CN105507445B - Outer tube constraint folds steel plate energy dissipation brace - Google Patents
Outer tube constraint folds steel plate energy dissipation brace Download PDFInfo
- Publication number
- CN105507445B CN105507445B CN201610029327.0A CN201610029327A CN105507445B CN 105507445 B CN105507445 B CN 105507445B CN 201610029327 A CN201610029327 A CN 201610029327A CN 105507445 B CN105507445 B CN 105507445B
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- Prior art keywords
- outer tube
- plate
- core cylinder
- energy dissipation
- steel plate
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
It is constrained the invention discloses a kind of outer tube and folds steel plate energy dissipation brace, including outer tube, the core cylinder being arranged in the outer tube, the end bearing plate for being arranged on the core cylinder both sides nozzle, the outer tube sealing plate for being arranged on outer tube both side ends, the cruciform gusset plate across outer tube sealing plate is connected on the end bearing plate, the core cylinder is connected in sequence by multiple energy consumption units.The seismic response of the invention that building is reduced using energy dissipation capacity after its good surrender, is made simply, is easily installed, and is applicable to earthquake-resistant structure aspect, effectively earthquake disaster mitigation.
Description
Technical field
The invention belongs to building structure energy dissipation brace fields, are related to a kind of outer tube constraint and fold steel plate energy dissipation brace.
Background technology
Earthquake disaster have it is sudden and crushing, threaten the safety of human life's property.For building, due to building
It is excessive to build object earthquake response, building is caused to occur losing the phenomenon that it uses function, serious destruction or even collapses.To reduce ground
The disaster brought is shaken, energy-dissipating and shock-absorbing technology is widely used in structure design.Wherein, the exploitation and application of buckling restrained brace
It is exactly a representative technology.
Buckling restrained brace is mainly made of the part such as core plate, outer tube, non-cohesive material.It will based on core plate in the technology
Stress unit, core plate deforms and consumes the energy that earthquake is inputted under geological process, so as to reach protection main body frame
Purpose.For outer tube by the constraint to core plate, preventing core plate from generating lateral buckling influences its energy consumption effect.
However current buckling-restrained energy dissipation brace plastic hinge appearance is less, can not play the energy consumption energy of monoblock core plate
Power is unable to control the yield point position of core plate, is unable to control the quantity of plastic hinge appearance, this allows for the energy consumption entirely supported
Accurate control can not be realized, so as to get a desired effect.
Invention content
Technical problem：Present invention offer is a kind of to replace core plate as main stress structure by the use of the core cylinder for folding steel plate formation
Part reduces the seismic response of building using energy dissipation capacity after its good surrender, makes simply, is easily installed, can apply
In terms of earthquake-resistant structure, the effectively outer tube constraint of earthquake disaster mitigation folds steel plate energy dissipation brace.
Technical solution：The outer tube constraint of the present invention folds steel plate energy dissipation brace and includes outer tube, is arranged on the housing
Core cylinder in pipe, the end bearing plate for being arranged on the core cylinder both sides nozzle, the outer tube envelope for being arranged on outer tube both side ends
Plate, is connected with the cruciform gusset plate across outer tube sealing plate on the end bearing plate, the core cylinder by multiple energy consumption units according to
Secondary to be formed by connecting, the energy consumption unit includes 4n antarafacial triangle, and wherein 2n are first kind triangle, and 2n are the second class
Triangle, the connection setting of each two first kind vertex angle form a grouping, the connection of the second class of each two triangle base
Setting, forms a grouping, and the grouping of first kind triangle is grouped adjacent connection with the second class triangle, is spliced into a tubular structure
Part, n are the energy consumption polygon side shape number of edges in unit end face, and n >=3.
Further, in the present invention, " ten " font seam corresponding with cruciform gusset plate is provided on the outer tube sealing plate.
Further, in the present invention, the size of the end bearing plate is identical with the nozzle size of core cylinder.
Further, in the present invention, there is gap between the outer sleeve inner wall and core cylinder, wherein filled with soap-free emulsion polymeization material
Material.
Further, in the present invention, vertical ribbed stiffener is welded on the cruciform gusset plate.
Fold steel plate energy dissipation brace makes it folding line occur steel plate by the way of punching press, is equivalent to and is introduced among steel plate
Initial imperfection, and then the position for plastic hinge occur can be controlled, plastic hinge is made to appear near folding line, control can also be passed through
The quantity of folding line controls the quantity of plastic hinge.Then the steel plate after punching press is welded into tubular, while increases stabilization
Property, it is not susceptible to out-of-plane buckling.
