CN106760008B - A kind of end has the buckling induction support of circumferential trapezoidal induction unit - Google Patents
A kind of end has the buckling induction support of circumferential trapezoidal induction unit Download PDFInfo
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- CN106760008B CN106760008B CN201611029835.5A CN201611029835A CN106760008B CN 106760008 B CN106760008 B CN 106760008B CN 201611029835 A CN201611029835 A CN 201611029835A CN 106760008 B CN106760008 B CN 106760008B
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- equicrural ladder
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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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- 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)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The invention discloses a kind of ends, and there is the buckling of circumferential trapezoidal induction unit to induce support, including confinement section and energy consumption section, it further include a support flat segments, the setting of energy consumption section is made of at least one circumferential trapezoidal induction unit along the axis direction of support in the support flat segments both ends, the section that consumes energy；Circumferential trapezoidal induction unit is circumferentially arranged successively by m circumferential trapezoidal subelement and forms the space body that a section is polygon, and circumferential trapezoidal subelement is the space body for collinearly folding formation two-by-two by four pieces of equicrural ladder plates being in the same plane.Buckling induction support of the present invention, under small shake effect, the induction support of this buckling keeps elasticity, and in middle shake or big shake effect, buckling induction support enters yielding stage, and good hysteretic energy performance can play the effect of damper again.Compared with traditional buckling restrained brace, present invention decreases Contraction in Site workload, energy conservation and environmental protections.
Description
Technical field
The invention belongs to building structure technology fields, have bending for circumferential trapezoidal induction unit more particularly to a kind of end
Song induction support, suitable for steel construction or concrete structure with buckling restrained brace.
Background technique
In steel construction or reinforced concrete structure use process, common support compression can generate buckling phenomenon, work as branch
After supportting compressive buckling, rigidity and bearing capacity are drastically reduced.Under earthquake or wind action, the internal force of support is being pressurized and tension two
Back and forth change under kind state.When support gradually fades to tension state by the state of buckling, the internal force and rigidity of support are close to
Zero.Thus common support Hysteresis Behavior under course under cyclic loading is poor.To solve common support compressive buckling and hysteresis
Can difference problem, casing is set outside support, constrains the compressive buckling of support, constitute buckling restrained brace only core plate and other
Component connection, suffered load are all undertaken by core plate, and outer sleeve and packing material only constrain core plate compressive buckling, and core plate is made to exist
Tension and by pressure can enter surrender, thus, the Hysteresis Behavior of buckling restrained brace is excellent.Buckling restrained brace on the one hand can
It, can be on the other hand with the energy dissipation capacity of metal damper to avoid the defect of common support tension and compression bearing capacity significant difference
" fuse " is served as in the structure, so that main structure is substantially in elastic range.Therefore, the application of buckling restrained brace,
Anti-seismic performance of traditional braced frame under middle shake and big shake can be improved comprehensively.But traditional buckling restrained brace is usually adopted
With steel and coagulation local soil type at restraining tube, it is high to lead to make precision prescribed, from great and difficulty of construction is big, to core cell sheet
Body promotes it and is very limited with use scope there are larger additional load.
Applicant proposes a kind of buckling control of the end with duplex pyramid type energy consumption unit on June 1st, 2016
The buckling for supporting (application No. is 201610380805.2) and a kind of end to have staggeredly pyramid energy consumption unit controls support
The basic energy consumption unit of (application No. is 201610384216.1) is pyramid, pyramid energy consumption unit be it is non-rigid can
Exhibition；So buckling control support is larger by the difficulty of high-order buckling mode energy consumption.Applicant proposes one on June 1st, 2016
Kind end has the energy-dissipating type buckling restrained brace (application No. is 201610383430.5) and one kind of symmetrical initial imperfection unit
It is fixed that end, which has the geometric configuration of the buckling control support (application No. is 201610380804.8) of brilliant energy consumption unit,
, design flexibility is small.And construction, the plate thickness of unit at folding line etc. that consume energy in above-mentioned support is consistent at non-folding line, it is unfavorable
In the generation plastic hinge at folding line.
Summary of the invention
The technical problem to be solved by the present invention is in view of the deficiency of the prior art, and provide a kind of end tool
There is the energy-dissipating type buckling induction support of circumferential trapezoidal induction unit.The induction unit can induce support that high order mode occurs and bend
Clothes avoid support that complete buckling occurs to early, and circumferential trapezoidal induction unit has rigid folding effect, when making to be supported on stress
It is more easier that local buckling occurs, can more gives full play to the plastic property of unit, while the flat segments being connected with this element are again
It can guarantee the axial rigidity of support, there is good bearing capacity.
