CN106760836A - A kind of sleeve pipe flexing with medial recess type induction unit induces support - Google Patents
A kind of sleeve pipe flexing with medial recess type induction unit induces support Download PDFInfo
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- CN106760836A CN106760836A CN201611030198.3A CN201611030198A CN106760836A CN 106760836 A CN106760836 A CN 106760836A CN 201611030198 A CN201611030198 A CN 201611030198A CN 106760836 A CN106760836 A CN 106760836A
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- section
- flexing
- plate
- medial recess
- recess type
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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
Abstract
Support is induced the invention discloses a kind of sleeve pipe flexing with medial recess type induction unit, it is made up of end restraint section, flexing induction section, inner sleeve and outer tube, flexing induction section is clipped between inner sleeve and outer tube, inner sleeve is connected with an end restraint section respectively with outer tube, and flexing induces section to be made up of along the axis direction of support at least one medial recess type induction unit；Medial recess type induction unit is circumferentially to be arranged in order that to form section be that the polygonal space body medial recess type subelements of positive m are by being generally aligned in the same plane the space body that interior two pieces of trapezoidal plates and four pieces of triangular plates are collinearly folded two-by-two by m medial recess type subelement.Sleeve pipe flexing induction support of the present invention, under small shake effect, the induction support of this flexing keeps elasticity, and when middle shake or big shake are acted on, flexing induction section enters yielding stage, and its good hysteretic energy performance can play the effect of damper again.
Description
Technical field
The invention belongs to building structure technology field, more particularly to a kind of sleeve pipe with medial recess type induction unit
Flexing induction support, it is adaptable to steel construction or concrete structure with buckling restrained brace.
Background technology
During steel construction or reinforced concrete structure use, common support is pressurized and can produce flexing phenomenon, works as branch
After support compressive buckling, rigidity and bearing capacity are drastically reduced.Under earthquake or wind action, the internal force of support is in compression and tension two
Back and forth change under the state of kind.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, in the outside setting sleeve pipe of support, the compressive buckling of constraint support constitutes buckling-restrained buckling restrained brace only core
Plate is connected with other components, and suffered load is all undertaken by core plate, and outer sleeve and packing material only constrain core plate compressive buckling,
Core plate is set to enter surrender in tension and by pressure, thus, the Hysteresis Behavior of buckling restrained brace is excellent.Buckling restrained brace
On the one hand the defect of common support tension and compression bearing capacity significant difference can be avoided, on the other hand the power consumption energy with metal damper
Power, can serve as " fuse " so that agent structure is substantially in elastic range in the structure.Therefore, buckling restrained brace
Application, can comprehensively improve anti-seismic performance of traditional support frame under middle shake and big shake.
Applicant proposed a kind of end on June 1st, 2016 has the flexing control of duplex pyramid type power consumption unit
Support（Application No. 201610380805.2）The flexing for having staggeredly pyramid power consumption unit with a kind of end controls support
（Application No. 201610384216.1）Basic power consumption unit be pyramid, pyramid power consumption unit be it is non-rigid can
Exhibition；So the difficulty that the power consumption of high-order buckling mode is pressed in flexing control support is larger.Applicant proposed one on June 1st, 2016
Planting end has the energy-dissipating type buckling restrained brace of symmetrical initial imperfection unit（Application No. 201610383430.5）And one kind
End has the flexing control support of brilliant power consumption unit（Application No. 201610380804.8）Geometric configuration be fixed
, design flexibility is small.And consumed energy in above-mentioned support unit thickness, construction of plate etc. at the folding line are consistent with non-folding line, no
Beneficial to the generation plastic hinge at folding line.In addition, these supports are made up of end restraint section, flexing section and sleeve pipe, sleeve pipe is in flexing
The outside of section, and flexing section inner side easily produces the low order unstability to inner side, so as to weaken the power consumption energy of support without support
Power.
The content of the invention
Goal of the invention：Because 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, and consumption
Energy hysteretic loop is not full.For the problem for overcoming prior art to exist, the present invention is introduced into medial recess type and induces unit to biography
On the common support of system, form a kind of sleeve pipe flexing with medial recess type induction unit and induce support, in being engineering structure
Prioritizing selection during from anti-buckling support.
