, and the other end is fixedly connected with end plate 5；Support 10 ends
End plate 5 is fixedly connected with the end plate 5 of friction energy dissipation device end.
The good materials of frictional behaviours such as brass friction plate, brake block can be selected in the friction plate 2.
The fashioned iron such as square steel tube, H profile steel, round steel pipe can be selected in the section of the support 10.
Support 10 and the connection of friction energy dissipation device can also be connected other than of the present invention be bolted using pin
It connects, solder design.
The upper end of support 10 and gusset plate 11 support 10 upper end cutting elongated groove mouths, gusset plate 11 by the way of being welded to connect
It is inserted into long rabbet, uses solder design in contact position.
At the friction energy dissipation device, disk spring 7 is respectively used below the nut and nut of bolt, to meet slipping
Middle bolt 9 loosens caused Deformation Demands, the purpose for keeping 9 pretightning force of bolt not lose.
The friction mainboard 1 of the friction energy dissipation device is directly opened sliding groove by gusset plate 11 and is realized, the direction of sliding groove is flat
Row is in axis of support.The Joining Technology for reducing friction energy dissipation device Yu gusset plate 11, has saved material.Cover board 3 is to gusset plate 11
Distortion is played, the out-of-plane deformation of restraint joint plate 11 reduces the influence that additional bending moment slides friction energy dissipation device.
It is worked stage by stage by adjusting slip-load realization.Under small shake, the energy absorption brace is not slid, for knot
Structure provides lateral rigidity；Under big shake, sliding friction earthquake energy occurs for energy absorption brace.
It can quickly prosthetic and protection main structure safety after shake.The friction material of friction energy dissipation device need to be only removed after shake
It checked, replaced.
Beneficial effects of the present invention: friction energy dissipation device of the invention is spliced by bolt, simple structure, construction party
Just.Energy-dissipating support of the invention under geological process, is not degenerated by intensity, and is not destroyed, and is only needed to check after shake, be replaced
The friction material of sinker has the advantages that rehabilitation expense is low, timely uses after shake.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is friction 1 structural schematic diagram of mainboard.
Fig. 3 is friction material 2 and 3 structural schematic diagram of cover board.
Fig. 4 is 6 structural schematic diagram of ribbed stiffener.
Fig. 5 is 4 structural schematic diagram of connecting plate.
Fig. 6 is 5 structural schematic diagram of end plate of support with sinker.
Fig. 7 is the hysteresis loop of energy absorption brace.
Fig. 8 is the hysteresis loop of common support.
In figure: 1 friction mainboard；2 friction plates；3 cover boards；4 connecting plates；5 end plates；6 step up rib；7 disk springs；8 nuts；9
Bolt；10 supports；11 gusset plates.
Specific embodiment
With reference to the accompanying drawing and technical solution, a specific embodiment of the invention is further illustrated.
Truss node plate type energy absorption brace of the invention includes friction energy dissipation device, support 10, end plate 5, gusset plate 11.It is described
Support 10 lower end welded end plates 5.Friction energy dissipation device upper end welded end plate 5, and ribbed stiffener 6 is set.It supports end plate 5 and rubs
Sinker end plate 5 is wiped to be bolted.Size circle identical with position is provided on the support end plate 5 and sinker end plate 5
Shape bolt hole.
The friction energy dissipation device is mainly by friction mainboard 1, friction plate 2, cover board 3, connecting plate 4, end plate 5, ribbed stiffener 6, dish
Shape spring 7, nut 8, high-strength bolt 9 form.Splicing sequence from top to bottom are as follows: cover board 3, friction plate 2, friction mainboard 1 and company
Fishplate bar 4, friction plate 2, cover board 3.The friction mainboard 1 is realized by the way that gusset plate 11 is opened double long hole, and the axis of long hole
Line direction is parallel with the axis direction of support 10.Friction plate 1, connecting plate 4, cover board 2 are provided with circular bolt holes.2 He of friction plate
Cover board 3 is provided on the position and friction mainboard 1 of six bolts hole that be provided with double stay bolt hole site corresponding, and is located at stay bolt
The center in hole, to guarantee that forward and reverse sliding displacement is equal in sliding.Friction mainboard 1, friction plate 2, cover board 3 pass through height
Strength bolt 9 connects, and respectively puts butterfly spring washer 7 below the nut of high-strength bolt 9 and nut 8.The connecting plate 4 rubs
Pad 2, cover board 3 are bolted.Connecting plate 4 and 5 vertical welding of end plate, and ribbed stiffener 6 is set, the section of ribbed stiffener 6
Shape is quadrangle, and the height of most short side is higher by 3 plane of cover board.
