CN106639461B - A kind of casing buckling induction support with elongated degree four folding line types induction unit - Google Patents
A kind of casing buckling induction support with elongated degree four folding line types induction unit Download PDFInfo
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- CN106639461B CN106639461B CN201611011115.6A CN201611011115A CN106639461B CN 106639461 B CN106639461 B CN 106639461B CN 201611011115 A CN201611011115 A CN 201611011115A CN 106639461 B CN106639461 B CN 106639461B
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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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- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a kind of casing bucklings with elongated degree four folding line types induction unit to induce support, it is made of end restraint section, buckling induction section, inner sleeve and outer tube, buckling induces section to be made of at least one four folding line type of elongated degree induction unit along the axis direction of support, the end positioned at four folding line type of the elongated degree induction unit of buckling induction section two sides be by one perpendicular to axis direction and vertex the plane clipped of cross section；Four folding line types of single elongated degree induction unit is circumferentially arranged successively by m four folding line type subelements of identical elongated degree and forms the space body that a section is polygon, and four folding line type subelements of the elongated degree are by four trapezoidal plates in the same plane by folding the space body formed.Casing 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 section enters yielding stage, and good hysteretic energy performance can play the effect of damper again.
Description
Technical field
The invention belongs to building structure technology fields, induce unit with four folding line types of elongated degree more particularly to a kind of
Casing buckling 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
The problem of energy difference, is arranged casing outside support, constrains the compressive buckling of support, composition is buckling-restrained, and buckling restrained brace is only
Core plate is connect with other components, and suffered load is all undertaken by core plate, and outer sleeve and packing material only constrain core plate by lateral deflection
Song makes core plate can enter surrender in tension and by pressure, thus, the Hysteresis Behavior of buckling restrained brace is excellent.It is buckling-restrained
Support on the one hand can be to avoid the defect of common support tension and compression bearing capacity significant difference, on the other hand with the consumption of metal damper
Energy ability, can serve as " fuse ", so that main structure is substantially in elastic range in the structure.Therefore, buckling-restrained
The application of support can improve anti-seismic performance of traditional braced frame under middle shake and big shake comprehensively.
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 consume energy in above-mentioned support unit thickness, construction of plate etc. at the folding line are consistent at non-folding line, no
Conducive to the generation plastic hinge at folding line.In addition, these supports are made of end restraint section, buckling section and casing, casing is in buckling
The outside of section, and do not supported on the inside of buckling section, it is easy to produce low order unstability inwardly, to weaken the energy consumption energy of support
Power.
Summary of the invention
Goal of the invention：Since existing buckling restrained brace is under course under cyclic loading, it is connected with buckling restrained brace
Component or joints are larger；And under geological process, existing buckling restrained brace yield deformation position has randomness, in order to
Overcome the problems, such as it is of the existing technology, the present invention will introduce four folding line types of elongated degree induction unit to traditional common support on,
A kind of casing buckling induction support with elongated degree four folding line types induction unit is formed, is to select constraint is anti-to bend in engineering structure
Preferential selection when song support.
Technical solution：To achieve the above object, the technical solution adopted by the present invention is：
A kind of casing buckling induction support with elongated degree four folding line types induction unit, is lured by end restraint section, buckling
Section, inner sleeve and outer tube composition are led, the end restraint section is located at the both ends of buckling induction section, and the buckling induces section
It is clipped between inner sleeve and outer tube, the inner sleeve is connect with an end restraint section respectively with outer tube, it is characterised in that：
Buckling induces section to be made of at least one four folding line type of elongated degree induction unit along the axis direction of support, is located at the buckling
Induce section two sides four folding line type of elongated degree induction unit end be by one perpendicular to axis direction and cross vertex it is transversal
The plane that face is clipped；Single four folding line types of the elongated degree induction unit is by m four folding line type subelement edges of identical elongated degree
Circumferential direction is arranged successively the space body to form that a section is polygon, and the number of edges of the polygon is 2m, and m is more than or equal to 2
Integer；Four folding line type subelements of the elongated degree are by four trapezoidal plates in the same plane by folding the space formed
Body, four trapezoidal plates are conllinear two-by-two and intersect at a vertex, according to respectively trapezoidal plate one counterclockwise, trapezoidal plate two, ladder
Shape plate three and trapezoidal plate four, the common edge between them are respectively the first common edge, the second common edge, third common edge and the 4th
Common edge；First common edge, the second common edge and third common edge are crest line, and the 4th common edge is valley line, adjacent ladder
Shape plate is foldable outwardly along crest line, is folded inward along valley line；It is described be foldable outwardly refer to adjacent trapezoidal plate exterior normal it
Between angle become larger, the angle being folded inward between the exterior normal for referring to adjacent trapezoidal plate becomes smaller；The trapezoidal plate one from
It is equal with the free margins of trapezoidal plate four by side, and the two and the first common edge are unequal；The free margins and ladder of the trapezoidal plate two
The free margins of shape plate three is equal, and the two and third common edge are unequal.