Steel plate energy dissipation brace is folded by core cylinder, outer tube, end bearing plate, outer tube sealing plate, cruciform gusset plate, soap-free emulsion polymeization
Material, ribbed stiffener are formed；Its core cylinder is to become tubular by punch welding by general steel plate, and folded section is by dimensioning
Very little identical energy consumption unit composition.And energy consumption cell cube four sides, using identical folding line, structural form is relatively easy, makes
It is convenient；End bearing plate is connected with core cylinder, cruciform gusset plate, and load is uniformly passed to core cylinder.Outer tube limitation energy consumption section
There is excessive deformation at folding line and influence the energy-dissipating property entirely supported.Outer tube sealing plate limits the position of outer tube, cross
Gusset plate passes therethrough, and core cylinder with frame is linked together, ribbed stiffener is welded on cruciform gusset plate, prevents cross node
Plate compressive buckling.
The outer tube constraint of the present invention folds steel plate energy dissipation brace, is made of seven parts, respectively outer tube, end pressure-bearing
Plate, core cylinder, cruciform gusset plate, outer tube sealing plate, non-cohesive material, ribbed stiffener.
Its core be core cylinder, core cylinder embodied a concentrated reflection of invention design principle, and when n=4 for illustrate.
The core cylinder is that steel plate is formed by punch welding as shown in Fig. 14, can be formed by a kind of by punching press or
The energy consumption unit that a variety of simple geometry figures are formed, tubular is formed using welding, as shown in fig. 6, to ensure good consumption
Energy ability, just with processing, preferentially using mild steel, Q235 or high performance steel, steel plate thickness used is not preferably greater than steel used
50mm。
The outer tube as shown in Fig. 11, is preferentially made of steel, can is round steel pipe, square steel tube, preferentially be used
Existing steel pipe specification in the market.
The outer tube sealing plate uses the material identical with outer tube, and plate thickness is about 1.5-2.0 times of housing tube thickness, welding
In outer tube both ends, as shown in Fig. 12, diameter is identical with housing pipe outside diameter.
The non-cohesive material is set between core cylinder and outer tube, and as shown in Fig. 16, non-cohesive material is 2mm thickness
Layer of silica gel, for weakening the friction between outer tube and core cylinder.
The end bearing plate is set to core cylinder both ends, is that high strength steel plate is cut into and consumed energy as shown in Fig. 13
The hexahedron of unit side-anastomosis is welded in core cylinder both ends.
The cruciform gusset plate as shown in Fig. 15, using the steel identical with end bearing plate, is welded in end pressure-bearing
On plate.
The ribbed stiffener as shown in Fig. 17, shares four, and per pass is all made of four identical triangular steel plates,
It is welded on cruciform gusset plate.
Advantageous effect：Compared with prior art, the present invention it has the following advantages：
Existing buckling restrained brace limits the buckling of its core plate using outer tube, is unable to control core plate and plastic hinge occurs
Position and quantity so that ideal effect is not achieved in the energy dissipation capacity of existing buckling restrained brace.Creative in the present invention
Core cylinder is introduced, and outer tube is set outside core cylinder so that core cylinder cooperates with outer tube, when core cylinder bearing load and housing
When pipe contacts, using contacting with each other for outer tube and core cylinder, the rigidity of increase core cylinder improves its ultimate bearing capacity, while may be used also
To improve the hysteretic energy performance of core cylinder, so as to preferably consume the energy that earthquake inputs building in earthquake.
Using triangle folding line, folding line form is succinct for the side of the core cylinder, is convenient for punching press making, is bearing earthquake
During effect, the xial feed that is mainly transmitted by building frame, which can be pulling force, or pressure,
When it is by load action, stretching or compressive deformation can occur so that the core cylinder slides in outer tube, and outer tube is to core
Cylinder generates effect of contraction, prevents core cylinder from out-of-plane buckling occurs, it is made stretching or compression can only to occur in its length direction, to ensure
Its energy-dissipating property.
In the present invention, outer tube constraint folds steel plate energy dissipation brace and is changed to the core plate in existing buckling restrained brace
The core cylinder formed by folding steel plate, optimizes its Energy Dissipation Mechanism, increases its hysteretic energy ability under low cycling loads, passes through
Punching press plain plate makes steel plate a series of triangle folding lines occur, thus the core cylinder is extensible, and folding line, which is equivalent to, artificially to be drawn
Enter defect, this is made to be supported at folding line and plastic hinge absorption energy occurs, while can also be controlled by controlling the quantity of folding line
The number that plastic hinge (line) occurs, makes it have good plasticity distribution, and core cylinder can realize that plastic hinge occurs in many places folding line, increase
The energy dissipation capacity of support, and occur to bend when being welded with ribbed stiffener on the cruciform gusset plate of the support to prevent its compression
It is bent.