Technical solution: to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of end has the buckling induction support of circumferential trapezoidal induction unit, including confinement section and energy consumption section, feature
It is: further includes a support flat segments, the energy consumption section setting is at the support flat segments both ends, in the another of the energy consumption section
The end setting confinement section, energy consumption section are made of at least one circumferential trapezoidal induction unit along the axis direction of support；Institute
The trapezoidal induction unit of the circumferential direction stated circumferentially is arranged successively by m circumferential trapezoidal subelement and forms the sky that a section is polygon
Mesosome, the number of edges of the space body are 2m, and wherein m is the integer more than or equal to 3；The trapezoidal subelement of circumferential direction is by being located at
Four pieces of equicrural ladder plates in same plane collinearly fold the space body of formation two-by-two, four pieces of equicrural ladder plates conllinear and phase two-by-two
A vertex is met at, according to respectively equicrural ladder plate one, equicrural ladder plate two, equicrural ladder plate three and equicrural ladder plate counterclockwise
Four, wherein equicrural ladder plate one and equicrural ladder plate two, equicrural ladder plate two and equicrural ladder plate three and four and of equicrural ladder plate
The common edge of equicrural ladder plate one is crest line, and the common edge of equicrural ladder plate three and equicrural ladder plate four is valley line；Adjacent etc.
Waist trapezoidal plate is foldable outwardly along crest line, is folded inward along valley line；The outward folding refers to adjacent equicrural ladder plate
Angle between exterior normal becomes larger, and the angle being folded inward between the exterior normal for referring to adjacent equicrural ladder plate becomes smaller.
The end restraint section is made of regular polygon steel plate, the short girder steel of T-type and connecting plate, and regular polygon steel plate is welded on
Energy consumption section end, two short girder steels of T-type and regular polygon steel plate are welded to connect, and connecting plate is clipped among two short girder steels of T-type, even
Fishplate bar is connect with the short girder steel of T-type with high-strength bolt, and the number of edges of the steel plate is more than or equal to 3.
The support flat segments are made of the steel pipe that section is regular polygon and regular polygon steel plate, the weldering of regular polygon steel plate
It connects in the end of the steel pipe of equilateral polygon section, the section that consumes energy and regular polygon steel plate are welded to connect, the number of edges of the steel tube section
More than or equal to 3.
Energy consumption section hole-opening at all folding lines, described hole diameter are d, and d is equal to plate thickness；Adjacent holes it
Between distance be it is equal and be equal to 5 times of hole diameters.
The utility model has the advantages that
There is a kind of end of the present invention buckling of circumferential trapezoidal induction unit to induce support, by end restraint section, energy consumption section
It is constituted with support flat segments.Unit is induced using four folding line type of varied angle in support, there are more clear advantages: one, is circumferential
Trapezoidal subelement has rigid folding effect, is more easier that local buckling occurs when making to be supported on stress, to produce at folding line
Raw plastic hinge energy consumption.Two, using end there is the buckling of circumferential trapezoidal induction unit to induce support, configuration is simple, is suitable for square
The support of the various cross sectional shapes such as shape, circle, polygon.The circumferential trapezoidal subelement of composition is four pieces of congruent isosceles trapezoids,
Support manufacturing is very easy.Three, by changing, angle, adjustable support are axial between each folding line in circumferential trapezoidal subelement
The relationship of rigidity and energy dissipation capacity.Four, the induction unit is by the pre-set folding line formed by crest line and valley line, while
Punch mouth on folding line, is more easier induction and is supported under geological process, enables to occur at folding line biggish strain to form modeling
Property hinge line, achieve the purpose that dissipation seismic energy.Five, the support flat segments combined with buckling induction section, it is ensured that support
Required axial rigidity.The number of circumferential trapezoidal induction unit in section is induced by the length and buckling that change support flat segments,