The end restraint section is made of the connecting plate that the components such as square plate, the short girder steel of T-type and beam column are reserved, rectangular
Steel plate is welded on buckling induction section end, and two short girder steels of T-type and square plate are welded to connect, and it is short that connecting plate is clipped in two T-types
Among girder steel, connecting plate is connect with the short girder steel of T-type with high-strength bolt.
The left end of the inner sleeve and the square plate of left end confinement section are welded to connect, the right end of inner sleeve and right side
The square plate of end restraint section has one section of 1/40 distance not less than buckling induction segment length；The right end of the outer tube with
The square plate of right-hand end confinement section is welded to connect, and the left end of outer tube and the square plate of left end confinement section have one section
Not less than 1/40 distance of buckling induction segment length.
Gap between the buckling induction section and inner sleeve and outer tube is no more than 5mm；The inner sleeve and housing
Pipe is all made of the hollow steel pipe of circular cross-section.
Plate thickness in the buckling induction section at all folding lines is the half of plate plate thickness, and the folding line being made of crest line is thick
Degree variation is in inner surface side, and the folding line being made of valley line, thickness change is in outer surface side.
Beneficial effect：
The present invention it is a kind of with it is elongated degree four folding line types induction unit casing buckling induce support, by end restraint section,
Buckling induces section, inner sleeve and outer tube to constitute.Buckling induction support induces unit using four folding line types of elongated degree, makes component more
Add a variety of sections of different shapes easy to form, supported design is more flexible.Along bearing length direction adjacent cross sectional to folding
The length of trace is inconsistent, make to be supported in loading process be more easier generate axial deformation, thus prevent support occur to early it is whole
Body buckling.And four folding line type of the elongated degree induction unit in the support in buckling induction section is by pre-set by crest line and paddy
The folding line that line is formed, while plate thickness being reduced to original half at folding line, it is more easier induction and is supported under geological process,
High-order buckling mode is generated, the energy dissipation capacity of support is promoted.Inner sleeve and outer tube is respectively set in outside in buckling induction section
So that the yield line at folding line is expanded as plastic zone, there is better energy dissipation capacity than common support.And internal and external casing can also
Lateral support is provided to folding line in buckling induction section, effectively improves the axial carrying capacity of support.The present invention can be in work
Factory's processing only needs the built-in fitting for using the components such as bolt and beam column to connect, not only ensure that component quality, but also reduces existing to scene
The wet construction workload of field, energy conservation and environmental protection.Casing buckling induction support with elongated degree four folding line types induction unit had both had
The flexible arrangement of the anti-buckling support of general restriction, can more effectively dissipate seismic energy the advantages that, and can solve with buckling about
Bundle branch supports the problems such as component or larger joints being connected, and has good Popularizing of A.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the sectional view (main view) of structure of the invention；
Fig. 3 is end restraint section schematic diagram；
Fig. 4 is that buckling induces section schematic diagram；
Fig. 5 is inner sleeve schematic diagram；
Fig. 6 is outer tube schematic diagram；
Fig. 7 is A-A profile in Fig. 2；
Fig. 8 is square plate schematic diagram；
Fig. 9 is the short girder steel schematic diagram of T-type；
Figure 10 is connecting plate schematic diagram；
Figure 11 is that four folding line types of elongated degree induce cell schematics；
Figure 12 is four folding line type elicitor cell schematics of elongated degree；
Figure 13 is that four folding line types of elongated degree induce subelement to fold frontal plane schematic diagram；
Figure 14 is crest line plate thickness schematic diagram at folding line；
Figure 15 is valley line plate thickness schematic diagram at folding line.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown in Figure 1, 2, it is made of end restraint section 1, buckling induction section 2, inner sleeve 3 and outer tube 4.End restraint section
1 is fixed on the both ends of buckling induction section 2.The left end of inner sleeve and the square plate 5 of left end confinement section 1 are welded to connect, interior
The right end of casing and the square plate of right-hand end confinement section have a distance, 1/ of distance not less than buckling induction segment length
40；The right end of outer tube and the square plate 5 of right-hand end confinement section 1 are welded to connect, and the left end of outer tube and left end are about
The square plate of beam section has a distance, 1/40 of distance nor less than buckling induction segment length.As shown in Fig. 5~7, buckling is lured
Section 2 to be led to be clipped between inner sleeve 3 and outer tube 4, buckling induces the gap between section and inner sleeve and outer tube to be no more than 5mm,
Inner sleeve 3 and outer tube 4 are all made of the hollow steel pipe of circular cross-section.