The present invention generates pre- folding line by folding steel plate, can generate yield line at folding line in bearing load, profit
Increase the energy dissipation capacity of the support with yield line, while in the external setting casing of core cylinder, improve to core cylinder it is circumferential about
Beam, convenient for improving the rigidity of the support and ultimate bearing capacity.The support processing and fabricating is simple, easy for installation, has good anti-
Shake ability and energy dissipation capacity are a kind of outstanding energy dissipation components.
Description of the drawings
Fig. 1 is folds steel plate energy dissipation brace structural map.
Fig. 2 is the outer tube sealing plate both sides detail of construction
Fig. 3 is core cylinder inner member connection figure
Fig. 4 is Section A-A structural map
Fig. 5 is outer tube sealing plate
Fig. 6 is energy consumption unit module structural map, and wherein Fig. 6 a are energy consumption unit axonometric drawing, and Fig. 6 b are energy consumption unit left view
Figure, Fig. 6 c are energy consumption unit front view
Fig. 7 folds schematic diagram for energy consumption unit, and wherein dotted line is dent
Fig. 8 is energy consumption cell node coordinate schematic diagram.
Fig. 9 is energy consumption unit size schematic diagram, and wherein Fig. 9 a are projection of the unit to YZ faces of consuming energy, and Fig. 9 b is form the list
One in the congruent triangles of member.
Have in figure：1. outer tube, 2. outer tube sealing plates, 3. end bearing plates, 4. core cylinders, 5. cruciform gusset plates, 6. without viscous
Tie material, 7. ribbed stiffeners.
Specific embodiment
With reference to embodiment and Figure of description, the present invention is further illustrated.
Embodiment 1
For below figure 1 to shown in Fig. 6, the present invention is by outer tube 1, outer tube sealing plate 2, end bearing plate 3, core cylinder 4, cross
Gusset plate 5, non-cohesive material 6,7 seven part of ribbed stiffener are formed.Core cylinder 4 is different simple several by being stamped and formed out by steel plate
What figure, then carries out being welded to tubular.As shown in fig. 6, in the present embodiment, the geometric figure on core cylinder 4 is isosceles three
Angular combination.Fig. 7 is the folding line pattern in the embodiment, and wherein dotted line is dent, and then both ends are welded.Such as figure
Shown in 2, what is be connected with core cylinder 4 is end bearing plate 3, and end bearing plate 3 is welded in 4 nozzle of core cylinder, four side, and end bearing plate 3
Size is identical with 4 nozzle size of core cylinder.Bearing plate 3 opposite side in end is welded with cruciform gusset plate 5, and cruciform gusset plate 5 passes through outer
Casing sealing plate 2 is connect with the structural framing of building, and twice ribbed stiffener 7 is set on cruciform gusset plate, which is four
Triangular steel plate is welded on cruciform gusset plate.As shown in figure 5, " ten " font seam is provided on outer tube sealing plate 2, in order to ten
Byte contact plate 5 passes through.Outer tube sealing plate 2 is attached with outer tube 1 using welding form, and 1 inner wall of outer tube is kept with core cylinder 4
A certain distance.On 1 inner wall of outer tube layer of silica gel, thickness 2mm are used covered with non-cohesive material, the non-cohesive material.
Embodiment 2
The present embodiment is identical with 1 rest part of embodiment, the difference is that 1 pipe of outer tube is changed to square tube to provide about
Beam.
In order to more clearly from express the space of subelement construction, the seat that rectangular coordinate system in space illustrates each node is established
Mark as shown in figure 8, coordinate origin O is the center of subelement, makees X-axis, from F with straight line where the diagonal FH of quadrangle EFGH
Direction H is positive direction, makees Z axis with straight line where another diagonal EG of the quadrangle, and it is positive direction to be directed toward G by E, to cross point O
And the straight line vertical with X-axis, Z axis, as Y-axis, positive direction is to be directed toward face IJKL. from face ABCD
Energy consumption unit size will meet following condition, and (θ is the dihedral angle of △ DCG and △ LKG, and α is △ DCG and the folder in XY faces
Angle, a are the length of side of square ABCD, and b is the catercorner length of square EFGH, and c is any one isosceles for forming subelement
The length of the waist of triangle, d are the height on the isosceles triangle base, and l is projected length of the subelement along Y direction)：
Each node coordinate is：
Above-described embodiment is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill of the art
For personnel, without departing from the principle of the present invention, several improvement and equivalent replacement can also be made, these are to the present invention
Claim be improved with the technical solution after equivalent replacement, each fall within protection scope of the present invention.