Technical scheme：To achieve the above object, the technical solution adopted by the present invention is：
A kind of sleeve pipe flexing with medial recess type induction unit induces support, by end restraint section, flexing induction section, inner sleeve
Pipe and outer tube composition, the end restraint section are located at the two ends that the flexing induces section, and the flexing induction section is clipped in inner sleeve
Between pipe and outer tube, the inner sleeve is connected with an end restraint section respectively with outer tube, it is characterised in that：Flexing is induced
Section is made up of at least one medial recess type induction unit along the axis direction of support；Medial recess type induction unit is
Circumferentially it is arranged in order by m medial recess type subelement and forms a section for the polygonal space bodies of positive m, it is described just polygon
The side number m of shape is the integer more than or equal to 3；The medial recess type subelement is by being generally aligned in the same plane two pieces of interior trapezoidal plates
The space body collinearly folded two-by-two with four pieces of triangular plates, two pieces of trapezoidal plates and four pieces of triangular plates are according to difference counterclockwise
It is triangular plate one, triangular plate two, trapezoidal plate one, triangular plate three, triangular plate four and trapezoidal plate two, wherein triangular plate
One and triangular plate two, triangular plate three and triangle four common edge be crest line, triangular plate two and trapezoidal plate one, trapezoidal plate
One and triangular plate three, triangular plate four and trapezoidal plate two and trapezoidal plate two and triangular plate one common edge be valley line；It is adjacent
Two boards along crest line be foldable outwardly, along valley line to interior folding；The outward folding refers to the outer method of adjacent two boards
Angle between line becomes big, refers to that angle between the exterior normal of adjacent two boards diminishes to interior folding；Described each middle part
Triangular plate four in umbilicate type subelement overlaps with the free margins of the triangular plate one of adjacent medial recess type subelement, middle part
Triangular plate three in umbilicate type subelement overlaps with the free margins of the triangular plate two of adjacent medial recess type subelement.
The end restraint section is made up of the connecting plate that the components such as square plate, T-shaped short girder steel and beam column are reserved, square bar
Plate weld is welded to connect in flexing induction section end, two T-shaped short girder steels with square plate, and connecting plate is clipped in two T-shaped short steel
In the middle of beam, connecting plate is connected with T-shaped short girder steel with high-strength bolt.
The left end of the inner sleeve is welded to connect with the square plate of left end confinement section, the right-hand member of inner sleeve and right side
The square plate of end restraint section has one section of distance not less than the 1/40 of flexing induction segment length；The right-hand member 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 has one section with the square plate of left end confinement section
Distance not less than the 1/40 of flexing induction segment length.
The flexing induction section and the gap between inner sleeve and outer tube are no more than 5mm；The inner sleeve and outer tube
All it is made up of the hollow steel pipe of circular cross-section.
Thickness of slab in described flexing induction section at all folding lines is the half of plate thickness of slab, the folding line being made up of crest line,
Thickness change in inner surface side, the folding line being made up of valley line, thickness change is in outer surface side.
Beneficial effect：
A kind of sleeve pipe flexing with medial recess type induction unit of the present invention induces support, is induced by end restraint section, flexing
Section, inner sleeve and outer tube are constituted.The medial recess type induction unit that flexing induction section is used, configuration is simple, it is adaptable to various
The support of symmetrical cross-sectional shape.Folding line is arranged in the middle part on each bar side of supporting section, makes to be supported on section middle part and is more prone to hair
Raw local buckling, so that portion produces plastic hinge power consumption in cross section.On the other hand, plastic strain only occurs in middle part, support
Folding corner region is in elastic stage, while power consumption, ensure that the bearing capacity of support.Simultaneously, thus it is possible to vary middle part is recessed
Angle and folding line length between each folding line in swaged subelement, adjust the energy dissipation capacity of support.The institute in flexing induction section
There is the thickness of slab at folding line to be reduced to original half, be more prone to produce high order mode surrender under induction is supported on geological process,
Enable larger strain at folding line so as to form yield line simultaneously, reach the purpose of dissipation seismic energy.Lured in flexing
Leading outside in section and being respectively provided with inner sleeve and outer tube makes the yield line at folding line expand as plastic zone, has than common support
More preferable energy dissipation capacity.And internal and external casing can also provide lateral support to folding line in flexing induction section, be effectively improved branch