As shown in figure 3, the connecting plate 7 that end restraint section 1 is reserved by components such as square plate 5, the short girder steel 6 of T-type and beam columns
Composition, square plate 5 are welded on buckling induction 2 end of section, and the short girder steel 6 of two T-types is welded to connect with square plate 5, square bar
Plate 5 and the short girder steel 6 of T-type are respectively as shown in Fig. 8,9.Connecting plate 7 is clipped among the short girder steel 6 of two T-types, connecting plate 7 and the short steel of T-type
Beam 6 is connected with high-strength bolt, and wherein connecting plate 7 is as shown in Figure 10.
According to Fig.4, buckling induction section 2 is by 50 four folding line types of elongated degree induction units 8 along the axis side of support
To composition, the end toothed segment portion of buckling induction section 2 is clipped perpendicular to the cross section of axis direction and a vertex 22 excessively by one
Point, then buckling induces all sides in section end in the same plane.In Figure 11, single four folding line types of elongated degree induction unit 8 is
The space that formed section is 24 side shapes is circumferentially arranged successively by 12 four folding line type subelements 9 of identical elongated degree
Body.According to Figure 12, Figure 13, four folding line type subelements 9 of elongated degree are by four trapezoidal plates in the same plane by folding
The space body of formation forms, and four trapezoidal plates are conllinear two-by-two and intersect at a vertex, according to be respectively counterclockwise trapezoidal plate 1,
Trapezoidal plate 2 11, trapezoidal plate 3 12 and trapezoidal plate 4 13, wherein the common edge between them is respectively the first common edge 14, second
Common edge 15, third common edge 16 and the 4th common edge 17.First common edge 14, the second common edge 15 and third are public
Side 16 is crest line, and the 4th common edge 17 is valley line, and adjacent trapezoidal plate is foldable outwardly along crest line, is folded inward along valley line；
The angle being foldable outwardly between the exterior normal for referring to adjacent trapezoidal plate becomes larger, and is folded inward and refers to adjacent trapezoidal plate
Angle between exterior normal becomes smaller.The free margins 18 of the trapezoidal plate one and the free margins 21 of trapezoidal plate four are equal, and the two with
First common edge 14 is unequal；The free margins 19 of the trapezoidal plate two and the free margins 20 of trapezoidal plate three are equal, and the two and the
Three common edges 16 are unequal.
Plate thickness d/2 in buckling induction section 2 at all folding lines is the half of plate plate thickness d, and the folding line being made of crest line is thick
Degree variation is in inner surface side, and the folding line being made of valley line, thickness change is in outer surface side.Crest line valley line part at folding line
Amplification is as shown in Figure 14, Figure 15, and letter A indicates that side is outer surface side in figure, and letter b indicates that side is inner surface side.
Claims (4)
1. a kind of casing buckling with elongated degree four folding line types induction unit induces support, by end restraint section（1）, buckling lures
Lead section（2）, inner sleeve（3）And outer tube（4）Composition, the end restraint section（1）Section is induced positioned at the buckling（2）Two
End, the buckling induce section（2）It is clipped in inner sleeve（3）With outer tube（4）Between, the inner sleeve and outer tube respectively with one
The connection of end restraint section, it is characterised in that：Buckling induces section（2）Unit is induced by least one four folding line type of elongated degree（8）Edge
Support axis direction composition, be located at the buckling induce section（2）The four folding line type of elongated degree of two sides induces unit（8）End
Portion is by one perpendicular to axis direction and mistake vertex（22）The plane clipped of cross section；Four folding line types of the single elongated degree
Induce unit（8）By m four folding line type subelements of identical elongated degree（9）It is polygon for being circumferentially arranged successively and forming a section
The space body of shape, the number of edges of the polygon are 2m, and m is the integer more than or equal to 2；Four folding line type subelements of the elongated degree
（9）For by four trapezoidal plates in the same plane, by folding the space body that is formed, four trapezoidal plates are two-by-two collinearly simultaneously
A vertex is intersected at, according to respectively trapezoidal plate one counterclockwise（10）, trapezoidal plate two（11）, trapezoidal plate three（12）With trapezoidal plate four
（13）, the common edge between them is respectively the first common edge（14）, the second common edge（15）, third common edge（16）With the 4th
Common edge（17）；First common edge（14）, the second common edge（15）With third common edge（16）For crest line, the 4th common edge
（17）For valley line, adjacent trapezoidal plate is foldable outwardly along crest line, is folded inward along valley line；The outward folding refers to adjacent
Trapezoidal plate exterior normal between angle become larger, angle between the exterior normal for referring to adjacent trapezoidal plate is folded inward and becomes
It is small；The free margins of the trapezoidal plate one（18）With the free margins of trapezoidal plate four（21）It is equal, and the two and the first common edge（14）
It is unequal；The free margins of the trapezoidal plate two（19）With the free margins of trapezoidal plate three（20）It is equal, and the two and third common edge
（16）It is unequal；The inner sleeve（3）Left end and left end confinement section（1）Square plate（5）It is welded to connect, inner sleeve
（3）Right end and right-hand end confinement section square plate（5）There is one section to induce section not less than buckling（2）The 1/40 of length away from
From；The outer tube（4）Right end and right-hand end confinement section（1）Square plate（5）It is welded to connect, outer tube（4）A left side
The square plate at end and left end confinement section（5）There is one section of 1/40 distance not less than buckling induction segment length.