The relationship of adjustable the axial rigidity supported and energy dissipation capacity.The present invention is avoided in manufacture craft in core energy consumption structure
Jacketed cylinder, the processes such as grouting between sleeve and core dissipative member, simplify processing and making process, reduce engineering outside part
Cost.And the present invention can only need the built-in fitting for using the components such as bolt and beam column to connect, both protect in factory process to scene
Component quality has been demonstrate,proved, and has reduced the wet construction workload at scene, energy conservation and environmental protection.End has bending for circumferential trapezoidal induction unit
Song induction support had both had many advantages, such as the flexible arrangement of general buckling restrained brace, good energy-dissipating property, and can be by pre-
The folding line being first arranged and the hole-opening on folding line, control the buckling form of support, prevent component from complete buckling occurs to early, simultaneously
Manufacturing procedure can effectively be simplified to avoid the processes such as sleeve and grouting are added outside core dissipative member, had good
Popularizing of A.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is end restraint section schematic diagram；
Fig. 3 is buckling section schematic diagram；
Fig. 4 is support flat segments schematic diagram；
Fig. 5 is square plate schematic diagram；
Fig. 6 is the short girder steel schematic diagram of T-type；
Fig. 7 is connecting plate schematic diagram；
Fig. 8 is circumferential trapezoidal induction cell schematics；
Fig. 9 is circumferential trapezoidal subelement schematic diagram；
Figure 10 is circumferential trapezoidal subelement floor map；
Figure 11 is hole floor map at folding line；
Figure 12 is A-A sectional view in Figure 11.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram for the buckling induction support that end has circumferential trapezoidal induction unit, by end restraint section
1, the section 2 that consumes energy and support flat segments 3 form, and end restraint section 1 is fixed between bean column node and energy consumption section 2, and energy consumption section 2 is fixed
At support 3 both ends of flat segments.
As shown in Fig. 2, the connecting plate 6 that end restraint section 1 is reserved by components such as square plate 4, the short girder steel 5 of T-type and beam columns
Composition, square plate 4 are welded on energy consumption 2 end of section, and the short girder steel 5 of two T-types is welded to connect with square plate 4,4 He of square plate
The short girder steel 5 of T-type is respectively as shown in Fig. 5,6.Connecting plate 6 is clipped among the short girder steel 5 of two T-types, and connecting plate 6 and the short girder steel 5 of T-type are used
High-strength bolt connection, wherein connecting plate 6 is as shown in Figure 7.
In Fig. 3, energy consumption section 2 is made of the trapezoidal induction unit 7 of four circumferential directions along the axis direction of support.As shown in figure 8,
It is octagonal sky that circumferential trapezoidal induction unit 7, which is circumferentially arranged successively by the trapezoidal subelement 8 of four circumferential directions and forms a section,
Mesosome.As shown in Figure 9, Figure 10, circumferential trapezoidal subelement 8 is conllinear two-by-two by four pieces of equicrural ladder plates and intersects at a vertex, presses
According to counterclockwise be respectively equicrural ladder plate 1, equicrural ladder plate 2 10, equicrural ladder plate 3 11 and equicrural ladder plate 4 12,
Middle equicrural ladder plate 1 and equicrural ladder plate 2 10, equicrural ladder plate 2 10 and equicrural ladder plate 3 11 and equicrural ladder plate four
12 and the common edge of equicrural ladder plate 1 be crest line 13, the common edge of equicrural ladder plate 3 11 and equicrural ladder plate 4 12 is paddy
Line 14.Adjacent equicrural ladder plate is foldable outwardly along crest line 13, is folded inward along valley line 14.Outward folding refers to adjacent
Angle between the exterior normal of equicrural ladder plate becomes larger, and the folder between the exterior normal for referring to adjacent equicrural ladder plate is folded inward
Angle becomes smaller.
As shown in figure 4, support flat segments 3 are made of the bracing members 15 and square plate 4 of square-section, square plate 4 is welded
It connects in the end of the bracing members 15 of square-section, the section 2 that consumes energy and square plate 4 are welded to connect.
As shown in Figure 11, Figure 12, equidistant hole-opening at folding line in the section 2 that consumes energy, hole diameter is the thickness d of plate, hole
The distance between hole is 5d.
