CN106481137B - A kind of casing buckling induction support with bidirectional screw type induction unit - Google Patents
A kind of casing buckling induction support with bidirectional screw type induction unit Download PDFInfo
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- CN106481137B CN106481137B CN201611030069.4A CN201611030069A CN106481137B CN 106481137 B CN106481137 B CN 106481137B CN 201611030069 A CN201611030069 A CN 201611030069A CN 106481137 B CN106481137 B CN 106481137B
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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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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a kind of casing bucklings with bidirectional screw type induction unit to induce support, it is made of end restraint section, buckling induction section, inner sleeve and outer tube, buckling induction section is clipped between inner sleeve and outer tube, inner sleeve is connect with an end restraint section respectively with outer tube, and buckling induces section to be made of at least one bidirectional screw type induction unit along the axis direction of support；Bidirectional screw type induction unit is circumferentially to be arranged successively to form a section and be positive the space body of m polygon by m bidirectional screw type subelement, and bidirectional screw type subelement is the space body as made of the collinearly folding two-by-two of four pieces of triangular plates.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.The present invention can be prefabricated in the factory molding, reduce Contraction in Site workload, energy conservation and environmental protection.
Description
Technical field
The invention belongs to building structure technology fields, more particularly to a kind of casing with bidirectional screw type induction unit
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, constitutes buckling-restrained.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 by introduce bidirectional screw type induction unit to traditional common support on, formed
A kind of casing buckling induction support with bidirectional screw type induction unit, is when selecting constraining anti-buckling support in engineering structure
Preferential selection.
Technical solution: to achieve the above object, the technical solution adopted by the present invention are as follows:
It is a kind of with bidirectional screw type induction unit casing buckling induce support, by end restraint section, buckling induction section,
Inner sleeve and outer tube composition, the end restraint section are located at the both ends of buckling induction section, and the buckling induction section is clipped in
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: described
Buckling induces section to be made of at least one bidirectional screw type induction unit along the axis direction of support；The bidirectional screw type
Induction unit is circumferentially to be arranged successively to form a section and be positive the space body of m polygon by m bidirectional screw type subelement,
The number of edges m of the regular polygon is the integer more than or equal to 3；The bidirectional screw type subelement be by four pieces of triangular plates two-by-two
Space body made of conllinear folding, four pieces of triangular plates are respectively triangular plate one, triangular plate two, triangular plate three and triangle
Shape plate four, the common edge between them is respectively the first common edge, the second common edge and third common edge, wherein the second common edge
For crest line, the first common edge and third common edge are valley line；Triangular plate is foldable outwardly along crest line, along valley line to infolding
Folded, the angle being foldable outwardly between the exterior normal for referring to adjacent triangular plate becomes larger, and is folded inward and refers to adjacent three
Angle between the exterior normal of angular plate becomes smaller.
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 outer tube
All it is 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.The folding line being made of crest line,
Thickness change is in inner surface side, and the folding line being made of valley line, thickness change is in outer surface side.
The utility model has the advantages that
A kind of casing buckling with bidirectional screw type induction unit of the present invention induces support, by end restraint section, buckling
Section, inner sleeve and outer tube is induced to constitute.Buckling induces the torsion stiffness very little of the bidirectional screw type induction unit in section, causes
Component easily twists movement, to avoid premature generation overall collapse；And twist motion will lead to circumferential screw type
The folding line of induction unit is surrendered, to generate plastic deformation to consume energy, support is made to have good energy dissipation capacity and axial direction
Bearing capacity.In addition, inducing unit using bidirectional screw type, torsion clockwise and anticlockwise occurs respectively along axial direction, but protect
Bidirectional screw type induction unit end cross-sectional has been demonstrate,proved always without relative rotation, to make to support stress more reasonable.
Bidirectional screw type induction unit in the support in buckling induction section is by pre-set by crest line and valley line shape
At folding line, while plate thickness being reduced to original half at folding line, weaken the rigidity at folding line, it is easier in induction support
Buckling induces section under geological process, preset high order mode surrender can only occur, it is easier to generate plastic hinge at folding line, reach
To the purpose of dissipation seismic energy.Outside is respectively set inner sleeve in buckling induction section and outer tube makes plastic hinge at folding line
Line expands as plastic zone, has better energy dissipation capacity than common support.And internal and external casing can also be induced in section to buckling and be rolled over
Trace provides lateral support, effectively improves the axial carrying capacity of support.The present invention can only be needed in factory process to scene
It uses the built-in fitting of the components such as bolt and beam column to connect, not only ensure that component quality, but also reduce the wet construction workload at scene,
Energy conservation and environmental protection.Casing buckling induction support with bidirectional screw type induction unit is both with the cloth of the anti-buckling support of general restriction
Set flexibly, can more effectively dissipate seismic energy the advantages that, and can solve the component or section being connected with buckling restrained brace
The problems such as point stress is larger 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 bidirectional screw type induces cell schematics；
Figure 12 is bidirectional screw type subelement schematic diagram；
Figure 13 is that bidirectional screw type subelement folds 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
It leads section 2 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 9 bidirectional screw type induction units 8 along the axis direction group of support
At.In Figure 11, bidirectional screw type induces unit 8 to be circumferentially arranged successively shape by six identical bidirectional screw type subelements 9
It is the space body of regular hexagon at a section.According to Figure 12, Figure 13, bidirectional screw type subelement 9 is by four pieces of triangles
Plate collinearly forms two-by-two, respectively triangular plate 1, triangular plate 2 11, triangular plate 3 12 and triangular plate 4 13, he
Between common edge be respectively the first common edge 14, the second common edge 15 and third common edge 16, wherein the second common edge 15
For crest line, the first common edge 14 and third common edge 16 are valley line.Triangular plate is foldable outwardly along crest line, inside along valley line
It folds；Described be foldable outwardly refers to that the angle between the exterior normal of adjacent triangular plate becomes larger, be folded inward refer to it is adjacent
Angle between the exterior normal of triangular plate becomes smaller.