2. the casing buckling according to claim 1 with elongated degree four folding line types induction unit induces support, feature
It is：The end restraint section（1）By square plate（5）, the short girder steel of T-type（6）The connecting plate reserved with components such as beam columns（7）
Composition, square plate（5）It is welded on buckling induction section（2）End, two short girder steels of T-type（6）With square plate（5）Welding connects
It connects, connecting plate（7）It is clipped in two short girder steels of T-type（6）Centre, connecting plate（7）With the short girder steel of T-type（6）It is connected with high-strength bolt.
3. the casing buckling according to claim 2 with elongated degree four folding line types induction unit induces support, feature
It is：The buckling induces section（2）With inner sleeve（3）And outer tube（4）Between gap be no more than 5mm；The inner sleeve
（3）And outer tube（4）All it is made of the hollow steel pipe of circular cross-section.
4. the casing buckling according to claim 1 with elongated degree four folding line types induction unit induces support, feature
It is：The buckling induces section（2）In plate thickness at all folding lines be plate plate thickness half, the folding line being made of crest line is thick
Degree variation is in inner surface side, and the folding line being made of valley line, thickness change is in outer surface side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011115.6A CN106639461B (en) | 2016-11-15 | 2016-11-15 | A kind of casing buckling induction support with elongated degree four folding line types induction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011115.6A CN106639461B (en) | 2016-11-15 | 2016-11-15 | A kind of casing buckling induction support with elongated degree four folding line types induction unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106639461A CN106639461A (en) | 2017-05-10 |
| CN106639461B true CN106639461B (en) | 2018-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611011115.6A Active CN106639461B (en) | 2016-11-15 | 2016-11-15 | A kind of casing buckling induction support with elongated degree four folding line types induction unit |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3796017A (en) * | 1972-04-24 | 1974-03-12 | M Meckler | Hydraulic structural apparatus |
| JPH10238159A (en) * | 1997-02-26 | 1998-09-08 | Taisei Corp | Vibration-damping construction and vibration-damping structure |
| CN201305932Y (en) * | 2008-12-06 | 2009-09-09 | 青岛理工大学 | Energy-consuming and shock-absorbing supporting device |
| KR101188784B1 (en) * | 2011-02-09 | 2012-10-10 | 조선대학교산학협력단 | Circular brace and Construction method using that |
| KR101209367B1 (en) * | 2011-05-02 | 2012-12-06 | 서울시립대학교 산학협력단 | Post reinforcing structure for buckling of braces in the steel moment connection frame |
| CN102605873A (en) * | 2012-03-22 | 2012-07-25 | 北京工业大学 | Buckling restrained brace with energy dissipation device sandwiched with lead layer and provided with steel plates at two ends and method for manufacturing buckling restrained brace |
| CN105507444B (en) * | 2016-01-15 | 2018-06-19 | 东南大学 | Inner sleeve constraint folds steel plate energy dissipation brace |
| CN105544763B (en) * | 2016-01-15 | 2018-07-20 | 东南大学 | Inside and outside double-jacket tube constraint folds steel plate energy dissipation brace |
| CN105507445B (en) * | 2016-01-15 | 2018-06-19 | 东南大学 | Outer tube constraint folds steel plate energy dissipation brace |
| 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 |
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2016
- 2016-11-15 CN CN201611011115.6A patent/CN106639461B/en active Active
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