The axial carrying capacity of support.The present invention can only need to the built-in fitting with components such as bolt and beam columns in factory process to scene
Connection, both ensure that component quality, and the wet trade workload at scene, energy-conserving and environment-protective are reduced again.With the induction of medial recess type
The sleeve pipe flexing induction support of unit had both had the flexible arrangement of the anti-buckling support of general restriction, and can more effectively dissipate seismic energy
The advantages of amount, the problems such as can solve the component or larger joints that are connected with buckling restrained brace again, with good
Popularizing of A.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the profile of structure of the invention（Main view）；
Fig. 3 is end restraint section schematic diagram；
Fig. 4 is that flexing induces section schematic diagram；
Fig. 5 is inner sleeve schematic diagram；
Fig. 6 is outer tube schematic diagram；
Fig. 7 is A-A profiles in Fig. 1；
Fig. 8 is square plate schematic diagram；
Fig. 9 is T-shaped short girder steel schematic diagram；
Figure 10 is connecting plate schematic diagram；
Figure 11 is that medial recess type induces cell schematics；
Figure 12 is medial recess type subelement schematic diagram；
Figure 13 is that medial recess type subelement folds frontal plane schematic diagram；
Figure 14 is crest line thickness of slab schematic diagram at folding line；
Figure 15 is valley line thickness of slab schematic diagram at folding line.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in Figure 1, 2, it is made up of end restraint section 1, flexing induction section 2, inner sleeve 3 and outer tube 4.End restraint section
1 is fixed on the two ends that flexing induces section 2.The left end of inner sleeve is welded to connect with the square plate 5 of left end confinement section 1, interior
The right-hand member of sleeve pipe has a segment distance, 1/ of distance not less than flexing induction segment length with the square plate of right-hand end confinement section
40；The right-hand member of outer tube is welded to connect with the square plate 5 of right-hand end confinement section 1, and the left end of outer tube is with left end about
The square plate of beam section has a segment distance, 1/40 of distance nor less than flexing induction segment length.As shown in Fig. 5 ~ 7, flexing is lured
Lead section 2 to be clipped between inner sleeve 3 and outer tube 4, flexing induction section and the gap between inner sleeve and outer tube are no more than 5mm,
Inner sleeve 3 and outer tube 4 are all made up 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, T-shaped short girder steel 6 and beam columns
Composition, square plate 5 is welded on flexing induction section 2 end, and two T-shaped short girder steels 6 are welded to connect with square plate 7, square bar
Plate 5 and T-shaped short girder steel 6 are respectively as shown in Fig. 8,9.Connecting plate 7 is clipped in the middle of two T-shaped short girder steels 6, connecting plate 7 and T-shaped short steel
The high-strength bolt connection of beam 6, wherein connecting plate 7 are as shown in Figure 10.
According to Fig. 4, flexing induces section 2 to induce unit 8 along the axis direction group of support by 25 medial recess types
Into.As in Figure 11, single medial recess type induction unit 8 be by four identical medial recess type subelements 9 circumferentially successively
One section of arrangement form is the space body of quadrangle, wherein triangular plate four in each medial recess type subelement 9
Free margins 21 overlaps with the free margins 18 of the triangular plate one of adjacent medial recess type subelement 9, in medial recess type subelement 9
The free margins 20 of triangular plate three overlapped with the free margins 19 of the triangular plate two of adjacent medial recess type subelement 9.Root
According to shown in Figure 12, Figure 13, medial recess type subelement 9 is conllinear two-by-two by two pieces of trapezoidal plates and four pieces of triangular plates, according to the inverse time
Pin is respectively triangular plate 1, triangular plate 2 11, trapezoidal plate 1, triangular plate 3 13, triangular plate 4 14 and trapezoidal
Plate 2 15, the wherein common edge of triangular plate 1 and triangular plate 2 11, triangular plate 3 13 and triangle 4 14 are crest line
16, triangular plate 2 11 and trapezoidal plate 1, trapezoidal plate 1 and triangular plate 3 13, triangular plate 4 14 and trapezoidal plate 2 15
It is valley line 17 with the common edge of trapezoidal plate 2 15 and triangular plate 1.Adjacent two boards are foldable outwardly along crest line 16, edge
Valley line 17 to interior folding.The outward folding refers to that the angle between the exterior normal of adjacent two boards becomes big, to interior folding
Refer to adjacent two boards exterior normal between angle diminish.
Thickness of slab in flexing induction section 2 at all folding lines is the half of plate thickness of slab, and the folding line being made up of crest line, thickness becomes
Change in inner surface side, the folding line being made up of valley line, thickness change is in outer surface side.Crest line valley line partial enlargement at folding line
As shown in Figure 14, Figure 15, letter A represents side for outer surface side in figure, and letter b represents that side is inner surface side.