In the present invention, there are gap between the friction mainboard 1 and connecting plate 4, distance is greater than the displacement of sliding.It is long
Cover board 3 and 2 end of friction plate near hole should also have enough spaces to guarantee that normal slip works.Between cover board 3 and end plate 4
There are gaps, in case weld seam influences assembly.
About support 10, the fashioned iron such as square steel tube, H profile steel, I-steel, round steel pipe may be selected.The present invention is by taking square steel tube as an example.
Support 10 with the connection of friction energy dissipation device in addition to of the present invention be bolted other than, also may be selected pin connect,
Solder design.
The good materials of stable friction performances, rotproofness such as latten(-tin), brake block or macromolecule can be selected in the material of friction plate 2
Material.And gap of the friction material between friction mainboard 1 and connecting plate 4 can disconnect, and can guarantee that sinker works normally and slide
Move friction.It and in non-model control area is in order to consistent at a distance from guaranteeing cover board between friction mainboard using friction material.It is no
Then there may be eccentric bending moments, influence the normal work of friction energy dissipation device.
Different slip-loads can be selected according to the fortification intensity of different regions.Under small shake, truss node plate type friction disappears
It can support and not slide, be equivalent to common support, provide lateral rigidity for structure；And under big shake, after having reached sliding load,
Sliding friction energy consumption occurs for friction damped braced, and most of energy of earthquake is consumed by energy absorption brace, to reduce
The geological process of main structure, the effective protection safety of main structure.The hysteresis that Fig. 7 show energy absorption brace is bent
Line, in the whole process, the bearing capacity and rigidity of energy absorption brace without reduction, support harmless.Fig. 8 show common branch
Apparent bearing capacity and Stiffness Deterioration has occurred in the hysteresis loop of support, support.And after shake, friction energy dissipation device only need to be dismantled, is examined
Look into whether friction material needs replacing.Checked after shake or repair process in, it is easy to operate, the period is short, can timely use.
Claims (5)
1. a kind of truss node plate type energy absorption brace, which is characterized in that the truss node plate type energy absorption brace includes friction
Sinker, support (10), gusset plate (11), end plate (5), bolt (9)；
The friction energy dissipation device is mounted on the lower surface of support (10), including friction mainboard (1), friction plate (2), cover board (3),
Connecting plate (4) and end plate (5)；The friction mainboard (1) is the remaining shape after rectangular one jiao of truncation, is provided with cunning thereon
Dynamic slot；The upper and lower surface of the friction mainboard (1) is equipped with friction plate (2), and friction plate (2) is externally provided with cover board (3), friction plate
(2) and on cover board (3) it is provided with circular hole, circular hole position is corresponding with the sliding groove location in friction mainboard (1)；Friction mainboard (1),
Friction plate (2) and cover board (3), three cooperate fixed bit integral structure by disk spring (7), nut (8) and bolt (9)；Institute
Connecting plate (4) position stated is opposite with the friction notch of mainboard (1), and there are gaps between the two；It is provided on the connecting plate (4)
Circular hole, friction plate (2), cover board (3) and connecting plate (4) cooperate fixed bit integral structure by nut (8) and bolt (9)；It is described
Connecting plate (4) be fixedly connected with end plate (5), the cover board (3) of connecting plate (4) side, which is equipped with, steps up rib 6；
Described support (10) one end is fixed on gusset plate (11) inner surface, and the other end is fixedly connected with end plate (5)；Support (10) end
The end plate (5) in portion is fixedly connected with the end plate (5) of friction energy dissipation device end.
2. a kind of truss node plate type energy absorption brace according to claim 1, which is characterized in that the friction plate (2)
Select brass friction plate or brake block.
3. a kind of truss node plate type energy absorption brace according to claim 1 or 2, which is characterized in that the support
(10) square steel tube, H profile steel or round steel pipe are selected；The connection of (10) and friction energy dissipation device is supported in addition to being bolted, using pin
Connection or solder design；By the way of being welded to connect, length is opened in support (10) upper end for the upper end and gusset plate (11) for supporting (10)
Notch, gusset plate (11) are inserted into long rabbet, use solder design in contact position.
4. a kind of truss node plate type energy absorption brace according to claim 1 or 2, which is characterized in that the friction disappears
The friction mainboard (1) of energy device is directly opened sliding eye by gusset plate (11) and is realized, sliding eye is oriented parallel to axis of support.