Claims (5)
1. a kind of outer tube constraint folds steel plate energy dissipation brace, which is characterized in that the energy dissipation brace includes outer tube (1), setting
Core cylinder (4) in the outer tube (1), the end bearing plate (3) for being arranged on core cylinder (4) both sides nozzle, be arranged on it is outer
The outer tube sealing plate (2) of casing (1) both side ends is connected with ten across outer tube sealing plate (2) on the end bearing plate (3)
Byte contact plate (5), the core cylinder (4) are connected in sequence by multiple energy consumption units, and the energy consumption unit includes 4n antarafacial three
Angular, wherein 2n are first kind triangle, and 2n are the second class triangle, and the connection of each two first kind vertex angle is set
It puts, forms a grouping, the connection setting of the second class of each two triangle base forms a grouping, the grouping of first kind triangle
Adjacent connection is grouped with the second class triangle, is spliced into a cylindrical member, n is energy consumption unit end face polygon edge number, and n >=
3。
2. outer tube constraint according to claim 1 folds steel plate energy dissipation brace, which is characterized in that the outer tube sealing plate
(2) " ten " corresponding with cruciform gusset plate (5) font seam is provided on.
3. outer tube constraint according to claim 1 or 2 folds steel plate energy dissipation brace, which is characterized in that holds the end
The size of pressing plate (3) is identical with the nozzle size of core cylinder (4).
4. outer tube constraint according to claim 1 or 2 folds steel plate energy dissipation brace, which is characterized in that the outer tube
(1) there is gap between inner wall and core cylinder (4), wherein filled with non-cohesive material (6).
5. outer tube constraint according to claim 1 or 2 folds steel plate energy dissipation brace, which is characterized in that the crossed joint
Vertical ribbed stiffener (7) is welded in contact plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610029327.0A CN105507445B (en) | 2016-01-15 | 2016-01-15 | Outer tube constraint folds steel plate energy dissipation brace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610029327.0A CN105507445B (en) | 2016-01-15 | 2016-01-15 | Outer tube constraint folds steel plate energy dissipation brace |
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| Publication Number | Publication Date |
|---|---|
| CN105507445A CN105507445A (en) | 2016-04-20 |
| CN105507445B true CN105507445B (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610029327.0A Active CN105507445B (en) | 2016-01-15 | 2016-01-15 | Outer tube constraint folds steel plate energy dissipation brace |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971355B (en) * | 2016-06-01 | 2018-10-26 | 东南大学 | A kind of casing constraining anti-buckling support with brilliant energy consumption unit |
| CN106049699B (en) * | 2016-06-01 | 2018-08-21 | 东南大学 | A kind of casing constraining anti-buckling support with staggeredly pyramid energy consumption unit |
| CN105926795B (en) * | 2016-06-01 | 2018-03-16 | 东南大学 | A kind of sleeve pipe constraining anti-buckling support with symmetrical initial imperfection |
| CN106049952B (en) * | 2016-06-01 | 2018-08-21 | 东南大学 | A kind of end has the buckling control support of duplex pyramid type energy consumption unit |
| CN105839973B (en) * | 2016-06-01 | 2018-07-27 | 东南大学 | A kind of end has the buckling control support of staggeredly pyramid energy consumption unit |
| CN106049954B (en) * | 2016-06-01 | 2019-01-08 | 东南大学 | A kind of casing constraining anti-buckling support with duplex pyramid type energy consumption unit |
| CN105888348B (en) * | 2016-06-01 | 2018-07-27 | 东南大学 | A kind of end has the buckling control support of brilliant energy consumption unit |
| CN106639461B (en) * | 2016-11-15 | 2018-11-27 | 东南大学 | A kind of casing buckling induction support with elongated degree four folding line types induction unit |
| CN112942613B (en) * | 2021-02-05 | 2022-09-16 | 重庆大学 | Quick-repairing buckling-restrained energy-dissipation supporting structure in earthquake-stricken area |
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| CN102505772A (en) * | 2011-12-23 | 2012-06-20 | 卢锐 | Buckling restrained energy-consumption supporting device of building frame structure |
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| JP3197228U (en) * | 2015-02-13 | 2015-04-30 | 日大工業株式会社 | Cushion material and corner cushion using the same |
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| CN205329890U (en) * | 2016-01-15 | 2016-06-22 | 东南大学 | Outer tube restraint folding steel plate energy dissipation brace |
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Patent Citations (7)
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|---|---|---|---|---|
| CN102505772A (en) * | 2011-12-23 | 2012-06-20 | 卢锐 | Buckling restrained energy-consumption supporting device of building frame structure |
| CN104018593A (en) * | 2013-03-01 | 2014-09-03 | 周中哲 | Double-core prestress stretching self-resetting buckling restrained brace damping device |
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| CN105507445A (en) | 2016-04-20 |
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