Claims (5)
1. a kind of sleeve pipe flexing with medial recess type induction unit induces support, by end restraint section（1）, flexing induction section
（2）, inner sleeve（3）And outer tube（4）Composition, the end restraint section（1）Section is induced positioned at the flexing（2）Two ends, institute
State flexing induction section（2）It is clipped in inner sleeve（3）With outer tube（4）Between, the inner sleeve and outer tube respectively with an end
Confinement section is connected, it is characterised in that：Flexing induces section（2）Unit is induced by least one medial recess type（8）Along support
Axis direction is constituted；The single medial recess type induction unit（8）By m identical medial recess type subelement（9）Along ring
To be arranged in order to be formed a section be m sides shape space body, m is the integer more than or equal to 3；The medial recess type subelement
（9）It is the space body collinearly folded two-by-two by the two pieces of trapezoidal plates and four pieces of triangular plates in being generally aligned in the same plane, two pieces
Trapezoidal plate and four pieces of triangular plates are respectively triangular plate one according to counterclockwise（10）, triangular plate two（11）, trapezoidal plate one
（12）, triangular plate three（13）, triangular plate four（14）With trapezoidal plate two（15）, wherein triangular plate one（10）And triangular plate
Two（11）, triangular plate three（13）With triangle four（14）Common edge be crest line（16）, triangular plate two（11）And trapezoidal plate
One（12）, trapezoidal plate one（12）With triangular plate three（13）, triangular plate four（14）With trapezoidal plate two（15）With trapezoidal plate two
（15）With triangular plate one（10）Common edge be valley line（17）；Adjacent two boards are along crest line（16）It is foldable outwardly, along
Valley line（17）To interior folding；The outward folding refers to that the angle between the exterior normal of adjacent two boards becomes big, to interior folding
Refer to adjacent two boards exterior normal between angle diminish；Described each medial recess type subelement（9）In triangle
The free margins of plate four（21）With adjacent medial recess type subelement（9）Triangular plate one（10）Free margins（18）Overlap, in
Portion's umbilicate type subelement（9）In triangular plate three free margins（20）With adjacent medial recess type subelement（9）Triangle
The free margins of plate two（19）Overlap.
2. the sleeve pipe flexing with medial recess type induction unit according to claim 1 induces support, it is characterised in that：
Described end restraint section（1）By square plate（5）, T-shaped short girder steel（6）The reserved connecting plate with the component such as beam column（7）Composition,
Square plate（5）It is welded on flexing induction section（2）End, two T-shaped short girder steels（6）With square plate（5）It is welded to connect, connects
Plate（7）It is clipped in two T-shaped short girder steels（6）Centre, connecting plate（7）With T-shaped short girder steel（6）Connected with high-strength bolt.
3. the sleeve pipe flexing with medial recess type induction unit according to claim 1 induces support, it is characterised in that：
The inner sleeve（3）Left end and left end confinement section（1）Square plate（5）It is welded to connect, inner sleeve（3）Right-hand member with
The square plate of right-hand end confinement section（5）There is one section to induce section not less than flexing（2）The distance of the 1/40 of length；The overcoat
Pipe（4）Right-hand member and right-hand end confinement section（1）Square plate（5）It is welded to connect, outer tube（4）Left end and left end
The square plate of confinement section（5）There is one section of distance not less than the 1/40 of flexing induction segment length.
4. the sleeve pipe flexing with medial recess type induction unit according to claim 1 induces support, it is characterised in that：
The flexing induces section（2）With inner sleeve（3）And outer tube（4）Between gap be no more than 5mm；The inner sleeve（3）With it is outer
Sleeve pipe（4）All it is made up of the hollow steel pipe of circular cross-section.
5. the sleeve pipe flexing with medial recess type induction unit according to claim 1 induces support, it is characterised in that：
Flexing induces section（2）In thickness of slab at all folding lines be plate thickness of slab half, the folding line being made up of crest line, including thickness change
Surface side, the folding line being made up of valley line, thickness change is in outer surface side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611030198.3A CN106760836B (en) | 2016-11-15 | 2016-11-15 | A kind of casing buckling induction support with depression in centre type induction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611030198.3A CN106760836B (en) | 2016-11-15 | 2016-11-15 | A kind of casing buckling induction support with depression in centre type induction unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106760836A true CN106760836A (en) | 2017-05-31 |
| CN106760836B CN106760836B (en) | 2019-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611030198.3A Active CN106760836B (en) | 2016-11-15 | 2016-11-15 | A kind of casing buckling induction support with depression in centre type induction unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN106760836B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000265706A (en) * | 1999-03-19 | 2000-09-26 | Sumitomo Metal Ind Ltd | Buckling restraint brace |
| KR20140073002A (en) * | 2012-12-05 | 2014-06-16 | 조선대학교산학협력단 | Brace friction damper |
| WO2015192200A1 (en) * | 2014-06-18 | 2015-12-23 | Cast Connex Corporation | Structural yielding fuse |
| CN105544763A (en) * | 2016-01-15 | 2016-05-04 | 东南大学 | Internal and external double-sleeve restraining folded steel plate energy-consuming support |
| 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 CN201611030198.3A patent/CN106760836B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000265706A (en) * | 1999-03-19 | 2000-09-26 | Sumitomo Metal Ind Ltd | Buckling restraint brace |
| KR20140073002A (en) * | 2012-12-05 | 2014-06-16 | 조선대학교산학협력단 | Brace friction damper |
| WO2015192200A1 (en) * | 2014-06-18 | 2015-12-23 | Cast Connex Corporation | Structural yielding fuse |
| CN105544763A (en) * | 2016-01-15 | 2016-05-04 | 东南大学 | Internal and external double-sleeve restraining folded steel plate energy-consuming support |
| 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 |
|---|---|
| CN106760836B (en) | 2019-04-12 |
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