Claims (3)
1. there is the buckling of circumferential trapezoidal induction unit to induce support, including confinement section (1) and energy consumption section (2) for a kind of end,
It is characterized in that: further including a support flat segments (3), the energy consumption section (2) is arranged at support flat segments (3) both ends, in institute
The other end setting of the energy consumption section confinement section is stated, energy consumption section (2) is by least one circumferential trapezoidal induction unit (7) along branch
The axis direction of support forms；The trapezoidal induction unit (7) of circumferential direction is circumferentially arranged successively by m circumferential trapezoidal subelement (8)
The space body that a section is polygon is formed, the number of edges of the space body is 2m, and wherein m is the integer more than or equal to 2；It is described
Circumferential trapezoidal subelement (8) is the space for collinearly folding formation two-by-two by the equicrural ladder plate four identical pieces of being generally aligned in the same plane
Body, equicrural ladder plate four identical pieces of is conllinear two-by-two and intersects at a vertex, according to respectively equicrural ladder plate one counterclockwise
(9), equicrural ladder plate two (10), equicrural ladder plate three (11) and equicrural ladder plate four (12), wherein equicrural ladder plate one (9) and
Equicrural ladder plate two (10), equicrural ladder plate two (10) and equicrural ladder plate three (11), equicrural ladder plate four (12) and isosceles ladder
The common edge of shape plate one (9) is crest line (13), and the common edge of equicrural ladder plate three (11) and equicrural ladder plate four (12) is valley line
(14)；Adjacent equicrural ladder plate is foldable outwardly along crest line (13), is folded inward along valley line (14)；The outward folding is
Refer to that the angle between the exterior normal of adjacent equicrural ladder plate becomes larger, the exterior normal for referring to adjacent equicrural ladder plate is folded inward
Between angle become smaller；Described energy consumption section (2) hole-opening at all folding lines, the hole diameter are d, and d is equal to plate
Thickness；The distance between adjacent holes are equal and are equal to 5 times of hole diameters.
2. there is the buckling of circumferential trapezoidal induction unit to induce support for end according to claim 1, it is characterised in that: institute
It states end restraint section (1) to be made of regular polygon steel plate (4), the short girder steel of T-type (5) and connecting plate (6), regular polygon steel plate (4)
It is welded on energy consumption section (2) end, two short girder steels of T-type (5) and regular polygon steel plate (4) are welded to connect, and connecting plate (6) is clipped in two
The short girder steel of root T-type (5) is intermediate, and connecting plate (6) is connect with the short girder steel of T-type (5) with high-strength bolt, the number of edges of the steel plate (4)
More than or equal to 3.
3. there is the buckling of circumferential trapezoidal induction unit to induce support for end according to claim 1, it is characterised in that: institute
It states support flat segments (3) to be made of the steel pipe (15) and regular polygon steel plate (4) that section is regular polygon, regular polygon steel plate
(4) it is welded on the end of the steel pipe (15) of equilateral polygon section, energy consumption section (2) and regular polygon steel plate (4) are welded to connect, described
The number of edges in steel pipe (15) section is more than or equal to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029835.5A CN106760008B (en) | 2016-11-15 | 2016-11-15 | A kind of end has the buckling induction support of circumferential trapezoidal induction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029835.5A CN106760008B (en) | 2016-11-15 | 2016-11-15 | A kind of end has the buckling induction support of circumferential trapezoidal induction unit |
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| Publication Number | Publication Date |
|---|---|
| CN106760008A CN106760008A (en) | 2017-05-31 |
| CN106760008B true CN106760008B (en) | 2019-04-19 |
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| CN201611029835.5A Active CN106760008B (en) | 2016-11-15 | 2016-11-15 | A kind of end has the buckling induction support of circumferential trapezoidal induction unit |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015192200A1 (en) * | 2014-06-18 | 2015-12-23 | Cast Connex Corporation | Structural yielding fuse |
| TW201619475A (en) * | 2014-11-28 | 2016-06-01 | 江文財 | Assembly buckling restrained brace using steel bar |
| CN205329889U (en) * | 2016-01-15 | 2016-06-22 | 东南大学 | Interior sleeve pipe restraint folding steel plate energy dissipation brace |
| CN105888348A (en) * | 2016-06-01 | 2016-08-24 | 东南大学 | Buckling control support with diamond type energy dissipation units at ends |
-
2016
- 2016-11-15 CN CN201611029835.5A patent/CN106760008B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015192200A1 (en) * | 2014-06-18 | 2015-12-23 | Cast Connex Corporation | Structural yielding fuse |
| TW201619475A (en) * | 2014-11-28 | 2016-06-01 | 江文財 | Assembly buckling restrained brace using steel bar |
| CN205329889U (en) * | 2016-01-15 | 2016-06-22 | 东南大学 | Interior sleeve pipe restraint folding steel plate energy dissipation brace |
| CN105888348A (en) * | 2016-06-01 | 2016-08-24 | 东南大学 | Buckling control support with diamond type energy dissipation units at ends |
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| Publication number | Publication date |
|---|---|
| CN106760008A (en) | 2017-05-31 |
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