Plate thickness (d/2) in buckling induction section 2 at all folding lines is the half of plate plate thickness d, the folding line being made of crest line,
Thickness change 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 office at folding line
Portion amplifies 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 one
Side.
Claims (3)
1. a kind of casing buckling with bidirectional screw type induction unit induces support, section is induced by end restraint section (1), buckling
(2), inner sleeve (3) and outer tube (4) composition, the end restraint section (1) are located at the both ends of buckling induction section (2), institute
Buckling induction section (2) is stated to be clipped between inner sleeve (3) and outer tube (4), the inner sleeve and outer tube respectively with an end
Confinement section connection, it is characterised in that: buckling induction section (2) is by least one bidirectional screw type induction unit (8) along branch
The axis direction of support forms；Described bidirectional screw type induction unit (8) be by m bidirectional screw type subelement (9) circumferentially
It is arranged successively and to form a section and be positive the space body of the side m shape, the number of edges m of the positive side the m shape is the integer more than or equal to 3；Institute
Stating bidirectional screw type subelement (9) is space body made of collinearly being folded two-by-two as four pieces of triangular plates, four pieces of triangular plates point
Not Wei triangular plate one (10), triangular plate two (11), triangular plate three (12) and triangular plate four (13), the public affairs between them
Side is respectively the first common edge (14), the second common edge (15) and third common edge (16) altogether, wherein the second common edge (15) is
Crest line, the first common edge (14) and third common edge (16) are valley line；Triangular plate is foldable outwardly along crest line, along valley line to
Interior folding；Described be foldable outwardly refers to that the angle between the exterior normal of adjacent triangular plate becomes larger, be folded inward refer to it is adjacent
Triangular plate exterior normal between angle become smaller；The left end of the inner sleeve (3) is rectangular with left end confinement section (1)
Steel plate (5) is welded to connect, and the right end of inner sleeve (3) and the square plate (5) of right-hand end confinement section have one section to be not less than buckling
Induce 1/40 distance of section (2) length；The right end of the outer tube (4) and the square plate (5) of right-hand end confinement section (1)
It is welded to connect, the left end of outer tube (4) and the square plate (5) of left end confinement section have one section to induce segment length not less than buckling
1/40 distance of degree；Gap between buckling induction section (2) and inner sleeve (3) and outer tube (4) is no more than 5mm；Institute
It states inner sleeve (3) and outer tube (4) is all made of the hollow steel pipe of circular cross-section.
2. the casing buckling according to claim 1 with bidirectional screw type induction unit induces support, it is characterised in that:
The end restraint section (1) is made of the connecting plate (7) that the components such as square plate (5), the short girder steel of T-type (6) and beam column are reserved,
Square plate (5) is welded on buckling induction section (2) end, and two short girder steels of T-type (6) and square plate (5) are welded to connect, connection
Plate (7) is clipped among two short girder steels of T-type (6), and connecting plate (7) is connect with the short girder steel of T-type (6) with high-strength bolt.
3. the casing buckling according to claim 1 with bidirectional screw type induction unit induces support, it is characterised in that:
Plate thickness in buckling induction section (2) at all folding lines is the half of plate plate thickness, the folding line being made of crest line, thickness change
Change in inner surface side, 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 |
|---|---|---|---|
| CN201611030069.4A CN106481137B (en) | 2016-11-15 | 2016-11-15 | A kind of casing buckling induction support with bidirectional screw type induction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611030069.4A CN106481137B (en) | 2016-11-15 | 2016-11-15 | A kind of casing buckling induction support with bidirectional screw type induction unit |
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| Publication Number | Publication Date |
|---|---|
| CN106481137A CN106481137A (en) | 2017-03-08 |
| CN106481137B true CN106481137B (en) | 2019-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611030069.4A Active CN106481137B (en) | 2016-11-15 | 2016-11-15 | A kind of casing buckling induction support with bidirectional screw type induction unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108952288B (en) * | 2017-05-17 | 2021-01-26 | 大连大学 | Installation method of double-torsion anti-buckling device of buckling-restrained brace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002173981A (en) * | 2000-12-06 | 2002-06-21 | Shimizu Corp | Brace damper |
| JP2003090377A (en) * | 2001-09-14 | 2003-03-28 | Masao Inuzuka | Transmission device of load |
| JP2010249169A (en) * | 2009-04-13 | 2010-11-04 | Miwa Tec:Kk | Friction damper |
| 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 CN201611030069.4A patent/CN106481137B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002173981A (en) * | 2000-12-06 | 2002-06-21 | Shimizu Corp | Brace damper |
| JP2003090377A (en) * | 2001-09-14 | 2003-03-28 | Masao Inuzuka | Transmission device of load |
| JP2010249169A (en) * | 2009-04-13 | 2010-11-04 | Miwa Tec:Kk | Friction damper |
| 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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| CN106481137A (en) | 2017-03-08 |
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Application publication date: 20170308 Assignee: Nanjing Dongbiao Environmental Material Co.,Ltd. Assignor: SOUTHEAST University Contract record no.: X2020980009962 Denomination of invention: A buckling induced brace for casing with bidirectional spiral induced element Granted publication date: 20190101 License type: Common License Record date: 20201225 |
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