5. a kind of truss node plate type energy absorption brace according to claim 3, which is characterized in that the friction energy dissipation device
Friction mainboard (1) sliding eye directly opened by gusset plate (11) realize that sliding eye is oriented parallel to axis of support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811522665.3A CN109610667A (en) | 2018-12-13 | 2018-12-13 | A kind of truss node plate type energy absorption brace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811522665.3A CN109610667A (en) | 2018-12-13 | 2018-12-13 | A kind of truss node plate type energy absorption brace |
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| Publication Number | Publication Date |
|---|---|
| CN109610667A true CN109610667A (en) | 2019-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811522665.3A Pending CN109610667A (en) | 2018-12-13 | 2018-12-13 | A kind of truss node plate type energy absorption brace |
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| CN (1) | CN109610667A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111098879A (en) * | 2019-12-31 | 2020-05-05 | 中南大学 | A mounting structure for radial extrusion deformation of thin wall pipe |
| CN112627340A (en) * | 2020-12-21 | 2021-04-09 | 同济大学 | Novel friction connection supports multiple post steel frame construction system that sways |
| CN113756465A (en) * | 2021-09-26 | 2021-12-07 | 四川大学 | Variable-rigidity friction damper |
| CN113798837A (en) * | 2021-10-11 | 2021-12-17 | 大连理工大学 | Bolt tightening method of friction device and friction device thereof |
| CN114232794A (en) * | 2021-12-10 | 2022-03-25 | 北京交通大学 | Self-resetting support assembly type friction connection node and performance design method thereof |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001227192A (en) * | 1999-06-30 | 2001-08-24 | Nippon Steel Corp | Axially yielding elasto-plastic hysteresis brace and damping steel structure |
| CN103088933A (en) * | 2013-01-17 | 2013-05-08 | 中南大学 | Collaborative energy dissipation anti-buckling supporting construction member with major earthquake protection function |
| WO2014039830A1 (en) * | 2012-09-06 | 2014-03-13 | Bluescope Buildings North America, Inc. | Buckling-restrained brace assembly |
| CN104912222A (en) * | 2015-05-13 | 2015-09-16 | 华南理工大学 | Double-gusset-plate clamping type buckling-restrained brace bolt and welding hybrid connecting node |
| CN105089171A (en) * | 2015-04-17 | 2015-11-25 | 华侨大学 | Intelligent reinforced concrete frame structure with self-adaptive energy-consuming mechanism |
| CN105155709A (en) * | 2015-08-06 | 2015-12-16 | 北京建筑大学 | Repair-free self-resetting friction energy-consuming support |
| US20160060888A1 (en) * | 2014-08-29 | 2016-03-03 | Lawrence D. Reaveley | Structural braces and related methods |
| CN105696719A (en) * | 2016-01-26 | 2016-06-22 | 大连理工大学 | Buckling restrained energy-consuming support structure restrained by adopting GFRP angle steel |
| CN105839968A (en) * | 2016-05-19 | 2016-08-10 | 华南理工大学 | Connecting node plate with sliding end plate for buckling-restrained brace |
| CN205444463U (en) * | 2016-03-29 | 2016-08-10 | 东华理工大学 | Damping wall based on steel structure beam and column mosaic structure |
| CN106285138A (en) * | 2016-09-14 | 2017-01-04 | 东南大学 | A kind of self-centering system end connecting device |
| CN106593060A (en) * | 2017-02-06 | 2017-04-26 | 同济大学 | Novel buckling energy consumption support |
| CN206220249U (en) * | 2016-12-01 | 2017-06-06 | 中国电力工程顾问集团中南电力设计院有限公司 | A kind of anti-buckling support layout pattern in back-to-back valve Room of flexible direct current |
| CN107514068A (en) * | 2017-08-29 | 2017-12-26 | 同济大学 | Double ranks surrender energy dissipating bracing members |
| CN107893563A (en) * | 2017-11-16 | 2018-04-10 | 山东大学 | Assembled Self-resetting energy dissipation brace device |
| CN107939137A (en) * | 2017-12-27 | 2018-04-20 | 华侨大学 | A kind of marmem piezoelectric friction damper device |
| CN108149812A (en) * | 2018-01-30 | 2018-06-12 | 华北理工大学 | A kind of damper and the anti-shock methods of assembled anti-knock frame structure and building |
| CN108571067A (en) * | 2018-04-10 | 2018-09-25 | 东南大学 | A kind of assembled Self-resetting prestressed concrete frame friction energy-dissipating combined joint |
| CN108678508A (en) * | 2018-07-02 | 2018-10-19 | 沈阳建筑大学 | The I-shaped energy consumption connector of Coupled Shear Wall structure |
-
2018
- 2018-12-13 CN CN201811522665.3A patent/CN109610667A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001227192A (en) * | 1999-06-30 | 2001-08-24 | Nippon Steel Corp | Axially yielding elasto-plastic hysteresis brace and damping steel structure |
| WO2014039830A1 (en) * | 2012-09-06 | 2014-03-13 | Bluescope Buildings North America, Inc. | Buckling-restrained brace assembly |
| CN103088933A (en) * | 2013-01-17 | 2013-05-08 | 中南大学 | Collaborative energy dissipation anti-buckling supporting construction member with major earthquake protection function |
| US20160060888A1 (en) * | 2014-08-29 | 2016-03-03 | Lawrence D. Reaveley | Structural braces and related methods |
| CN105089171A (en) * | 2015-04-17 | 2015-11-25 | 华侨大学 | Intelligent reinforced concrete frame structure with self-adaptive energy-consuming mechanism |
| CN104912222A (en) * | 2015-05-13 | 2015-09-16 | 华南理工大学 | Double-gusset-plate clamping type buckling-restrained brace bolt and welding hybrid connecting node |
| CN105155709A (en) * | 2015-08-06 | 2015-12-16 | 北京建筑大学 | Repair-free self-resetting friction energy-consuming support |
| CN105696719A (en) * | 2016-01-26 | 2016-06-22 | 大连理工大学 | Buckling restrained energy-consuming support structure restrained by adopting GFRP angle steel |
| CN205444463U (en) * | 2016-03-29 | 2016-08-10 | 东华理工大学 | Damping wall based on steel structure beam and column mosaic structure |
| CN105839968A (en) * | 2016-05-19 | 2016-08-10 | 华南理工大学 | Connecting node plate with sliding end plate for buckling-restrained brace |
| CN106285138A (en) * | 2016-09-14 | 2017-01-04 | 东南大学 | A kind of self-centering system end connecting device |
| CN206220249U (en) * | 2016-12-01 | 2017-06-06 | 中国电力工程顾问集团中南电力设计院有限公司 | A kind of anti-buckling support layout pattern in back-to-back valve Room of flexible direct current |
| CN106593060A (en) * | 2017-02-06 | 2017-04-26 | 同济大学 | Novel buckling energy consumption support |
| CN107514068A (en) * | 2017-08-29 | 2017-12-26 | 同济大学 | Double ranks surrender energy dissipating bracing members |
| CN107893563A (en) * | 2017-11-16 | 2018-04-10 | 山东大学 | Assembled Self-resetting energy dissipation brace device |
| CN107939137A (en) * | 2017-12-27 | 2018-04-20 | 华侨大学 | A kind of marmem piezoelectric friction damper device |
| CN108149812A (en) * | 2018-01-30 | 2018-06-12 | 华北理工大学 | A kind of damper and the anti-shock methods of assembled anti-knock frame structure and building |
| CN108571067A (en) * | 2018-04-10 | 2018-09-25 | 东南大学 | A kind of assembled Self-resetting prestressed concrete frame friction energy-dissipating combined joint |
| CN108678508A (en) * | 2018-07-02 | 2018-10-19 | 沈阳建筑大学 | The I-shaped energy consumption connector of Coupled Shear Wall structure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111098879A (en) * | 2019-12-31 | 2020-05-05 | 中南大学 | A mounting structure for radial extrusion deformation of thin wall pipe |
| CN112627340A (en) * | 2020-12-21 | 2021-04-09 | 同济大学 | Novel friction connection supports multiple post steel frame construction system that sways |
| CN112627340B (en) * | 2020-12-21 | 2022-04-08 | 同济大学 | Novel friction connection supports multiple post steel frame construction system that sways |
| CN113756465A (en) * | 2021-09-26 | 2021-12-07 | 四川大学 | Variable-rigidity friction damper |
| CN113798837A (en) * | 2021-10-11 | 2021-12-17 | 大连理工大学 | Bolt tightening method of friction device and friction device thereof |
| CN114232794A (en) * | 2021-12-10 | 2022-03-25 | 北京交通大学 | Self-resetting support assembly type friction connection node and performance design method thereof |
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Application publication date: 20190412 |